View allAll Photos Tagged Sky-watcher
A quick view of a solar prominence today, first light with my ZWO ASI462MC camera and video capture using the latest version of ZWO ASIair 2.0.0(10.23) on my iPhone 10.
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ASI462MC camera, Daystar Quark Chromosphere, ZWO 0.5x Reducer, Celestron CGEM-DX pier mounted, ZWO UV/IR Filter (2”), focus with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using Autostakkert, Registax, and Luminar Neo. Image Date: September 9, 2022. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).
I cropped this from a much larger street sunset...my imagination again, it does appear to me a bit like an ocean and shore taken from a high hill maybe...with mountains in the distance.
Jupiter and Saturn nearing their December 21, 2020 Great Conjunction, with this image taken December 3, 2020 from the Allen Bill flats area on the Elbow River in the Kananaskis Country southwest of Calgary, Alberta.
This is a blend of 4 untracked images for the dark ground, stacked to smooth noise, for 2 minutes each at ISO 400, and two tracked images for the sky for 30 seconds at ISO 1600, all with the 35mm Canon lens at f/2.8 and Canon EOS Ra. A dodge and burn layer created by Lumenzia applied. The tracker was the Sky-Watcher Star Adventurer 2i. Taken before moonrise.
I’ve been wanted to image this section of the sky for some time, this is the Flaming Star Nebula (IC405) and the Tadpole Nebula (IC410). The Flaming Star Nebula is the coma-shaped nebula on the top, the Tadpole Nebula is the large, circular nebula near the center. The open cluster Messier 38 is in the bottom left corner.
From Wikipedia: IC405 is an emission and reflection nebula in the constellation Auriga, surrounding the bluish star AE Aurigae. It shines at magnitude +6.0.
IC410 is a faint and dusty emission nebula of more than 100 light-years across approximately 12,000 light-years away from Earth in the northern constellation of Auriga. NGC 1893, an open cluster, is embedded inside IC410
Tech Specs: Williams Optics Redcat 51 APO, Celestron CGEM-DX mount (pier mounted), ZWO ASI071MC-Pro, Optolong L-eNhance 2” filter, two image mosaic, each image 24 x 300 second exposures at a GAIN of 200, two hour total exposure, guided using a ZWO ASI290MC and Orion 60mm guide scope. Captured using Sequence Generator Pro (SGP) v3.03. Image date: November 25, 2019. Location: The Dark Side Observatory, Weatherly, PA, USA.
2013 IPA One Shot [One World]
"Sky Watcher"
Great to receive two Honorable Mentions in the 2013 IPA One Shot competition in the Professional group, People & Places. I love that my buddy Daniel Sjöström is in it and this is not a typical image from me. Except for loosing my sunglasses and bleeding like crazy from falling off a huge & slippery boulder, this was a great 3+ hour sunset in Sweden. :)) So what's the lesson I learned? Not much. But when in doubt always go to Sweden and bring good shoes! That is all.
Mabry Campbell Photography: Website ⎟ Blog ⎟Facebook ⎟ Google+ ⎟ LinkedIn
White-light solar image captured using a Herschel wedge. I initially thought Sir William Herschel invented the wedge — and it turns out, that’s not far off: he proposed the concept and even used a prism-based diagonal to observe the Sun himself, over 200 years ago. The modern wedge is a refined descendant of his original method.
Herschel didn’t just discover Uranus in 1781 — expanding the known boundaries of the solar system — he also made the first detection of infrared radiation in 1800. While experimenting with sunlight through a prism, he found that the area beyond the red part of the spectrum heated a thermometer the most. That invisible heat turned out to be infrared light — a discovery that forever changed physics and astronomy.
So while I’m simply photographing the visible face of the Sun, I’m doing so using gear that bears the name of someone who once saw beyond the visible, both in terms of the spectrum and the solar system.
The photo shows a seemingly quiet solar disk with just one complex sunspot group near the center. I say seemingly because with the Etalon back in I could see in H-Alpha light there was full party going on!
Comet Wirtanen (46P) moving from Ursa Major to the constellation Lynx on January 11, 2019.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Canon 6D stock camera, ISO 3200, 10 x 60 second exposures. Image date: January 11, 2019. Location: The Dark Side Observatory, Weatherly, PA, USA.
Messier 13 or M13 and sometimes called the Great Globular Cluster in Hercules is a globular cluster of several hundred thousand stars in the constellation of Hercules about 22,000 light years away. There are lots of galaxies visible in this image, but the one clearly visible above the star cluster is NGC 6207 which is 30 million Light years away! Hope you all enjoy and thanks for any constructive comments.
Equipment:
Telescope - Sky-watcher Esprit 120 with .77Reducer
Imaging Camera- Qhy268m
Mount - Sky-watcher EQ6-R Pro
Software:
Sequence Generator Pro
Pixinsight
Lightroom
Photoshop
Lights:
R-50x120sec
G 50x120sec
B 50x120sec
35 Darks
100 Bias
Total integration 5 hours
Here is a view of Comet 67P/Churyumov-Gerasimenko as it is making its way through the constellation Gemini. Closest approach to Earth will be on 11/12 November 2021.
Tech Specs: Sky Watcher Esprit 120ED, Celestron CGEM-DX pier mounted, ZWO ASI290MC and ASI071MC-Pro, ZWO AAPlus, ZWO EAF. 82 x 60 seconds at -10C plus darks and flats. Image Date: October 27, 2021. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).
NGC 2359, or Thor’s Helmet Nebula, is an emission nebula located in the constellation Canis Major. The central part of the nebula is thought to resemble the winged helmet worn into battle by Thor, the Norse god of thunder. Of course, your mileage may vary, i.e., I’ve had people seeing a spider from underneath, a baby owl, but not a helmet.
The nebula spans about 30 light years, making it 15 times larger than our solar system. It lies approximately 12,000 light years away from Earth and contains several hundred solar masses of gas. At its core is a Wolf-Rayet star, WR7, an extremely hot star estimated to be 16 times more massive than our Sun.
Wolf–Rayet stars are rare heterogeneous stars with unusual spectra showing prominent broad emission lines of ionized helium and highly ionized nitrogen or carbon. The spectra indicate very high surface enhancement of heavy elements, depletion of hydrogen, and strong stellar winds. The surface temperatures of known Wolf–Rayet stars range from 35,000 °F to around 378,000 °F, hotter than almost all other kinds of stars. The Sun’s surface temperature is about 10,000 °F.
All Wolf–Rayet stars are highly luminous objects due to their high temperatures -- thousands of times the bolometric luminosity (total energy output of an astronomical object across all wavelengths of electromagnetic radiation per unit time) of the Sun. They are not exceptionally bright visually, however, since most of their radiation output is in the ultraviolet. Think SPF 10000000000000000000…
Rio Rancho NM Bortle 5 zone, January 21-24, 2025
William Optics Redcat 51
ZWO 183mm pro
ZWO 30mm f/4 mini guide scope and ZWO 120 Mini
Optolong Ha OIII
ZWO ASI Air Pro
Sky-Watcher HEQ5
Darks GraXpert dithering
Gain 111 at -10C
Processed in DSS GraXpert and PS
HOO palette. Approximately 5.5 hours of Ha and 5.5 hours of OIII.
Here is a wide field shot of the open clusters Messier 35 and the compact open cluster designated NGC 2158, both found in the constellation Gemini. This is a huge open cluster that almost fills the same size in the sky as a full moon, it is about 2,800 light-years from Earth. As with any wide-field image of this open cluster, you get the added benefit of catching NGC 2158 nearby, not related to M35 as it lies about 9,000 light-years further away.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Canon 6D, 29 x 60 seconds, ISO 3200, Image Date: December 4, 2018. Location: The Dark Side Observatory in Weatherly, PA.
The sky did light up with smoke and a very small hint of color.
It was still nice to sit out in the meadow last night. I tried a bit of light painting with my headlamp for fun.
Para mas info... celfoscastrofotografia.blogspot.com/2021/09/de-vuelta-hor...
El equipo empleado fue...
Telescopio: ED80 Sky Watcher + 0.85X
Montura: HEQ5 Pro
Cámara: QHY163m
Enfoque: MyFocuserPro2
Guiado: MiniScope 50mm Orion, CámaraGuia/QHY5 L-II c
Adquisición: SGP (Sequence Generator Pro)
Apilado y procesado: PixInsight, Photoshop
Tomas
L: 235x180s
Total Expo: 11h 45min
Temperatura sensor: -10°C
Distancia Focal: 510mm
F/ 6,3
August 17th - Edinburgh Bortle 7/8 zone
Celestron RASA 8"
ZWO 183mc pro
IDAS L-Extreme
ZWO air pro
Sky-Watcher HEQ5 Pro
60 X 60s lights; with flats, darks and bias
Gain 122 at -10C
processed Pixinsight
Globular Cluster Messier 92 (M92 or NGC 6341) is a bright, compact globular cluster located in the northern section of Hercules. I think Robert Burnham said it best, “This is a beautiful rich globular cluster which in almost any other constellation would be considered a major show object; in Hercules it has been somewhat overshadowed by the splendor of the fabulous M13.” (Burnham’s Celestial Handbook – Volume 2 – Robert Burnham Jr.).
Observation data (J2000 epoch)
Class: IV
Constellation: Hercules
Right ascension: 17h 17m 07.39s
Declination: +43° 08′ 09.4″[2]
Distance: 27,000 ly
Apparent magnitude (V): 6.4
Apparent dimensions (V): 14' arc minutes
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO ASI2600MC camera running at 0F, 76x60 seconds guided exposures, Sky-Watcher EQ6R-Pro pier mounted, ZWO EAF and ASIAir Pro, processed in DSS and PixInsight. Image Date: May 13, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Instrument de prise de vue: Sky-watcher T250/1000 Newton F4
Caméra d'imagerie: ZWO ASI294 MC-Cool
Monture: Skywatcher AZ-EQ6 Pro Goto USB
Instrument de guidage: Lunette TS 80/328 F4,1
Caméra de guidage: ZWO ASI120 mini
Logiciels: Stellarium - ScharpCap - PHD2 Guiding - Siril - Darktable - FastStone Images Viewer
Filtres: Anti-pollution lumineuse TS CLS NEBULA (M48) - IR-Cut / IR-Block ZWO (M48)
Accessoire: GPU coma-correcteur Sky-watcher
Dates: 21 Juillet 2021 - 3h15
Images unitaires: 185x30" + 20 Darks + 20 Flats - Gain 400
Intégration: 1 h 32
Âge de la Lune (moyen): --
Phase de la Lune (moyenne): 83%
Second attempt at capturing the Orion nebula, with better material and technique this time - taken from Cheltenham, UK
Skywatcher 80ED with Nikon D5200 - simple tracking on StarAdventurer (pushed it to its limits here I reckon, but it works)
20 shots of 30s combined in DeepSkyStacker and processed
This is the face-on spiral galaxy in the constellation Pisces known as Messier 74 (M74 or NGC 628). At a distance of 32 million light-years, this galaxy sports two beautiful spiral arms, it has an estimated 100 billion stars.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 3200, 57 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: October 13, 2018. Location: The Dark Side Observatory, Weatherly, PA, USA.
Here is a view of Saturn and several moons taken on August 23, 2018.
Tech Specs: Sky-Watcher Esprit 120mmED Triplet Refractor, Celestron CGEM-DX mount, ASI 290MC, and Televue 2.5x Powermate (1.25”). Captured with SharpCap software and processed in Corel Paintshop Pro. Image Date: 23 August 2018. Location: The Dark Side Observatory, Weatherly, Pennsylvania, USA.
Here is the Dumbbell Nebula in Vulpecula. This was the first planetary nebula discovered by Charles Messier.
This image was captured using a one-shot-color astronomy camera (ZWO ASI294MC Pro) and a Sky-Watcher Esprit 100 telescope.
For a bit of a backstory behind this image, you can check out my video! youtu.be/NT7g1VWzsiw
Thus far the Sky-Watcher Esprit 120ED has been performing well! Currently testing it out on some lunar imaging using a Televue Powermate 2.5x and ZWO ASI290MC camera. Wondering how a 4x Powermate would work on this setup?
Clavius is a large crater found on the southern side of the moon, it measures approximately 136 miles across. The crater was named after Christoph Klau (or Christophorus Clavius) a 16th century German mathematician and astronomer.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, ZWO ASI290MC camera, Televue Powermate 2.5x, best 20% of 20k frames. Captured with SharpCap v3 and processed using AutoStakkert! And Registax. Image Date: February 26, 2018. Location: The Dark Side Observatory in Weatherly, PA.
Un mois plus tard, retour sur la magnifique éclipse solaire du 2 juillet 2019.
One month later, throwback to the beautiful total solar eclipse iof 02 July 2019, seen from Chile
About 43 one minute exposures at 1600 ISO, autoguided.
Sky-Watcher EQM-35
WO Zenithstar 73mm f/5.9 APO Refractor
Sony a7IV
ASIAIR Plus
Tonight’s moon from Weatherly, PA, December 29, 2022.
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at -10C, Celestron CGEM-DX Pier Mounted, best 20% of 1000 frames, focus with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using SharpCap Pro, AutoStakkert and Registax. Image Date: December 29, 2022. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Here is a view of the famous double cluster in the constellation Perseus (between Perseus and Cassiopeia), they are also designated NGC 869 and NGC 884. Check out the red supergiants in this view! Did you know that the Perseus Double Cluster is surrounded by one of the largest concentrations of red supergiants stars in the sky? (Red supergiants, neutrinos and the Double Cluster, Tristram Brelstafff, 1996)
Tech Specs: Sky Watcher Esprit 120ED, Celestron CGEM-DX pier mounted, ZWO ASI290MC and ASI071MC-Pro, ZWO AAPlus, ZWO EAF. 60 x 60 seconds at -10C plus darks and flats. Two panel mosaic imaged on 9/26/21 and 10/01/21. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).
Lunt Solar LS60MT telescope with front mounted second etalon LS50FHa, B1200 blocking filter. ZWO ASI178MM camera with 1.25x extender. Sky Watcher EQ6R-Pro mount guided and controlled by ASIAir Plus. Captured with FireCapture running on Intel NUC. Stacked with AutoStakkert!3, processed in ImagesPlus and colored- tweaked in Photoshop and Topaz DeNoise AI
Northfield, OH
August 19, 2023
Equipment--
Telescope: RedCat 51, 250mm focal length
Mount: Sky-Watcher EQ6R-Pro
Camera: ZWO ASI204MC-Pro
Guide scope: Williams Optics 50mm guide scope
Guide camera: ZWO ASI120MM-S
Software: NINA, PHD2
Imaging--
Lights: 32x300s
Darks, Flats, DarkFlats, Bias: assorted
Sensor temp: -10.0
Filter: Optolong L-Pro
Sky: Bortle 6 (nominal)
Post processing--
Software: PixInsight, Photoshop
Here is a view of the Eagle Nebula, Messier 16 (M16) in the constellation Serpens. This is another star forming region near the center of our galaxy. It also contains several interesting features, one called the Pillars of Creation (see the enhance inset image). The open cluster in the upper right is Trumpler 32 (Tr32).
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 3200, 15 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: August 9, 2018. Location: The Dark Side Observatory, Weatherly, PA, USA.
Here is an updated view of supernova 2023ixf in the galaxy Messier 101 (The Pinwheel Galaxy in Ursa Major). Tycho Tracker estimated the magnitude of the supernova to be 12.6 at the time of my observation, dimming by almost one full magnitude since June 18th.
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO ASI2600MC camera running at 0F, 30x60 seconds guided exposures, Sky-Watcher EQ6R-Pro pier mounted, ZWO EAF and ASIAir Pro, processed in DSS, PixInsight and Tycho Tracker. Image Date: July 6, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Here is my Sky-Watcher Esprit 100 APO Refractor with autoguiding.
I have used a number of setups for deep sky astrophotography, but this is definitely one of my favorites.
The Telescope: astrobackyard.com/sky-watcher-esprit-100-review/
The Mount: astrobackyard.com/sky-watcher-eq6r-review/
In this photo, you'll notice a few other items, including the ZWO ASI294MC Pro Camera, and Pegasus Astro Pocket Powerbox.
Some of my best photos were captured using this kit!
EQUIPMENT & ACQUISITION DETAILS:
Telescope: Sky-Watcher Esprit 120 ED
Camera: QHY268M
Mount: MYT
Guide Camera: ZWO ASI290MM Mini
On-mount Computer: PrimaluceLab Eagle2 Pro
Software: SGP, SkyX, PHD2, PixInsight 1.8, Lightroom
Accessories: SW Field Flattener, QHY CFW3, QHYOAG M, PoleMaster, NiteCrawler WR30, Flip-Flat, Astronomik 36mm Filters
Images (Gain 0/Offset 40 @ -10*C):
R: 86 x 120"
G: 60 x 120"
B: 60 x 120"
Ha: 42 x 300"
Total integration 10.36hrs
Taken on Oct 2022
Globular Cluster Messier 80 (M80 or NGC 6093) is a globular cluster that can be found in the constellation Scorpius. M80 lies at a distance of about 32,600 light-years and is one of the densest globular clusters in our galaxy.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Canon 6D stock camera, ISO 3200, 10 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: June 23, 2019. Location: The Dark Side Observatory, Weatherly, PA, USA.
Here is a view of the open cluster NGC 663 (also known as Caldwell 10), a young cluster of about 400 stars in Cassiopeia. Two other NGC clusters are also in this view, NGC 654 to the upper left and NGC 659 in the upper right.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 3200, 15 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: October 13, 2018. Location: The Dark Side Observatory, Weatherly, PA, USA.
Messier 108 (M108 or NGC 3556), nicknamed the Surfboard Galaxy, is a barred spiral galaxy located in the constellation Ursa Major. The galaxy lies at an approximate distance of 45.9 million light years from Earth and has an apparent magnitude of 10.7. This image combines data collected in 2021 and 2023 for a total of 3 hours 19 minutes of light.
Observation data (J2000 epoch)
Constellation: Ursa Major
Right ascension: 11h 11m 31.0s
Declination: +55° 40′ 27″
Distance: 8.8 Mpc (28.7 Mly)
Apparent magnitude (V): 10.0
Tech Specs: Orion 8" f/8 Ritchey-Chretien Astrograph Telescope, Celestron CGEM-DX pier mounted, ZWO ASI290MC and ASI071MC-Pro, ZWO ASIAir Pro, ZWO EAF. 196 x 60 seconds at -10C plus darks and flats. Processed using PixInsight and DSS. Image Date: November 5, 2021 and January 16, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Messier 36 (M36 or NGC 1960) lies at a distance of about 4,100 light years away from Earth in the constellation Auriga and is about 14 light years across. There are at least sixty members in the cluster. The cluster is very similar to the Pleiades cluster (M45), and if it were the same distance from Earth it would be of similar brightness.
Distance: 4,340 light year.
Radius: 7 light year
Right ascension: 05h 36m 18.0s
Declination: +34° 08′ 24″
Apparent Magnitude: 6.3
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at -10C, Celestron CGEM-DX mount, 54 x 60 second guided exposures, focused with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using PixInsight and DeepSkyStacker. Image Date: November 22, 2022. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
The Sun has been showing a lot of activity lately. I'm still very much learning how to do this, and solar imaging has turned out to be quite different from "normal" photography. Sure, familiar settings like exposure are still there — but beyond that, almost everything feels new.
For this, I'm using what's called a "planetary astro camera." When people hear "astrophotography," they usually (and rightfully) first think of long exposures — the kind used to capture images of nebulae and galaxies, whether by the Webb telescope or an amateur in their backyard.
But when you're photographing solar system objects like the Sun, long exposures aren't really needed. The Sun provides plenty of light. Instead, the main challenge becomes dealing with Earth's atmosphere.
That's where planetary cameras come in — they record high-speed videos, capturing thousands of frames in a minute, with each frame exposed for just a few milliseconds. Later, stacking software selects the sharper frames, discards the worst ones, and combines the rest into a raw image for further processing. This method is called "lucky imaging."
I'm imaging with a telescope that has a pressure-tuned etalon — the part that makes it possible to see prominences and surface detail. The etalon works as a narrowband filter, isolating a thin slice of light at the H-alpha wavelength. That's why these images show the Sun's features instead of just a white glare.
I'm also using a monochrome (mono) camera, which fits well for this kind of imaging. Since H-alpha is a single wavelength, color isn't needed — and mono cameras tend to capture better contrast and finer detail.
One thing I learned from helpful people on the Cloudy Nights forum is that the etalon isn’t perfectly even across the field — there’s a "sweet spot" where the tuning is best. (I think of it more as a "sweet area," because it's fairly large — no trouble fitting the Sun inside.) Understanding this has made a real difference, both visually and in imaging, compared to my first tries.
Visual observing has been especially rewarding. The eye does a fantastic job picking up both prominences and fine surface details at the same time — something that's much harder to show in a photograph (this one show only prominences, exposed for that). What I like about this image is that I managed to catch a little of the fine structure in the prominences — the kind of detail the eye sees naturally when the scope is well tuned.
Here is an image of the Omega Nebula, Messier 17 (M17) found in the constellation Sagittarius. Did you know this nebula got its name from its appearance to the Greek letter omega? It has been called the brightest and most massive star-forming region of our galaxy.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 3200, 15 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: September 2, 2018. Location: The Dark Side Observatory, Weatherly, PA, USA.
Just a single exposure, shot with a Nikon D600 and Rokinon 24mm f1.4 lens on a Sky Watcher Star Adventurer tracking mount, ISO 1600, f1.4, and 35 seconds. I've been trying various camera settings to see what kind of quality differences exist with the camera and lens. I prefer to stop this lens down to around f2.5 to get nice round stars and some star spikes with a 2-4 minute exposure at ISO 400 or 800, but out of curiosity I wanted to see what kind of histogram I got from a 30-45 second exposure at ISO 1600 and f1.4. Time is precious for shooting the core this time of year, every minute counts, so if I can get good quality from an exposure that's about a quarter as long as my normal exposure I can get more exposures in when I go out before the core sets.
From the Gazetteer of Planetary Nomenclature (planetarynames.wr.usgs.gov/Feature/3273), Crater Langrenus was named after Michel Florent van Langren, a Belgian selenographer (somebody who studies the surface and physical features of the moon) and engineer (circa 1600-1675) and is almost 132 KM wide.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, ZWO ASI290MC camera, Televue Powermate 2.5x, best 40% of 10k frames under bad seeing. Captured with SharpCap v3 and processed using AutoStakkert! And Registax. Image Date: February 20, 2018. Location: The Dark Side Observatory in Weatherly, PA.
The Rosette Nebula (also known as Caldwell 49) is a large spherical ionized atomic hydrogen region (H II region) that is circular in appearance and located near one end of a giant molecular cloud in the Monoceros region of the Milky Way Galaxy. The open cluster NGC 2244 (Caldwell 50) is closely associated with the nebulosity, the stars of the cluster having been formed from the nebula's matter (from Wikipedia).
The nebula is about 5,200 light-years away and spans nearly 65 light-years.
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, Canon 6D stock camera, 27 minutes total integration time at ISO 3200, imaged on February 6, 2018. Location: The Dark Side Observatory in Weatherly, PA.
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• Sky-Watcher Quattro 250P
• Sky-Watcher EQ8-R Pro
• ZWO ASI294MM-Pro
• Astronomik L: 47x300s bin1 gain 0
• Astronomik RGB: 34x300s bin2 gain 125
(total integration 6.75h)
• ZWO OAG & ASI290Mini guide cam
• TS GPU coma corrector
• ZWO EFW, ZWO EAF & Pegasus Astro Ultimate Powerbox 2
Trevinca, Valding, Spain
Bortle 3, SQM 21.8
processed with Pixinsight
Located near the bright star Mirach is the galaxy NGC 404. Lying so close to Mirach, a second magnitude star, has earned it the name "Mirach's Ghost".
Tech Specs: Sky Watcher Esprit 120ED, Celestron CGEM-DX pier mounted, ZWO ASI290MC and ASI071MC-Pro, ZWO AAPlus, ZWO EAF. 85 x 60 seconds at -10C plus darks and flats. Image Date: October 27, 2021. Location: The Dark Side Observatory, Weatherly, PA, USA (Bortle Class 4).
This is a sectional view of the large star forming region called the Soul Nebula (Embryo Nebula, IC 1871, Sh2-199) and is found in the constellation Cassiopeia. This nebula is often shown next to the Heart Nebula (IC 1805). The Soul Nebula is about 6,500 light years away from Earth and contains several open clusters and few smaller emission nebulae around the perimeter. The star clusters are surrounded by hydrogen, which glows red from the young hot stars nearby. This view only shows about 1/3 of the entire nebula.
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at -10C, Celestron CGEM-DX mount, Optolong L-eNhance 2” Filter, 30 x 300 second guided exposures, ZWO EAF, ZWO ASIAir Pro. Processed using DSS and PixInsight. Image Date: October 21, 2022. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).