LtE in CMO #269

From Damian A PEACH

Hi all,

Here are some images from Jan 17th-18th, showing the triple transit of Io, Europa and Callisto. Seeing was good, and the event was followed from start to finish. The bright equator and dark poles of Io are very apparent. Also, i caught Oval BA much later on, but seeing wasnt as good.

This is the first time i recall seeing 3 moons cross the disk of Jupiter at once.

Best Wishes

© . . . . . . . . . .Hi all,　Here are some Mars images from Jan 28th. After over two weeks of poor seeing in the early morning hrs, it finally improved to allow some more images. Syrtis Major was on the CM. Hellas appeared bright. Will obtain more hopefully this weekend.

Best Wishes

MARS IMAGES, JANUARY 28th, 2003.

D. A. Peach, Costa del Silencio, Tenerife, Canary Isl.
11" (28 cm) Celestron SCT @ f/31.4. SBIG ST-5c camera in 1/4 frame mode.
SBIG RGB Filter set.

Total Exposure Times:

IR (800 - 1200nm): ~38 x 0.15 secs
Blue Light + IR rejection: ~45 x 0.30 secs.

Seeing poor-fair (p3-7.) Later deteriorated to very poor.
Transparency variable, with frequent high cirrus/haze (0.0 mag - 4.0mag.)
No wind. No dew.

Equatorial Diam=5.15"
Altitude= 35 degs.

(30 January 2003 email)

Hi all, Here are some Mars images from Feb 5th. Seeing was rather mediocre, but the clouds over Elysium and the morning limb are recorded, and were also seen visually.

Best Wishes

(P.S. Thanks Don, for the processing tips - i found a routine in the end!.)

MARS IMAGES, FEBRUARY 5th, 2003.

D A Peach, Costa del Silencio, Tenerife, Canary Isl.

11" (28 cm) Celestron SCT @ f/31.4. SBIG ST-5c camera in 1/4 frame mode. SBIG RGB Filter set.

Total Exposure Times:

IR (800-1200nm): ~80 x 0.15secs

Blue Light + IR Rejection: ~40 x 0.30secs

Seeing generally poor-fair (p4-6.)

Transparency good (4.0mag.) Light dust haze.

No wind. No dew.

Equatorial Diam=5.36"

Altitude= 32 degs.

(7 February 2003 email)

From: RMckim5374@aol.com

To: dpeach_78@yahoo.co.uk,

Subject: Re: Mars images (Feb 5th.)

Dear Damian:

Many thanks for this image set. I had a view of a.m. cloud over Elysium (visually) last month with the 40 cm Cassegrain here. Now from your images we see that it is still bright later in the Martian day, typical seasonal behaviour. Nice images, moreover given the sub-6 arcsec disk diameter. Notice the Aetheria darkening is still evident, but Cerberus-Trivium Charontis continues its unusual faintness (since 1990).

Regards

Richard McKIM (BAA Mars Section)

From: =?iso-8859-1?q?Damian=20Peach?= <dpeach_78@yahoo.co.uk>

To: RMckim5374@aol.com,

Subject: Re: Mars images (Feb 5th.)

Hi Richard,

Many thanks. I also was able to note the bright clouds quite easily visually that morning at 440x. The limb cloud was especially easily seen. I failed to note the NPC though.

Best Wishes

Damian PEACH (Tenerife, Spain)

ALPO/BAA Jupiter Sections; BAA Saturn Section
dpeach_78@yahoo.co.uk

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