1h34 de pose en pleine PL

app.astrobin.com/i/hnk5br?r=0

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• Sky-Watcher Quattro 250P

• Sky-Watcher EQ8-R Pro

• ZWO ASI294MM-Pro

• Astronomik L: 124x600s bin1 gain 0

• ZWO Hα 7nm: 33x900s bin1 gain 200

• Astronomik RGB: 86x600s bin2 gain 125

(total integration 43h)

• ZWO OAG & ASI290Mini guide cam

• TS GPU coma corrector

• ZWO EFW, ZWO EAF & Pegasus Astro Ultimate Powerbox 2

Trevinca, Valding, Spain

Bortle 3, SQM 21.8

processed with Pixinsight

Taken on Fraser Island in Australia, far from civilisation and light pollution.

olgeir.zenfolio.com/

Tricolor aka Hubble palette made of:

Red = Sulphur II

Green = Hydrogen alpha

Blue = Oxygen III

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• Sky-Watcher BK P2001 with TS Optics 2" Dual Speed Focuser

• EQ6-R Pro

• ZWO ASI1600MM-Pro

• Baader Hα 7nm: 15x600s

• Baader OIII 8.5nm: 20x600s

• Baader SII 8nm: 20x600s

(total integration 9.1h)

• -20° sensor temp., Gain 139 (UG)

• Baader MPCC Mark III coma corrector

• 60x240 guide scope, ZWO ASI290Mini guide cam

Captured with ZWO EFW, ZWO EAF, ZWO ASIAIR, Pegasus Astro Powerbox

Saint Petersburg, Russia. Red light pollution zone, balcony

Here is the Pinwheel Galaxy in Ursa Major. A gorgeous face-on spiral galaxy.

I recently captured this image from the backyard using a color camera and small telescope (Video: youtu.be/o8Q_GWXL9Gw)

3 Hours, 30-Minutes Total Exposure

Sky-Watcher Esprit 100 APO

Sky-Watcher EQ6-R Pro

ZWO ASI533MC Pro

Optolong L-Pro Filter

Acquistion in APT

Guiding with PHD2

Processing in DeepSkyStacker and Adobe Photoshop.

Thanks for looking. Clear skies!!

Equipment: EdgeHD 11, ASI6200MM, ZWO 5EFW with LRGB, OAG Guided with ASI174MM Mini

Stretched in Processed in PixInsight: Integration, DBE, RGB Combination, Color Calib, LRGB Lum Merge, MLT to Sharpen, NoiseXTerminator, Curves

olgeir.zenfolio.com/

www.astrobin.com/pdoi8p/

This dark nebula belongs to the head of the Lion Nebula or Sh2-132.

Amazing fight on this complex area where a large number of dark nebulas, emission gases and eruptive stars give to us this nice show.

I need to explore more in detail this region on my next captures!!!

On this picture I integrate more than 75 hours in narrow band and rgb data to resolve all possible details and structures.

Processed on natural colors using a palette ha+Sii / Oiii / Oiii and RGB stars.

Technical card

Imaging telescopes or lenses:Teleskop Service TS Photoline 107mm f/6.5 Super-Apo , Altair Astro RC250-TT 10" RC Truss Tube

Imaging cameras:ZWO ASI183MM-Cool , ZWO ASI1600MM-Cool

Mounts:Skywatcher EQ6R Pro , Mesu 200 Mk2

Guiding telescopes or lenses:Celestron OAG Deluxe , Teleskop Service TSOAG9 Off-Axis Guider

Guiding cameras:ZWO ASI174 Mini , ZWO ASI290 Mini

Focal reducers:Riccardi Reducer/Flattener 0.75x , Telescope-Service TS 2" Flattener

Software:Pleiades Astrophoto PixInsight , Seqence Generator Pro

Filters:Astrodon O-III 36mm - 5nm , Astrodon S-II 36mm - 5nm , Astrodon R Gen.2 E-series 36mm , Astrodon G Gen.2 E-series 36mm , Astrodon B Gen.2 E-series 36mm , Astrodon HA 36mm - 5nm , Astrodon L Gen.2 E-series 36mm

Accessory:ZWO EFW , MoonLite NiteCrawler WR30 , TALON6 R.O.R , MoonLite CSL 2.5" Focuser with High Res Stepper Motor

Dates:Aug. 17, 2020 , Aug. 18, 2020 , Aug. 21, 2020 , Aug. 22, 2020 , Aug. 23, 2020

Frames:

Astrodon B Gen.2 E-series 36mm: 100x30" (gain: 75.00) -20C bin 1x1

Astrodon G Gen.2 E-series 36mm: 100x30" (gain: 75.00) -15C bin 1x1

Astrodon HA 36mm - 5nm: 230x600" (gain: 200.00) -20C bin 1x1

Astrodon O-III 36mm - 5nm: 115x600" (gain: 183.00) -15C bin 1x1

Astrodon R Gen.2 E-series 36mm: 100x30" (gain: 75.00) -20C bin 1x1

Astrodon S-II 36mm - 5nm: 106x600" (gain: 183.00) -15C bin 1x1

Integration: 77.7 hours

Avg. Moon age: 13.62 days

Avg. Moon phase: 10.56%

Astrometry.net job: 3830779

RA center: 22h 19' 34"

DEC center: +56° 7' 1"

Pixel scale: 1.007 arcsec/pixel

Orientation: -89.180 degrees

Field radius: 0.408 degrees

Resolution: 2328x1760

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Found in the Constellation Serpens.

IC 1871, en la la nebulosa Alma, Casiopea.

Adquisición de datos: Christopher Gomez, Gulf Breeze, Florida, USA.

Procesado: Gerard Tàrtalo Montardit, Societat Astronòmica de Lleida.

Telescopio: TPO RC8"

Cámara fotográfica: QSI 690 WSG-8

Montura: Orion Atlas EQ-G

Reductor de focal: Stellarvue SFFR70APO

Orion SkyGlow 2" Astrophotography Filter

Tomas SHO:

Astrodon SII 3nm: 21x1200" -10ºC bin 1x1

Astrodon Ha 5nm : 18x1200" -10ºC bin 1x1

Astrodon OIII 3nm: 21x1200" -10ºC bin 1x1

Tiempo de integración total: 20 horas

Darks: ~30

Flats: ~30

Bias: ~30

Each Star in this shot, is a Sun that could have Planets orbiting it.

Then there's The Andromeda Galaxy (M31), with another Trillion stars.

Plus another couple of faint galaxies. Trillions more stars.

Are we alone?

A stack of 7, tracked shots, with up to 4 minutes exposure in each, and I encourage you to zoom in as much as you can.

Shot from the beautiful, Elan Valley, Wales, UK.

NGC 5128 is a peculiar galaxy in the southern constellation of Centaurus. I processed this image with publicly available data from the Las Cumbres Observatory. The PI for this observation was Edward Gomez. This image included data collected with B, V and R filters. The data comes from 1 m telescopes at the South African Astronomical Observatory and Siding Spring Observatory in Australia. Individual images acquired with the following filters were stacked to generate the final image.

Red : 2.08 hours of R

Green: 1.83 hours of V

Blue : 1.82 hours of B

NGC 5128 is also the source of a very strong radio source called Centaurus A. The prevailing hypothesis for the strange shape of the galaxy is a merger between a giant elliptical galaxy and a spiral galaxy. This merger is also believed to be the reason for the strong radio emission. More in this excellent review paper here: arxiv.org/abs/astro-ph/9811051

Publishing credits:

LCO website as part of their image gallery: lco.global/images/space/

Barnard 150 is a dark molecular cloud of dust in the Cepheus constellation. This molecular cloud is part of our Milky Way galaxy and it lies at about 1200 light years away. Cloud location on the Milky Way's plane, makes it stand out on a background completely filled with colorful stars.

The distinctive, Seahorse like shape of this molecular cloud can be more easily observed by rotating the image by 90 degrees. This nebula is about 1 degree in size or the width of two Moons.

Image captured over 4 nights; 2021-05-09, 10, 11 & 2021-10-11

6 hours and 41 min total integration

L subs 60 * 60sec = 1 hour

R subs 37 * 180sec = 1 hour 50 min

G subs 44 * 180sec = 2 hour 12 min

B subs 33 * 180sec = 1 hour 39 min

Imaging Equipment:

SharpStar 140PH Triplet 910mm focal length

Mesu 200 MKII,

ZWOASI2600MM Pro camera

LRGB filters

Las 3 imágenes son propias

www.astrobin.com/li8tos/

------------------------------------------------------

• Sky-Watcher Quattro 250P

• Sky-Watcher EQ8-R Pro

• ZWO ASI294MM-Pro

• Astronomik L: 219x300s bin1 gain 0

• Astronomik RGB: 81x300s bin2 gain 125

(total integration 25h)

• ZWO OAG & ASI290Mini guide cam

• TS GPU coma corrector

• ZWO EFW, ZWO EAF & Pegasus Astro Ultimate Powerbox 2

Trevinca, Valding, Spain

Bortle 3, SQM 21.8

processed with Pixinsight

Non fotografavo dal 2013 questa bella galassia a spirale, chiamata anche galassia del Triangolo (M33, NGC598) it.wikipedia.org/wiki/Galassia_del_Triangolo , ricca di nebulose . Adesso con l nuovo setup era giusto riprovarci.

L'occasione propizia è stato lo Star Party del Gruppo Astrofili Catanesi astrofilicatanesi.net/ (02-04/08/2024)

La prima notte con un cielo discreto, purtroppo ho acquisito (non so cosa sia successo) senza raffreddare il sensore della ASI533MC-pro (circa 15°C). Speravo nella seconda notte ma a causa delle nuvole ho acquisito solo 17 frame.

Ciò malgrado l'immagine combinata era abbastanza buona ma scarsa di informazioni H-alfa. Ho deciso allora di riprendere da casa un pò di segnale in banda stretta per aggiungerlo all'immagine RGB.

_________________

I hadn't photographed this beautiful spiral galaxy, also called the Triangulum Galaxy (M33, NGC598) en.wikipedia.org/wiki/Triangulum_Galaxy, rich in nebulae since 2013. Now with the new setup it was right to try again.

The right occasion was the Star Party of the Gruppo Astrofili Catanesi astrofilicatanesi.net/ (02-04/08/2024)

The first night with a decent sky, unfortunately I acquired (I don't know what happened) without cooling the sensor of the ASI533MC-pro (about 15°C). I was hoping for the second night but due to the clouds I only acquired 17 frames.

Nevertheless, the combined image was quite good but lacking in H-alpha information. I then decided to take some narrow band signal from home to add it to the RGB image.

_______

Optic: Refractor APO Scopos TL805 80mm/f7 + WO 0.8X

Camera: ZWO ASI533MC-Pro

Mount: Sky Watcher HEQ5 Synscan

Narrowband filter Optolong L-eNhance 2"

Seeing: 3 (scala Antoniadi inversa)

RGB 15x300s 121gain / 12 dark /21 flat / 21 darkflat /0 bias sensor +15°C

RGB 17x300s 121gain / 12 dark /21 flat / 21 darkflat /0 bias sensor -5°C

Ha+OIII 9x600s 121gain / 15 dark /21 flat / 21 darkflat /0 bias sensor -5°C

Date: 3-4-25/08/2024

Integration: 4h 10min

Temperature: 21°C (media)

Location: Maniace (CT) , monti Nebrodi (Sicily-Italy) 890m asl

acquisition: NINA, PHDGuiding;

Processing: DSS, GraXpert, SIRIL, PS.

Continua la mia esperienza in Banda Stretta (BS) aquisendo dalla città in cui vivo e dove molti anni fà ho autocostruito un piccolo " osservatorio privato".

Questa volta la mia ettenzione si è rivolta alla grande nebulosa emissione "Sh2-171" indicata anche con la sigla "Ced 214".

Le 3 sessioni sono state con un cielo quasi sempre trasparente e questo mi ha permesso di avere un discreto segnale.

Non ho ancora molta esperienza con i nuovi software di elaborazione post-produzione, ma mi ritengo abbastanza soddisfatto del risultato e della profondità raggiunti.

________

My experience in Narrow Band (NB) continues by acquiring from the city where I live and where many years ago I self-built a small " private observatory".

This time my attention was focused on the large emission nebula "Sh2-171" also indicated with the acronym "Ced 214".

The 3 sessions were with an almost always transparent sky and this allowed me to have a decent signal.

I still don't have much experience with the new post-production processing software, but I am quite satisfied with the result and depth achieved.

(translated by Google)

____

Optic: Rifrattore APO Scopos TL805 80mm/f7 + WO 0.8X

Camera: ZWO ASI533MC-Pro

Mount: Sky Watcher HEQ5 Synscan

Seeing: 3 (scala Antoniadi inversa)

Narrowband filter: Optolong L-eNhance 2"

BS 87x300s 121gain / 12 dark /21 flat / 13 darkflat /100 bias

t° sensor: -5°C

Date: 26-27-29/09/2024

Integration: 7h 15min

Temperature: 18°C (media)

location for : Biancavilla -Catania-(Italy) 515m slm

Acquisition: NINA, PHDGuiding

Processing: DSS, GraXpert, SIRIL, PS.

Sadr-Region, LDN 889, LBN 249, NGC 6910

61 x 180s H-alpha

146 x 180s OIII

388 x 180s SII

26 x 180s red

31 x 180s green

28 x 180s blue

total 34 hour

Equipment:

Epsilon 130D dual rig

QHY268m + CFW3M

TS2600MP (Touptek IMX571) + ZWO EFW

Astronomik DeepSky RGB

Astronomik MaxFR

Pegasus NYX-101

August 2023

Location: french alps, black forest, homelocation near aschaffenburg

IC 447, or Dreyer's Nebula, is a reflection nebula in Monoceros. Surrounded by lots of different reflection bits, it sits next to a large hydrogen cloud.

- Location: Remote Observatory (Bortle 1, SQM 21.99) near Fort Davis, TX

- Total Exposure Time: 19.75 Hours

Equipment:

- Scope: Takahashi FSQ106EDX4

- Imaging Camera: QHY 268M

- Filters: Chroma LRGB (36mm)

- Mount: Astro Physics Mach1GTO

- Guidescope: SVBony 50mm Guidescope

- Guide camera: ASI 120mm mini

- Focuser: Moonlite Nitecrawler WR35

- Accessories: Pegasus Ultimate Powerbox v2, QHY Polemaster, Optec Alnitak Flip Flat

------------------------------------------------------------

Software:

- N.I.N.A for image acquisition, platesolving, and framing

- PHD2 for guiding

- PixInsight for processing

-------------------------------------------------------------

Acquisition:

- L: 193 x 3m

- R: 71 x 3m

- G: 66 x 3m

- B: 65 x 3m

- All images at Gain 56, Offset 25 (Readout mode 1) and -5C sensor temperature

- 20 flats per filter

- Master Dark, Flat & Bias from Library

- Nights: 2/11, 2/17, 2/24, 3/11, 3/14, 3/15, 3/23, 3/24, 3/26, 3/27/23

-------------------------------------------------------------

Processing:

- WBPP for Calibration

- Blink to remove bad subs

- ImageIntegration for stacking

RGB Processing (apply to each master pre-combination):

- DynamicCrop

- MureDenoise

- DynamicBackgroundExtraction

- StarAlign G and B to R

- ChannelCombination to combine into linear RGB

- DynamicBackgroundExtraction

- StarAlign to luminance

- StarXterminator to make starless and save RGB stars

- HistogramTransformation for stretch

- NoiseXterminator for noise reduction

- RangeMask + HDRMultiscaleTransform to bring back bright reflection

Luminance Processing:

- DynamicCrop

- MureDenoise

- DynamicBackgroundExtraction

- BlurXterminator for sharpening

- StarXterminator to make starless and save luminance stars

- GeneralizedHyperbolicStretch for intial stretch

- HistogramTransformation for additional stretch

- NoiseXterminator with luminance mask for noise reduction

- RangeMask + CurvesTransformation for contrast adjustment

- RangeMask + HDRMultiscaleTransform to bring back bright reflection

Combine LRGB:

- LRGBCombination to combine Lum and RGB with saturation of 0.4

- MultiscaleMedianTransform for chrominance NR

- ColorSaturation to saturate blue and red

- Various CurvesTransformations for contrast and hue using colormasks

- Masked NoiseXterminator for noise reduction

Add Stars to LRGB and further processing:

- HistogramTransformation to stretch RGB and Lum stars the same

- LRGBCombination to combine Lum and RGB stars

- CurvesTransformation to saturate stars

- PixelMath to combine stars and starless nebula

- Masked NoiseXterminator for noise reduction 2x

- Apply lum stars as mask and MorphologicalTransformation for slight star reduction

The image I posted yesterday of the comet Lovejoy and Polaris was taken on May 24,2015. Four nights later I went to Henry Coe State Park and took another shot at the comet, which had grown both a tail and an anti-tail, right at the time it was as "closer" to Polaris as it will get. Hope you like it!

LBN782 (from Lynd's catalog of bright nebulae) is the blue reflection nebula on the left.

Captured with a Takahashi FSQ-106ED scope and QSI-683 camera at SRO in California. 21.5 hours of LRGB data in 900 second subs,

The FOV contains several Barnard dark nebulae, some small/distant galaxies (IC359 is the larger E/S0 galaxy at the bottom right.) There's also a brown dwarf if you know where to look - 2MASS J04141188+2811535.

IC 434, the "HorseHead" Nebula is an emission nebula in the constellation Orion and is 3.5 light years away. I setup my TS Optics 90mm CF APO f6 refractor with a Optolong L-Xtreme filter and shot this in a full moon! The filter did a great job cutting the moon light and I was able to get this beautiful narrowband image.

TS Optics 90mm CF APO f6 Refractor

TS Optics 50mm Guide Scope

ZWO ASI 2600 MC Pro

ZWO ASI 120mm Guide Camera

Skywatcher EQ6R Pro mount

Optolong L-eXtreme filter

Bortle 5 skies

ABELL 2151

3zObservatory deep field

Con il socio Giorgio Mazzacurati abbiamo deciso di omaggiare i 30 anni dell'Hubble space telescope scimmiottando una delle più belle foto che ha fatto il telescopio spaziale.

L'Ammasso di Ercole (Abell 2151) è un ammasso di galassie situato nell'omonima costellazione alla distanza di oltre un miliardo di anni luce dalla Terra.

È inserito nel Catalogo Abell redatto nel 1958 ed ha una classe di ricchezza 2, in quanto formato da 129 galassie. È un ammasso di tipo III secondo la classificazione di Bautz-Morgan in quanto contiene anche numerose galassie spirali. Inoltre sono presenti diverse galassie interagenti. (fonte wiki)

Composizione LRGB circa 6h ore di integrazione a bin2

Strumentazione:

RC12GSO su EQ8

CCD G24000-Astrodon Filter LRGB - OA Starlight

Elaborazione tramite Pixinsight/Photoshop

Autori: Paolo Zampolini e Giorgio Mazzacurati @3zObservatory

This object sits up in the constellation Cepheus. The squid shaped nebula is extremely faint and was only recently discovered in 2011 by an amateur astronomer.

Shot in New Orleans, LA in Bortle 8 skies.

FSQ-106

ASI 2600MM

CEM70

SHO: 20/20/68x15m

Total Integration = 24h

PI: SH - BXT, DBE, NXT

O - BXT, SXT, HT - Export to PS - Curves, Level, ColorEfex, Local Boost

The Christmas Tree Cluster is a young open cluster located in the constellation of Monoceros. It is part of the NGC 2264 region, along with the Cone Nebula and the Fox Fur Nebula and top left Hubble's Variable Nebula NGC 2261.

Scope: William Optics GT 81

Camera: ZWO ASI2600MC Pro

Mount: Celestron CGX

Filters: Optolong L-eNhance

Integration: 14x 1200s , 56x 300s

Total Integration: 9h 20m

The Supernova remnant CTB1 (Abell 85) swoops through Cassiopeia.

See on Fluidr

To see more of my work and to buy prints visit www.jklovelacephotography.com/pages/space

Happy Halloween Flickr Friends!

LDN1235 The Dark Shark Nebula

LDN1235 is a part of a large molecular cloud in the constellation Cepheus. Dark nebula are opaque clouds of dust and gas in space that block the light of stars behind them. Within LDN1235 there are two blue reflection nebulae vdB149 and vdB150. These can be seen just above and just below the Shark head.

Image captured over 3 nights; 2021-05-09, 10, 11:

7 hours and 23 min total integration

L subs 114 * 60sec = 1 hour 54 min

R subs 41 * 180sec = 2 hour 3 min

G subs 32 * 180sec = 1 hour 36 min

B subs 37 * 180sec = 1 hour 50 min

Imaging Equipment:

SharpStar 94EDPH 517mm focal length,

Rainbow Astro RST-135,

ZWOASI1600MM Pro camera

LRGB filters

✨ Première photo du ciel profond avec le télescope !

.

La nébuleuse de l’Amérique du Nord, alias NGC7000, en version très serrée et même coupée car elle ne rentre pas entièrement dans le cadre. Découverte par William Herschel en 1786, NGC 7000 est située dans la constellation du Cygne. Elle doit son nom à sa forme qui rappelle le continent nord américain. C'est une nébuleuse en émission. Elle forme avec la nébuleuse du Pélican (IC 5070), un vaste nuage d'hydrogène ionisé (région HII) séparé par une nébuleuse obscure (golfe du Mexique) composées de poussières interstellaires et d'hydrogène moléculaire qui absorbent la lumière des étoiles située en arrière-plan. D’ailleurs arrivez-vous à voir la petite nébuleuse du Pélican ? Indice dans la dernière slide 😉.

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😖 Encore une fois, c’est très loin d’être parfait. J’ai encore des petits problèmes sur la collimation mais c’est sur le point d’être résolu. Ça manque cruellement de temps de pose car je passe la plupart de mes soirées à faire des tests sur différents objets célestes afin de comprendre chaque subtilité. Le bruit qui en découle est donc extrêmement présent. Les nuages n’ont pas aidé non plus car j’ai dû jeter la moitié de mes photos. Enfin, le télescope n’a encore pas bougé de ma terrasse donc je suis sous un ciel ultra pollué par la ville de Douai.

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EXIF :

- @canonfrance EOS 6Da

- Newton 250/1000 Carbon Homemade

- Correcteur GPU 4 lentilles

- @skywatcheraustralia AZ-EQ6 GT

- 30*90s ISO 640 f/4 (45mn d’intégration)

- Bortle 6/7

- Traitement PI & PS

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Bon ciel !!

This emission nebula located in the Large Magellanic Cloud is known as the cosmic reef.

RGBHO Total Integration = 18h

Pixinsight:

HO: WBPP / BXT / DBE / SXT / HT / HDR

R/B: WBPP / BXT / DBE / SXT / HT / MAX(H+R)

RGB: RH, G, BO

Stars: RGB_stars / LRGB (H_stars) / Rescreen

Photoshop:

ColorEfex / Starshrink / Levels / Curves / Sat

------------------------------------------------------

• Sky-Watcher Quattro 250P

• EQ6-R Pro

• ZWO ASI1600MM-Pro

• ZWO L: 205x90s

• ZWO R, G, B: 75x90s bin2

(total integration 7h)

• -10° sensor temp., Gain 0 (HDR)

• TS GPU coma corrector

• 60x240 guide scope, ZWO ASI290Mini guide cam

Captured with ZWO EFW, ZWO EAF, ZWO ASIAIR Pro

Saint Petersburg, Russia, home balcony.

Bortle 8-9 with SQM ~17.6

Captured in five nights in oct-nov 2021,

processed with DSS & Pixinsight

The Heart nebula (IC1805, Sh2-190) is located approx. 7500 light years away in the constellation of Cassiopeia. This is an emission nebula of glowing gas and dark dust lanes.

This is the first single pane image I have taken with the new QSI683 camera. I use 1.25" filters with it, the Kodak 8300 chip is really enjoyable to use. A short exposure time for me, this was all about showing what this Kodak 8300 sensor is capable of.

Details:

M: Avalon LInear Fast reverse

T: Takahashi FSQ85 0.73x

C: QSI683 with 1.25" Ha filters

9x1800s (4.5 hours in total)

.

The Veil Nebula is a cloud of heated and ionized gas and dust in the constellation Cygnus.

It constitutes the visible portions of the Cygnus Loop, a supernova remnant, many portions of which have acquired their own individual names and catalogue identifiers. The source supernova was a star 20 times more massive than the Sun which exploded between 10,000 and 20,000 years ago. At the time of the explosion, the supernova would have appeared brighter than Venus in the sky, and visible in the daytime. The remnants have since expanded to cover an area of the sky roughly 3 degrees in diameter (about 6 times the diameter, and 36 times the area, of the full Moon). While previous distance estimates have ranged from 1200 to 5800 light-years, a recent determination of 2400 light-years is based on direct astrometric measurements. (The distance estimates affect also the estimates of size and age.)

Mount - EQ6R Pro

Scope - William Optics GT81 with 0.8 Reducer

Camera - ZWO ASI 2600MC Pro cooled to -10c

Filter - Optolong L Ultimate

Guiding - ZWO 30 mm Mini Scope and & 120MM Mono Camera

Computer - ZWO ASIAIR Pro

Processing Software - Pixingsight

112 x 600 Second Lights (total integration 18.6 hours over 4 nights)

Calibration frames - 50 darks, 50 flats

www.astrobin.com/363557/

Sh 2-108 is sometimes called the Gamma Cygni nebula because of the foreground appearance of the F8Iab supergiant (also called Sadr). In fact this nebula lies far beyond Gamma Cygni in the depths of the Cygnus X complex of star formation regions.

Technical card

Imaging telescope or lens:Teleskop Service TS Photoline 107mm f/6.5 Super-Apo

Imaging camera:ZWO ASI1600MM-Cool

Mount:Astro-Physics Mach-1 GTO CP4

Guiding telescope or lens:Celestron OAG Deluxe

Guiding camera:QHYCCD QHY5III174

Focal reducer:Riccardi Reducer/Flattener 0.75x

Software:Main Sequence Software Seqence Generator Pro, Astro-Physics AAPC, Pleiades Astrophoto PixInsight

Filters:Astrodon HA 36mm - 5nm, Astrodon S-II 36mm - 5nm, Astrodon O-III 36mm - 5nm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm

Accessories:ZWO EFW, MoonLite NiteCrawler WR30

Resolution: 3520x4656

Dates: Aug. 5, 2018, Aug. 7, 2018

Frames:

Astrodon B Gen.2 E-series 36mm: 12x5" (gain: 200.00) -20C bin 1x1

Astrodon G Gen.2 E-series 36mm: 12x5" (gain: 200.00) -20C bin 1x1

Astrodon HA 36mm - 5nm: 20x300" (gain: 200.00) -20C bin 1x1

Astrodon O-III 36mm - 5nm: 11x300" (gain: 200.00) -20C bin 1x1

Astrodon R Gen.2 E-series 36mm: 12x5" (gain: 200.00) -20C bin 1x1

Astrodon S-II 36mm - 5nm: 10x300" (gain: 200.00) -20C bin 1x1

Integration: 3.5 hours

Avg. Moon age: 23.96 days

Avg. Moon phase: 31.65%

Astrometry.net job: 2221080

RA center: 306.812 degrees

DEC center: 40.076 degrees

Pixel scale: 1.472 arcsec/pixel

Orientation: 314.063 degrees

Field radius: 1.193 degrees

Locations: Berga Resort, Berga, Barcelona, Spain

Data source: Backyard

www.astrobin.com/a7e5ua/

------------------------------------------------------

• Sky-Watcher Quattro 250P

• Sky-Watcher EQ8-R Pro

• ZWO ASI294MM-Pro

• Astronomik L: 195x300s bin1 gain 0

• Astronomik RGB: 65x300s bin2 gain 125

(total integration 21.6h)

• ZWO OAG & ASI290Mini guide cam

• TS GPU coma corrector

• ZWO EFW, ZWO EAF & Pegasus Astro Ultimate Powerbox 2

Trevinca, Valding, Spain

Bortle 3, SQM 21.8

processed with Pixinsight

Believe In Forever

Interplanetary Travel

My last days on this planet. I am ending my search for life forms on this planet. Unfortunately, I couldn't find any trace of life. This is an abandoned planet. Just like the other planets I've visited. After I've done my final research, I'll have to prepare my spaceship for a new voyage. I'll post a few more photos from this planet. While floating in space, maybe we may have a communication problem for a while. When I set foot on a new planet, I'm sure I'll be able to reconnect. I will give you new information with the photo I will publish next. Some exciting facts about the planet I'm going to travel to. Stay tuned.

Youtube: "4K" Road Trip in Tunisia - Visiting Tunisia "2019"

Camera: Canon EOS Kiss X7i

Photograph by Yusuf Alioglu

Location: Outer space (space)

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www.astrobin.com/411184/

The Pinwheel Galaxy (Messier 101 or NGC 5457) is a spiral galaxy distanced 21 million light-years away from Earth

M101 is a large galaxy, with a diameter of 170,000 light-years. By comparison, the Milky Way has a diameter of 258,000 light years. It has around a trillion stars, twice the number in the Milky Way.

It has a disk mass on the order of 100 billion solar masses, along with a small central bulge of about 3 billion solar masses.

(desc. credits: Wikipedia)

Technical card

Imaging telescope or lens:Altair Astro RC250-TT 10" RC Truss Tube

Imaging camera:ZWO ASI1600MM-Cool

Mount:Astro-Physics Mach-1 GTO CP4

Guiding telescope or lens:Celestron OAG Deluxe

Guiding camera:QHYCCD QHY5III174

Focal reducer:Riccardi Reducer/Flattener 0.75x

Software:Main Sequence Software Seqence Generator Pro, Astro-Physics AAPC, Pleiades Astrophoto PixInsight

Filters:Astrodon L Gen.2 E-series 36mm, Astrodon HA 36mm - 5nm, Astrodon B Gen.2 E-series 36mm, Astrodon G Gen.2 E-series 36mm, Astrodon R Gen.2 E-series 36mm

Accessories:ZWO EFW, MoonLite NiteCrawler WR30

Resolution: 2328x1760

Dates:June 4, 2019, June 7, 2019, June 8, 2019, June 18, 2019

Frames:

Astrodon B Gen.2 E-series 36mm: 36x180" (gain: 75.00) -20C bin 1x1

Astrodon G Gen.2 E-series 36mm: 38x180" (gain: 75.00) -20C bin 1x1

Astrodon HA 36mm - 5nm: 12x600" (gain: 200.00) -20C bin 1x1

Astrodon L Gen.2 E-series 36mm: 175x180" (gain: 75.00) -20C bin 1x1

Astrodon R Gen.2 E-series 36mm: 34x180" (gain: 75.00) -20C bin 1x1

Integration: 16.1 hours

Avg. Moon age: 6.73 days

Avg. Moon phase: 37.75%

Astrometry.net job: 2754493

RA center: 210.800 degrees

DEC center: 54.350 degrees

Pixel scale: 1.006 arcsec/pixel

Orientation: 269.885 degrees

Field radius: 0.408 degrees

Locations: AAS Montsec, Àger, Lleida, Spain

Data source: Own remote observatory

Remote source: Non-commercial independent facility

Here is a wide-field view of the star forming region named the Lagoon Nebula (Messier 8, M8) in the constellation Sagittarius. It encompasses the open cluster NGC 6530 (left of center) and the image also captures the globular cluster NGC 6544 in the lower left. From www.messier.seds.org/m/m008.html "One of the remarkable features of the Lagoon Nebula is the presence of dark nebulae known as 'globules' (Burnham) which are collapsing protostellar clouds with diameters of about 10,000 AU (Astronomical Units).

Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 3200, 15 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: October 1, 2018. Location: The Dark Side Observatory, Weatherly, PA, USA.

A deep field attempt at capturing Markarian's Chain and surrounding Ha gas.

More than 92 hours of exposure in Ha, Lum and RGB did not reveal as much data as I expected but very happy with the deep field view of all the background galaxies in this fascinating group.

Imaged over three months in April, May and June 2025 at Los Coloraos, Gorafe, Spain. Unfortunately the weather was not kind and many of the frames were discarded due to clouds.

Markarian's Chain is a stunning string of galaxies located within the larger Virgo Cluster. From our perspective on Earth, these galaxies appear to form a gently curving line across the night sky, creating a beautiful cosmic alignment. It was named after Armenian astrophysicist Benjamin Markarian, who in the 1960s discovered their shared motion through space.

This "chain" is not just a visual coincidence; many of the galaxies are gravitationally interacting, influencing each other's shapes and movements. Notable members include the famous Messier galaxies M84 and M86, along with the "Eyes Galaxies" (NGC 4435 and NGC 4438), which show clear signs of a past close encounter.

Markarian's Chain offers a fascinating glimpse into galaxy evolution and interactions within a dense cluster environment. It's a popular target for amateur astronomers, showcasing a variety of galaxy types, from elliptical to spiral, all bound together in a grand cosmic dance.

High resolution download and more information, visit AstroBin:

app.astrobin.com/i/ixzhwu

my aim was to get in a photo the whole of this large nebula. this was taken with the Nikon 300mm F4 D lens. the first was ED80 and Full frame next was ED80 zwoasi071mc. this is the only photo to include the whole nebula in detail.

ZWOASI071MC -10 102 shots

600 sec rotated 7 Degrees

Nikon 300 mm f4 D Lens

Skywatcher NEQ 6 Pro Hypertuned

Guided PHD2, SGP

Pixinsight, Ps Lr.

Also know as The Seven Sisters, Pleiades is an an asterism and an open star cluster approximately 444 light years from Earth. The cluster, located the constellation Taurus, is dominated by hot blue and luminous stars that formed within the last 100 million years.

An asterism is a pattern or group of stars that can be seen in the night sky. Asterisms range from simple shapes of just a few stars to more complex collections of many stars. The larger brighter asterisms are useful for people who are familiarizing themselves with the night sky. For example, the asterism known as the Big Dipper comprises the seven brightest stars in the constellation Ursa Major.

Image captured from Bortle 1 skies in Grasslands National Park, SK

2020-08-22

This is an RGB composition consisting of:

Red subs 24 * 120 sec = 48 minutes

Green subs 24 * 120 sec = 48 minutes

Blue subs 45 * 120 sec = 90 minutes

Total integration: 3hr 6min

Equipment details:

ZWOASI 1600MM Pro camera, Celestron AVX mount, Orion ED80T CF Triplet Apochromatic Refractor Telescope.

www.astrobin.com/3wraj1/

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• Sky-Watcher Quattro 250P

• Sky-Watcher EQ8-R Pro

• ZWO ASI294MM-Pro

• ZWO Hα 7nm: 27x600s & 14x900s bin1 gain 200

• ZWO OIII 7nm: 22x600s & 11x900s bin2 gain 200

• ZWO SII 7nm: 22x600s & 11x900s bin2 gain 200

(total integration 20.8h)

• ZWO OAG & ASI290Mini guide cam

• TS GPU coma corrector

• ZWO EFW, ZWO EAF & Pegasus Astro Ultimate Powerbox 2

Trevinca, Valding, Spain

Bortle 3, SQM 21.8

processed with Pixinsight

60x180s - 1000d défiltré sur apo 80f6 - zone urbaine

at least once a day I find myself opening the airlock chamber to float around. I find its quite soothing...or maybe I'm just that damn bored.......the world my never know

Sharpless 171

Samyang 135mm f2.0

ZWO ASI183mmPro

ZWO EFW

Astrodon LRGB

Astrodon h-alpha

Celestron AVX

total exposure time: 12 Std.

116x300s h-alpha

30x120s red

24x120s green

35x120s blue

Pixinsight/Affinity Photo

One of the closest globular cluster to Earth, NGC 6397, sits in the constellation Ara. Due to the cluster distance from Earth, it has been heavily studied and has been used to estimate the age of our galaxy and the smallest star capable of nuclear fusion.

LRGB: 20/20/20/23x5m

Total Integration = 6.9h

PI: BXT, RGB, DBE, LRGB

PS: Levels, SH, Curves, Sat, Starshrink

Data from Telescope.Live CHI-1-CMOS

Here is one of my forgotten images from this past spring, this is Messier 61 (also known as M61 or NGC 4303) an intermediate barred spiral galaxy in the Virgo Cluster of galaxies. It has a magnitude of 10.2 and is roughly 52 million light years away from Earth.

Tech Specs: Meade 12" LX90, Canon 6D, 57 x 60 seconds at ISO 3200 (includes darks, bias and flats), guided. Image Date: April 1, 2019. Location: The Dark Side Observatory, Weatherly, PA, USA.