TDS_Observatory

@TDS_Observatory

The Dark Side Observatory is a small, personal, roll-off roof observatory in Northeastern Pennsylvania run by Tom Wildoner.

Weatherly, PA
Vrijeme pridruživanja: ožujak 2015.

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  1. 4. velj

    Here is a three panel mosaic of last evening's moon at 69% full. I placed the old Meade 12" LX90 back in service for galaxy season, forgot how much detail this scope provides on lunar shots. Tech Specs: Meade 12" LX-90, Celestron CGEM-DX mount (pier mo…

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  2. 2. velj

    NGC 2141 is another rich open cluster found in Orion's Club. It has a magnitude of 9.3 and is about 13,100 light years away from Earth. This is an old open cluster with estimates in the 1.7 billion year range, the age of the stars and the location behind…

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  3. 31. sij

    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…

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  4. 29. sij

    NGC 2194 is a rich moderately concentrated open cluster found in the arm of Orion. It has a magnitude of 8.5 and is about 12,300 light years away from Earth. The cluster has 140+ stars down to magnitude 15. The bright star on the lower left is 73 Orionis…

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  5. 26. sij

    NGC 2169 is a small open cluster found in the constellation Orion. It is about 3,600 light years away from Earth and is nicknamed "The 37 Cluster", can you see the 37 in the image? Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron…

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  6. 24. sij

    127 Johanna is a main belt asteroid that is about 76 miles wide. Currently, it is slowly moving through the constellation Auriga at magnitude 11.8. From Wikipedia: Johanna (minor planet designation: 127 Johanna) is a large, dark main-belt asteroid that w…

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  7. 22. sij

    The night of 20-21 January 2020 resulted in 11.5 hours of imaging time, woot! Luckily everything was online and capturing photons the entire evening with only a few minor tracking issues. Here is an image of the Sky Watcher Esprit 120 in action. Imaging …

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  8. 20. sij

    NGC 2281 is another small open cluster found in the constellation Auriga. It has a magnitude of 5.4 and is about 1,800 light years away from Earth. Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount (pier mounted), ZW…

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  9. 18. sij

    Messier 44 – The Beehive Cluster (or also called the Praesepe) is a open cluster that lies in the constellation Cancer. M44 has a visual brightness of magnitude 3.7, so it is easily visible using a modest telescope and can easily be seen using binoculars…

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  10. 16. sij

    The constellation Orion, main stars highlighted, with thin clouds naturally highlighted with moon light on January 13, 2020. Tech Specs: Canon 6D + Canon EF17-40mm f/4L USM lens + tripod. ISO 3200, 8 seconds, f/4, 17mm. Image date: January 13, 2020. Loc…

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  11. 14. sij

    Bright planet Venus setting in the western sky last evening, January 13, 2020. Tech Specs: Canon 6D + Canon EF17-40mm f/4L USM lens + tripod. ISO 3200, 4 seconds, f/4, 40mm. Image date: January 13, 2020. Location: The Dark Side Observatory, Weatherly, P…

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  12. 13. sij

    Here is a view of the most distant globular cluster in the Milky Way, NGC 2419, some have postulated that this may be an extra-galactic object. I have seen distances listed as high as 285,000 light-years away from Earth. It appears small and dim, but it …

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  13. 11. sij

    NGC 2126 is a small open cluster found in the constellation Auriga. It has a magnitude of 10.2 and is about 3,600 light years away from Earth. The cluster is dominated by the magnitude 6.1 star SAO 40801 which is the bright star in the center of the imag…

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  14. 9. sij

    NGC 2129 is a small open cluster in the constellation Gemini, it is about 7,200 light years away from Earth. Tech Specs: Sky-Watcher Esprit 120mm ED Triplet APO Refractor, Celestron CGEM-DX mount (pier mounted), ZWO ASI071MC-Pro running at -25C, 20 x 60…

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  15. 7. sij

    Messier 37 is a large open cluster found in the constellation of Auriga. It has an apparent magnitude of 6.2 and covers about 24 arc-minutes of sky, the distance from Earth is about 4,500 light-years. Did you know M37 has at least a dozen red giant stars…

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  16. 5. sij

    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 t…

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  17. 3. sij

    NGC 2192 is a nice little open cluster found in the constellation Auriga. It has a magnitude of 10.9 and is about 11,300 light years away from Earth. The Sky Watcher Esprit frames this cluster nicely mixed in with some brighter 6th and 7th magnitude star…

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  18. 1. sij

    Messier 67 (also known as M67 or NGC 2682) is an open cluster in the constellation of Cancer. It has the nickname King Cobra cluster, not sure where that name came from but would love to know. The cluster is about 2,800 light-years away from Earth. From …

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  19. 30. pro 2019.

    Messier 36 (M36 or NGC 1960) lies at a distance of about 4,100 light years away from Earth 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 …

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  20. 28. pro 2019.

    This is the star Betelgeuse in the constellation Orion. In the last few weeks there has been some discussion about the dimming of this star and the possibility of it going supernova. While it will explode someday, the recent dimming is probably due to it…

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