LtE in CMO #280

From Nicolas BIVER

® . . . . . . . .Date: Mon, 29 Sep 2003 17:41:36 +0200 (CEST)

Subject: Sept. 21-26: Mars

Dear all,

Back from southern french Alps, here are 3 drawings of Mars I made with relatively good seeing conditions, with the 40.7cm newtonian, from ~2500m alt. observing site. The last one (on a larger scale) was more designed to detail the region of S. Meridiani with good seeing, but hazy skies...　The polar hood was also brighter and more prominent (covering a large part of Mare Acidalium) at that time (Sept. 26.9 UT).

Drawings information:

Date: 2003-09-21 21:50 UT

ω = 75.1°, δ=22.4" Ls=265.23°

Instrument: 40.7-cm Newtonian, x700

Seeing: 7 to 8 /10, but a bit windy

Transparency 9 to 6 /10

Location: near "Col de la Bonette", Alps, France

Date: 2003-09-25 20:57 UT

ω = 26.0°, δ=21.7" Ls=267.74°

Instrument: 40.7-cm Newtonian, x700

Seeing: 5 to 7 /10

Transparency 9 to 4 /10 (fog)