This image was created in the past year by myself and 3 fellow astrophotographers, Sara Wager, Kees Scherer and Dominique Dierick. It's a mosaic of 8 panels that I started in 2016 and I'm slowly extending to cover more area. For every panel I try at least to get 5 hours of H-alpha data. Sara, Kees and Dominique were so nice to share their data on this region improving the quality of the image in many ways!

The mosaic was generated with the new Astropixelprocessor software which did a great job in processing and mosaicing this image.

Exposure info:

Andre:

TMB92/QSI583ws

171x900s Ha

Sara:

Orion Optics ODK10/TMB152/QSI683wsg

146x1800s Ha

Kees:

Skywatcher Esprit 100/QHY16200

61x900s Ha

Dominique:

Takahashi FSQ106/QHY163M

36x300s Ha

The area of sky surrounding Orion' belt and sword.

A beautiful area of sky in one of the most recognisable celestial constellations.

20 hours of exposure across 2 panels in LRGB colour palette.

Data from the Telescope Live network and processed by myself.

APP for mosaic tool

PixInsight for stacking and post-processing

Photoshop for final touches

Je vous présente la nébuleuse de la trompe de l’éléphant, plus connu sous le nom de IC1396. Elle se situe dans la constellation de Céphée. Il y a 1h30 de signal, dans le futur, je prévois de faire une mosaïque de cette région absolument magnifique et riche en détail.

Pas de Dark, 50 offsets, 50 flats & 90 lights à 60sec, f/2.8, 1600iso (soit 1h30)

-Prétraitement APP (AstroPixelProcessor)

-Traitement APP, GraXpert, Starnet++, PS

Last night, despite the full moon, I still put the telescope outside to shoot luminance data from M106. A total of 54x300s was recorded with the Robtics ED130 and QSI583ws. The finishing was a tough challenge due to the gradients due to the moonlight, among other things, but the result certainly did not disappoint me. I combined this data with colour data from a previous recording I took in 2020 together with Mabula Haverkamp from Astropixelprocessor. This data was only used for the colouring, and the luminance came entirely from last night. I am quite happy with this result and think that here, when the weather permits, I will venture a few more nights for a better background (hopefully with a little less moonlight). All recording info is below the photo.

The Sadr Region features a rich complex of dust clouds and glowing nebulosity set against the plane of the Milky Way. It harbours a number of notable deep sky objects. Within this capture you can see IC 1318 The Butterfly Nebula, NGC 6888 The Crescent Nebula, open cluster NGC 6910 to name a few.

The young open cluster NGC 6910 occupies 10 arc minutes of the apparent sky and has a visual magnitude of 7.4. It lies half a degree east-northeast of Sadr and may be physically related to the Gamma Cygni Nebula. The cluster contains a number of OB stars, as well as supergiant stars, including the red supergiant RW Cygni. It is the core cluster of the Cygnus OB9 stellar association. It was discovered by William Herschel in October 1786.

Collinder 419, also within the image, is a young open cluster that surrounds the massive O-class star HD 193322. The cluster has a visual magnitude of 7.60. The nearby open cluster Collinder 421 is fainter, with an apparent magnitude of 10.10.

IC 1311 is another open cluster that can be seen in the region. With an apparent magnitude of 13.10, it is considerably fainter than the others and embedded in nebulosity.

Total of 22 hours capture over May, June and July. Originally an HOO project, but decided to add Sulphur ii and RGB Stars.

Sky Quality 19.67 Magnitude Class 5 Bortle.

Astromiks 50mm SHO 6nm Filters and RGB Filters

30 x Darks, Flats and Bias

ZWO ASI6200MM Pro

ZWO 7x2" EFW

ZWO EAF

Williams Optics GT81 IV

WO 6A III Field Flattener 0.8

HEQ5 Pro Rowan

ASIAIR Pro

Astro Pixel Processor

Pixinsight

Photoshop 2022

M101 Galaxy found in the constellation of Ursa Major.

M: Pegasus NYX-101

T: WO GTF81 Refractor

C: ZWO ASI533MM-Cooled

G: OAG and PHD2

GC: ZWO ASI120MC

RAW16; FITs

Temp: -10 DegC

Ha: Gain 100; Exp: 10 x 600s

R: Gain 100; Exp: 9 x 600s

G: Gain 100; Exp: 9 x 600s

B: Gain 100; Exp: 9 x 600s

L: Gain 100; Exp: 9 x 300s

Frames: 52 Lights; Darks/DarkFlats/Flats

Total Exposure: ~7.25 hours

90% Crop

Capture: NINA

Processed: APP [LRGBHa-1]; PS.

Sky: 77% moon, no breeze, no cloud.

Which way would you go? Left or right?

Taken with a @Canon 60D Mod at 14mm F4.0.

Sky - 13mins of 8sec untracked exposures, ISO5000, stacked in APP.

Foreground - 2x 1min exposures, ISO400, mosaic with ICE.

Processed in Photoshop

Sky-Watcher Quattro 150P f/3.5

Altair Astro Hypercam 585C OSC (Offset:10 / Gain:190)

HDR mode on

67 x 120sec. subs (2hr 14mins.)

Processed in Astro Pixel Processor, Seti Astro Cosmic Clarity and Affinity Photo

Bonjour à tous, aujourd’hui, je vous présente la nébuleuse de l’iris (NGC7023) ainsi que la nébuleuse sombre du requin (LDN1235). Cette photo a représenté pour moi, un véritable défi technique puisqu’avec mon matériel actuel, je ne dispose pas d’un système type GoTo.

—

Il m’a fallu dans un premier temps, réussir à me repérer dans le ciel pour mon cadrage. Bien que les nébuleuses se trouvent dans la constellation de Céphée, avec un 135mm, il y a de quoi frôler la crise de nerf. J’ai donc choisi de cadrer depuis l’étoile d’Alfrik qui se trouve plus ou moins à mi-distance des deux cibles.

—

Coté technique nous sommes sur 5h de prise de vue, Bortle 2.5, apn défiltré, 135mm et cette chère Star Adventurer. Concernant le traitement, il a été réalisé grâce à AstroPixelProcessor, GraXpert, Starnet++ et Photoshop.

Simeis 147, also known as the Spaghetti Nebula (SH2-240), is a supernova remnant in the Milky Way straddling the border between the constellations Auriga and Taurus. Discovered in 1952 at the Crimean Astrophysical Observatory using a 25-inch Schmidt-Cassegrain telescope, it is difficult to observe due to its extremely low brightness. It is believed that after its stellar explosion a rapidly spinning neutron star known as pulsar PSR J0538+2817 was left behind in the nebula core, emitting a strong radio signal. (4 Panel Mosaic, Explore Scientific ED80, ZWO ASI2600MM, ASIAIR, EAF, EFW, AM5, Antlia SHO 3nm, Astropixelprocessor, Pixinsight, Photoshop).

Altair Astro 294c

Skywatcher 200pds

160x120s total integration

Stacked in AstroPixelProcessor

Processed in PixInsight and Photoshop

Sky-Watcher Quattro 150P f/3.5

Altair Astro Hypercam 585C OSC (Offset:8 / Gain:685 (HCG) )

120 x 60 sec. subs (2hrs.)

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

These glowing filaments and wispy tendrils of the Vela Supernova Remnant are all that remains of a star much like our sun. It once glowed bright and provided warmth to worlds like our earth. And then at the end of its life, the star went supernova and destroyed worlds - leaving a tapestry of colors and shapes behind.

Calibrated images of the Vela Supernova Remnant were provided by iTelescope.net. In addition to providing access to their telescopes, iTelescope.net provides subscribing members with a combination of premium image sets (with the rights to use & post them) and webinars that show how to process them. Itelescope.net captured the images using their T10 telescope based in the Siding Spring Observatory in New South Wales, Australia. I handled the post-processing side with Astro Pixel Processor, Photoshop, Star Xterminator, Star Spikes Pro, Topaz Sharpen and DeNoise AI.

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%

Flame Nebula (NGC 2024) and Horsehead Nebula in the constellation Orion.

This is an integration of 35x180s exposures at ISO 800 with a Nikon Z7ii and a Skywatcher Esprit 100 on a HEQ5 mount. Stacked in AstroPixelProcessor.

Under a frigid but very clear sky last night I tried out a new filter and was able to combine the resulting data with some previous images to produce this composite of the star-forming region known as IC 410, the larger cloud at upper left, along with the smaller IC 417 to the lower right. (For the astronomy purists, this is rotated relative to the usual north-up orientation, but I thought it looked more interesting this way (and there's no "up" in space anyway).

This rendering is a lot like many of the images from the Hubble Telescope that combine the light of the three elements sulfur, hydrogen, and oxygen into the colors red, green and blue respectively.

Mosaic of 13 separate frames, multiple exposures each; Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, dual narrow-band filter (H-alpha+[O III]), [S II] filter, ASIAir controller, iOptron CEM25P mount, processed in Astro Pixel Processor and Lightroom.

Part of the much larger Cygnus Loop, it's the ionised gas remnants of a supernova and is around 1470 LYs from Earth. The area is VAST ( it would take me a month of solid imaging to capture it all on this camera and scope set up).

This image is a mono capture using two filters to capture light from different gases in the nebula: Hydrogen alpha and Oxygen 3. These have then been combined into Red = Ha, Blue and Green = O3.

I love shooting this area of the sky as the detail that comes out is fantastic - shame it's only visible in the summer when dark hours are down to a couple per night.

QHY163m, Skywatcher 130pds (with 0.9x coma corrector)

Baader 7nm Ha and 8nm O3 filters

Stacked in AstroPixelProcessor and processed in PixInsight

50x240s exposures per filter, 20 darks, 20 flats, 20 dark flats

Star Adventurer - Canon 6D - Lente Canon EF 50mm f/1,4 USM

25 lights - f/4 - 300s - ISO 1600 - 4000K - 16 darks - 24 flats

Procesado: AstroPixelProcessor - Adobe Lightroom

M33, a beautiful spiral galaxy in the constellation Triangulum. It's "only" about 2.8 million light-years away, making it the next nearest large spiral galaxy to us (just beyond M31, the Andromeda Galaxy), and part of the association of galaxies called the Local Group. Had a couple of nice clear, calm nights recently, though the moon is waxing past last quarter, and local lights add to the sky brightness.

Tech: 75 5-minute exposures, ASI294MC camera, Nikon 200-500mm f/5.6 lens, UV/IR cut filter, iOptron CEM25P mount, ASIAir controller, auto-guided, processed in Astro Pixel Processor and Lightroom.

November 5-6, 2021. 2 panel mosaic.

A galaxy group in Ursa Major and Camelopardalis, one of the nearest galaxy groups to the Local Group at approximately 3.6Mpc away.

The big obvious spiral is M81, Bode's Galaxy at about 12 Mly away, with a supermassive black hole about 70 million solar masses. The bright blue the spiral arms are star formation regions; the pink/red spots are nebulae.

The second-largest is M82, aka the Cigar Galaxy, also 12Mly away, home to the brightest pulsar yet known, M82-X-2. Tidal forces from interaction with M81 have caused massive star formation.

The wispy lines and areas are Integrated Flux Nebulae (IFN), bodies of gas and dust outwith the main body of the galaxy illuminated by the light of the galaxies themselves. You could say it's a bit faint - there are stars down to magnitude 16.1 in here, easily.

This is 8 hours' exposure on the Altair 26C using 3-min subs, gain 100, Neodymium filter.

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%

IC 1396 Elephant Trunk Nebula, star-forming HII region in Cepheus.

2x3 mosaic, 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.

Comet C/2019 L3 (ATLAS) passes the small open cluster NGC 2266. Processed once to register the stars, again to register the comet and composited in Photoshop.

Explore Scientific ED102 0.1m f/7 refractor, ZWO ASI294MC camera, UV/IR cutoff filter, iOptron CEM25P mount, ASIAir controller, Processed in Astro Pixel Processor, Lightroom, and Photoshop.

An underrated area of the Gamma Cygni nebula IC 1318 - vdB 134 is a reflection nebula, reflecting the light of ω1 Cygni about 869 ly distant.

Toward the bottom of the frame is planetary nebula PLN 86 + 5 1.

128 * 3min lights OSC data with a Skywatcher 8" Quattro and Neodymium filter, lots of biases, flats and darks processed in APP, PI and Affinity.

With my experience capturing and processing deep space objects continuing to grow, I wanted to revisit a few of my favorite celestial locations including the North America and Pelican Nebulae. I think this version shows improvement and I hope you like it too.

I captured this image (from my home in Colorado) using iTelescope.net's T20 telescope located in an observatory in Beryl Junction, Utah. I captured 69 images over 2 nights using both wideband and narrowband filters and processed them with Astro Pixel Processor, Photoshop, Star Xterminator, Star Spikes Pro, and Topaz Denoise/Sharpen. I found that Star Xterminator allowed me to separate the nebulae clouds from the stars - a step that helped a quite a bit.

Exposure Settings

• 69 - 5 minute exposures

○ Luminance: 18

○ Red: 8

○ Green: 8

○ Blue: 8

○ Hydrogen-Alpha: 9

○ Sulfur-II: 9

○ Oxygen III: 9

• Total Exposure Time: 345 minutes

Telescope Optics & Camera

• Optics: Takahashi FSQ-ED (T20)

• Focal Length: 530 mm

• Mount: Paramount ME

• CCD: SBIG STL-11000 - 10.7 mb

• Observatory Location: Beryl Junction, Utah

The Pleiades star cluster in the constellation Taurus. Stars and dust gravitationally bound to each other.

1x3 mosaic, each tile 30 300 second exposures frames (7.5 hours total exposure). Explore Scientific 102mm f/7 refractor, ZWO ASI294MC camera, UV/IR cut fillter, iOptron CEM25P mount, ASIAir Pro controller.

A large but relatively faint, emission nebula in Vulpecula. it contains the small reflection nebula NGC 6820 and the open cluster NGC 6823. It is most well known for the prominent pillar in the brighter core, though many other fascinating substructures can be seen in the dimmer parts of the nebulosity. The main body of the nebula is crossed by a dark cloud.

The image was taken with Ha (mapped to red), S-II (mapped to yellow/green), O-III (mapped to cyan) ultra-narrowband filters as well as with the g’ photometric filter (mapped to blue) to pick up the faint reflection nebulosity. The O-III signal is weakest but present in the bright core. Stars are from the sulfur-II plates and are thus without colour. Processing in AstroPixelProcessor, StarTools, PixInsight and Photoshop.

SIGMA fp L (Monochrome)

Celestron RASA 11

10 Micron GM1000 HPS

4,5 hrs, ISO 400, 620mm, F2.2

Comet 19P/Borrelly, currently the brightest comet in the sky, though rather faint.

A composite of 61 exposures, 2 minutes each, processed to register on the comet and separately to register on the stars, combined in Photoshop.

Explore Scientific ED102 102mm f/7 refractor, 0.8x reducer/flattener, ZWO ASI294MC camera, UV/IR cutoff filter, iOptron CEM25P mount, ASIAir controller. Processed in Astro Pixel Processor, and Lightroom.

The California Nebula, NGC 1499, a cloud of gas and dust in the constellation Perseus, named for its resemblance to the shape of California. I was surprised at the amount of detail and color separation, which results from the combination of exposures in the light of hydrogen (green), sulfur (red), and oxygen (blue). This is a mosaic of three frames with a total exposure of 9 hours with the dual hydrogen+oxygen filter and 6 hours with the sulfur filter.

Explore Scientific ED102 102mm f/7 refractor, ZWO ASI294MC Pro camera, dual narrow-band filter (Hα,[O III]), [S II] filter, iOptron CEM25P mount, ASIAir controller. Processed in Astro Pixel Processor and Lightroom

#astrophotography #deepskyphotography #nebula

47 Tucanae (NGC 104) is a globular star cluster located about 13,000 light years away from Earth. The actual number of stars in this globular cluster is believed to be ~500,000 stars and the core is said to contain nearly 35,000! If planets could exist around the stars in the core of this cluster, one could only imagine what you would see in the day or night sky.

Some details about the image:

Unlike the last object; this image was created by capturing light in the red, green, blue wavelengths. A clear (luminance) filter was used to capture detail.

Filters and Exposures:

Lum bin 1x1; RGB bin 2x2

Lum = 23x120 sec; 30x60 sec

R = 26x120 sec

G = 26x120 sec

B = 25x120 sec

Total integration: ~3.9hrs

Telescope and Camera:

T31 (Planewave 20" (0.51m) CDK)

Camera = FLI-PL09000

Software: AstroPixel Processor, Photoshop

The Veil Nebula NGC6979 and NGC6974.

This is my first attempt at processing Pickering's Triangle, a segment of the Veil Nebula, using data from iTelescope's new Delta Rho 500 f/3 (T26) in Utah. The data was provided as part of my subscription plan; as such, it was limited to 2 x 600s HA, SII, and OIII files already calibrated, giving a one-hour integration time.

The files were first integrated using AstroPixelProcessor, then processed using PixInsight, with a final tweak using Photoshop to bring out a little more contrast.

One of the brightest stars in the night sky and a dwarf galaxy right next to it: Regulus and the dwarf galaxy Leo I are a fascinating pair that I've had on my to-do list for quite some time. However, my first attempt turned out to be a failure because, after stacking, it turned out that a spike from Regulus was going right through the Leo I galaxy. I hadn't considered the spikes at all during the preparation of the capture. Fortunately, a new opportunity arose four weeks later, and I rotated the tube of my Newtonian telescope so that Leo I was now located between the spikes.

In the final stack, Leo I was nicely clear, bright, and clearly visible, so I could keep the editing very simple. Thanks to the CNC machined secondary spider, Regulus' spikes were also nearly perfect and required no corrections at all. I wish every image would work out like this...

I hope you enjoy my version of this odd couple!

Some more facts:

Regulus is not really a single star, but a multiple star system. It consists of two pairs of stars. Regulus A, the primary component in the Regulus system, is a spectroscopic binary star composed of a blue-white main sequence star with the spectral classification B7 V and a companion believed to be a white dwarf. With a visual magnitude of 1.35, Regulus A is reponsible for the star system’s brightness and bluish colour. The system lies approximately 79 light years from the Sun.

Leo I is a dwarf spheroidal galaxy in the constellation Leo. At about 820,000 light-years distant, it is a member of the Local Group of galaxies and is thought to be one of the most distant satellites of the Milky Way galaxy.

Leo I is located only 12 arc minutes from Regulus. For that reason, the galaxy is sometimes called the „Regulus Dwarf“. Scattered light from the star makes studying the galaxy more difficult, and it was not until the 1990s that it was detected visually. Typical to a dwarf galaxy, the metallicity of Leo I is very low, only one percent that of the Sun. The galaxy may be embedded in a cloud of ionized gas with a mass similar to that of the whole galaxy.

Skywatcher 200 1000 @750mm f/3.75

Starizona Nexus Coma Corrector & Reducer

Secondary Spider by Backyard Universe

EQ6-R Pro

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

RGB (Baader UV/IR Cut Filter): 180 × 60″

Total: 3 h

Bortle 5

Darks, Flats, Darkflats, Dithering

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

Astropixelprocessor, Photoshop, Pixinsight

My goal with framing this shot was to include the Dumbbell Nebula (tiny, but bright, on the left), the asterism Brocchi's Cluster (lower right, AKA Coathanger) and some of the well-defined dark nebulae in the region (upper right). Emission nebulae are also fairly prominent near the center.

Acquisition details: Fujifilm X-T10, Samyang 135mm f/2.0 ED UMC @ f2.0, ISO 1600, 50 x 60 sec, tracking with iOptron SkyTracker Pro, stacking with DeepSkyStacker, editing with Astro Pixel Processor and GIMP, taken July 23, 2020 from Bortle 3/4 skies.

Dati: 12 x 300 sec a gain 5 e offset 25 a -10° c + 70 dark + 25 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

Dati: 156 x 300 sec ( 13 ore) gain 5 @ -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: asi120mm su Scopos 62/520

Software acquisizione: nina e phd2

Software sviluppo: AstroPixelProcessor e Photoshop

Temperatura esterna: 18 ° C - Umidità 70%

Sky-Watcher Quattro 150P f/3.5

QHYCCD Minicam8

HSO

30 x 60sec. each filter.

Processed with Astro Pixel Processor, NoiseXTerminator and Affinity Photo.

NGC 7822, a region of active star formation toward the constellation Cepheus with some amazing details of pillars and dust lanes.

70 total exposures in three mosaic tiles, 6 min. each (total 7.5 hours). 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

#deepsky #astrophotography

Sh2-263 is a red HII emission nebula in the constellation of Orion, located in the center of this image. The central star is HD 34989, a blue-white 5.8 magnitude star, located 1700 light-years away. The blue reflection nebula near the center is called vdB-38

Camera: QHY268M

Telescope: 11" Celestron Edge HD with Hyperstar V4

Mount: Orion HDX-110

Filter: Optolong UV/IR cut (Luminance)

60x120sec

Camera: QHY128C

Telescope: AstroTech AT65EDQ

Mount: Orion HDX-110

Filter: Optolong UV/IR cut (RedGreenBlue)

15x480sec

The L+RGB shot from the 2 telescopes were acquired with SGPro and APT, processed in AstroPixelProcessor, Pixinsight & combined in Photoshop 2024

Resolution ............... 1.430 arcsec/px

Rotation ................. -3.498 deg

Reference system ......... ICRS

Observation start time ... 2024-02-01 12:00:00 UTC

Focal distance ........... 532.19 mm

Pixel size ............... 3.69 um

Field of view ............ 2d 20' 48.0" x 1d 31' 50.4"

Image center ............. RA: 5 21 41.606 Dec: +8 24 07.36

Annotated Version: flic.kr/p/2pxbT6x

NGC 7023: The Iris Nebula in the constellation of Cepheus.

First run at this target on a 99% full moon night.

M: iOptron EQ45-Pro

T: William Optics GTF81

C: ZWO ASI1600MC-Cooled

F: No Filters

G: PHD2

GC: ZWO ASI120mini

RAW16; FITs

Temp: -20 DegC

Gain 139

104 x Exp 100s

Frames: 104 Lights; 2 Darks; 200 flats

95% Crop

Capture: SharpCap

Processed: APP; PS; Grad Exterminator.

Sky: Full Moon, calm, no cloud, mild, good seeing.

NGC7023: 1.3 thousand light years distant.

North America & Pelican Nebula (2-panel mosaic)

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 for each panel

N.I.N.A., Guiding with ZWO ASI 462MC and PHD2

Astropixelprocessor, Photoshop, Pixinsight

Bortle 5

This is a SHO version of my capture of this beautiful area in Cepheus, located between „Wizard Nebula“ and „Elephant's Trunk Nebula“. Very faint, but comprising spectacular objects like the emission nebulae Sh2-134 and Sh2-135, the open star cluster NGC 7261 and a bunch of LDNs and LBNs, it turned out as a very nice photo project.

Celestron RASA 8 f/2

Celestron Motorfocuser

EQ6-R Pro

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

Ha & OIII (IDAS NBZ Filter): 80 × 120″ (2h 40′)

TS 2600 MP Mono (Gain 100, Offset 50, -10°)

Ha: (Baader H-alpha Highspeed Ultra-Narrowband 3.5nm Filter): 70 x 120 (2h 20')

OIII: (Baader OIII Highspeed Ultra-Narrowband 4nm Filter): 140 x 120 (4h 40')

Total: 9 h 40‘

Flats, Darkflats, Dithering

N.I.N.A., Guiding with ZWO ASI 120MM and PHD2

Astropixelprocessor, Photoshop, Pixinsight

h + chi, the famous double cluster in the constellation Perseus. The object was already know to the greek astronomer Hipparchus 130 B.C.

Object: h + chi Persei (NGC 869 + NGC 884, Perseus Double Cluster)

Optics: GSO Newton 8" F4 + GPU

Mount: Celestron CGEM

Camera: ZWO ASI 1600MMC @-20°C, Gain=75, Offset=15

Filter: ZWO EFW 7x36mm, ZWO 36mm Filters

Exposure: total ~1h, R 40x30sec, G 40x30sec, B 40x30sec, L (mixed from RGB), 200 Bias, 40 Darks, 40 Flats per channel

Date: 2017-10-16

Location: Schwaig

Capture: Sequence Generator Pro

Guiding: Off-Axis, ASI120MM, PHD2

Image Acquisition: Stephan Schurig

Image Processing: Stephan Schurig

AstroPixelProcessor 1.070: Calibration, Registration, Normalization, Integration, Channel Combination, Background Flattening & Calibration, Star Colors Correction, Auto Digital Development

Photoshop 20.0.1: Levels, Curves, Exposure (Gamma, Offset, Exposure), Masked Nik Dfine 2 Denoise, Masked Dynamic (Dynamic, Saturation), Star Shrink, Masked HighPass Sharpening, Levels

18x300sec.

Date: 0:20JST- May.10, 2021

Location: Amagi Highland, Shizuoka Pref., Japan

Optics: SIGMA 70mm F2.8 DG MACRO | Art (f/3.2)

Mount: RainbowAstro RST-135

Camera: Canon EOS 6D (mod/SEO-SP4)

ISO speed: 1600

Exposure: 15x120sec.x3panel

Processing: PixInsight, AstroPixelProcessor

10x300sec.

I captured this image of Albireo, one of the main, visible stars in the constellation of Cygnus. Actually, make that two as it is a double star. They stand out brightly against the glittering backdrop of the Cygnus Star Cloud.

Albireo A is the larger, amber star and Albireo B is the smaller sapphire blue star. If they are orbiting each other the orbital period is at least 75,000 years.

It turns out that Albireo A is itself a binary star with the components orbiting every 100 years. This whole system is a mere 380 light years away. You could almost touch it - if you had long arms.

The amber star is about 50 times the size of our sun and shines 950 times as bright. The little blue star is only 3 times the mass of our sun and only shines 190 times as bright.

This is a combination of 62 ten-second exposures using my C11. Any longer and the bright stars would have been way over exposed, any less and the background stars would not have shown up.

~~~~~

Telescope: Celestron C11-A XLT Schmidt Cassegrain OTA

Mount: SkyWatcher EQ6-R Pro

Controller: ZWO ASIAIR Plus 256G

Main Camera: ZWO ASI533MC Pro at -10C

Filter: ZWO UV/IR Cut filter

Focuser: ZWO EAF

Guide Camera: ZWO ASI174MM Mini guidecam

Guide via: ZWO OAG

Stacked from:

Lights 62 at 10 seconds, gain 101, temp -10C

Darks 30 at 10 seconds, gain 101, temp -10C

Flat 30 at 570 ms, gain 101, temp -10C

Dark Flat 30 at 570 ms gain 101 temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor.

Processed in PixInsight

Added captions in Photoshop CS4