It was clear last night so I was able to set up my C11, spend several hours setting up the mount and the scope, faffing about with focus and guiding and calibration frames and all that sort of guff.

Then I pointed at M92, a globular cluster of stars in the constellation of Hercules. A grand sight. For all of 15 minutes before the clouds rolled in. Oh well. At least I got enough data to build this image.

The cluster lies at a distance of 26,700 light years from Earth and has an estimated mass of up to 330,000 solar masses. With an estimated age of 14.2 billion years – almost the same age as the universe itself – M92 is one of the oldest clusters known and possibly the single oldest globular in the Milky Way

~~~~~

Telescope: Celestron C11-A XLT Schmidt Cassegrain OTA

Mount: SkyWatcher EQ6-R Pro

Controller: ZWO ASIAIR Plus

Main Camera: ZWO ASI533MC Pro at -10C

Filter: Optolong L-Pro filter 1.25"

Filter Wheel: ZWO EFW 5 Mini

Focal reducer: TS Optics 0.63x

Focuser: ZWO EAF

Guide Camera: ZWO ASI174MM Mini guidecam

Guide via: ZWO OAG

Stacked from:

Lights 15 at 60 seconds, gain 101, temp -10C

Darks 30 at 60 seconds, gain 101, temp -10C

Flats 30 at 220 ms, gain 101, temp -10C

Dark Flats 30 at 220ms gain 101 temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor.

Processed in PixInsight

Labels added in Photoshop CS4

Heart Nebula (IC-1805), 07/10/2021

So on the second night of my last camping adventure to catch starlight I shot the Heart Nebula on a whim. Again, I have done this a few times before, but it was in a good location in the sky, and I wanted to try my new processing techniques on this one as well. This night went way easier than the night before and I was able to get some great data. It may be my favorite image to date and I’m pretty sure I will be making a big print for my wall.

The Heart Nebula is found in the constellation of Cassiopeia and is some 7500 light-years away. If you could see it with the naked eye, it would be almost ten times the size of the full moon in the night sky. The lower portion of the Heart Nebula has its own designation NGC 896 and is called the Fish Head Nebula.

Equipment:

RASA 8

iOptron GEM45

ZWO ASI294MC-Pro

ZWO Asiair Pro

Optolong L-eHhance filter

Details:

Location – Buck Creek Campground

Bortle Class 3

Gain 120

90 120-second Lights (3 hours total)

60 Darks

60 Bias

60 Flats

Astro Pixel Processor

StarNet++

Lightroom

Photoshop

#astrophotography #astronomy #comos #nightphotography #space #telescope #deepsky #asi294mcpro #amateurastronomy #backyardastronomy #asiair #asiairpro #rasa #celestron #ioptrongem45 #astropixelprocessor #optolong #deepskyobject #zwo #longexposurephotography #astronomyphotography #IC1805 #Heartlnebula #NGC896 #Fishheadnebula

The Deer Lick Galaxy Group is really only a visual grouping of galaxies in the constellation Pegasus.

The large, spiral galaxy NGC 7331 in the centre of this picture is a foreground galaxy in the same field of view as the collection known as the Deer Lick Group. It contains four other members, affectionately referred to as the "fleas": the lenticular or unbarred spirals NGC 7335 and NGC 7336, the barred spiral galaxy NGC 7337 and the elliptical galaxy NGC 7340. These galaxies lie at distances of approximately 332, 365, 348 and 294 million light years, respectively.

Although adjacent on the sky, this collection is not a galaxy group, as NGC 7331 itself is not gravitationally associated with the far more distant "fleas"; indeed, even they are separated by far more than the normal distances (~2 million light years) of a galaxy group.

Even so, it is nice to be able to capture so many galaxies in one shot.

Telescope: Celestron C11-A XLT Schmidt Cassegrain OTA

Mount: SkyWatcher EQ6-R Pro

Controller: ZWO ASIAIR Pro

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 93 at 120 seconds, gain 101, temp -10C

Darks 30 at 120 seconds, gain 101, temp -10C

Flat 30 at 1.14s, gain 101, temp -10C

Dark Flat 30 at 1.14s, gain 101 temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor.

Processed in PixInsight.

Captions added in Photoshop CS4

Vdb-142 Elephant Trunk Nebula, nebulosa oscura nella Costellazione del Cefeo a 3.000 anni luce di distanza, galassia di appartenenza via Lattea.

Setup, Skywatcher Heq5 goto, Svbony 102ed, camera Asi2600mc pro, filtro Optolong L-extreme, camera guida Asi224mc teleguida 60/240

Light 47x600” tot. Integrazione : ore 7:50

Più Dark, Flat e DarkFlat.

Software di acquisizione Ekos su dispositivo Raspberry OS StellarMate.

Software di elaborazione AstroPixelProcessor e Pixinsight.

Bortle 7.2

Cieli sereni ✨✨✨

60 exposures, 60 sec. each

Explore Scientific ED102 102mm f/7 apochromat refractor

Stellarvue 0.8x reducer/flattener (571mm fl)

ZWO ASI2600MC Pro cooled color CMOS camera, gain 200, bin 2 -10ºC

IDAS DTD light pollution filter

ZWO EAF autofocuser

iOptron CEM25P mount

ZWO ASIAir Pro controller

auto-guided, SVBONY SV2165 30mm f/4 guide scope, ZWO ASI120MM Mini guide camera

Processed in Astro Pixel Processor, Adobe Lightroom, Adobe Photoshop

#astrophotography #deepskyphotography #CometLemmon

Located in constellation Casseiopeia and is a part of th Heart nebula.

Picture consists of:

16x600sec lights

some Darkframes and flatframes.

This all stacked in astropixelprocessor and post-processed in PS.

Equipment:

Camera/Telescoop: ZWO ASI533MC pro, William optics Zenithstar 73 w. adj flattner 73a,

Guide: ZWO ASI120MM mini + WO uniguide 50mm

Mount: Ioptron CEM 25p

Filter:

STE Duobandfilter

From my October, 2019 trip to Cosmic Campground. New Mexico. 30 x 3 minute exposures with ASI294 camera; SV80 Access on Losmandy GM811G mount. Processed with Astropixelprocessor with tweaks from Startools and ACDSee.

Compare with the image from earlier this summer with a different camera (Olympus OMD-EM1 Mark ii). The ASI pretty well blows the Olympus away--not surprisingly, because the ASI is a dedicated astrocamera and the Oly isn't.

M81 en M82 Sigaar en Bodestelsel

GSO Newton telescope 800 / f4 on EQ6-R-Pro

Camera Canon Eos 80d not modified, filter : Optolong L-pro

23 en 24 Maart 2022, ISO 800, 39 x 600 sec

Total exposure: 6u 30 min

AstroPixelProcessor + Photoshop

At the end of my stargazing session last night there was still a bit of dark sky remaining so I spent about three quarters of an hour on Messier 29.

M29, also known as NGC 6913, is sometimes called the Cooling Tower Cluster. It is a quite small, bright open cluster of stars just south of the central bright star Gamma Cygni in the constellation of Cygnus, the Swan.

I didn't have to spend hours capturing faint wisps of galactic spiral arms or fetching the folds and details of a nebula because the stars show up quickly against the dark sky.

~~~~~

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 IR Cut filter

Focuser: ZWO EAF

Guide Camera: ZWO ASI174MM Mini guidecam

Guide via: ZWO OAG

Stacked from:

Lights 23 at 120 seconds, gain 101, temp -10C

Darks 30 at 120 seconds, gain 101, temp -10C

Flats 30 at 1.08 seconds, gain 101, temp -10C

Dark Flats 30 at 1.08 seconds gain 101 temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor.

Processed in PixInsight

Added captions in Photoshop CS4

The Fishhead nebula (NGC 896 / IC 795) is an emission nebula in the constellation Cassiopeia. A star forming region, the intense red colour comes from hydrogen photon emissions. Also visible in this nebula are dark lanes of obscuring dust. The nebula is approximately 6000 light years distant. The brighter region of the nebula is catalogued as NGC 896.

This nebula is a part of a much larger complex of nebulosity including the Heart Nebula (IC 1805).

Telescope: Celestron C11-A XLT Schmidt Cassegrain OTA

Mount: SkyWatcher EQ6-R Pro

Controller: ZWO ASIAIR Pro

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 23 at 300 seconds, gain 100, temp -10C

Darks 10 at 300 seconds, gain 100, temp -10C

Flat 30 at 80.0ms, gain 100, temp -10C

Dark Flat 30 at 80.0ms, gain 100, temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor and adjusted in Photoshop CS4.

Canon 1100D Fullspectrum (astronomik L filter uv/ir cut) Tecnosky 70/420 ED 1X; Orion Starshot Autoguider; Skywatcher AZEQ5

ISO 1600 - Exp: 9h (90*6'); Darks & Flats & Bias

APP + PS (Astronomy Tools; Tonalitymasks) + LR

Siena, 20-21/02/2020

Messier 53 (M53) is a globular star cluster located in the northern constellation Coma Berenices. The cluster is almost 60,000 light years from Earth. It contains at least 500,000 stars.

The stars in the cluster are considered metal-poor, as they contain very little quantities of elements heavier than helium, which is below average for stars found in a globular cluster.

~~~~~

Telescope: Celestron C11-A XLT Schmidt Cassegrain OTA

Mount: SkyWatcher EQ6-R Pro

Controller: ZWO ASIAIR Pro

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

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

Flat 30 at 1.2s, gain 101, temp -10C

Dark Flat 30 at 1.2s gain 101 temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor.

Processed in PixInsight

Added captions in Photoshop CS4

Halpha: 3,2h; RGB:10,0h

Processed in @astropixelprocessor, PS and LR.

Equipment:

Camera/Telescoop: ZWO ASI533MC pro, William optics Zenithstar 73 w. adj flattner 73a,

Guide: ZWO ASI120MM mini + WO uniguide 50mm

Mount: Ioptron CEM 25p

NGC 2903 en NGC 2916

GSO Newton telescope 800 / f4 on EQ6-R-Pro

Camera Canon Eos 80d not modified, filter : Optolong L-pro

21 Febr 2021, ISO 800, 26 x 300 sec (+darks,flats,bias)

27 maart 2022, ISO 800, 13 x 600 sec (+darks,bias,flats, darkflats)

Total exposure: 4u 20 min

AstroPixelProcessor + Photoshop

Dirk Van Luyten – Zoersel – Belgium

I liked the look that my Seestar got of M104, the Sombrero Galaxy so I took a closer look with my C11 last night for about three and a half hours.

The Sombrero Galaxy, also known as Messier 104 (M104), is a famous unbarred spiral galaxy. It lies at a distance of 29.3 million light years from Earth in the direction of the constellation Virgo.

The Sombrero Galaxy is known for its appearance, similar to that of a Mexican hat, with a bright white core surrounded by thick lanes of dust and a halo of globular clusters and stars. The galaxy appears almost exactly edge-on when observed from Earth.

There is a supermassive black hole at the heart of the Sombrero Galaxy. It is one of the most massive black holes detected in galaxies near the Milky Way. It is believed to have a mass of at least a billion suns. This would make it about 250 times larger than the black hole in the centre of our galaxy, the Milky Way.

~~~~~

Telescope: Celestron C11-A XLT Schmidt Cassegrain OTA

Mount: SkyWatcher EQ6-R Pro

Controller: ZWO ASIAIR Plus

Main Camera: ZWO ASI533MC Pro at -10C

Filter: Optolong L-Pro filter 1.25"

Filter Wheel: ZWO EFW 5 Mini

Focal reducer: TS Optics 0.63x

Focuser: ZWO EAF

Guide Camera: ZWO ASI174MM Mini guidecam

Guide via: ZWO OAG

Stacked from:

Lights 217 at 60 seconds, gain 101, temp -10C

Darks 30 at 60 seconds, gain 101, temp -10C

Flats 30 at 220 ms, gain 101, temp -10C

Dark Flats 30 at 220ms gain 101 temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor.

Processed in PixInsight

Labels added in Photoshop CS4

GSO Newton telescope 800 / f4 on EQ6-R-Pro

Camera ZWO ASI294MC pro, met OAG, filter :Optolong LPro

25 sep 2022, Gain 120, at -20°, 19 x 300 sec (+darks,bias, flats)

Total exposure: 1u 35 min

AstroPixelProcessor + Photoshop

Dirk Van Luyten – Molezon – France

A region of star formatiompn in the constellation Monoceros known as NGC 2264 containing the Cone Nebula (bottom) and Christmas Tree star cluster (top). 66 exposures, 5 min. each in 3 mosaic tiles in the light of warm hydrogen gas, from suburban Bloomington, Indiana. GSO 8" f/8 RC OTA, ZWO ASI2600MM Pro cooled monochrome CMOS camera, SVBONY H-alpha 7nm filter, ZWO EAF autofocuser, Losmandy GM811G mount, ZWO ASIAir Plus controller, auto-guided, AstroTech AT60GS 60mm f/4 guide scope, ZWO ASI290MM Mini guide camera. Processed in Astro Pixel Processor, Lightroom, Photoshop

On the first clear night in a month I had two hours to capture something so I focussed on what I call the Brighton and Hove Albion Nebula (aka the Seagulls).

It is a broad expanse of glowing gas and dust presenting a bird-like appearance, hence its more common name - The Seagull Nebula. You can just about make out the wings and body. If I had more time they would have been more distinct.

The cloud of gas at the ‘head’ of the Seagull (Sharpless 2-292) glows brightly due to the energetic radiation from an extremely hot young star within it (HD 53367).

Sharpless 292, IC 2177, and NGC 2327 all refer to the ‘head’ of the Seagull, which is only a small portion of the larger nebula. The entire nebula region spans nearly 240 light-years across.

The picture also includes two open clusters of stars. NGC 2335 is about a third of the way up on the left and NGC 2343 is in the centre at the bottom of the picture. There are so many other stars here it may be hard to tell what is a cluster and what isn't.

Equipment Used

Telescope: William Optics Zenithstar 81 APO

Mount: SkyWatcher EQ6-R Pro

Controller: ZWO ASIAIR Plus

Main Camera: ZWO ASI533MC Pro at gain 101, temperature -10C

Filter: ZWO IR cut-off (Infrared block) filter

Focal reducer: William Optics 0.8x 2.00"

Focuser: ZWO EAF

Guide Camera: ZWO ASI290MM Mini guidecam

Guide Scope: William Optics 50mm

Stacked from:

Lights 25 at 300s, gain 101, temp -10C

Darks 30 at 300s, gain 101, temp -10C

Flats 30 at 850ms, gain 101, temp -10C

DarkFlats 30 at 850ms, gain 101 temp -10C

Bortle 4 sky.

Stacked in AstroPixelProcessor and adjusted in Photoshop CS4 and Topaz DeNoise AI

The Horsehead Nebula (also known as Barnard 33) is a small dark nebula in the constellation Orion. The nebula is located just to the south of Alnitak, the easternmost star of Orion's Belt, and is part of the much larger Orion Molecular Cloud Complex. It appears within the southern region of the dense dust cloud known as Lynds 1630, along the edge of the much larger, active star-forming H II region called IC 434. which you can see in the bottom left corner of this image

The Horsehead Nebula is approximately 1,400 light-years from Earth. It is one of the most identifiable nebulae because of its resemblance to a horse's head.

Telescope: Celestron C11-A XLT Schmidt Cassegrain OTA with 0.63x flattener/reducer.

Mount: SkyWatcher EQ6-R Pro

Controller: ZWO ASIAIR Pro

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 12 at 300 seconds, gain 100, temp -10C

Darks 10 at 300 seconds, gain 100, temp -10C

Flat 30 at 80.0ms, gain 100, temp -10C

Dark Flat 30 at 80.0ms, gain 100, temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor and adjusted in Photoshop CS4.

Pleiades or Seven Sisters is a star cluster with reflective nebulae. I took this image in 2-panel mosaic with QHY294M camera attached to Takahashi TSA120 telescope during 5-7 January 2021. Total 320x120s light frames were processed with Astropixelprocessor and final retouched in Lightroom classic.

M97 en M108, Uilnevel en Surfbord

GSO Newton telescope 800 / f4 on EQ6-R-Pro

Camera Canon Eos 80d not modified, filter : Optolong L-pro

20 April 2020, ISO 800, 16 x 468 sec (+darks,flats,bias)

25 maart 2022, ISO 800, 35 x 600 sec (+darks,bias,flats, darkflats)

Total exposure: 7u 55 min

AstroPixelProcessor + Photoshop

Sharpless Sh2-10 is an emission nebula located in the constellation of Scorpius. It’s very rarely imaged despite being, so to speak, in plain sight between two of the most popular targets in Scorpio-The Lobster (aka The War and Peace ) Nebula and The Cat’s Paw Nebula. It is quite faint but presents interesting structure even when imaged with a small telescope.

This image was constructed with four hours of Ha data acquired with a Sharpstar Z4. 2 hours of colour data was acquired with a William Optics RedCat51. Ha and RGB data was stacked in AstroPixelProcessor. and the stacked images were registered and aligned in APP.

The registered and aligned images were cropped and processed in PixInsight

after gradient extraction with the SetiAstro ADBE script, the RGB image was plate solved and Spectrophotometrically Colour Calibrated.

Blur X was NOT applied on RGB- it was found to create " worms" -artefacts after stretching.

Stars were removed with StarNet ++ and the starless image was stretched with GHS.

A similar process was followed for the Ha data except Blur X was run twice, SPCC was not used (obviously)

After GHS stretching Dark Structure Enhance and Local Histogram Equalisation processes were run

starless RGB and Ha were combined using the combine Ha with RGB script

The resultant image was blurred with light deconvolution and a LRGB image was constructed using the combine LRGB script

Stars were processed using the SetiAstro star stretch script and added to the starless image with Pixelmath

Eastern Veil Nebula (NGC6992), 07/06/2020

Spent the night dodging clouds and I was able to grabs this image in the hour or so of clear skies. This is another part of the same super nova remnant I shot a couple of weeks ago. I had much better data to play with but spent way too much time processing it until I was happy with the results. Happy Astrophotographer is happy.

Equipment:

RASA 8

CGEM-dx mount

ZWO ASI294MC-Pro

ZWO Asiair Pro

Optolong L-eHhance filter

Details:

Location – My back yard in Tacoma WA

Bortle Class 8

Gain 120

60 60-second Lights

60 Darks

60 Bias

60 Flats

Astro Pixel Processor

Lightroom

Photoshop

#astrophotography #astronomy #comos #nightphotography #space #telescope #deepsky #asi294mcpro #amateurastronomy #backyardastronomy #asiair #rasa #celestron #astropixelprocessor #optolong #telescope #astronomyphotography #deepskyobject #zwo #longexposurephotography #ngc6992 #veilnebula

GSO Newton telescope 800 / f4 on EQ6-R-Pro

Camera ZWO ASI294MC pro, met OAG, filter :Optolong LPro

30 sep 2022, Gain 120, at -20°, 2 x 60 sec en 14 x 300 sec (+darks,bias, flats)

Total exposure: 1u 02 min

AstroPixelProcessor + Photoshop

Dirk Van Luyten – Molezon – France

GSO Newton telescope 800 / f4 on EQ6-R-Pro

camera Canon Eos 550d

27 maart 2020, ISO 800, 13 x 354 sec

Camera Canon Eos 80d not modified, filter : Optolong L-enhance

7 Maart 2020, ISO 800, 21 x 400 sec

Total exposure: 3u 36 min

AstroPixelProcessor + Photoshop

NGC-7635 la Bubble Nebula, nella costellazione di Cassiopea al confine con il Cefeo, dista a 11.000 anni luce dalla Terra, Galassia di appartenenza Via Lattea.

La sua caratteristica principale è una "bolla" di vuoto circondata da una nebulosa, visibile con potenti strumenti nella zona meridionale dell'oggetto, causata dal vento stellare della giovane stella centrale, di magnitudine 8,7.

In basso più a sx si trova l'ammasso aperto M-52.

Setup SkyWatcher eq5 goto, rifrattore Svbony SV503 80ed f/7 camera Asi2600 mc-pro, filtro Optolong L-Enhance, spianatore Tecnosky 1x, teleguida 60x240 camera guida Asi120mm

Light 69x600" più Dark Flat DarkFlat e Bias

Tot. Integrazione ore 11:30

Acquisizione: tramite dispositivo Raspberry, os Stellarmate, software Kstars.

Software: Somma tramite AstroPixelProcessor, elaborazione tramite Pixinsight.

Bortle 7.2

Cieli sereni.

Technical data:

Remote Observatory "FarLightTeam"

Team: Marc Valero, José Esteban, Jesús M. Vargas, Bittor Zabalegui.

Telescope: Takahashi FSQ106 ED 530mm f/5

CCDs: QSI683 wsg8

Filters: Baader Planetarium - LRGB

Mount: 10Micron GM1000 HPS

Imaging Software: Voyager

Processing Software: PixInsight-AstroPixelProcessor

Imaging Data:

Captured Between February 1 to April 30, 2022 in 6 sessions due to bad weather.

( Fregenal de la Sierra ) Badajoz, Spain.

Hosting "E-EYE Entre Encinas y Estrellas"

Image composed of:

Luminance 54 x 900" .....13,5 hours

RGB 28x300" on each channel ..... 7 hours

Total ....20,5 hours

Darks, flats, bias

Technical explanation of objects :

The Virgo cluster is a cluster of galaxies located approximately 59 ± 4 million light-years away in the direction of the constellation Virgo. It contains some 1,300 known galaxies, although there may be as many as 2,000, and forms the central region of the Local Supercluster, in which the Local Group is also found. Its mass is estimated to be 1.2×1015 MS up to about 8 degrees from the center of the cluster, which is equivalent to a radius of about 2.2 Mpc.3

Many of the bright galaxies in this cluster, including the giant elliptical galaxy Messier 87, were discovered in the late 1770s and early 1780s and later included in Charles Messier's catalogue. Described by Messier as starless nebulae, their true nature would not be discovered until the 1920s.

The cluster subtends a maximum arc of about 8 degrees centered on the constellation Virgo, and many of its galaxies can be seen with an amateur telescope. Its brightest member is the giant elliptical galaxy M49, but the most notable and famous is the galaxy M87, located in its center.

In the center of the image we show we have NGC 4435 and NGC 4438, also known as the Eye Galaxies or Arp 120, they are two galaxies in the Virgo Cluster, about 52 million light years from our galaxy, also visible with amateur telescopes.

NGC 4435:

NGC 4435 is a barred lenticular galaxy showing a ring of dust around the nucleus. Through studies carried out with the Spitzer telescope, a young stellar population has been detected in its center, which indicates that 190 million years ago it suffered a stellar outbreak perhaps caused by an interaction with NGC 4438, and almost all of its hot gas, according to studies. made in X-rays with the Chandra telescope, is concentrated in its central region. It also seems to have a long tail that was also thought to be produced by this event, but which is actually a system of dust clouds in our galaxy that is totally unrelated to NGC 4435.

NGC 4438:

NGC 4438 is a hard-to-classify galaxy that has been classified as both a spiral galaxy and a lenticular galaxy, which explains its inclusion in Halton C. Arp's Atlas of Peculiar Galaxies. It is one of the most notable galaxies in the cluster due to its highly distorted appearance, which shows that it is undergoing or has undergone gravitational interactions, and for the unknown mechanism that causes its central region to show activity, and that it has expelled opposing gas loops at one the other. A starburst, a black hole, or an active galactic nucleus has been thought of, and all possibilities are under investigation. It also shows a low content of neutral hydrogen, perhaps due to its friction with the hot gas that fills the intergalactic medium of Virgo or with the corona of hot gas that surrounds the nearby galaxy M86 and/or due to having been torn away by gravitational attraction. of some galaxy with which it was about to collide (perhaps M86 itself), in addition to a displacement of the different components of its interstellar medium (neutral hydrogen, molecular hydrogen, hot gas, and interstellar dust, which reaches up to a distance of 4-5 kiloparsecs from its disk) in the direction of NGC 4435 -which tends to be attributed, however, to friction with the aforementioned intergalactic medium-, and finally traces of having undergone several bursts of star formation.

A pair of interacting galaxies?

NGC 4435 and NGC 4438 have been and are considered by numerous authors to be a pair of interacting galaxies, having calculated that the two galaxies came close 100 million years ago to just 16,000 light years from each other. In any case, and despite the strong evidence in favor of an interaction between the two, other scientists have expressed doubts as to whether the two galaxies are actually interacting despite their apparent proximity, since their redshifts are different and NGC 4435 is barely visible. has suffered the effects of such interaction. It has also been speculated that NGC 4438 may actually be two galaxies merging, having nothing to do with NGC 4435, which has interacted in the past with M86 (to which it seems to be joined by filaments of gas and in which it is detected certain amount of interstellar dust and atomic and ionized hydrogen that seems to come from NGC 4438, which reinforces this possibility) causing the peculiarities observed in it, that the three mentioned galaxies have interacted with each other, and even that NGC 4438 may be being torn apart by the gravity (tidal forces) of M87, which is only 58 arcminutes away from it (and seems to have gotten as close as 300 kiloparsecs).

14 hours total exposure in the light of hydrogen and oxygen. GSO 8" f/8 RC OTA, ZWO ASI2600MM Pro cooled monochrome CMOS camera, SVBONY H-alpha 7nm filter, SVBONY [O III] 7nm filter, Losmandy GM811G mount, ZWO ASIAir Plus controller, auto-guided. Processed in Astro Pixel Processor, Lightroom, Photoshop

GSO Newton telescope 800 / f4 on EQ6-R-Pro

Camera ZWO ASI294MC pro, met OAG, filter :Optolong LPro

25 sep 2022, Gain 120, at -20°, 21 x 300 sec (+darks,bias, flats)

Total exposure: 1u 45 min

AstroPixelProcessor + Photoshop

Dirk Van Luyten – Molezon – France

Ha 5nm - About 10 hours

S2 3nm - About 9:5 hours

Channel combination

R = 0.7*Ha + 0.3*S2

G = Faux Hb

B = Faux Hb

Faux Hb = 0.3*Ha

iOptron CEM40EC

William Optics 1000mm Mortar Tri-pier

Askar FRA400 Quintuplet F/5.6

ZWOASI183MM-Pro

ZWO120MM Mini

ZWO OAG

ZWO ASIAir Pro

ZWO EAF

ZWO EFW

Chroma Filters

B9 Site in Miami

Stacked on AstroPixelProcessor

Processed on PixInsight

20 Flats for each session

50 Dark Flats for each session

20 Darks

50 bias

IC1805 is part of a large complex of nebulosity in the constellation of Cassiopeia. The name Heart Nebula clearly comes from its shape. It is about 7500 light years away. The open cluster of stars in the centre is catalogued as Melotte 15. The red colour of the Heart Nebula is driven by the radiation from Melotte 15. This cluster contains a few bright stars nearly 50 times the mass of our Sun.

It was a clear night last night and this image was from thee and a half hours observation with my ZenithStar 81 telescope.

In this picture are: Heart Nebula, LBN 655, LDN 1366, LBN 648, LBN 650, LBN 647, LDN 1369, LDN 1367, LDN 1372, LDN 1368, LDN 1364, CL TOMBAUGH 4, LDN 1361, LDN 1363, LDN 1365, LDN 1371, CED 7 and LDN 1362

~~~~~

Telescope: William Optics ZenithStar 81 APO

Mount: SkyWatcher EQ6-R Pro

Controller: ZWO ASIAIR Plus 256G

Main Camera: ZWO ASI533MC Pro at -10C

Filter: Optolong L-eNhance filter

Focuser: ZWO EAF

Guide Camera: ZWO ASI174MM Mini guidecam

Guide via: ZWO OAG

Stacked from:

Lights 68 at 180 seconds, gain 101, temp -10C

Darks 30 at 180 seconds, gain 101, temp -10C

Flats 30 at 14.6 seconds, gain 101, temp -10C

Dark Flats 30 at 14.6 seconds gain 101 temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor.

Processed in PixInsight

Added captions in Photoshop CS4

M13 Herculesbolhoop

GSO Newton telescope 800 / f4

camera ZWO 294 Mc-Pro on EQ6-R-Pro, OAG, filter: Optolong L-Pro

23 Feb 2022, Gain: 120, 10 x 300 sec., binning: 1 x 1, at temp:-10°

Camera Canon Eos 80d not modified on EQ6-R-Pro, filter : Optolong L-Pro

06 Maart 2022, ISO 800, 20 x 400 sec

12 April 2021, ISO 800, 15 x 300 sec

13 April 2021, ISO 800, 18 x 300 sec

Total exposure: 5u 48 min

AstroPixelProcessor + Photoshop

About 3 hours total HA. Planning to capture more when the weather is clear again.

Chroma 3 nm filter.

ZWO ASI6200 camera.

AstroPhysics AP155 EDFS refractor.

5 minute subs.

Acquired with NINA and processed with AstroPixelProcessor and Photoshop.

M16 viene anche chiamata Nebulosa Aquila , ha un’estenzione di circa 80 a.l. e dista da noi circa 5700 anni luce, essa si trova nella costellazione del Sagittario e contiene alcune formazioni estremamente conosciute, come i Pilastri della Creazione, le lunghe colonne di gas oscuro originate dall’azione del vento stellare delle componenti dell’ammasso centrale e che sono responsabili anche del nome proprio della nebulosa stessa, a causa della loro forma.

Setup, Skywatcher Heq5 goto, Svbony 102ed, camera Asi2600mc pro, filtro Optolong L-extreme, camera guida Asi224mc teleguida 60/240.

Light 170x300” più Dark, Flat e DarkFlat, tot. Integrazione ore : 14:10.

Software di acquisizione Ekos su dispositivo Raspberry OS StellarMate.

Software di elaborazione AstroPixelProcessor, Pixinsight e Photoshop.

Bortle 7.2 Cieli sereni 😎

For the first time in months I was able to set up my telescope and do a bit of stargazing. This time I set up my Zenithstar 81 refracting telescope. It has a wider field of view than my Celestron C11. Once I had everything set up and calibrated I found Markarian's Chain of galaxies in the constellation of Virgo to be a good target for the night and spent three hours soaking up the image.

There is a whole string of different galaxies laid out in a curved line. The two largest are the Messier objects M84 and M86 but there is a whole host of other galaxies in this area.

Near the heart of the Virgo Galaxy Cluster the string of galaxies stretches across this view. In the frame at top centre are the prominent lenticular galaxies, M84 and M86, you can follow the chain down and to the left. Its centre is an estimated 50 million light-years away making it the nearest galaxy cluster. With up to about 2,000 member galaxies, it has a noticeable gravitational influence on our own Local Group of Galaxies.

~~~~~

Controller: ZWO ASIAIR Plus

Main Camera: ZWO ASI533MC Pro at -10C

Filter: Optolong L-Pro filter

Focuser: ZWO EAF

Guide Camera: ZWO ASI290MM Mini guidecam

Guidescope: William Optics Refractor 50/200 mm 50mm

Telescope: William Optics ZenithStar 81 APO

Mount: SkyWatcher EQ6-R Pro

Stacked from:

Lights 64 at 180 seconds, gain 101, temp -10C

Darks 30 at 180 seconds, gain 101, temp -10C

Flats 30 at 2.8 seconds, gain 101, temp -10C

Dark Flats 30 at 2.8 seconds, gain 101, temp -10C

Bortle 4 sky.

Integrated the saved frames in Astro Pixel Processor processed in PixInsight and titles added in Photoshop CS4.

La Nebulosa Elica o Occhio di Dio (NGC 7293) è uno degli esempi più spettacolari di nebulosa planetaria, creata da una stella morente che un tempo era simile al Sole. La nube ha una geometria sorprendentemente complessa, che include filamenti radiali, anelli esterni e addensamenti gassosi di ignota origine. Quando il combustibile necessario per le reazioni di fusione nucleare si esaurisce, le stelle di massa medio-piccola vanno incontro alla fine della loro vita gloriosa, espellendo gli strati gassosi esterni e lasciandosi dietro un nucleo denso e caldo, una nana bianca, Il puntino bianco visibile al centro della nube è proprio la densa nana bianca.

Setup, Skywatcher Heq5 goto, Svbony 102ed, camera Asi2600mc pro, filtro Optolong L-extreme, camera guida Asi224mc teleguida 60/240.

Light 75x300” più Dark, Flat e DarkFlat

Tot. integrazione ore 6:15

Software di acquisizione Ekos su dispositivo Raspberry OS StellarMate.

Software di elaborazione AstroPixelProcessor, Pixinsight.

Bortle 7.2

Cieli sereni 😎

M101, o NGC 5457 è conosciuta anche come la Galassia Girandola, nome, che le deriva dalla sua conformazione a spirale, si trova nella costellazione dell'Orsa Maggiore. A 19 milioni di anni luce di distanza,in condizioni eccellenti, M101 può essere osservata anche con un semplice binocolo; infatti, grazie alla sua estensione e alla sua relativa vicinanza a noi, M101 è una delle galassie più brillanti del cielo. Setup Skywatcher Heq5-pro goto, telescopio Svbony 102ed, camera Qhy183 filtro Svbony CLS, camera guidaAsi120-mm, teleguida 60/240. Software di acquisizione Ekos su Raspberry e OS StellarMate. Light 65 da 240” Light 233 da 300” Più Dark, Flat e DarkFlat Tot. Integrazione ore 23:45 Software di elaborazione AstroPixelProcessor e Pixinsight Bortle 7.2. Cieli Sereni

camera ZWO 294 Mc-Pro on EQ6-R-Pro, OAG, filter: Optolong L-Pro

22 Feb 2022, Gain: 120, 24 x 300 sec., binning: 1 x 1, at temp:-10°

Total exposure: 2 hr.

AstroPixelProcessor + Photoshop

NGC2237 (Rosette Nebula) - SHO

Data Acquisition:

12/13/2020 - Ha 5nm 36x300s

12/14/2020 - O3 3nm 44x300s

12/15/2020 - S2 3nm 48x300s

Total Integration 10hours and 40 minutes

iOptron CEM40EC

William Optics 1000mm Mortar Tri-pier

Askar FRA400 Quintuplet with 0.7 reducer at F/3.9

ZWOASI183MM-Pro

ZWO120MM Mini

ZWO OAG

ZWO ASIAir Pro

ZWO EAF

ZWO EFW

Chroma Filters

B9 Site in Miami

Stacked on AstroPixelProcessor

Processed on PixInsight

20 Flats for each session

50 Dark Flats for each session

20 Darks

50 bias

M51 Draaikolkstelsel – Feb 2022

GSO Newton telescope 800 / f4, camera ZWO 294 Mc-Pro on EQ6-R-Pro, OAG, filter: Optolong L-Pro

11 Feb, Gain: 120, 24 x 300 sec., binning: 1 x 1, at temp:-10°

AstroPixelProcessor + Photoshop

Dirk Van Luyten – Zoersel – Belgium

M51 Draaikolkstelsel – Feb 2022

Cropped

GSO Newton telescope 800 / f4, camera ZWO 294 Mc-Pro on EQ6-R-Pro, OAG, filter: Optolong L-Pro

11 Feb, Gain: 120, 24 x 300 sec., binning: 1 x 1, at temp:-10°

AstroPixelProcessor + Photoshop

Dirk Van Luyten – Zoersel – Belgium

The Cone Nebula (NGC 2264), 03/19/2020

Now I like a lot more then I thought I would! It is a really small target for my current setup and I did not think I could capture enough detail in the short amount of time I was able to spend collecting photons. But I wanted to see how the new telescope would do. I did crop it in a bit to make it look bigger in the frame. But damn it looks cool AF.

The Cone Nebula (or the Christmas Tree Nebula in December 😉) is an emission nebula found in the Monoceros Constellation. The cone shape is a cloud of cold hydrogen gas and dust blocking the light of the star S. Monocerotis which is the brightest star in this image. The cone is about seven light-year long and sits around 2,700 light-years from my telescope.

Equipment:

RASA 8

CGEM-dx mount

ZWO ASI294MC-Pro

ZWO Asiair

Details:

Location – My back yard

Bortle Class 8

37 120-second Lights

60 Darks

60 Bias

60 Flats

Deep Sky Stacker

Astro Pixel Processor

Lightroom

Photoshop

#astrophotography #astronomy #comos #nightphotography #space #telescope #deepsky #asi294mcpro #amateurastronomy #backyardastronomy #asiair #rasa #celestron #astropixelprocessor #telescope #astronomyphotography #conenebula #ngc2264

M33 : De driehoeknevel

GSO Newton telescope 800 / f4 on EQ6-R-Pro

Camera ZWO ASI294MC pro, met OAG, filter :Optolong L-Extreme

13 nov 2022, Gain 120, at -20°, 78 x 300 sec (+50 darks, 100 bias, 50 flats)

Camera Canon, EOS 80D, met OAG, filter : Optolong L-pro

3 sept 2021, ISO 800, 14 x 600 sec ( + 16 darks, 34 bias, geen flats)

21 sept 2020, ISO 800, 34 x 480 sec ( + 26 darks, 31 bias, geen flats)

Total exposure: 13u 22 min

AstroPixelProcessor + Photoshop + lightroom

Dirk Van Luyten – Zoersel – Belgium

Old crescent Moon, 13 October, about 32 hours before New Moon and the annular solar eclipse. GSO 8" f/8 (1624mm FL) RC OTA, ZWO ASI2600MM Pro cooled monochrome CMOS camera, ZWO ASIAir Plus controller, auto-guided.

Processed in Astro Pixel Processor, Lightroom, Photoshop.