Re: (meteorobs) Another failed Observing Session

• To: <meteorobs@latrade.com>
• Subject: Re: (meteorobs) Another failed Observing Session
• From: "Wayne T Hally" <wayne.t.hally@bangate.tek.com>
• Date: Tue, 19 May 98 10:37:02 EDT
• Reply-To: meteorobs@latrade.com
• Sender: owner-meteorobs

Kevin,
I'm just curious...about what time does it get dark and too light to 
observe
up there?At the present it's dark for a good 7.5 hours down here.
George Zay


George (and Kevin)
	We are rapidly approaching the solstice, so this list of shortest 
night times is a pretty good estimate...although with a few weeks to go 
it's a little longer right now.

All times are from Nautical twilight to Nautical twilight....at this time I 
find the sky has brightened quite a bit..dot it's kind of an absolute limit to 
observing IMHO. Truly dark (Astro twilight) times will be shorter, 
considerably so the further north you are.

Location       Hours  Date

Beaverton OR    5:21  6/22
Orleans  CAN    5:32  6/23
High Bridge NJ  6:22  6/21
Zay Observatory 7:34  6/17
Key West, FL    8:31  6/07

Wayne

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