Re: (IAAC) Obj: Alpha Libra(Zubenelgenubi), M5, M4 - Inst: 10x50 binoculars
The limiting magnitude I give belong to the part of the sky near the object.
Near my house, there are many streetlights. The objects I observed were
close to the streetlight so the limiting magnitude I wrote were low. I can
see about 5th magnitude stars from my house with naked eye if the star is
well away from streetlights. M22 seemed much birghter than M5 to me although
it is closer to horizon. However; some of the streetlights were off so the
sky was much darker. So I can achieve dark skies but of course the
conditions are incomperable to that of rural areas.
The seperation between the members of alpha Lib is so much that it is hard
to believe it is actually a binary star.
From: Lew Gramer & Karen Simmons <email@example.com>
To: Deep Sky Observing - Discussion
Cc: Lew Gramer at work <firstname.lastname@example.org>
Date: 30 Mayıs 1999 Pazar 09:02
Subject: Re: (IAAC) Obj: Alpha Libra(Zubenelgenubi), M5, M4 - Inst: 10x50
>Thanks for another great set of binocular observations, Erhan: a large
>number of us amateurs are forced to spend the best nights observing from
>our light-polluted backyards, so it's always good to hear what others
>have found and seen in the same conditions! And nothing's better to do a
>side-by-side comparisons of deep-sky objects with than a pair of binocs.
>BTW, Ankara is a huge city, but are you sure your Limiting Magnitude was
>really THAT bad? If you really couldn't see down to mag 3.5 or mag 4, then
>the Little Dipper (Ursa Minor) would only show TWO stars - and even at cul-
>mination the Big Dipper's (Ursa Major's) Bowl would be incomplete... Still,
>Ankara may be a far more light-polluted city than Boston is. If so, here's
>hoping you can meet fellow Turkish amateurs and get to the country often!
>PS: I'd never noticed that alpha Lib was a binocular double - thanks!
>Clear (dark) skies,
>At 07:18 AM 05/27/1999 -0400, you wrote:
>>Observer: Erhan Ozturk
>>Your skills: Beginner (< one year)
>>Date/time of observation: 24/5/1999 23:00 UT
>>Location of site: Ankara/Turkey (Lat 40N, Elev 33E)
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