Comet observation from Mars, comets close encounters to Mars in 2013 and 2014 |
Comet observation from Mars, comets close encounters to Mars in 2013 and 2014 |
Feb 25 2013, 10:07 PM
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Newbie Group: Members Posts: 18 Joined: 20-April 05 From: Czech Republic Member No.: 300 |
Is there is any possibility to observe comets in near future from surface of Mars and/or from Mars orbiters. Which types of instruments are possible to use?
For example (http://ssd.jpl.nasa.gov/horizons.cgi - position Mars 0deg Longitude, 5deg south Latitude, time UTC): 1) Comet C/2012 S1 (ISON) 2013-Oct-01 17:19UTC RA 23 07 44.73 DE +69 27 46.0 MAG 2.93 r 1.637007919902 delta 0.07246306543080 So there is relativly very close encounter in October 2013, about 11 million km from Mars.. 2) Comet C/2013 A1 (Sidding Spring) 2014-Oct-19 20:59UTC RA 10 49 50.64 DE -60 38 09.5 MAG -8.29 r 1.401218071277 delta 0.00070643344409 There is still maybe not so precise orbit BUT, there is ONLY about 105 000 km (65 000 miles) encounter from Mars. Especially the second comet, if this orbit will be OK, is very interesting target to observe. -------------------- |
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Sep 29 2013, 06:15 PM
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Martian Photographer Group: Members Posts: 353 Joined: 3-March 05 Member No.: 183 |
I get magnitude 5.5 from Mars, based on >13 from Earth at this time. And that'll be a bit spread out as seen from Mars. And through dust, for the rovers. Hard to say ISON would be more visible than, say, M31.
Siding Springs will be bright, but spread out--mostly, the surface brightness may not be even visible--except that for it, the nucleus can be detected by things other than HiRise. I don't know about using Navcam, as opposed to Pancam, from MER. It is not nearly as sensitive, with a bit of neutral density coating. |
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