Beautiful January snow covering the ground at this church in Greensboro, North Carolina, in 2022.

Typical clutter of bikes, street furniture etc

With those typical Belgium streetlights.

RC8 Kepler/GSO + réducteur Astro-Physics CCDT67 pour une focale résultante de 1084 mm, ASI294MC-Pro... sans filtre contre la pollution lumineuse + luminance avec ASI2600MM-Pro avec filtre CLS

ASI294MC : 820 x 30" (Gain 120/Offset 30) = 6h50

ASI2600MM-Pro : 180 x 60" (Gain 100/Offset 15) = 3h00

Total intégration de 9h50

NINA, Sirilic/Siril et Pixinsight (BlurXTerminator by Russell Croman).

In diesen Stellwerk wurde meine Leidenschaft zur Eisenbahn wieder entdeckt, war schon "vorbelastet" weil meine Mutter bei der Bahn arbeitete zu DDR Zeiten.

Durch diesen netten Kollegen der da vorne sitzt Herr T.P. , dadurch wurde das Stellwerk Gso fast mein zweites Zu Hause. Er war halt auch ein Freak. Er hat jeden Zug der in seinen Dienst durch fuhr aufgeschrieben in seine Privatdokumentation. Mit Bespannung Tfz und Wagen Gattung ob NV/FV oder Gz Verkehr. In den Büchern würde ich gern mal wieder stöpern.

Das Stellwerk hatte im Zuge der Estwierung 2006 auch ausgedient und wurde auch zeitnah abgerissen.

GSO 8" f/4 Imaging Newtonian

Imaging Cameras

Canon EOS 6D

Mount: Sky-Watcher AZ-EQ6 PRO

Accessories

GSO 2" Photo-Visual Coma Corrector.

Filter: IDAS LPS-P2

Location: suburbia Melbourne Bortle 5

Software: Adobe Lightroom · Aries Productions Astro Pixel Processor (APP)

Acquisition details

Date: April 23rd 2025

Frames:

100×30″ unguided.

The Eagle Nebula (Messier 16 or M16,) is a young open cluster of stars in the constellation Serpens. The dark center of the nebula was made famous as the "Pillars of Creation" when imaged by the Hubble Space Telescope. It is approximately 5700 light years from Earth.

I thought I would upload this alternative processing which shows the more traditional reds for comparison.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted Ha, Oiii

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•Ha 20X180 seconds - Bin 1x1

•Oiii 20X180 seconds - Bin 1x1

•Oiii 20X180 seconds - Bin 1x1

Total Integration Time: 2 hours

02., 04. 05. May 2016. GSO 8"-Newton, HEQ5, Canon EOS 1000Da. Total exposure time: 4 hours 14 minutes.

The Eagle Nebula (Messier 16 or M16,) is a young open cluster of stars in the constellation Serpens. The dark center of the nebula was made famous as the "Pillars of Creation" when imaged by the Hubble Space Telescope. It is approximately 5700 light years from Earth.

This is our latest version of M16 with our new equipment. It is also processed as a bi-color image, but with a % blend of HA, Oiii and Oiii mapped to RGB in PixInsight.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted Ha, Oiii

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•Ha 20X180 seconds - Bin 1x1

•Oiii 20X180 seconds - Bin 1x1

•Oiii 20X180 seconds - Bin 1x1

Total Integration Time: 2 hours

Moon , Sony α6600 , GSO(Kasai) GS-150CC + ED屈折用0.8xレデューサーII , SIGHTRON Quad BP Filter II , Sky-Watcher EQ6-R

ベランダとは言え寒さが堪えます(>_<)

100枚ほど撮影、その内の20枚をスタックしています。

シーイングは良くなかったのですが、QBPフィルターを使う事でシャープに撮影出来ました。

GSO 8" f/4 Imaging Newtonian

Imaging Cameras

Canon EOS 60D

Mount

Sky-Watcher AZ-EQ6 PRO

Filters

IDAS LPS-P2 50 mm

Accessories

GSO 2" Photo-Visual Coma Corrector

Software

Adobe Lightroom · Aries Productions Astro Pixel Processor (APP)

Acquisition details

Dates:

April 30, 2025

Frames:

IDAS LPS-P2 50 mm: 100×30″(50′) no guiding.

The Eagle Nebula (Messier 16 or M16,) is a young open cluster of stars in the constellation Serpens. The dark center of the nebula was made famous as the "Pillars of Creation" when imaged by the Hubble Space Telescope. It is approximately 5700 light years from Earth.

This is a reprocess of some older data using some new noise reduction techniques and SHO combination and the stars removed.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted Ha, Oiii

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•Ha 20X180 seconds - Bin 1x1

•Oiii 20X180 seconds - Bin 1x1

•Sii 20X180 seconds - Bin 1x1

Total Integration Time: 3 hours

Saturn is the 6th planet from the Sun and the second largest gas giant in the Solar System, following Jupiter. It is easily visible in the night sky at the right time of the year.

I took this image while I was waiting for the clouds to clear on my main imaging target. It consists of 3 x 60 second videos with each of the RGB filters, extracted with Autostakkert and combined and sharpened in PixInsight.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted L, R, G and B

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•R 60 second video - 360p

•G 60 second video - 360p

•B 60 second video - 360p

The Eagle Nebula (Messier 16 or M16,) is a young open cluster of stars in the constellation Serpens. The dark center of the nebula was made famous as the "Pillars of Creation" when imaged by the Hubble Space Telescope. It is approximately 5700 light years from Earth.

This is a reprocess of some older data using some new noise reduction techniques and HOO combination.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted Ha, Oiii

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•Ha 20X180 seconds - Bin 1x1

•Oiii 20X180 seconds - Bin 1x1

•Oiii 20X180 seconds - Bin 1x1

Total Integration Time: 2 hours

NGC2070, The Tarantula Nebula, is a large region of ionized gas surrounding a collection of newly-forming stars at the eastern end of the stellar bar in the Large Magellanic Cloud and is located approximately 170000 light years away.

It has been several months of less than ideal conditions to setup for Deep Sky Astrophotography, so when we had a clear moonless night last night, I took the opportunity to capture a couple of hours on the Tarantula Nebula. I was concerned that as it had been quite a while since my last image, that I would have forgotten the process. The ASIAir and ZWO equipment worked like clockwork with no issues at all. I managed only 20 x 180 seconds (1 hour) each of Ha and Oiii, but am very happy with the final image.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted Ha, Oiii

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details: (HOO Combination

•Ha 20X180 seconds - Bin 1x1 (Red)

•Oiii 20X180 seconds - Bin 1x1 (Green)

•Oiii 20X180 seconds - Bin 1x1 (Blue)

Total Integration Time: 2 hours

The Eagle Nebula (Messier 16 or M16,) is a young open cluster of stars in the constellation Serpens. The dark center of the nebula was made famous as the "Pillars of Creation" when imaged by the Hubble Space Telescope. It is approximately 5700 light years from Earth.

This is a reprocess of some older data using some new noise reduction techniques and SHO combination.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted Ha, Oiii

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•Ha 20X180 seconds - Bin 1x1

•Oiii 20X180 seconds - Bin 1x1

•Sii 20X180 seconds - Bin 1x1

Total Integration Time: 3 hours

M83 (the Southern Pinwheel Galaxy) is a barred spiral galaxy and is approximately 15 million light-years away from Earth. It is in the constellation borders of Centaurus and Hydra.

This was imaged over 2 nights with the luminance on one night, and the RGB 2 nights later.

Equipment Details:

•6 Inch GSO Ritchey Chretien Astrograph

•Skywatcher NEQ6 Mount

•SBIG STT 8300m CCD Camera cooled to -20'c

•SBIG FW8G-STT Filter Wheel

•Baader Red, Green, Blue & Luminance Filters

•Orion ST 80mm Guide Scope

•ZWO ASI120c Guide Camera

•Polemaster for polar alignment

Exposure Details:

•Luminance 49X300 seconds - Bin 1x1

•Red 6X300 seconds - Bin 1x1

•Green 6X300 seconds - Bin 1x1

•Blue 6X300 seconds - Bin 1x1

Total Integration Time: 5 hours and 30 minutes

Sadly not enough exposure time. 90x70s, B, F, D. GSO 200/1000, HEQ5, Canon EOS 1000Da, SW 70/500, QHY5-IIc.

Comet Leonard is a long orbital period comet, taking an 80,000 year journey around the Sun. It was discovered by G. J. Leonard at the Mount Lemmon Observatory in Arizona on 3rd January, 2021.

As the comet was higher in the sky last night, I was able to image a little longer before it set behind the roof of the house.

This time I used 30 second exposures but no guiding as it was still twilight when I starting imaging, and no guide stars were visible.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm CMOS Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted Red, Green and Blue filters

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm Mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•Red 23X30 seconds - Bin 1x1

•Green 24X30 seconds - Bin 1x1

•Blue 25X30 seconds - Bin 1x1

Total Integration Time: 36 Minutes.

Flickr Explored 01/12/2014

HA:= 25 x 1200s

O3:= 15 x 1200s

Altair Astro GSO RC 8"

MESU 200 Mount

QSI 690 CCD

Astrodon 3nm Hydrogen Alpha filter.

Astrodon 3nm O3 filter.

Taken on the nights of 22nd, 24th of September and 31st October 2014.

Captured with MaximDL

Maxim DL Guiding

Stacked, aligned and processed with Pixinsight.

Steve Furlong (c) 2014

NGC6872, discovered in 1835 by English astronomer John Herschel, is a large barred spiral galaxy in the constellation Pavo. It is approximately 212 million light-years from Earth and is believed to be five billion years old. It is interacting with the lenticular galaxy IC 4970, which is apparently less than one twelfth as large.

This is an extremely small, distant object, that needs a lot more imaging time to do it justice. It is infact the most distant object we have imaged. The night started off well, but by midnight there were 50km per hour gusts of wind which put an end to the night, and I was only able to get 4 hours. I am still very happy with how it turned out.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted L, R, G and B

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•L 20X180 seconds - Bin 1x1

•R 20X180 seconds - Bin 1x1

•G 20X180 seconds - Bin 1x1

•B 20X180 seconds - Bin 1x1

Total Integration Time: 4 hours

Jupiter, the largest planet in our solar system, is a gas giant. It is the 5th planet from the sun, and easily visible in the night sky at the right time of the year.

The Great Red Spot seen in this photo is a giant storm that is known to have existed since at least the 17th century. Jupiter is currently in opposition. which means it is at it's closest distance to Earth. and this is why it is so bright in the night sky.

I took this image while I was waiting for the clouds to clear on my main imaging target. It consists of 3 x 60 second videos with each of the RGB filters, extracted with Autostakkert and combined and sharpened in PixInsight.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted L, R, G and B

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•R 60 second video - 360p

•G 60 second video - 360p

•B 60 second video - 360p

For the first time in many months, we had a clear night a few nights ago, and I was able to try out some new equipment. This was the first image taken using my new ASIAir to control the entire process. I was surprised that the entire process worked seamlessly and without issue. I was very happy. I had also spent many hours over the last few months trying to collimate this RC6 telescope, and although it is still not perfect, it is far better than it was. Using the ASIair has enabled an easier setup and workflow, allowed better cable management, and with the ASI1600mm, a lighter setup hanging off the end of the focuser.

The Lagoon Nebula (M8), is a giant interstellar cloud in the constellation Sagittarius. It is classified as an emission nebula.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted Ha, Oiii and Sii Filters

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•Ha 20X180 seconds - Bin 1x1

•Oiii 20X180 seconds - Bin 1x1

•Oiii 20X180 seconds - Bin 1x1

Total Integration Time: 3 hours

www.astrobin.com/ehc4ly/

astro.carballada.com/the-spider-nebula-sh2-234-ic417-in-h...

Located in the constellation of Auriga IC417, or the Spider is an emission nebula approximately 100 light years across.

It is located about 10,000 light years from Earth.

It is a hotbed of new star formation.

This image was obtained using the previous GSO RC10 and the new CFF10, same camera and filters.

I am still on process to finish the collimation of this new equipement, the results are so good so far.

Equipment

Imaging Telescopes Or Lenses

CFF Telescopes RC250mm F/8 · RC10 (Altair Astro RC250-TT 10" RC Truss Tube) · Teleskop Service TS Photoline 107mm f/6.5 Super-Apo

Imaging Cameras

ZWO ASI183MM-Cool · QHYCCD QHY268PH M

Mounts

Skywatcher EQ6R Pro · Mesu 200 Mk2

Filters

Astrodon HA 36mm - 5nm · Astrodon O-III 36mm - 5nm · Astrodon R Gen.2 E-series 36mm · Astrodon G Gen.2 E-series 36mm · Astrodon B Gen.2 E-series 36mm

Accessories

Pegasus Astro Falcon Rotator · Pegasus Astro Ultimate Powerbox v2 · Astrolink 4.0 mini · ZWO EFW · QHYCCD QHYCFW3M-US · MoonLite NiteCrawler WR30 · TALON6 R.O.R · MoonLite CSL 2.5" Focuser with High Res Stepper Motor · Telescope-Service RC 0.8x Corrector Reducer for Ritchey Chretien · Telescope-Service TS 2" Flattener

Software

Pleiades Astrophoto PixInsight · Seqence Generator Pro

Guiding Telescopes Or Lenses

QHYCCD QHYOAG-M · Teleskop Service TSOAG9 Off-Axis Guider

Guiding Cameras

ZWO ASI174MM Mini · ZWO ASI290MM Mini

Acquisition details

Dates:

Nov. 30, 2021 · Dec. 1, 2021 · Dec. 5, 2021 · Dec. 6, 2021 · Jan. 31, 2022

Frames:

Astrodon B Gen.2 E-series 36mm: 160x120" (5h 20') (gain: 0.00) -5°C bin 1x1

Astrodon G Gen.2 E-series 36mm: 160x120" (5h 20') (gain: 0.00) bin 1x1

Astrodon HA 36mm - 5nm: 144x600" (24h) (gain: 56.00) -5°C bin 1x1

Astrodon O-III 36mm - 5nm: 120x600" (20h) (gain: 1600.00) -15°C bin 1x1

Astrodon R Gen.2 E-series 36mm: 160x120" (5h 20') (gain: 0.00) -5°C bin 1x1

Integration:

60h

Avg. Moon age:

16.82 days

Avg. Moon phase:

8.26%

RA center: 05h28m03s.340

DEC center: +34°24′41″.25

Pixel scale: 0.942 arcsec/pixel

Orientation: 179.370 degrees

Field radius: 0.492 degrees

Resolution: 3126x2088

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility

NGC6302, know as the Bug Nebula or the Butterfly Nebula is a bipolar planetary nebula in the constellation of Scorpius. The structure in the nebula is among the most complex ever observed in planetary nebulae and its central star is also one of the hottest stars known (Surface temperature is in excess of 250,000 degrees Celsius). It is approximately 3392 light years from earth.

This was a very quick imaging session before the clouds rolled in, and so is only 2 hours of narrowband subs. 1 hour of Hydrogen A (Ha) and 1 hour of Oxygen 3(Oiii), but processed using the H-O-O palette giving 3 hours..As this object is very small in our 6 inch RC telescope it is difficult to extract a lot of detail, but I am very happy how it turned out, and the ASIair made the whole process of setup and capturing very quick and easy.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted Ha, Oiii

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•Ha 20X180 seconds - Bin 1x1 (Red)

•Oiii 20X180 seconds - Bin 1x1 (Green)

•Oiii 20X180 seconds - Bin 1x1 (Blue)

Total Integration Time: 2 hours

Scope: GSO RC6 with WO 0.8x flattener

Camera: ASI1600MM pro

Guider Camera: ASI290MM

Guider: Orion thin Off-axis guider

Mount: Orion Sirius EQMOD driven

Software: APT, DSS, PS, StarNET

Integration:

~10HRS Ha in 6min exposures,

~10HRS Oiii in 6min exposures

Flickr Explored 18/04/2014

L:= 36 x 600s

R:= 6 x 600s

G:= 6 x 600s

B:= 5 x 600s

Altair Astro GSO RC 8"

NEQ6 Pro

Atik 383L+

Taken on the nights of 31st May, and the 3rd, 5th, 6th and 13th June 2013.

Captured with Artemis.

PHD Guiding

Stacked, aligned and processed with Pixinsight.

An incomplete data set that I have tried to do my best with in order to try and finish this image. Seriously lacking in colour data due to the typical UK weather.

Steve Furlong (c) 2014

M81 è una grande e luminosa galassia a spirale nella costellazione dell'Orsa Maggiore, ad una distanza stimata dalla Via Lattea (la nostra galassia) di 12 milioni di anni luce.

Le due dimensioni apparenti sono di 26.9’x14.1’ (per confronto la Luna piena ha una dimensione apparente di 30'), corrispondenti ad un diametro reale di 92000 anni luce, quindi è leggermente più piccola della Via Lattea.

M81 è la galassia più significativa di un gruppo di 34 galassie tra cui compare anche la galassia "sigaro" M82.

Nella parte inferiore della immagine si scorge la debole galassia nana Holmberg X, che probabilmente si trova dietro M81 e si è formata dalla condensazione di materia proveniente da M81: il suo colore blu indica che è composta da giovani stelle massicce formatisi "solo" 100 milioni di anni fa.

----------

M81 is a large and brilliant spiral galaxy in Ursa Major constellation, with an estimated distance from the Milky Way of 12 million light years.

It has apparent dimension of 26.9’x14.1’ corresponding to a real diameter of 92000 light years, so it is a bit smaller than Milky Way.

M81 is the largest galaxy of a group containing 34 members, among which there is also the Cygar Galaxy M82.

On the bottom of the image it is visible also the faint dwarf galaxy Holmberg X, which is probably located behind M81 and was formed via the condensation of a tidal tail; its blue color is due to young massive stars formed only about 100 million years ago.

Technical data

Image taken in November/December 2021 from Promiod (Aosta Valley, Italy)

RC12 GSO Truss (diameter 304mm, focal lenght 2432mm)

Mount GM2000 HPSII

CCD Moravian G3-16200 with filters Astrodon Tru-Balance Gen2 E-Serie LRGB

Exposures and sensor temperature:

L 41x300" bin2 -25C

R 21x300" bin2 -25C

G 21x300" bin2 -25C

B 21x300" bin2 -25C 

Total exposure time 8h40’

Guide with OAG Moravian and Moravian camera G1-0301

Acquisition sw : Voyager, PHD2

Processing sw: Pixinsight 1.8, Photoshop CS5, StarXTerminator, Topaz DenoiseAI

www.robertomarinoni.com/

Eq:

Scope: GSO 8" f/4 with 2" Moonlite autofocuser, flocked

Coma corrector: TS GPU

Mount: EQ6-R

Camera: Nikon D750 mod

Guide scope: ZWO 280/60

Guide camera: ZWO ASI 120MC-S

Filter: Baader UV/IR cut

Acquisition:

Location: central Poland, Bortle 5/6

Lights: 140x90s ISO 1600, 26x30s ISO 1600, 28x10s ISO 1600

Darks: none

Flats: x80 per night

Bias: x100

Total integration time: 3h 48min

Software: Pixinsight (+rc-astro), Photoshop

www.astrobin.com/3grbtv

Thanks to the good seeing last night, it was possible to prepare this mosaic.

It was made using the Classic Cassegrain 8" from my remote observatory and a IMX174 camera.

It could be one of the latest images with the QHY5III174 at native f12 2400mm because I will change it soon to fire at f19 3800 again.

Also at the same time I will use a new ASI183M at f12 to obtain better spectrophotography.

Details about this installation using a dual camera setup for planetary imaging on a remote location at

astro.carballada.com/new-dual-camera-set-up-on-cc8/

Anyway, it's another opportunity to try moon processing.

Technical card

Imaging telescopes or lenses: GSO 8" f12 Classical Cassegrain

Imaging cameras: QHYCCD QHY5III174

Mounts: Mesu 200 Mk2

Software: Pleiades Astrophoto PixInsight · FireCapture · Emil Kraaikamp Autostackert! 3 · Registax

Filters: Astronomik Proplanet 642 - 842 nm

Accessory: ZWO EFW · TALON6 R.O.R · MoonLite CSL 2.5" Focuser with High Res Stepper Motor

Date: April 18, 2021

Time: 20:00

Frames: 10000

FPS: 50.00000

Focal length: 2400

Resolution: 2258x1804

Data source: Own remote observatory

Remote source: Non-commercial independent facility

M83 (the Southern Pinwheel Galaxy) is a barred spiral galaxy and is approximately 15 million light-years away from Earth. It is in the constellation borders of Centaurus and Hydra.

This was imaged over 2 nights with the luminance on one night, and the RGB 2 nights later. The image was taken with our new 6 Inch GSO Ritchey Chretien Astrograph, which has a longer focal length of 1370mm as compared to the 800mm of the Quattro. Because there is only 30 minutes of each channel in RGB, My helper had to do a lot of processing to remove the noise and bring out the galaxy.

Equipment Details:

•6 Inch GSO Ritchey Chretien Astrograph

•Skywatcher NEQ6 Mount

•SBIG STT 8300m CCD Camera cooled to -20'c

•SBIG FW8G-STT Filter Wheel

•Baader Red, Green, Blue & Luminance Filters

•Orion ST 80mm Guide Scope

•ZWO ASI120c Guide Camera

•Polemaster for polar alignment

Exposure Details:

•Luminance 49X300 seconds - Bin 1x1

•Red 6X300 seconds - Bin 1x1

•Green 6X300 seconds - Bin 1x1

•Blue 6X300 seconds - Bin 1x1

Total Integration Time: 5 hours and 30 minutes

Using an ASI183MM-C at GSO 8" f/12 Classical Cassegrain Reflector.

2500mm f/12 with a Mesu 200 mk2 mount.

It's a mosaic of three teselas. 60GB video data processed.

La galassia a spirale NGC 2683 nella costellazione della Lince è conosciuta tra gli appassionati di astronomia con il soprannome di "Galassia UFO": infatti la sua forma allungata e e i due rigonfiamenti luminosi centrali richiamano alla mente l'iconica navicella degli alieni.

Dal punto di vista fisico, si tratta di una spirale con dimensioni apparenti di 9.3'x2.2' e magnitudine 10.6, distante 25 milioni di anni luce.

Si presenta con una inclinazione di 78°, mostrando un nucleo molto compatto e una zona ricca di polveri dalla parte opposta del disco.

Interessante notare quell'area blu sul bordo sinistro della galassia: si tratta di una zona di formazione stellare.

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NGC 2683 is a spiral galaxy visible in the constellation Lynx, with an apparent size of 9.3'x2.2' and magnitude 10.6.

It is known among amateur astronomers as the UFO Galaxy, due to its shape very similar to a flying saucer seen almost side-on.

In fact, it is inclined by 78°, showing a very compact nucleus and an area rich in dust on the opposite side of the disk.

The external parts of the disk appear inclined compared to the internal parts: note a clear blue star formation area on the left edge (north is on the left).

Technical data

GSO RC12 Truss - Aperture 304mm, focal lenght 2432mm, f/8

Mount 10Micron GM2000 HPSII

Camera ZWO ASI 2600 MM Pro with filter wheel 7 positions

Filters Astrodon Gen2 E-Serie Tru-Balance 50mm unmounted LRGB

Guiding system ZWO OAG-L with guide camera ASI 174MM

Exposure details:

L 48x300", RGB 19x300" all in bin3 -15C gain 100

Total integration time: 8h45'

Acquisition: Voyager, PHD2

Processing: Pixinsight 1.8, Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator

SQM-L: 21.09   

Location: Promiod (Aosta Valley, Italy), own remote observatory

Date 16/17/18 December 2023

www.robertomarinoni.com

La nebulosa Testa di Cavallo - chiamata anche Barnard 33 - è sicuramente uno degli oggetti più famosi del cielo. Tecnicamente si tratta di una nebulosa oscura formata da polveri dense e gas che si proietta su una nebulosa ad emissione di colore rosso alle sue spalle.

La nebulosa si trova nella costellazione di Orione, ad una distanza di 1500 anni dalla Terra.

Visualmente è difficilissima da osservare: io ci sono riuscito solo una volta usando un telescopio da 50cm di diametro sotto un cielo buio e usando un filtro apposito, ma anche in queste condizioni è comunque molto debole.

La fotografia invece permette di farla risaltare molto bene, insieme al turbinio di gas e polveri di questa zona.

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The Horsehead Nebula - also called Barnard 33 - is certainly one of the most famous objects in the sky.

Technically, it is a dark nebula formed by dense dust and gas that projects onto a red emission nebula behind it.

The nebula is located in the constellation of Orion, at a distance of 1500 years from Earth.

Visually, it is very difficult to observe: I was able to observe it only once using a 50cm diameter telescope under a dark sky and using a special filter, but even in these conditions it is still very faint.

Photography, on the other hand, allows it to stand out very well, together with the swirl of gas and dust in this area.

Technical data

GSO RC12 Truss - Aperture 304mm, focal lenght 2432mm, f/8

Mount 10Micron GM2000 HPSII

Camera ZWO ASI 2600 MM Pro with filter wheel 7 positions

Filters Astrodon Gen2 E-Serie Tru-Balance 50mm unmounted LRGB

Guiding system ZWO OAG-L with guide camera ASI 174MM

Exposure details:

L 62x300", RGB 24x300" for each channel, all in bin3 -15C gain 100

Total integration time: 14h50'

Acquisition: Voyager, PHD2

Processing: Pixinsight 1.8, Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator

SQM-L: 21.00   

Location: Promiod (Aosta Valley, Italy), own remote observatory

Data obtained in 6 nights in November/December 2024

www.robertomarinoni.com

NGC4038 & NGC4039 - The Antennae Galaxies are a pair of galaxies undergoing a galactic collision in the constellation Corvus. They are currently going through a starburst phase, in which the collision of clouds of gas and dust, with entangled magnetic fields, causes rapid star formation. The are approximately 45 million light years from Earth, and were discovered in 1785 by William Herschel.

I was lucky enough to get two clear nights in a row this week, and due to it being in the middle of winter, I was set up and imaging by 6.30pm. Everything went very smoothly with the ASIAir pro and very happy with the result.

Equipment Details:

• 6 Inch GSO Ritchey-Chretien (RC) F9 1369mm Focal length

• Skywatcher NEQ6 Mount

• ZWO ASI1600mm Cmos Camera cooled to -10'c

• ZWO EFW7 Filter Wheel

• Baader 36mm unmounted L, R, G, B

• Orion ST80 80mm Guide Scope

• ZWO ASI120mm mini Guide Camera

• ZWO ASIAIR Pro for full automation

Exposure Details: (LRGB Combination)

• Lum 60X180 seconds - Bin 1x1

• Red 20X180 seconds - Bin 1x1

• Green 20X180 seconds - Bin 1x1

• Blue 15X180 seconds - Bin 1x1

Total Integration Time: 5 hours & 45 mins

La galassia a spirale M 74 si trova nella costellazione dei Pesci: ha una magnitudine apparente di 9.4, risultando quindi uno degli oggetti più deboli del catalogo di Messier.

La sua distanza dalla nostra galassia (la Via Lattea) è di 30 milioni di anni luce per una estensione reale è di 92000 anni luce (poco più piccola della Via Lattea).

Per via della particolare angolazione con cui si mostra, è possibile seguire i bracci a spirale dal centro fino alle deboli regioni esterne. Nei bracci a spirale sono visibili diverse regioni HII (regioni di formazione stellare): la più grande ha un diametro di 600 anni luce.

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M74 is a spiral galaxy in Pisces constellation, with apparent magnitude 9.4.

Its distance fom Milky Way is 30 million light years, with a real extension of 92000 light years (a bit smaller than Milky Way). Due to its face-on view it is possible follow the spiral arms from the centre to the dim outer regions. Several HII regions are visible in the arms: the largest one has a diameter of 600 light years.

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Technical data

Data obtained from August to November 2021 and September 2025 from Promiod (Aosta Valley, Italy)

RC12 GSO Truss (diameter 304mm, focal lenght 2432mm)

Mount GM2000 HPSII

CCD Moravian G3-16200 (2021) and CMOS ASI 2600MM PRO (2025)

Filters Astrodon Gen2 E-Serie LRGB + Ha 5nm

Exposures and sensor temperature with Moravian 16200:

L 10x600" bin2 -20C + 19x600" bin2 -25C

R 10x600" bin2 -20C + 5x600" bin2 -25C

G 10x600" bin2 -20C + 4x600" bin2 -25C

B 10x600" bin2 -20C + 4x600" bin2 -25C 

Exposure and sensor temperature with ASI 2600 MM PRO:

L 29x300" bin3 -15C gain 100

Ha 11x600" bin3 -15C gain 100

Total exposure time 16h15'

Guide with OAG Moravian and Moravian camera G1-0301

Guide with ZWO OAG-L and ASI 174MM

Acquisition sw : Voyager, PHD2

Processing sw: Pixinsight 1.8, Photoshop CS5, StarXTerminator, BlurXTerminator, NoiseXTerminator

www.robertomarinoni.com/

Telescope: GSO 150mm (6") F5 newtonian

Camera: Canon 750D (T6i) modified

Tracking: iOptron CEM25P + ZWO 60/280 guider + QHY5L-ii

Filter: Optolong L-PRO

290 x 120s ISO 1600(9h40 total exposure time)

Bortle 7

2022/05/20 - 2022/05/21 - 2022/05/22

Omega Centauri is a globular cluster in the constellation of Centaurus. First identified by Edmond Halley in 1677, is located approximately 17,000 light-years from Earth. It is the largest globular cluster in our galaxy and has a diameter of 150 light-years and is believed to contain about 10 million stars. It is different from most other galactic globular clusters as it is thought to have originated as the core remnant of a disrupted dwarf galaxy.

This was just a quick imaging session, prior to the clouds rolling in. Again using the ASIAir pro to control the entire session, I was very happy with how the night went. There were no issues and everything flowed nicely until the clouds and rain appeared 3 hours before they were supposed to.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted L, R, G and B

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•L 10X180 seconds - Bin 1x1

•R 10X180 seconds - Bin 1x1

•G 10X180 seconds - Bin 1x1

•B 10X180 seconds - Bin 1x1

Total Integration Time: 2 hours

La Crescent Nebula - letteralmente "nebulosa a mezzaluna" - è una nebulosa visibile nella costellazione del Cigno. Deve il suo nome al fatto che la sua parte più luminosa forma una specie di arco, visibile nell'immagine sulla parte sinistra della nebulosa stessa: facendo tuttavia lunghe esposizioni fotografiche, emergono particolari anche sulla parte destra della nebulosa, che quindi perde la sua forma a mezzaluna assumendo invece una forma ellittica.

La nebulosa è generata da una stella massiccia che si trova al suo interno e che perde massa per mezzo di un intenso vento stellare: l'interazione tra questo materiale e il denso mezzo interstellare circostante ha creato come una sorta di guscio attorno alla stella stessa. L'estensione della nebulosa è di circa 16 anni luce, mentre la distanza è di 4700 anni luce.

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The Crescent Nebula—literally "crescent nebula"—is a nebula visible in the constellation Cygnus. It owes its name to the fact that its brightest part forms a sort of arch, visible in the image on the left side of the nebula itself. However, with long exposures, details also emerge on the right side of the nebula, which then loses its crescent shape and takes on an elliptical shape instead.

The nebula is generated by a massive star within it, which is losing mass through an intense stellar wind: the interaction between this material and the dense surrounding interstellar medium has created a sort of shell around the star itself. The nebula extends approximately 16 light-years, while its distance is 4,700 light-years.

Technical data

GSO RC12 Truss - Aperture 304mm, focal lenght 2432mm, f/8

Mount 10Micron GM2000 HPSII

Camera ZWO ASI 2600 MM Pro with filter wheel 7 positions

Filters Astrodon Gen2 E-Serie Tru-Balance 50mm unmounted RGB, Ha 5nm, OIII 5nm

Guiding system ZWO OAG-L with guide camera ASI 174MM

Exposure details:

RGB 8x300" for each channel, Ha 55x600", OIII 50x600",

all in bin3 -15C gain 100

Total integration time: 19h30'

Acquisition: Voyager, PHD2

Processing: Pixinsight 1.8, Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator

SQM-L: 20.96   

Location: Promiod (Aosta Valley, Italy), own remote observatory

Data obtained in 6 nights between July 2023 and July 2024

www.robertomarinoni.com

A more subtle Hubble Palette channel mix ratio of the spectral wavelengths of light, to highlight the different elements in this interesting Deep Sky Object.

Also see the previous version, which was proceeded to more clearly highlight the elements of Hydrogen and Sulfur at the red end of the Spectrum, and the doubly ionized Oxygen at the blue end of the Electromagnetic Spectrum of Light. Rosette Nebula in Narrowband.

About this image:

A Hydrogen-Alpha + Sulfur-II + Oxygen-III Narrowband image of the Rosette Nebula (also known as NGC 2237 or Caldwell 49).

The Rosette Nebula is a large, spherical H II region located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, as the stars formed from the nebula's matter.

The cluster and nebula are at a distance of 5,000 light-years from Earth and measure roughly 50 light-years in diameter. The radiation from the young stars excite the atoms in the nebula, causing it to emit radiation (producing the emission of the nebula at specific spectral lines that we can image).

Narrowband wavelengths of the light spectra in this image:

The Hubble Palette (HST)

Hydrogen-Alpha - 656.3nm

Oxygen-III - 500.7nm

Sulfur-II - 672.4nm

Gear:

GSO 6" f/4 Imaging Newtonian Reflector Telescope.

Baader Mark-III MPCC Coma Corrector.

Celestron SkySync GPS Accessory.

Orion Mini 50mm Guide Scope.

Orion StarShoot Autoguider.

Celestron AVX Mount.

QHYCCD PoleMaster.

Celestron StarSense.

Canon 60Da DSLR.

Aurora Flatfield Panel.

Baader Planetarium 7nm Ha Narrowband filter.

Baader Planetarium 8nm SII Narrowband filter.

Baader Planetarium 8.5nm OIII Narrowband filter.

Tech:

Guiding in Open PHD 2.6.2.

Image acquisition in Sequence Generator Pro.

Pre-Processing and Linear workflow in PixInsight.

PixelMath RGB channel mixing and combinations.

Finished in Photoshop.

Astrometry Info:

View an Annotated Sky Chart of this image.

Center RA, Dec: 97.959, 4.991

Center RA, hms: 06h 31m 50.111s

Center Dec, dms: +04° 59' 26.502"

Size: 1.44 x 1.13 deg

Radius: 0.917 deg

Pixel scale: 3.24 arcsec/pixel

Orientation: Up is -180 degrees E of N

View this image in the World Wide Telescope.

Flickr Explore:

Explore-2017-02-13

Photo usage and Copyright:

Medium-resolution photograph licensed under Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International Terms (CC BY-NC-ND 4.0). For High-resolution Royalty Free (RF) licensing, contact me via my site: Contact.

Martin

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GSO j200mm f4 + SXVF-M25C

2h10min - Light polluted sky

Scope: GSO RC6 with WO 0.8x flattener

Camera: ASI1600MM pro

Guider Camera: ASI290MM

Guider: Orion thin Off-axis guider

Mount: Orion Sirius EQMOD driven

Software: APT, DSS64, PS

Integration:

4HRS Ha in 6min exposures,

~2HRS ea R, G, B

EQUIPMENT

Imaging telescope: GSO Newtonian 150/610 mm HPS Newtonian

Imaging camera: ZWO Optical ASI533MC Pro

Mount: Equatorial Losmandy GM8

Guiding telescope: QHYCCD Refractor 30/130 mm QHY MINI GUIDE SCOPE

Guiding camera: QHYCCD QHY 5L-II

Filters: Optolong Light pollution L-Pro Filter 2.00" 90%

Accessories: Coma corrector Explore Scientific 2.00"

ACQUISITION

Date Fri May 8th 2020

Seeing 2 / 5

Transparency 4 / 5

Sky Darkness: Bortle #7 Ambient Temperature: 27.0 ºF

Camera Sensor Temperature: -10.0 ºC

Binning: 1x1

Gain: 100 (Unity)

Offset: 70

NGC 3521 is a spiral galaxy located approximately 26 million light-years away from Earth in the constellation Leo.

Equipment Details:

•6 Inch GSO Ritchey-Chretien (RC) F9 1370mm Focal length

•Skywatcher NEQ6 Mount

•ZWO ASI1600mm Cmos Camera cooled to -10'c

•ZWO EFW7 Filter Wheel

•Baader 36mm unmounted L, R, G, B

•Orion ST80 80mm Guide Scope

•ZWO ASI120mm mini Guide Camera

•ZWO ASIAIR Pro for full automation

Exposure Details:

•Lum 50X180 seconds - Bin 1x1

•Red 8X180 seconds - Bin 1x1

•Green 8X180 seconds - Bin 1x1

•Blue 8X180 seconds - Bin 1x1

Total Integration Time: 3 hours and 40 minutes

Equipment:

GSO RC8

1800mm f8

Moravian CCD G2-8300FW10

Astrodon LRGB Filter

Losmandy G11 LFE Photo

Guiding:

Starlight Lodestar an Celestron OAG + PHD

Date: Januar 2013

IC 342 è una galassia a spirale nella costellazione boreale della Giraffa: ha dimensioni apparenti ragguardevoli (poco più piccola della dimensione apparente della Luna piena vista ad occhio nudo), eppure è stata scoperta solo nel 1890, come mai?

La spiegazione più plausibile è sicuramente legata alla sua debole luminosità: trovandosi in direzione del piano della nostra Galassia, la sua luce è fortemente indebolita dalle polveri della Via Lattea, responsabili anche dell'inconsueto colore marroncino/rossastro come si può vedere nell'immagine proposta (di solito galassie di questo tipo mostrano un nucleo giallino e bracci a spirale di colore azzurro).

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IC 342 is a spiral galaxy in the northern constellation of Camelopardalis: it has a considerable apparent size (slightly smaller than the apparent size of the full Moon seen with the naked eye), yet it was discovered only in 1890, why?

The most plausible explanation is certainly linked to its weak luminosity: being in the direction of the plane of our Galaxy, its light is strongly weakened by the dust of the Milky Way, also responsible for the unusual brownish/reddish color as can be seen in the proposed image (usually galaxies of this type show a yellowish nucleus and blue spiral arms).

Technical data

GSO RC12 Truss - Aperture 304mm, focal lenght 2432mm, f/8

Mount 10Micron GM2000 HPSII

Camera ZWO ASI 2600 MM Pro with filter wheel 7 positions

Filters Astrodon Gen2 E-Serie Tru-Balance 50mm unmounted LRGB

Guiding system ZWO OAG-L with guide camera ASI 174MM

Exposure details:

L 76x300", RGB 24x300" for each channel, Ha 64x300", all in bin3 -15C gain 100

Total integration time: 17h40'

Acquisition: Voyager, PHD2

Processing: Pixinsight 1.8, Photoshop CS5, StarXTerminator, NoiseXTerminator, BlurXTerminator

SQM-L: 21.00 

Location: Promiod (Aosta Valley, Italy), own remote observatory

Date 1/6/27/28/30 December 2024

www.robertomarinoni.com

OTA: Newtonian Celestron 130 mm/f5 modified

Mount: Skywatcher Heq 5

Imaging Camera: Canon 700D astro modified

Telescope Guide: Gso 50mm

Camera Guide: QHY5L II Mono

Baader Mk III Coma Corrector

Polemaster Eletronic Polar Scope

Total Exposure: 02:15 hours (subs 300 sec)

Deep Sky Stacker: Calibration and stacking

Adobe Photoshop Cs2 : Data Processing,

Pulg-in: Hasta la vista, green, astroflat pro

PHD Guiding 2: Guide

Darks, Dark Flats, Flats and Bias apply

Serra Negra ( Bortle 4) /São Paulo/Brasil . 12/2019

Nome: Nebulosa da Águia, NGC 6611, Messier 16

Tipo: Aglomerado aberto estelar com nebulosidade

Distância: aprox. 7.000 anos-luz

Magnitude Aparente: 6,4

Constelação: Serpente (Cauda) [1]

A Nebulosa da Águia é uma notável região ativa de formação estelar localizada na constelação da Serpente (cauda). A nebulosa, uma nuvem gigante de gás interestelar e poeira, já criou um considerável aglomerado de estrelas jovens. O aglomerado é também chamado de NGC 6611 e a nebulosa como IC 4703. O aglomerado foi descoberto em 1745 por Philippe Loys de Chéseaux. Em 1764, Charles Messier catalogou novamente o aglomerado como M16 mas descreveu a presença de uma tênue névoa, provavelmente indicações da nebulosa. [1]

Este enxame estelar tem somente 5,5 milhôes de anos (de acordo com Sky Catalog 2000 e Gotz) com uma formação estelar ainda ativa na nebulosa; isto resulta na presença de muitas estrelas quentes do tipo espectral O6. Estima-se que o aglomerado tenha uma extensão de 15 anos-luz e a nebulosa tenha uma extensão aproximada de 70 x 55 anos-luz. [1]

Os destaques desta nebulosa não param por aí. Ainda temos nesta nebulosa os famosos "Pilares da Criação", estruturas com formato similar à estalagmites localizadas no centro da imagem. Essa região já foi alvo do telescópio espacial Hubble em 1995 criando imagens que encantaram o mundo. As colunas dos pilares são compostas de hidrogênio e poeira, que agem como incubadoras de novas estrelas. Dentro das colunas e na superfície, os astrônomos encontraram nós, ou glóbulos, de gás mais denso, chamados EGG (Evaporating Gaseous Globules - Glóbulos Gasosos em Evaporação). Várias estrelas estão sendo formadas no interior destes glóbulos. [2]

Fonte:

[1] messier.seds.org/m/m016.html

[2] wikipedia

Registrei esta imagem em duas sessões: 24 de junho de 2017 em Munhoz - Minas Gerais - Brasil e outra em 27 de julho de 2017 na zona rural de Campo Belo - Minas Gerais - Brasil.

Dados técnicos:

Gain: 0, Offset: 10, temperatura da câmera: -15°C, exposição total de 7h08m, darks, flats e bias aplicados.

O canal de luminância foi composto pela junção da banda H-Alpha e da luminância extraída do canal RGB.

Filtros

H-Alpha: 54 x 300s / Bin 1x1

R: 22 x 150s / Bin 2x2

G: 21 x 150s / Bin 2x2

B: 20 x 150s / Bin 2x2

Equipamento:

- Montagem Equatorial Orion Atlas EQ-G

- Telescópio Ritchey-Chretien 8" F8 Fibra de Carbono GSO

- Câmera ZWO ASI1600MM Cooled

- Redutor focal Astro-Physics 67 CCDT

- Auto guiagem com câmera ZWO ASI120MM em OAG

- Roda de Filtros ZWO 5 posições

- Filtro Optolong 1,25" H-Alpha 7nm

- Filtro Optolong 1,25" R

- Filtro Optolong 1,25" G

- Filtro Optolong 1,25" B

Softwares

- Captura: APT - Astro Photography Tool 3.50

- Processamento: PixInsight 1.8 e Adobe Photoshop CS5

- Guiagem: PHD2

- Controle: EQMOD e SkyTechX

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Name: Eagle Nebula, NGC 6611, Messier 16

Type: Open cluster with nebulosity

Distance: near 7,000 light-years

Apparent magnitude: 6.4

Constellation: Serpens Cauda [1]

The Eagle Nebula Messier 16 (M16) is a conspicuous region of active star formation, situated in Serpens Cauda. The starforming nebula, a giant cloud of interstellar gas and dust, has already created a considerable cluster of young stars. The cluster is also referred to as NGC 6611, the nebula as IC 4703. The discoverer, Philippe Loys de Chéseaux, describes only the cluster when recording his 1745-1746 discovery. Charles Messier, on his independent rediscovery of June 3, 1764, mentions that these stars appeared "enmeshed in a faint glow", probably suggestions of the nebula.[1]

This stellar swarm is only about 5.5 million years old (according to the Sky Catalog 2000 and Götz) with star formation still active in the Eagle Nebula; this results in the presence of very hot young stars of spectral type O6. The cluster has a linear extension of about 15 light years. The nebula extends much farther out, to a diameter of over 30', corresponding to a linear size of about 70x55 light years. [1]

The highlights of this nebula don't stop here. We found in this nebula the famous "Pillars of Creation", structures similar to stalagmites situated in center of image. This region was target of Hubble Space Telescope in 1995 that made incredible images. The columns of pillars are composed of hidrogen and dust, that act like incubator of new stars. Inside of columns and surface of this structures, the astronomers found nodes, or globules, of dense gas, known as EGG (Evaporating Gaseous Globules). Various stars are being formed inside this globules.[2]

Sources:

[1] messier.seds.org/m/m016.html

[2] wikipedia

I registered this picture in two sessions: June, 24th 2017 in Munhoz - Minas Gerais - Brazil and other session at July, 27rd 2017 in rural zone of Campo Belo - Minas Gerais - Brazil.

Technical data:

Gain: 0, Offset: 10, camera's temperature: -15°C, 7h08m of exposition, darks, flats and bias applied.

The luminance channel was composed by H-Alpha narrowband and luminance extracted from RGB channel.

Filters

H-Alpha: 54 x 300s / Bin 1x1

R: 22 x 150s / Bin 2x2

G: 21 x 150s / Bin 2x2

B: 20 x 150s / Bin 2x2

Equipments:

- Equatorial Mount Orion Atlas EQ-G

- GSO Ritchey-Chretien Telescope 8" F8

- ZWO ASI1600MM Cooled

- Focal reducer Astro-Physics 67 CCDT

- Guided with ASI120MM ZWO using OAG

- ZWO EFWmini (5 x 1.25")

- Filter Optolong 1.25" H-Alpha 7nm

- Filter Optolong 1.25" R

- Filter Optolong 1.25" G

- Filter Optolong 1.25" B

Softwares

- Capture: APT - Astro Photography Tool 3.50

- Processing: PixInsight 1.8 and Adobe Photoshop CS5

- Guiding: PHD2

- Control: EQMOD and SkyTechX

NGC 672 (a sinistra) e IC 1727 (a destra) sono due galassie interagenti nella costellazione del Triangolo: l’interazione è visibile nella banda radio dell’idrogeno neutro dove si osserva una coda mareale di materia tra le due galassie.

NGC 672 ha una massa più grande di IC1727 e questo spiega la maggiore distorsione osservabile otticamente in quest’ultima galassia.

NGC 672 dista 26.1 milioni di anni luce e la sua distanza da IC1727 è di solo 85000 anni luce.

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NGC 672 (on the left) and IC 1727 (on the right) are two interacting galaxies in Triangulum constellation: the interaction is visible in the neutral hydrogen radio band where a tidal bridge is observed between the galaxies.

NGC 672 appears to be the more massive of the two, and hence IC 1727 shows more distortion from the interaction. NGC 672 is 26.1 million light years away and its distance from IC 1727 is only 85000 light years.

Technical data

Image taken on September 16/October 12/October 16 2020 from Promiod (Aosta Valley, Italy)

RC12 GSO Truss (diameter 304mm, focal lenght 2432mm)

Mount GM2000 HPSII

CCD Moravian G3-16200 with filters Astrodon Tru-Balance Gen2 E-Serie LRGB

Exposures and sensor temperature:

L 30x600” bin2 -20C

R 23x300" bin2 -25C

G 24x300" bin2 -25C

B 24x300" bin2 -25C

Total exposure time 10.9h

Guide with OAG Moravian and Moravian camera G1-0301

Sw used: Voyager, Pixinsight 1.8, Photoshop CS5

www.robertomarinoni.com