[Aavso-photometry] NEw or used CCD's

[David Higgins]

I’ve never used scopes that small for any CCD work (other than autoguider)
but in theory a 5” or 6” scope would do OK for stars up to about Mag 8-9
(though B may be a bit of a struggle – or long exposure).

 

Cheers

 

David

 

From: BFerguson at ucok.edu [mailto:BFerguson at ucok.edu] 
Sent: Sunday, 2 December 2007 3:08 AM
To: David Higgins
Cc: aavso-photometry at mira.aavso.org
Subject: RE: [Aavso-photometry] NEw or used CCD's

 

Thank you David.

 

I do B and V on the AAVSO PEP list which, generally, is stars greater than
8th magnitude.  Since a CCD has so much greater sensitivity than a
photoelectric photometer, I wondered if observations of the same caliber
could be made using a CCD on a scope of only five or six inches aperture
instead of a photometer on eight..

 

It's something I have never seen addressed and the discussion on older CCD
chips brought it to mind.

 

Brad

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