Is There a Formula for Calculating Star Altitude and Azimuth Over Time?

AI Thread Summary
Calculating the altitude and azimuth of a star at a later time using its current position without converting to right ascension (RA) and declination (DEC) is a challenge. The original poster seeks a formula to achieve this for multiple stars. While no specific formula is provided, it is noted that some telescopes can perform these calculations directly. A resource link is shared, suggesting potential tools or software that may assist in finding a solution. Further exploration of available astronomical software could yield helpful insights for this calculation.
TheSource007
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Hi all.
I have a question.
Is there a way to calculate the altitude and azimuth of a star at a given time using as an input the altitude and azimuth of that star at an earlier time, without having to convert those coordinates to RA and DEC?
The problem is that I want to calculate the position (alt,az) of a nine stars a a later time when I know where the stars are right now. I don' want to calculate the RA and DEC of each star and then calculate back. I hope that there might a formula but I haven't found it yet.
Thank you for your help
 
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hi there,

can't help on the formula, but there must be a way to do it as my telescope can do that :)

here's one site into that sort of thing, there maybe something there that can help you ?
http://www.hnsky.org/software.htm

Dave
 
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