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Mars Obs 13.7.03
Sounds like a good evening to head over to the Strines Inn...
-- To reply, remove the "z" if one appears in my address "Paul Henney" wrote in message news Location: Sheffield UK Time 00:20 - 01:00 UT Instrument : f/9.8 120 mm achromat. 10mm kellner ; 7.5mm plossel, 2x barlow Seeing was poor. SPC distinct but little other detail other than vague dark mass towards SW limb (? Mare Erythraeum according to MPII). Hoping for better than this given that disc diam. was about 19 arc seconds but assume will need to wait until Mars rises a bit higher..can't afford to be that late up :-) pj |
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Mars Obs 13.7.03
"Paul Henney" wrote in message news Location: Sheffield UK Time 00:20 - 01:00 UT Instrument : f/9.8 120 mm achromat. 10mm kellner ; 7.5mm plossel, 2x barlow Seeing was poor. SPC distinct but little other detail other than vague dark mass towards SW limb (? Mare Erythraeum according to MPII). Hoping for better than this given that disc diam. was about 19 arc seconds but assume will need to wait until Mars rises a bit higher..can't afford to be that late up :-) I would recommend observing "early" rather than being "late night" observer for Mars from UK. During recent weeks I have started observing Mars after 4AM , continuing to after 5.30 AM (local BST), with best views of Mars occuring about half an hour before to half an hour after local sunrise , i.e. when Mars is near maximum elevation in the south. Maximum useful magnifications now upto x 280 when Mars is highest in my local sky near London. Ant |
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Mars Obs 13.7.03
"Paul Henney" wrote in message ...
Location: Sheffield UK Time 00:20 - 01:00 UT Instrument : f/9.8 120 mm achromat. 10mm kellner ; 7.5mm plossel, 2x barlow Seeing was poor. SPC distinct but little other detail other than vague dark mass towards SW limb (? Mare Erythraeum according to MPII). Hoping for better than this given that disc diam. was about 19 arc seconds but assume will need to wait until Mars rises a bit higher..can't afford to be that late up :-) pj I too observed it on July 13th, at 07:20 UT. This is my second observation of this apparition. It keeps getting better and better (see my Mars Obs. 06/28/03 post). Location was about 40 miles SW of Chicago, with a 76mm Newtonian, 25mm, 10mm and 6mm eyepieces (scope and eyepieces are Orion brand). The SPC was easily visible in the 10mm and 6mm eyepeices (and this is the first time that I've seen either of the polar caps on the planet). Also a bit of shading was around the SPC, with a small "hook" extending from it in the direction toward the center of the planet. This was Mare Sirenum. I didn't observe any other detail on the planet, although my session was brief so I didn't spend a lot of time looking. This time, my scope was properly cooled down. Dave Johnson. |
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