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)

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

 

(The larger one:)

Date: 2003-09-26 21:05 UT

ω = 18.9, δ=21.5" Ls=268.37

Instrument: 40.7-cm Newtonian, x700

Seeing: 6 to 8 /10

Transparency 8 to 2 /10 (altitud clouds/fog)

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

 

Clear and Steady Skies,

 


Nicolas BIVER (Versailles, France)

Nicolas.Biver@obspm.fr

biver@mesiog.obspm.fr

http://wwwusr.obspm.fr/biver

http://solarsystem.estec.esa.nl/~nbiver

Observatoire de Paris-Meudon

5 Place Jules JANSSEN

92190 MEUDON, FRANCE


 Back to the LtE Home Page

 

 Jump to the LtE Archives

 

 Back to the CMO Home Page