[AZ-Observing] Re: Lunar observing tonight
- From: "Matt Luttinen" <mluttinen@xxxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Thu, 12 Dec 2002 22:43:44 -0700
Jack,
Rima Birt is definitely a seeing-driven object in small
scopes like mine. The atmosphere settled and all of a
sudden it snapped into view from end-to-end. This was at
227x.
Matt
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Matt Luttinen
Sent: Thursday, December 12, 2002 10:32 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Lunar observing tonight
Jack,
I can make out only the north end of this feature, and then
only when the seeing settles. It seems to terminate at a
small crater. This is with my 120mm at 227x.
Matt
-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Jack Jones
Sent: Thursday, December 12, 2002 10:13 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] Re: Lunar observing tonight
Running north from the crater Birt and parallel with Rupes Recta the
Straight Wall, is a cleft called Rima Birt that is supposed to be
visible in larger telescopes according to Rukl's. I can see it with the
Club 6", barely with 90x and definitely at 250x. Very very fine. The
cleft and the wall both end simultaneously at their north ends. John
Holmquist knew how to grind a mirror.
Jack Jones
Saguaro Astronomy Club
Lunar List Awards and
Messier Marathon Co-coordinator
Phoenix AZ
spicastar@xxxxxxxxxxxxxxx
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