SDAA_AISIG : SDAA_AISIG

SDAA_AISIG

Group Information

Members: 105
Category: Astrophotography
Founded: Sep 2, 2005
Language: English

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12 New Messages - New Questions

Description

This is a special interest group of the San Diego Astronomy Association spun off from the SDAA Yahoo Group and the SDAA Astro Imagers Special Interest Group gallery site for in-depth discussions of astrophotography related items and upcoming events of the AISIG.

Clear Sky Clock for Tierra Del Sol

SDAA AISIG
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Most Recent Messages

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Re: AISIG website not showing latest image??? I figured it out. I accidentally forgot to enter information in the "Optics" field. I guess that is a required field. Jeff Posted - Mon Jul 6, 2009 6:20 pm	klomperklaus Offline Send Email
AISIG website not showing latest image??? Jerry, if you're out there... I just added an image to the AISIG website but it's not showing up on the home page or the Photos page. It does show up on my Posted - Sat Jul 4, 2009 6:32 pm	klomperklaus Offline Send Email
Webcam Service Restored All, Thanks to our club president, Webcam service has been restored! Thanks Bob!!! -Jeff [Non-text portions of this message have been removed] Posted - Fri Jul 3, 2009 5:02 pm	Jeff Lunglhofer Jeff_Lunglhofer Offline Send Email
Re: Signal to noise calculations Wodaski's chart is only true if the noise is Gaussian and the signal is constant. Thermal noise should be Gaussian. Other sources of noise may not be Gaussian Posted - Fri Jul 3, 2009 4:37 am	Randy Marsden rmarsden2 Offline Send Email
Re: Signal to noise calculations That is a little misleading. Even though there is little improvement per frame if you double the number of frames (100 vs. 200) you improve your S/N by as much Posted - Thu Jul 2, 2009 9:44 pm	Bob Nanz nanz1959 Offline Send Email
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Message History

	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
2009	38	30	53	63	28	48	8
2008	72	42	72	32	37	33	66	48	54	40	16	39
2007	52	21	99	101	25	45	36	28	130	49	43	35
2006	109	80	116	67	48	49	24	30	63	53	58	14
2005									158	99	23	39

Group Email Addresses

Related Link:	http://aisig.sdaa.org
Post message:	SDAA_AISIG@yahoogroups.com
Subscribe:	SDAA_AISIG-subscribe@yahoogroups.com
Unsubscribe:	SDAA_AISIG-unsubscribe@yahoogroups.com
List owner:	SDAA_AISIG-owner@yahoogroups.com

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