Comets

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Comet C/2019 U6 (Lemmon) Observation

Comet C/2019 U6 (Lemmon) is currently in the constellation Coma Berenices and hovering at magnitude 8.8.
INFO: C/2019 U6 (Lemmon), or Comet Lemmon is a long period comet with a near-parabolic orbit discovered by the Mount Lemmon Survey on October 31, 2019.
Tech Specs: ZWO ASI071mc-pro, Williams Optics REDCAT51, 16 x 60 seconds with dark and flat frames. Stacked in DSS and processed in PixInsight. Image Date: July 31, 2020 (UT 1 Aug 2020 @ 0300HRS). Location: The Dark Side Observatory, Weatherly, PA, USA.

Comet 67P/Churyumov-Gerasimenko

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).



Comet C/2020 F3 (NEOWISE) - July 17, 2020

Here is Comet C/2020 F3 (NEOWISE) from last evening, just a single image before the clouds rolled in. Tech Specs: Canon 6D, Canon 70-200mm f/2.8L USM lens, tripod mounted, ISO 400, 6 seconds, f/2.8, 70mm. Image Date: July 17, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.

Comet C/2020 F3 (NEOWISE) - July 31, 2020

Here is Comet C/2020 F3 (NEOWISE) passing in front of several galaxies on July 31, 2020.
Tech Specs: ZWO ASI071mc-pro, Williams Optics REDCAT51, 29 x 60 seconds with dark and flat frames. Stacked in DSS and processed in PixInsight. Image Date: July 31, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.
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Comet C/2017 T2 (PANSTARRS) Observation

Comet C/2017 T2 (PANSTARRS) is currently in the constellation Coma Berenices and hovering at magnitude 10.2.
INFO: C/2017 T2 (PANSTARRS) is an Oort cloud comet discovered on 2 October 2017 when it was 9.2 AU (1.38 billion km) from the Sun.
Tech Specs: ZWO ASI071mc-pro, Williams Optics REDCAT51, 16 x 60 seconds with dark and flat frames. Stacked in DSS and processed in PixInsight. Image Date: July 31, 2020 (UT 1 Aug 2020 @ 0300HRS). Location: The Dark Side Observatory, Weatherly, PA, USA.

Perseus Double Cluster and Comet PanSTARRS (C/2017 T2)

Here is a view of the famous double cluster in the constellation Perseus (between Perseus and Cassiopeia), they are also designate 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). Also in this image is a visitor, Comet PanSTARRS (C/2017 T2), you can find it just right of center as a greenish blur with a little tail pointing to the upper left.
Tech Specs: Williams Optic Redcat 51, Celestron CGEM-DX mount (pier mounted), ZWO ASI071MC-Pro running at -10C, 30 x 120 second exposures, GAIN 200, guided using a ZWO ASI290MC and Orion 60mm guide scope. Captured using SharpCap v3.2. Image date: January 29, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.

Comet C/2019 Y4 (ATLAS) – March 21, 2020

Here is a view of Comet C/2019 Y4 (ATLAS) from last evening, March 21, 2020. This is just a 14-minute stacked exposure showing the comet as it is traveling through the constellation Ursa Major. The comet tail is clearly visible.
Technical Specs: Meade 12” LX-90, ZWO ASI071mc-Pro, 14 x 60 second exposures, Gain 200, Temp -5C, guided using a ZWO ASI290MC and Orion 60mm guide scope. Captured using SGP v3.1 and processed in DeepSkyStacker. Image date: March 21, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.

Comet C/2020 F3 (NEOWISE) - July 14, 2020

Here is Comet C/2020 F3 (NEOWISE) from last evening. This is a nine minute exposure using 20-second subs. Just starting to capture some details in the tail.
Tech Specs: Canon 6D, Williams Optics REDCAT on an iOptron SkyTracker mount (1st Gen). ISO 400, 27 x 20 seconds with darks, bias and flat frames. Stacked in DSS and processed in PixInsight and Adobe Lightroom. Image Date: July 14, 2020. Location: The Dark Side Observatory, Weatherly, PA, USA.

Comet Swift-Gehrels (64P)

Comet Swift-Gehrels (64P) is a periodic comet which has a current orbital period of 9.23 years. Here it is passing through the constellation Andromeda, look close and you can see the spiral galaxy NGC 218 on the right at magnitude 13.6 and a small galaxy it is interacting with (PGC 2726). Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount, Canon 6D stock camera, ISO 3200, 5 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: October 30, 2018. Location: The Dark Side Observatory, Weatherly, PA, USA.

Comet Swift-Gehrels (64P)

Here is a 9-minute image of Comet 64P/Swift-Gehrels as it passes from the constellation Triangulum and into Andromeda. Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Canon 6D stock camera, ISO 3200, 9 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: November 25, 2018. Location: The Dark Side Observatory, Weatherly, PA, USA.

Comet 46P/Wirtanen

Comet 46P/Wirtanen as seen on December 10, 2018, 20-minute exposure. Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Canon 6D stock camera, ISO 3200, 20 x 60 seconds, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: December 10, 2018. Location: The Dark Side Observatory, Weatherly, PA, USA.

Comet Stephan-Oterma (38P)

Comet Stephan-Oterma (38P) moving through the constellation Lynx last evening. 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.

Comet Wirtanen (46P)

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.

Comet C/2018 W2 (Africano)

Here is a view of Comet C/2018 W2 (Africano) taken last evening, August 30, 2019. This comet was discovered on November 27, 2018, by B. M. Africano (Mount Lemmon Survey) while at 20th-magnitude and showing a possible tail. Currently, this comet is parked in the constellation Camelopardalis, the current visual magnitude is estimated to be 12.87 (ref: https://theskylive.com/c2018w2-info).
Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Canon 6D, ISO 3200, 15 x 60 second exposures with dark/bias frames, guided using a ZWO ASI290MC and Orion 60mm guide scope. Image date: August 30, 2019 @ 03:54 UT. Location: The Dark Side Observatory, Weatherly, PA, USA.