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M42 in Orion.
31 minutes exposure.
Skywatcher Esprit 120 telescope.
ZWO ASI 071 camera.
Taken in SW Sydney, 7th November 2019, prior to the arrival of mega-bushfires which precludes any astro-photography by me for the foreseeable future.
The virtually 50% illuminated moon in hazy skies due to high cloud, during the morning of the 21.10.19. A favourable libration is revealing a tantalising glimpse of the Mare Orientale on the western limb below left of dark crater Grimaldi.
Imaged with a Skywatcher Esprit 120mm refractor and a Nikon D5300
Equipment:
Scope: Lacerta 72/432 F6 0.85x reduktorral (367mm F5.1)
Mount: Skywatcher EQ-5 Pro Synscan Goto
Guiding: OAG
Guide camera: ZWO ASI120mm Mini
Main camera: ZWO ASI183MM-Pro cooled monochrome camera
Accessories:
ZWO ASIAIR Pro
ZWO EFW 8x1.25"
ZWO EAF
ZWO OAG
ZWO 1.25 Helical focuser
Lacerta Dew-heater 30cm
Programs:
PixInsight
Adobe Photoshop CC 2020
Details:
Camera temp: -15°C
Gain: 53
Astronomik L-3 UV-IR Block: 151x180s
Astronomik Deep-Sky R: 20x180s
Astronomik Deep-Sky G: 20x180s
Astronomik Deep-Sky B: 20x180s
Bortle Scale: 4
Location: Isaszeg, Hungary
Acquisition date(s):
2021.02.13., 2021.02.14., 2021.02.15., 2021.02.17.
OTA: Newtonian Celestron 130 mm/f5 modified
Mount: Skywatcher Heq 5
Imaging Camera: Canon 700D astro modified
Telescope Guide: Gso 50mm
Camera Guide: QHY5L II Mono
Baader Mk III Coma Corrector
Polemaster Eletronic Polar Scope
Total Exposure: 5:40 hours (subs 300 sec)
Deep Sky Stacker: Calibration and stacking
Adobe Photoshop Cs2 : Data Processing, Plug-in: Hasta la vista, green;
astroflat pro
PHD Guiding 2: Guide
Darks, Dark Flats, Flats and Bias apply
Serra Negra ( Bortle 4) /São Paulo/Brasil . may/2021
I had only recently purchased some narrow-band filters and was keen to give them a test run; for this, I chose NGC281. The aim was initially to capture data in LRGB along with Ha, OIII, and SII; the telescope and weather had other plans. I hadn’t looked at the data since the initial night, and using a process in Pixinsight inspired by Cuiv’s recent mastering Pixinsight YouTube video, I was able to bring together this HOO image of the nebula; it is a target that I plan to revisit this winter to capture more Ha and OIII, along with LRGB and SII data.
NGC 281, IC 11 or Sh2-184 is a bright emission nebula and part of an HII region in the northern constellation of Cassiopeia and is part of the Milky Way’s Perseus arm. This 20×30 -sized nebulosity is also associated with open cluster IC 1590, several Bok globules and the multiple star B 1. It collectively forms Sh2-184,[3]spanning over a larger area of 40 arcmin.[4] A recent distance from radio parallaxes of water masers at 22Ghz in 2014 is estimated to be 2.82±0.20 kpc. (9200 ly.) from us.[5] Colloquially, NGC 281 is also known as the Pacman Nebula for its resemblance to the video game character. Source: Wikipedia
Imaging session: December 1st, 2023
Sky quality: Bortle 5 (approx.)
Mount: iOptron CEM40G
OTA Imaging: Skywatcher 120ED with x0.85 flattener, f6.35, 768mm
Camera: ZWO ASI533MM Pro, Cooled to -10 deg C
Filter Wheel: ZWO EFW
Focuser: Primaluce Lab ESATTO
Rotator: Primaluce Lab ARCO
Guiding: iOptron iGuide, 120mm: 2.9um
Computer: Primaluce Lab Eagle Pro 2 + ECCO2 (Environment)
Light Exposures:
Luminescence .. 10 x 90s
Ha........... 9 x 300s
OIII......... 9 x 300s
Calibration files:
BIAS .......... 25
Dark .......... 25
Flat .......... 25
Dark flat ..... 25
Total integration time: 1.75 hours
Processing
Pixinsight -> Topaz Denoise -> Photoshop
Center (RA, Dec): (12.999, 56.667)
Center (RA, hms): +56° 40' 01.687"
Center (Dec, dms): 00h 51m 59.764s
Size: 47.8 x 47.7 arcmin
Radius: 0.563 deg
Pixel scale: 2.02 arcsec/pixel
Plate solved at nova.astrometry.net
Same data as last image, but reprocessed and cropped.
SKYWATCHER ED80, QHY163M - Optolong LRGB, 5min luminance x nearly 2hrs total luminance, with 2min RGB x approx 6 each filter.
Shooting a few frames here and there adding to the luminance data.
Skywatcher Evostar Pro 80 ED (w/.85x reducer/corrector & QHYCCD Polemaster), Skywatcher EQM-35, Nikon D3300.
35 lights x 90 s @ ISO 800, ~45 dark, ~45 flat, ~100 bias, stacked in DSS and post-processed in Photoshop.
Wildfire Smoke and High Temperatures haven't allowed for many clear nights recently, but I was able to squeeze in some time to gather enough lights for this one.
New Version of Bode´s and Cigar Galaxy.
Combined Lights of 3 Nights
146 x 90s
52 x 120s
plus Darks, Flats, Bias
Sony a6000a
Skywatcher 150/750 PDS
Another RE Edit of some old data from July 2021 . Carina nebula or Eta Carinae Nebula . Shot with Canon 5Dsr on a Skywatcher Quattro 250P Telescope. 15 x 55 second exposures stacked with Calibration frames . There is so much to see in this area of the sky , I will probably do some crops of this image to zoom in on all the different areas .
NGC 6559 is a star-forming region located about 5000 light-years from Earth. It is in the constellation of Sagittarius, and shows both emission and reflection regions.
This is a reprocess of older data taken back in 2018 using some new noise reduction techniques.
Equipment Details:
•Skywatcher ED80 80mm F7.5 600mm Focal length
•Skywatcher HEQ5 Mount
•SBIG ST2000xm CCD Camera cooled to -10'c
•SBIG CFW9 Filter Wheel
•Astronomik 1.25" mounted Ha, Red, Blue and Green Filters
•Orion ST80 80mm Guide Scope
•Orion Starshoot Autoguider
Exposure Details: (HOO Combination
•Ha 25X300 seconds - Bin 1x1
•Red 13X300 seconds - Bin 1x1
•Green 10X300 seconds - Bin 1x1
•Blue 10X300 seconds - Bin 1x1
Total Integration Time: 4 hours 50 mins
en.wikipedia.org/wiki/Gabriela_Mistral
The nebula is Named after the Chilean Poet when you see the photo in the link above you can miss the profile in the side. small part of the huge Carina nebula that is only seen in the Southern skies this is three nights worth of shots 41 Shots each night.
QHY 183C -10c 41 shots each night 10 min each over Three nights..
MeLE Mini PC
Pegasus Astro Pocket Mini power box
Prima Luce Essato Focus
Optolong LeNhance filter,
Skywatcher Black DiamondED80 OTA
Skywatcher NEQ 6 Pro Hypertuned
SVbony 50MM Guide scope
QHY QHY5L-II-M Guide camera
Guided PHD2, Nina
Pixinsight, Ps .
Located in the Grus Constellation, the Grus-Quartet consists of four large spiral galaxies which are relatively close to each other. In this crop, the 4th galaxy NGC7552 is not visable. The galaxies are estimated to be between 55 and 70 millions light-years away from Earth.
Equipment Details:
•8 Inch Skywatcher Quattro Carbon Fibre F4.0 Newtonian Reflector
•Skywatcher NEQ6 Mount
•SBIG ST 2000xm CCD Camera cooled to -20'c
•SBIG CFW8 Filter Wheel
•Custom Scientific Lum, Red, Green, Blue Filters
•SKywatcher BD 102mm Guide Scope
•Meade DSIii CCD Guide Camera
•Polemaster for polar alignment
Exposure Details:
•Lum 33X180 seconds - Bin 1x1
•Red 14X180 seconds - Bin 1x1
•Green 14X180 seconds - Bin 1x1
•Blue 15X180 seconds - Bin 1x1
Total Integration Time: 3 hours 48 Mins
This is a reanalysis of an image of the 20 million light-year distant galaxy M106 in Canes Venatici, acquired during the night of 1st - 2nd April 2021.
This time I used PixInsight to process and annotate the image as well as Astropixel Processor.
Imaged with a Skywatcher Esprit 120ED Triplet Apo and a ZWO 2600MC camera.
100x120s
Darks, Flats & Dark Flats.
NGC 6744 55 x minutes of data taken with QHY 183C PRO on a Sky Watcher Quattro 250 P scope. NGC 6744 is an intermediate spiral galaxy about 30 million light-years away in the constellation Pavo. It is considered as a Milky Way mimic in our immediate vicinity, displaying flocculent arms and an elongated core. Wikipedia
Canon eos 600D modificada y refrigerada.
Skywatcher150/750 pds.
Skywatcher Neq6 proII.
guiado con Celestron 130/650 + zwo asi 290mc.
19x300s + darks
Equipment:
Scope: Lacerta 72/432 F6 0.85x reduktorral (367mm F5.1)
Mount: Skywatcher EQ-5 Pro Synscan Goto
Guide scope: OAG
Guide camera: ZWO ASI120mm Mini
Main camera: ZWO ASI183MM-Pro cooled monochrome camera
Accessories:
ZWO ASIAIR Pro
ZWO EFW 8x1.25"
ZWO OAG
ZWO 1.25 Helical focuser
Lacerta Dew-heater 30cm
Programs:
PixInsight
Adobe Photoshop CC 2020
Details:
Camera temp: -15°C
Gain: 53
Astronomik 6nm Ha: 28x300s
Astronomik Deep-Sky R: 6x300s
Astronomik Deep-Sky G: 6x300s
Astronomik Deep-Sky B: 6x300s
Dark: 60x
Bias: 100x
Flat: 20x
Dark_flats: 20x
Reasonably clear skies on the night of 19-20 March allowed me to try to image NGC 2403 in the constellation of Camelopardalis.
This is my first attempt at imaging this system.
The galaxy lies at a distance of around 8-9 million light-years from us. The galaxy was discovered by William Herschel in 1788 and is an intermediate spiral system.
The galaxy bears a striking resemblance to its more illustrious colleague, M33 The Triangulum Galaxy, having the same somewhat flocculated appearance but also a plethora of pinkish-reddish star forming HII regions.
The galaxy is considerably larger than M33 making it one of the largest HII regions observable.
Imaged with a Skywatcher Esprit 120mm telescope with dedicated field flattener.
70x300s exposures calibrated with temp. matched darks, Flats and Dark Flats
Heart Nebula with Melotte 15
45 x 600s
ASI 2600 MC Pro
Skywatcher 150/750 PDS
Optolong L-Extreme 2"
Asiair Pro
Zwo OAG
ASI 120 Mini
IC1340 - Die Knochenhand (östlicher Cirrusnebel)
ASI 2600 MC Pro - Skywatcher 150/750 PDS - Optolong LExtreme - Asiair - Guiding Mgen II
40 x 600s - Gain 100 bei -10 Grad
50 x Darks - Flats - Bias
Scope=Skywatcher 130/900
Camera=QHY5LII-M
Barlow: Televue 3x
UT=18:33:54
Location: Vironas, Athens, Greece
Skywatcher Evostar Pro 80 ED (w/.85x reducer/corrector & QHYCCD Polemaster), Skywatcher EQM-35, Nikon D3300.
120 lights x 90 s @ ISO 800, ~45 dark, ~45 flat, ~100 bias, stacked in DSS and post-processed in Photoshop.
IC1848 emission nebula located in Cassiopeia.
Processed in Hubble palette colours.
Skywatcher 100ED
Canon 700d
Celestron CGEM DX
14x180s (42 mins) ISO800
Processed in PixInsight
10328px x 6833px
Resolution ............... 0.797 arcsec/px
Rotation ................. 90.001 deg
Observation start time ... 2023-01-21 21:29:28 UTC
Observation end time ..... 2023-01-21 22:31:41 UTC
Focal distance ........... 554.90 mm
Pixel size ............... 2.15 um
Field of view ............ 2d 17' 14.8" x 1d 30' 48.1"
Image center ............. RA: 2 53 17.192 Dec: +60 26 17.38 ex: +0.053614 px ey: -0.001726 px
NGC 6334 in Scorpius
-----------------------------------------
Diameter: 30 light years.
Distance: 3,300 light years.
Apparent size: 31.0 arc min
-----------------------------------------
Field of View: 77.4′ x 51.6′
Exposure: 72 min (120 sec x 36)
Image Date: 2021-05-31
-----------------------------------------
Telescope: SkyWatcher Esprit 120
840 mm f/l @ f/7
Imaging camera: ZWO ASI 071
-----------------------------------------
Equipment:
Scope: Lacerta 72/432 F6 0.85x reduktorral (367mm F5.1)
Mount: Skywatcher EQ-5 Pro Synscan Goto
Guide scope: Lacerta 72/432 F6
Guide camera: ZWO ASI120mm Mini
Main camera: ZWO ASI183MM-Pro cooled monochrome camera
Accessories:
ZWO ASIAIR Pro
ZWO EFW 8x1.25"
ZWO EAF
ZWO OAG
ZWO 1.25 Helical focuser
Lacerta Dew-heater 30cm
Programs:
PixInsight
Adobe Photoshop CC 2020
Details:
Camera temp: -15°C
Gain: 53, 111
Astronomik 6nm Ha:
28x300s
15x30s
10x60s
Astronomik Deep-Sky G:
5x300s
10x30s
Astronomik Deep-Sky B:
6x300s
10x30s
Dark: 60x
Flat: 20x
Dark_flats: 20x
Have not been very well lately and unfortunately it is ongoing. So haven't been about.
I did managed to get some imaging done this month (weather has been hopeless as usual - so not helping!)
This is an image of the emission nebula, "The Great Orion Nebula" M42, with the attendant reflection nebula "The Running Man" Sharpless Sh2-279 to the right. Both these beautiful systems are found in the sword area of the magnificent constellation of Orion.
M42 is one of the brightest nebula in our skies, lying at a distance of over 1300 light years. This massive cloud of glowing gas and dust is a stellar nursery and is the closest massive star forming region to earth.
The Running Man Nebula to the right is so-called because many observers liken its appearance to a human running with arms flailing! (you might need to use a bit of imagination!) This is a reflection nebula. This means it is only visible to us because light from an illumination source, such as embedded stars, lights up the surrounding gas and dust.
Extensive dust clouds can be seen throughout the whole image.
Imaged with a Skywatcher Esprit 120ED refractor fitted with a focal reducer (scope at f5.4) and a ZWO 2600MC camera.
115 (60s) and 10 (10s) guided exposures.
Temp. matched Darks
Flats, Dark Flats.
Processed using Astro Pixel Processor and finished with Photoshop 2022.
First attempt with starless layers to bring more details, depth and structure in the nebulas
Canon EOS 6Da | Canon EF 200mm f/2.8L
Skywatcher HEQ5 Pro | Lacerta M-GEN | Finderscope 9x50
25x 300sec | ISO800
Flats, Bias, no filters used
My Astrobin My 500px My Facebook
© Claus Steindl
26th May 2021
Image Gallery
The Moon passes through Earth's shadow.
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ZWO ASI 071 camera
Skywatcher Esprit 120 telescope
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This is an image of The Sunflower Galaxy. Located in the constellation of Canes Venatici the galaxy lies at a distance of around 27 million light-years.
Discovered by Pierre Méchain in 1779 the galaxy was catalogued by Charles Messier as M63 in his catalogue. It is also known as NGC 5055.
The Sunflower Galaxy is an example of a flocculent spiral. Instead of well-defined spiral arms it appears to have many discontinuous arms giving a loosely lumped appearance hence the name.
A large, prominent dark dust lane is also visible at the front margin of the Sunflower.
Imaged with a Skywatcher 120ED Triplet Apo fitted with a field flattener. Images were captured with a ZWO 2600MC camera.
A total of 5.8hrs guided exposures during the night of 1-2 April. An annoying breeze during capture caused some guiding issues but you take what you get here!
Calibrated with temp. matched Darks, Dark Flats and Flats.
Thanks for looking!
Had to be quick to capture the beautiful sight of a blazing Venus paying a close visit to the Pleiades star cluster this evening.
Thick cloud invaded shortly after this image was taken as the sky was beginning to darken. Neighbour's tree also a problem!
Imaged with a Nikon D5300 and a Skywatcher ED72 refractor on an EQ6 pro mount. A single 20" image unguided.
A somewhat curtailed (very frustrating!) imaging session yielded this image of the iconic Great Orion Nebula M42.
Lying just over 1300 light years distant M42 is one of the brightest nebula and is visible as a fuzzy patch lying below Orion's belt as the middle "star" in Orion's sword.
This is only my second light with my new ZWO 2600MC camera and the forecast for 10th February looked good here - how wrong it was....
I only managed to get 7 usable subs of 1min each in the bitter cold before cloud and snow flurries ended my efforts!
Pretty pleased with what I was able to acquire with 7 subs including a satellite trail along the bottom (perhaps Courtesy of Mr Musk.....)
Hopefully I will get a much longer session with this camera soon.
Imaged with a guided Skywatcher Esprit 120ED fitted with a field flattener and a ZWO 2600MC camera.
I used a basic Skywatcher light pollution filter in the train.
Bortle 6 sky.
Processed with Astropixel Processor and Photoshop 2021.
7x60s (Total Integration 7mins)
Gain 100
Offset 50
Darks & Flats.
I captured this close-up of Comet C/2020 F3 (NEOWISE) 3 days before its closest approach to Earth.
If you have asked yourself why Neowise had two tails, you might be interested in the following explanation:
The upper, blue tail is called the ion tail. It points directly away from the Sun and is pushed out by the charged solar wind, along the Sun's magnetic field. The structure in the ion tail comes from different rates at which light emitting ions are expelled from the comet's nucleus and the constantly changing nature of the solar wind.
The lower, white tail consists of dust and reflects the sunlight. The dust tail is pushed out by the Sun's radiation pressure and curves because heavier dust particles are better able to resist this light pressure and continue along a solar orbit. The origin of the wavy structure in the dust tail is not fully understood. Most likely, it is produced by rotating streams of light reflecting dust, expelled by ice melting on its 5-kilometer wide nucleus.
EXIF
Canon EOS 6D
Canon 70-200mm f/2.8 L ll @ 200mm, f/4
Modified Skywatcher AZ-GTI mount
Stack of 106 x 30s @ ISO1600
Processed with PixInsight & Photoshop
Globular Cluster in Sagittarius.
Magnitude: +5.1
Apparent size:32 arc-min (just over one lunar diameter).
Diameter: 97 light years.
Distance:10,000 light years.
Image date: 2020-09-22.
Exposure: 12 frames x 4 minutes = 48 minutes.
Field of View: estimated approximately 35′ x 20′
Skywatcher Esprit 120 telescope.
EQ6-r mount.
ZWO ASI071 camera.
Mount: SkyWatcher HEQ5 Pro
Guiding: ZWO ASI 120MM Mini USB 2.0 Mono Camera - Orion 50mm Guide Scope
Filter: Astronomik CLS CCD EOS APS-C Clip-Filter
Camera: Canon EOS 70D (full spectrum modified)
Askar 80 PHQ F7.5 Quadruplet Astrograph Telescope
Focal length: 600mm
Astronomik CLS CCD Clip Filter
ISO 800 - f7.5
4 hour total Integration (180 sec each frame)
Darks: 20 frames
Flats: 20 frames
Bios: 20 frames
DarkFlats: 20 frames
Bortle 5/6
Apps: N.I.N.A. > PHD2 > ASCOM > EQMOD
PixInsight > Photoshop > StarXTerminator > NoiseXTerminator
SkyWatcher 70mm SK707AZ2 + Filter Thousand Oaks + super 25mm + barlow 2X.
Edited with MS Picture Manager and Photofiltre.
It's possible the 2990, 2991, 2993 and 2994 spots (the last two appear to turn very active in the coming days) this time.
The Eastern Veil nebula is a cloud of heated and ionized gas and dust in the constellation of Cygnus, located at around 1470 light-years from Earth. It is part of the Cygnus Loop which is a 7000 years old, faint supernova remnant, covering roughly 3° on the sky (almost 6 full moons). The red hues in this image are from ionized hydrogen gas clouds, emitting light in the H-alpha wavelength, while the cyan hues are from oxygen ions.
Prints available: ralf-rohner.pixels.com
EXIF
Camera & Filters:
ZWO ASI 1600MM Pro
ZWO EFW / Baader Ultra Narrowband
3,5nm H-alpha
4,5nm Oiii
Telescope:
William Optics Megrez 88 f/5.6
Mount:
Skywatcher AZ-GTI
Camera, Mount & Focus control:
ZWO ASIair
20x 300s H-alpha
20x 300s Oiii
HOO image processing with PixInsight and Photoshop
Here is the final version of these two galaxies, any feedback are welcome!
Equipment:
Scope: Lacerta 72/432 F6 0.85x reduktorral (367mm F5.1)
Mount: Skywatcher EQ-5 Pro Synscan Goto
Guiding: OAG
Guide camera: ZWO ASI120mm Mini
Main camera: ZWO ASI183MM-Pro cooled monochrome camera
Accessories:
ZWO ASIAIR Pro
ZWO EFW 8x1.25"
ZWO EAF
ZWO OAG
ZWO 1.25 Helical focuser
Lacerta Dew-heater 30cm
Programs:
PixInsight
Adobe Photoshop CC 2020
Details:
Camera temp: -15°C
Gain: 53, 111
Astronomik 6nm Ha: 155x300s
Astronomik L-3 UV-IR Block: 132x180s
Astronomik Deep-Sky R: 20x180s
Astronomik Deep-Sky G: 20x180s
Astronomik Deep-Sky B: 20x180s
Bortle Scale: 4
Location: Isaszeg, Hungary
Acquisition date(s):
2021.02.28., 2021.03.02., 2021.03.06., 2021.03.07., 2021.03.08.,
Skywatcher Evostar Pro 80 ED (w/.85x reducer/corrector & QHYCCD Polemaster), Skywatcher EQM-35, Nikon D3300.
165 lights x 90 s @ ISO 800, ~45 dark, ~45 flat, ~100 bias, stacked in DSS and post-processed in Photoshop.
Skywatcher Evostar Pro 80 ED (w/.85x reducer/corrector & QHYCCD Polemaster), Skywatcher EQM-35, Nikon D3300.
125 lights x 90 s @ ISO 800, ~45 dark, ~45 flat, ~100 bias, stacked in DSS and post-processed in Photoshop.
M8 Lagoon Nebula shot with Canon 5Dsr on a Sky watcher Quattro 250 F4 . 36 x 55 second shots stacked. 33 minutes of data.
Bodes Galaxy (M81) and the Cigar Galaxy (M82) are known to form a beautiful pair of galaxies. M81 is strongly interacting with M82 and a third galaxy, named NGC 3077. This galactic trio was the target of this image.
M81 is a spiral galaxy about 12 million light-years away, in the constellation Ursa Major. It is the main galaxy of the 'M81 Group', which includes 60 Galaxies.
M82 is a starburst galaxy and a member of the M81 Group. It is it is about five times more luminous than the whole Milky Way and has a center one hundred times more luminous than our galaxy's center. The starburst activity is thought to have been triggered by interaction with neighboring galaxy M81.
NGC3077 is thr small galaxy on the left and a member of the M81 Group as well. Despite looking much like an elliptical galaxy, it is a spiral galaxy. It shows wispy edges and scattered dust clouds that are probably a result of gravitational interaction with its larger neighbors.
EXIF
Camera: ZWO ASI 1600MM Pro
Telescope: William Optics Megrez 88, f/5.6 (500mm)
Mount: Skywatcher AZ-GTI
Filters: Baader LRGB & H-alpha
3h30min total exposure time
Processing: PixInsight & Photoshop
The Tarantula Nebula (also known as 30 Doradus) is an H II region in the Large Magellanic Cloud (LMC) Taken Dec 21 and just a re edit as I have clouds here ATM.16 x 60 secs. Canon 60D with optolong L Enhance filter on a Skywatcher Quattro 250P F4 Scope.
OTA: Newtonian Celestron 130 mm/f5 modified
Mount: Skywatcher Heq 5
Imaging Camera: Canon 700D astro modified
Telescope Guide: Gso 50mm
Camera Guide: QHY5L II Mono
Baader Mk III Coma Corrector
Polemaster Eletronic Polar Scope
Total Exposure: 06:30 hours (subs 300 sec)
Deep Sky Stacker: Calibration and stacking
Adobe Photoshop Cs2 : Data Processing
Guide: PHD Guiding 2
Darks, Dark Flats, Flats and Bias apply
Serra Negra ( Bortle 4) /São Paulo/Brasil . 06/2019 + 06/2023