This Supernova remnant at 1470 Lightyears distance is imaged here in RGB color. The reddish and Blue-Green Emission Nebula shows the colours of H-Alpha and [OIII]. This image is a small section of a Veil Nebula Complex Mosaic i am working on.

Imaged with an Esprit 100 f5.5 refractor/QHY16200 CCD @-20C.

Integration time 10.8 Hr.(43x300 sec Red, 42x300sec Green, 44x300sec Blue)

Imaged on 17,18,19 Apr+ 13,14,15,16 May 2018.

Processed in Astropixelprocessor (Using 2x Drizzle) and Pixinsight.

Knight Observatory, Tomar

en.wikipedia.org/wiki/Veil_Nebula

The Cygnus Loop (a.k.a. Veil Nebula) in the constellation Cygnus, the remnants of a supernova explosion in which a star blew itself apart after exhausting its primary nuclear fuels.

A mosaic of 72 exposures, 300 sec. each in six overlapping fields in the light emitted by hydrogen gas. Explore Scientific ED102 0.1m f/7 refractor, Stellarvue 0.8x reducer/flattener, ZWO ASI294MC camera, 7nm H-alpha filter, iOptron CEM25P mount, ASIAir controller, autoguided. Processed in Astro Pixel Processor and Lightroom.

Imaging the Eastern Veil Nebula with a William Optics GT71 telescope, ASI183MM camera and Antlia 3.5nm HA and 03 filters.

All the gear is finally coming together.

6*600 secs HA

6*600 sec O3

Gain 111

Temp 0 Deg c

Using the Avalon Instruments m-zero mount with a rough polar alignment.

Image acquisition software was NINA.

Guiding PHD2.

Calibrated darks, flats and dark flats in AstroPixel Processor.

This image was a cooperation with Mabula Haverkamp (the maker of astropixelprocessor) who was imaging M106 at the same time as I did. We shared our data to look what we could get out.

This is the result with a resolution of 1.36"/pixel and a limit of a magnitude of around 22.5.

We were quite happy with this result!

Mabula:

Telescope: Takahashi TSA102

Camera: ASI 1600mm-c

B: 33x120s, 97x300s 9,2h

G: 33x120s, 57x300s 5,9h

R: 33x120s, 85x300s 8,2h

Ha: 20x900s 5h

L: 20x120s, 198x300s 17,2h

Andre:

Telescope: TMB92ss

Camera: QSI583ws

L: 130x300s 10,9h

Total: 56,4 h

LDN 673 (upper right quadrant) is one of those dark nebula that I often stopped to admire when surfing astroimages. I was excited to find that I could capture some of its structure at 135mm, and that it would fit nicely in the same 135mm extent with the more frequently imaged Barnard's E. This shot has been planned for awhile but took me awhile to get to.

Acquisition details: Fujifilm X-T10; Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600; tracking with iOptron SkyTracker Pro; 36 x 60 sec; stacking with DeepSkyStacker; editing with Astro Pixel Processor; and curves adjustment/star reduction/editing with GIMP; taken on Sept. 2, 2021 under Bortle 3/4 skies.

100*30 second exposures of the galaxy M33 taken using the IDAS NGS1 Di light pollution filter. Taken from my north facing balcony 'observatory' in Bortle class 7 skies.

Gain= 220

Temp = 0

Acquired in NINA

Guiding PHD2 & dithering

Processed in AstroPixel Processor. Lights only with Bayer drizzle

Avalon M Zero mount

I shot this area with this exact framing last December, but wanted to improve my image. This time my focus was better (I didn't have a Bahtinov mask then), I shot and processed raw (jpeg last time), and I used Astro Pixel Processor tools for processing.

The only thing that wasn't better this time around was my tracking - I only used 50% of my subs, many of which still had slightly trailed stars; I think my balance was off. I would have liked more integration time, but still got a result I'm happy with using only 35 minutes of data.

Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 35 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken on Oct. 6, 2019 under Bortle 3/4 skies.

Jan 7 2020 edit: A very slight re-edit - I monkeyed with the original stack a bit less this time - I like the Horsehead Nebula better in this version.

Here's a little experiment. The dotted line is the International Space Station (ISS) passing through the field of view of my small telescope, very near the interesting little object known as NGC 246, a planetary nebula sometimes called the Skull Nebula in the constellation Cetus.

This wasn't by chance. Watching for these sorts of coincidences, I consulted the trusty sky simulation software SkySafari and noticed that the path of the station would take it in front of a few interesting features in the sky, in addition to this one: M13, the Great Hercules Globular cluster in Hercules, Vega, the brightest star in Lyra, and The Veil Nebula in Cygnus.

Because of the tremendous difference in brightness, I captured the ISS and the nebula field separately. (The ISS is the third brightest object in the night sky, after the Moon and Venus). For the ISS pass, I made a short video with a Nikon Z 6 mirrorless camera and Explore Scientific 102mm f/7 refractor. The image of NGC 246 was made afterward with a ZWO ASI294MC camera and Nikon 80-200mm f/2.8 lens @200mm, 15 6-minute exposures processed in Astro Pixel Processor and Lightroom. The ISS track is in the correct position and scale, composited in Photoshop. In addition, the inset is an enlargement of a few video frames and shows some detail in the ISS.

#astrophotography, #ISS

This is one of those astronomy targets where I cannot quite make out the relationship between the name and the visual appearance of the object, but nevertheless this is SH2-132 or commonly known as The Lion Nebula.

I think the dark lines near the two dark areas may represent the lions mouth like an upside down Y, but who knows. This region is rich in HII, but also very rich in OIII as you can see by the blue in the image. I have produced both the HOO (Hydrogen Alpha+Oxygen III + Oxygen III as RGB) and the Hubble Palette SHO (Sulphur Dioxide II + Hydrogen Alpha + Oxygen III as RGB)

Image Details:

Acquisition Dates: Aug. 9, 2022 · Aug. 20, 2022 · Sept. 17, 2022 · Sept. 19, 2022 · Sept. 25, 2022 · Sept. 28, 2022 · Nov. 4, 2022 · Nov. 17, 2022 · Nov. 19, 2022

Frames:

Baader H-alpha Highspeed(f/2) 50 mm: 101×150″(4h 12′ 30″) (gain: 100.00) -10°C bin 1×1

Baader O-III Highspeed(f/2) 50 mm: 101×150″(4h 12′ 30″) (gain: 100.00) -10°C bin 1×1

Integration: 8h 25′

Darks: 51

Flats: 51

Bias: 201

Equipment:

Imaging Camera: ZWO ASI Cameras ZWO Astronomy CamerasASI6200MM Pro Gain 100 -10C

Imaging Scope: Sharpstar Optics 20032PNT F3.2 Paraboloid Astrograph

Filters: Baader Planetarium Ultra Fast, Ultra Narrow Ha, OIII and SII 50.4mm filters

Filterwheel: ZWO ASI Cameras ZWO Astronomy Cameras 7x EFW

Guide Camera: ZWO ASI Cameras ZWO Astronomy Cameras ASI290MM

Mount: Sky-Watcher EQ8 Pro German Equatorial Mount

Auto Focuser: Primalucelab Sesto Senso2

Environmental conditions: Primalucelab ECCO2

Observatory Control: PrimaLuceLab Eagle Eagle 4 Pro

Roof Control: Talon RoR

Image Acquisition: Main Sequence Software Sequence Generator Pro

Image Calibration and Stacking: Astro Pixel Processor

Image Processing: PixInsight, EZ Processing Suite and StarExterminator

What's in a colour-palette? Back when I first produced this as a regular HOO image in glowing red and purply-blue, I also experimented with a weirder palette in PixInsight, more like OHO but with a few tweaks. Figured the resultant blue-green tonality would suit this time of year much better :)

(Formula, if you really want it:

// R:

OIII^2 + Ha/2

// G:

(Ha+OIII^1.05)/2

// B:

Ha + 0.5*OIII^2

)

Dati: 58 x 300 sec a gain 5 e offset 25 @ -15° c + 117 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: magzero mz5-m su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 11 ° C - Umidità 50%

auch als "Siebengestirn" bekannt. 43 Aufnahmen (12xL, 11xR, 10xG, 10xB, zur Hälfte jeweils 30sec und 60sec). 32 Minuten Gesamtbelichtungszeit. Aufgenommen mit T14 von iTelescope.net in Mayhill, New Mexico. Bearbeitet mit AstroPixelProcessor, Photoshop, AstronomyTools, Lightroom.

Nikon D500, Nikkor 500mm f4 AI-P, Celestron CGEM mount, Astro Pixel Processor

20 6-minute exposures, ZWO ASI 294MC camera, Nikon 200-500mm lens @500mm, iOptron CEM25P mount, ZWO ASIAir controller, dual narrow-band filter (H-alpha + [O III]).

12*300 second subs using the ASI1600MM and Antlia 3.5nm HA filter. Was aiming for some O3 but the sun came up.

Mount was the Avalon Instruments M Zero with PHD2 guiding with only a rough polar alignment. Again, I am just amazed at how well this mount tracks.

NINA was the acquisition software, camera gain = 111 and temp = 0 Deg.

Calibrated in APP, lights, darks, flats and dark flats

Balcony astro with a full moon. Gota love narrow band imaging.

The Elephant's Trunk Nebula or IC 1396 as it is otherwise known, but never with such a wide field of view, at a distance of around 2400 light years from earth and is mainly illuminated by a single bright star. It is thought that this region of space is home to a pretty young star forming region.

This image consists of the same data as the RGB Image but has been processed using my tutorial on creating SHO images from One Shot Colour Cameras which you can read here:

www.stastrophotography.com/creating-a-hubble-palette-imag...

RA: 21h39m00.01s

Dec: 57°29'24.00""

Constellation: Cepheus

Designation: IC1396

Image Details: 128x300S at Gain 100

Darks: 101 Frames

Flats: 101 Frames

Bias: 201 Frames

Acquisition Dates: Nov. 5, 2020 , Nov. 7, 2020 , Nov. 24, 2020 , Dec. 1, 2020 , Dec. 24, 2020 , Dec. 27, 2020

Total Capture time: 10.7 Hours

Equipment Details:

Imaging Camera: ZWO ASI6200MC Pro 62mpx Full Frame OSC

Imaging Scope: SharpStar 15028HNT Hyperboloid Astrograph

Guide Camera: StarlightXpress Lodestar X2

Guide Scope: 365Astronomy 280mm Guide Scope

Mount: Sky-Watcher EQ8 Pro

Focuser: Primalucelab Sesto Senso V2

Filter: Optolong L-eXtreme 2"

Power and USB Control: Pegasus Astro USB Ultimate Hub Pro

Acquisition Software: Main Sequence Software. Sequence Generator Pro 3.2

Calibration and Stacking: Astro Pixel Processor

Processing Software: PixInsight 1.8.8 and EZ Processing Suite for Star Reduction

Dati: 52 x 300 sec a gain 5 e offset 25 a -10° c + 70 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: magzero mz5-m su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 18 ° C - Umidità 68%

This is one I've always wanted... It is definitely the first attempt of many to come!

D5300 (unmodded), 300mm f/2.8 AF-S, SW HEQ5 Pro

90 lights, 45seconds, ISO640, f/5.6

20 Darks

No Flats

Captured with APT, Processed with APP, GIMP, PS Elements

Supernova remnant IC 443, sometimes known as the Jellyfish Nebula in the constellation Gemini in the light of sulfur (red), hydrogen (green), and oxygen (blue).23 hours total exposure. Explore Scientific ED102 102mm f/7 refractor, ZWO ASI294MC camera, dual narrow-band filter (Hα,[O III]), [S II] filter, [O III] filter, iOptron CEM25P mount, Processed in Astro Pixel Processor and Lightroom.

Dati: 102 x 300 sec ( 8,5 ore) gain 5 @ -15° c

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: magzero Mz5m su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 16 ° C - Umidità 60%

At the end of August, I captured this beautiful, faint emission nebula in Cygnus, which is rarely photographed and located between North America and Elephant‘s Trunk Nebula. SH2-124 and its surroundings offer a fascinating variety of structures and dark clouds that I processed in SHO first. Here's an alternative HOO version with a more „realistic“ look. I hope you like the picture in this bicolor version, too!

Skywatcher 200/1000 @750mm f/3.75

Starizona Nexus Coma Corrector & Reducer (0.75)

EQ6-R Pro

ZWO EAF Motorfokus

ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -5°)

Ha & OIII: 324 × 120 secs (10h 48′) with IDAS NBZ Filter

RGB (stars): 50 x 5 secs

N.I.N.A., Guiding: ZWO ASI 120 MM & PHD2

Bortle 5

Astropixelprocessor, Photoshop, Pixinsight

I've seen a number of images lately of the famous comet 67P/Churyumov-Gerasimenko* and thought I'd try my own. Here's the result from last night, clear enough after a modest snowfall during the day though with temps flirting with 0ºF overnight.

I'm a bit baffled by the tail that seems to be offset from the nucleus, which I don't recall seeing very often except in comets that are much closer to the Sun and sporting both ion and dust tails, and some oddball hybrid comet/asteroid objects.

The image is a composite of 100 frames, 90 seconds each; Explore Scientific ED102 102mm f/7 refractor, ZWO ASI294MC camera, UV/IR cutoff filter, iOptron CEM25P mount, Processed in Astro Pixel Processor and Lightroom.

*67P is most famous because it was visited by ESA's fabulous Rosetta spacecraft in 2014 and its Philae lander.

200 * 30 second lights (100 minutes).

William Optics GT102 with ASi 294 MCPro & Televue Powermate *2. Guiding PHD2, no polar alignment.

Calibrated using AstroPiselProcessor

Brisbane city: Bortle class 7.

The Plejades, also known as Messier 45 or the Seven Sisters. The star cluster with hot blue B-type stars formed during the last 100 million years and is passing through dust clouds reflecting and scattering the light.

Telescope: Esprit 100 f5.5, Camera: QHY16200 @-15C.

78x300sec Red, 69x300sec Green, 74x300sec Blue (18.4 hrs)

Imaged on 5,6,7,8,9 &10 october 2018.

Processed in AstroPixelProcessor and Pixinsight.

Knight Observatory, Tomar.

Dati: 40 x 300 sec a gain 5 e offset 25 a -10° c + 70 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: magzero mz5-m su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 25 ° C - Umidità 35%

A complex, dynamic region of star formation in the constellation Auriga with three named objects: IC 417, IC 410, and IC 405, also known as the Flaming Star Nebula in the light of hydrogen, from suburban Bloomington, Indiana.

229 total exposures, 6 min. each (total 23 hours) in several overlapping tiles. Explore Scientific ED102 102mm f/7 refractor, 0.8x reducer/flattener, ZWO ASI2600MM monochrome CMOS camera, 7nm H-alpha filter, iOptron CEM25P mount, ASIAir controller, auto-guided. Processed in Astro Pixel Processor and Lightroom.

#Astrophotography #DeepSky

I added another half hour of imagery to what I already had, so this image consists of 65 minutes of data. After shooting it this latest time, I realized that I hadn't been balancing my tracker correctly when shooting south, so when I image it again this fall, I hope to be more efficient with getting non-star-trailed 60-second subs.

Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 65 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken Oct. 6 2019 and Feb. 27, 2020 under Bortle 3/4 skies.

Wide field imaging of the Sagittarius region using Antlia narrowband filters 3nm HA and 03.

Captured using an ASI1600 and Sigma 70-200mm lens on a Star Adventurer mount. Nebulosity was the capture software.

30*2 min subs at 0 degrees.

Calibrated lights only in AstroPixel Processor.

Sky-Watcher Quattro 150P f/3.5

Altair Astro Hypercam 585C OSC (Offset:10 / Gain:100)

HDR mode on

156 x 60 sec. subs (~2.5hrs.)

Processed in Astro Pixel Processor, GraXpert and Affinity Photo

The Elephant's Trunk Nebula or IC 1396 as it is otherwise known, but never with such a wide field of view, at a distance of around 2400 light years from earth and is mainly illuminated by a single bright star. It is thought that this region of space is home to a pretty young star forming region.

RA: 21h39m00.01s

Dec: 57°29'24.00""

Constellation: Cepheus

Designation: IC1396

Image Details: 128x300S at Gain 100

Darks: 101 Frames

Flats: 101 Frames

Bias: 201 Frames

Acquisition Dates: Nov. 5, 2020 , Nov. 7, 2020 , Nov. 24, 2020 , Dec. 1, 2020 , Dec. 24, 2020 , Dec. 27, 2020

Total Capture time: 10.7 Hours

Equipment Details:

Imaging Camera: ZWO ASI6200MC Pro 62mpx Full Frame OSC

Imaging Scope: SharpStar 15028HNT Hyperboloid Astrograph

Guide Camera: StarlightXpress Lodestar X2

Guide Scope: 365Astronomy 280mm Guide Scope

Mount: Sky-Watcher EQ8 Pro

Focuser: Primalucelab Sesto Senso V2

Filter: Optolong L-eXtreme 2"

Power and USB Control: Pegasus Astro USB Ultimate Hub Pro

Acquisition Software: Main Sequence Software. Sequence Generator Pro 3.2

Calibration and Stacking: Astro Pixel Processor

Processing Software: PixInsight 1.8.8 and EZ Processing Suite for Star Reduction

Processed by me, data from Telescope Live Network.

PixInsight, APP and Photoshop.

Christmas Eve 2019

Altair 294c

Altair 72EDF Deluxe

Stacked in AstroPixelProcessor

Processed in PixInsight

Samyang 135 mm/AM 3/ASIAIR/Antlia Triband filter

2 hours of integration- 300 second subs

AstroPixelProcessor/PixInsight/ Photoshop CS 6

Contains a number of objects besides M 24 and M 17 including

NGC 6596

NGC 6603

NGC 6565

NGC 6590

NGC 6595

IC 1283

IC 1284

IC 4701

30x600" Lights

10x600" Darks

Sky-Watcher Quattro 150P f/3.5

QHYCCD Minicam8

LRGBHa

15 x 120sec. subs each filter (2.5hrs. total)

Processed with Astro Pixel Processor, GraXpert, NoiseXTerminator and Affinity Photo

The latest postcard from the constellation Auriga, a group of gas clouds in the process of forming stars: IC 417 (upper left), IC 410 and the associated star cluster NGC 1893 (center), and IC 405, sometimes known as the Flaming Star Nebula (right). Taken on a single nice clear but cold and moonless night from suburban Bloomington, Indiana.

3x3 mosaic, each tile 10 6 minute exposures (9 hours total exposure). Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, dual narrow-band fillter (H-alpha and [O III]), iOptron CEM25P mount, ASIAir Pro controller, processed in Astro Pixel Processor and Lightroom.

RCW is an oval shaped emission nebula in the Constellation Norma created by the Wolf Rayet star HD 147419

The region is blanketed in HAlpha emission. In an effort to pick up OIII emissions I integrated nearly three times as much data in OIII as in Ha to produce this image

Total integration 19 hours collected over 5 nights

15 hours in OIII and 4 hours in H alpha ( 10 minute subs)

Equipment

Sharpstar Z4

HEQ5

ZWO ASI 533 MM pro

Antlia 3 nm H alpha Filter

Optolong 3 nm OIII Filter

ASIAR

Software

ASIAIR

AstropixelProcessor

PixinSight

Photoshop CS6

Processing notes-

Ha and OIII data processed independently

Stack

GradientCorrection

BlurX (Correct Only)

Starnet++

Nebula

Blemish Blaster (OIII only)

BlurX

Noise X

GHS

CurvesTransformation

Stars

Setiastro StarStretch script

Stars combined with

PixelMath

HOO image created using ChannelCombination

SelectiveColour

Minor tweaking in CS6

> The Pinwheel Galaxy (also known as Messier 101, M101 or NGC 5457) is a face-on spiral galaxy 21 million light-years (6.4 megaparsecs) away from Earth in the constellation Ursa Major.

This is a stack of 60 images captured with a Nikon Z7ii, SkyWatcher Esprit 100 scope, and the HEQ5 Pro tracking mount. PHD2 software was used for guiding.

This image was made from 60x180s exposures at ISO 800, plus 20 darks and 40 flats stacked in AstroPixelProcessor and edited in Photoshop.

M31 Andromeda Mosaic with M32 and M110. With special thanks to Stefan (astroartcologne).

© Julian Köpke

There's another bright-ish comet in the sky: 19P/Borelly, now the second brightest after the departing Leonard (which is best visible from the southern hemisphere now). I captured this from suburban Bloomington, Indiana. The green coma is very prominent (from emission of carbon molecules) and there's a narrow, straight tail just visible above the sky background. Also in this frame is a galaxy, NGC 275, the fuzzier streak at upper left, some 79 million light-years away.

40 3-minute exposures, Explore Scientific 102mm f/7 refractor, ASI294MC camera, UV/IR cutoff filter, iOptron CEM25P, ASIAir controller, processed in Astro Pixel Processor, Lightroom, and Photoshop.

A lot of exposure time was needed for this image, a total of 31 hours. The bright star on the left is Supergiant star HD21389 and the reflection nebula around it is vdB15. To the right (north) we see another Supergiant blue star HD21291 and reflection nebula vdB14. Faint Ha emission can be seen also.

The data for this image was shot on: 19 aug, 10,11,12,13,14,15,16 sep 2018 using the Esprit 100 telescope and QHY16200 CCD camera cooled to -15C.

82x 300 sec Red, 82x 300 sec Green, 128x 300 sec Blue and 40x 600 sec Ha (6nm). Processed with AstroPixelProcessor and Pixinsight.

Knight Observatory, Tomar

IC 1396, a complex, dynamic region of star formation in the constellation Cepheus also called the Elephant Trunk Nebula for the prominent column left of center. That's a region of denser material being eroded and energized by nearby hot stars. The image was made in the light of hydrogen, from suburban Bloomington, Indiana.

90 total exposures, 6 min. each (total 9 hours) in six overlapping tiles. Explore Scientific ED102 102mm f/7 refractor, 0.8x reducer/flattener, ZWO ASI2600MM Pro monochrome CMOS camera, 7nm H-alpha filter, iOptron CEM25P mount, ASIAir controller, auto-guided. Processed in Astro Pixel Processor and Lightroom.

#Astrophotography #DeepSky

D5300 - unmodded

300mm f/2.8 AF-S

SW HEQ5

Captured with APT, Processed in APP, Gimp

10 - Lights, 90sec, ISO400, f/4

10 - Darks

10 - Flats

10 - Bias

This is an uncropped version of this wonderful pair of nebulae with RGB stars. I captured it as an 2-panel mosaic with 26 x 240 secs for each. Hope you like it!

Celestron RASA 8

Celestron Motorfocus

IDAS NBZ Dualband Filter

EQ6-R Pro

ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)

25 x 240 secs pro Mosaik (2 Teile)

RGB (Sterne): 50 x 5 secs pro Teil

N.I.N.A., Guiding mit ZWO ASI 462MC und PHD2

Astropixelprocessor, Photoshop, Pixinsight

Bortle 5

M51-Whirlpool Galaxy

My modest attempt at this popular DSO. Makes me wish for much more than 300mm!

Nikon D5300 - unmodded

Nikon 300mm f/2.8 AF-S

SW HEQ5

75 LIghts, 90sec, ISO400, f/4

20 Darks

50 Flats

50 Bias

Captured with APT, processed with APP/Gimp

Trifid nebula Lagoon nebula NGC 6514 NGC 6523; 33 x 300s; ISO 200. Farm Kiripotib, Namibia

© Julian Köpke

Imaging from a Bortle class 2 site makes all the difference but still had a 1/3 moon to contend with. Problems with guiding, could not get ASIair to work, problems with the hand controller.. the list goes on but that's astrophotography for ya, Just push on.

35*30 seconds, total integration time 17 minutes

Gain: 300

Temp: 0

Mount: CEM40

Polar Alignment: Pole Mster

Capture software: SharpCap

Processing: AstroPixel Processor : lights only

Dati: 55 x 300 sec a gain 5 e offset 25 a -10° c + 70 dark + 30 flat e darkflat

Filtro: Astronomik UV/IR Block L2

Montatura: EQ6 pro

Ottica: Takahashi FSQ106

Sensore: QHY168C

Cam guida e tele: magzero mz5-m su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 17 ° C - Umidità 60%

I am very happy to present the second image in which these interstellar shells can be seen at all, and at the same time, it is the first photo to show the shells so clearly thanks to the long exposure time.

Thanks to several clear nights in the fall, I was able to collect nearly 39.5 hours of narrowband data with the RASA at f/2, along with an additional hour of RGB for the stars. The processing was certainly challenging, but I managed to bring out many details in the OIII structures and the surrounding H-alpha clouds.

A few details about the objects in the image:

The bluish filaments in the center are listed in Simbad as “interstellar shells” with the designation GSH 122+02-77. These are not direct supernova remnants but rather part of the interstellar medium (ISM)—low-density material (mostly gas) that exists between stars. Stellar winds and nearby supernovae can interact with this material, forming irregular shells. The neighboring Wolf-Rayet star HD 4004 (WR1) could possibly be responsible, although there are no definitive research results on this yet.

In the upper left, you can see Sh2-181 with a pronounced OIII shell, while Sh2-175, a small emission nebula, is located on the right.

Celestron RASA 8 400mm f/2

Celestron Motorfocus

EQ6-R Pro

Camera 1 (OSC): ZWO ASI 2600 MC Pro (Gain 100, Offset 18, -10°)

RGB (Stars): 65 × 60″ (1h 5′)

Camera 2 (Mono): TS 2600 MP (Gain 100, Offset 200, -10°)

Baader H-alpha Highspeed Ultra-Narrowband 3.5nm Filter): 700 × 120″ (23h 20‘)

Baader OIII Highspeed Ultra-Narrowband 4nm Filter): 483 × 120″ (16h 6‘)

Total: 40h 31‘

Bortle 5 (19.50 SQM)

N.I.N.A., Guiding: ASI 120MM & PHD2

Astropixelprocessor, Photoshop, Pixinsight

Asteroid 516 Amherstia showed up on one of the RGB Mosaic stacks of the California Nebula (NGC1499). Visible upper right in this resulting HaRGB Mosaic the small red-green-blue trace is visible, the inset shows an enlarged view. Amherstia was imaged on 01 jan 2019 between 19:00 and 20:30 UTC.

2 Panel Mosaic, 12x900 seconds H-alpha, 24R, 23G, 22 B x 120seconds.

Esprit100 refractor/QHY16200 CCD @-20C , processed with Astropixelprocessor and Pixinsight.

en.wikipedia.org/wiki/516_Amherstia

Knight Observatory, Tomar