[Aavso-photometry] [AAVSO-DIS] SSP-4 photometer available for loan

[Dirk Terrell]

On 2/18/2008 arne wrote:
> The NIR is quite different than optical photometry.  If lambda 
> Aurigae,
> the optical comparison, is too faint, then choose another compstar 
> that
> is better suited for NIR measures.  You do not have to stay locked 
> into
> the optical comparison star.  Epsilon Aurigae is J=1.9, H=1.7.  It 
> dropped
> about a magnitude visually during the 1983 eclipse, so it should still
> be easy with a 10" telescope and the SSP-4.  Certainly more aperture
> is always nice, but not essential.

I made some measurements of Eps Aur with the SSP-4 and my 10" LX-200 a 
few years back, mainly to see if I'd be able to do anything during the 
upcoming eclipse (and decided it would work fine). I'll have to dig up 
my notes at home to see what I used for comps and settings but I don't 
recall having any major problems.

Dirk