[AZ-Observing] Re: Visual Limit From Sentinel Last Night
- From: "Steve Coe" <stevecoe@xxxxxxxxx>
- To: <az-observing@xxxxxxxxxxxxx>
- Date: Sun, 5 Jan 2003 16:42:27 -0700
Tom;
A NEW observing accessory--a comfortable mattress and a sleeping bag? Ah,
horizontal observing.....
I have naked eye notes from a good night at 5000 ft. altitude at Dugas Rd. that
I rated 7/10 for transparency. I was able to hold steady a star that was 6.9
magnitude and glimpse one of 7.2 about 20 percent of the time. Those notes are
also from a long time ago and my eyes were younger, then. It seems that was a
night that I was doing some binocular observing of Summer Milky Way and so
didn't have a telescope to distract me from just looking around. I probably
used the "how many stars inside the Bowl of the Dipper" thing to get those
numbers, but I took poor notes and just jotted down the final values. One of
these days, I am going to do this again and see how the passage of 15 years has
effected the results. Then again, maybe I don't want to know.
Agree with you, Tom, I think that folks who see deep can pick out stars of 7.5
mag regularly from a good site, I would not dispute that.
Steve
stevecoe@xxxxxxxxx
Author: Deep Sky Observing--The Astronomical Tourist
Saguaro Astronomy Club web site:
www.saguaroastro.org
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