From: Vibhu Veerabadrappa 
To: John Murray , atm{at}shore.net
Reply-To: Vibhu Veerabadrappa 


Hi John,

Thanks for your offer to help. I think we should wait a few days and see if
someone comes up with the value for K before you take the trouble of
scanning the article for me. I will let you know.

In the meantime, I am trying to collect other freeware which are supposed to
help aim the dob. The BASIC program by Taki looks useful, but I am not able

to compile it. Also, I am thinking of star hopping, following the suggestions
from the ATM members -- try out other easier objects.

Vibhu.

John Murray wrote:

> G'day Vibhu
>         The April 1982 edition of Astronomy has an article on making
> setting circles for dobs. Quoting from the article "You need three
> things, Graduated circles, A calculator that handles trig functions and
> a few equations". If you want I could condense the thing for you or scan
> it and send. However, there is one thing I don't have. One of the
> equations to find mean sidereal time at 0 o'clock on any day at
> Greenwich has the variable K. Here it is. "GMST = K + 0.0657098232 x day
> number" The variable K changes annually and the issue only has the value
> of K up to 2000. If someone could decipher what K represents and/or
> point to where we can find out the rest of it is easy. The value of K
> for 2000 is 6.59878800.
>         The good thing about these  calcs is that they enable you to
> find objects in the daytime as well.
>
> Cheers
>
> John Murray
> Whyalla
> South Australia
> Our ATM page is at
> http://astronomy.sa86net.com

--
Vibhu Veerabadrappa, Sr. CAE, Apollo/Astro       Synopsys Corporation
445 N Mary Street, Sunnyvale CA 94085              408-390-3021 (C)
mailto:Vibhu{at}synopsys.com                          650-584-5771 (O)
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