[AZ-Observing] Re: Telrad stellar limit

Thanks to all for your input.  I'll try some of your suggestions especially 
ones from Dean and Brian.  While I didn't indicate my hopes were to seen 
stars down to 4th mag in a Telrad.  Seems like this requirement has not only 
been met but was far exceeded by, shall I say it, orders of magnitude.

Reason for the question?  I'm considering a replacement of my 9X50 finder 
with a Telrad and set the limit at 4th mag for the go/no go decision.  Now 
to look at Telrads.

Again, thanks to all of your input.

AJ Crayon
Phoenix, AZ

----- Original Message ----- 
From: "AJ Crayon" <acrayon@xxxxxxx>
To: "SAC Forum" <sac-forum@xxxxxxxxxxxxx>; "AZ Observing" 
<AZ-Observing@xxxxxxxxxxxxx>
Sent: Sunday, April 20, 2008 6:27 PM
Subject: [AZ-Observing] Telrad stellar limit


No, this doesn't have anything to do with the human Telrad, Rick Tejera. 
Sorry 'bout that Rick.
To those that have Telrads as finders on a telescope - what is the stellar 
limit range you have seen?  I'm not interested in the averted vision limit, 
if averted vision is even possible.  Nor am I interested in the limit based 
on waiting for a moment of better seeing condition, or even using a hood.

The limit that is of interest is what can be reasonably seen, especially 
while varying the red lit concentric circles.  Obviously the brighter the 
circles the harder it is to see the stellar limit.  Turning the intensity 
down, to even off, would give the better chances for seeing the lower limit.

It is expected this lower limit would be a range based on a number of 
observations from a number of observers.  It is the range that is of more 
interest than just one number.  For example one observer may have seen 4th 
mag and another 6th mag.  That's the kind of range of interest.

AJ Crayon
Phoenix, AZ

--
See message header for info on list archives or unsubscribing, and please
send personal replies to the author, not the list.

--
See message header for info on list archives or unsubscribing, and please 
send personal replies to the author, not the list.

Other related posts: