Mars with Phobos and Deimos
Taken by Steve Lantz on July 28, 2018 @
Vancouver, WA, USA
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Camera Used: Unavailable Unavailable
Exposure Time: Unavailable
Aperture: Unavailable
ISO: Unavailable
Date Taken: 2018:07:28 20:30:46
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Details:
Celestron C11 Schmidt Cassegrain no barlow (f/10, 2800 mm) with Skyris 236M. This is a composite image taken July 28th around 8:14 UT.
I used WinJUPOS to confirm the locations of Phobos (blue orbit) and Deimos (red orbit). I made the correctly oriented orbits myself in Photoshop by plotting a full orbit of each moon from the WinJUPOS ephemeris graphic.
Besides WinJUPOS I noticed there isn't much data out there about the orbits of Phobos and Deimos, let alone when they will be at their greatest elongations. That's why I made my own orbits to visualize them. You can find transit times for the GRS, the position of Triton, and the longitude of Mars facing us but nothing about Phobos and Deimos that I could find.
Phobos is mag 10.5 while Deimos is 11.6. The star at bottom right is 12.4. For the overexposed portion I took the best 75 of 100 1-second exposures and enhanced them with Registax. I was surprised by results especially since the full moon was less than 9 degrees away.
Photographer's website:
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