[AZ-Observing] Re: Sunrise On Rupes Recta
- From: "Wayne (aka Mr. Galaxy)" <mrgalaxy@xxxxxxxx>
- To: az-observing@xxxxxxxxxxxxx
- Date: Fri, 14 Jan 2011 01:19:04 GMT
15480 Empire Rd.
Benson, AZ 85602
hm ph: 520-586-2244
Nice shots, Tom. I've always been fascinated by capturing dynamic astronomical
events via time-lapse astroimaging - did some multiple exposures of Uranus and
Neptune for a couple nights with the Kuhn 22-inch telescope at the OCA's Anza
Observatory, sequences for many comets and asteroids, and, of course, many SN
images before, during, and after their explosions. I never did variable stars,
per se, but that's another great area, especially the Long Period Variables,
like Mira.
For the moon, it looks like it might be necessary to have a coordination of
several telescopes located around the globe to get a good terminator sequence
so that you don't have to worry about the moon setting and other atmospheric
effects.
Clear skies,
Wayne (aka Mr. Galaxy)
---------- Original Message ----------
From: Tom Polakis <tpolakis@xxxxxxx>
To: AZ-Observing@xxxxxxxxxxxxx, evac@xxxxxxxxxxxxxx
Subject: [AZ-Observing] Sunrise On Rupes Recta
Date: Thu, 13 Jan 2011 1:47:09 -0500
The moon is librated enough tonight to show the Straight Wall at First Quarter.
Typically it turns up at about 8 or 9 days after New Moon. I began at 9:10
p.m., and recorded four images at half hour interval to create this time-lapse
animation. The shadow of the wall of the crater Birt diminishes quite a bit
during the 1 1/2 hours of the sequence. Sunlight begins to illuminate the
western rim of the crater Nicollet near the bottom of the frame.
http://www.pbase.com/polakis/image/131789333
And now... excuses. The seeing was horrible during that 4:40 image, so that's
as sharp as that frame is going to get. Later, the transparency began to go as
the moon was sinking, making evening out the brightness and contrast a
challenge. Not appearing in this film is a 6:10UT image that was ruined by
cirrus and the associated really bad seeing.
Tom
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