LtE in CMO #243

From Damian PEACH


@. . . . . . Here is an observation from yesterday morning. Seeing was good enough to keep my at the eyepiece for a while...

Best Wishes

(8 May 2001 email)

 

INFORMATION FOR MARS OBSERVATION, MAY 8th, 2001.

D. A. Peach, King's Lynn, Norfolk, UK.
12" (30.5cm) Meade SCT.
Magnifications: 406X.
Filters: Unfiltered/W#21.

Seeing poor-fair (3-5) at 12degs altitude. Seeing good (6-8) at ~40 degs altitude.
Transparency good (4.5mag), high haze, cirrus.
Wind NE (0-5mph.) Heavy dew.

Observation Time: 02:55 - 03:10 UT
Mars CML: 187.1
Ls: 157.4
Diameter: 15.40"
Altitude of Mars: 11.5degs.

Comments: Seeing allowed a reasonable view this morning. Bright morning limb hazes extending over Aeolis, Aethiopis, Aetheria, Cebrenia. SPH very bright. Elysium cloud very weak. Albedo markings appeared prominent, especially Mare Cimmerium. Lemuria appeared dark and thin in the Northern hemisphere. Hyblaeus Extension dark/dusky. Propontis also dark. No evening limb clouds/hazes noted across Tharsis.

@. . . . . . . Here is an observation from this morning. Better seeing allowed more to be seen. I also just realized, which is worth noting is that my observation was made at almost exactly the same time as Antonio's latest images.

(9 May 2001 email)

 

INFORMATION FOR MARS OBSERVATION, MAY 9th, 2001.

D. A. Peach, King's Lynn, Norfolk, UK.
12" (30.5cm) Meade SCT.
Magnifications: 406X.
Filters: Unfiltered/W#25/W#38A.

Seeing poor-fair (3-6) at 12degs altitude. Seeing very good (7-8) at ~40 degs altitude.
Transparency very good (4.5mag.)
No Wind. Moderate/Heavy dew.

Observation Time: 03:20 - 03:50 UT
Mars CML: 187.1
Ls: 157.4
Diameter: 15.60"
Altitude of Mars: 12.5degs.

Comments: Better seeing allowed slightly better views this morning. Bright Morning limb haze again extending over Aeolis, Aethiopis, Aetheria, Cebrenia. This was particularly bright in W38A. Elysium cloud again weak. Light Evening limb haze noted over Tharsis. No Olympus Mons cloud noted. SPH very bright across Eridania, Ausonia, Thyle II.
 Albedo markings appeared normal. Mare Cimmerium dark, Mare Tyrrhenum also dark on the morning limb. Hesperia visible during stable moments. Hyblaeus dark/dusky. Trivium/Cerberus also dark/dusky.
Also of note is that both Hyblaeus & Trivium/Cerberus were visible through the W38A filter. Propontis dark/dusky.
Lemuria dark.


Damian PEACH (Norfolk UK)

ALPO/BAA Jupiter Sections; BAA Saturn Section
mailto:%20dpeach78@netscapeonline.co.uk

http://www.the-planets.co.uk/

http://members.netscapeonline.co.uk/dpeach78/index.htm  


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