Search the Community
Showing results for tags 'binary or not?'.
Found 1 result
-
If you may recall, my first official IRVEES observations targeted the star HAT-P-22 and its Hot Jupiter exoplanet. Those observations showed something I wasn't aware of before: a binary companion to HAT-P-22. Or so it seems. This star has very little information about it. In fact, I can't find anything relating to it! So for now, I've given it an IRVEES Star Catalog designation of ISC 50750. The digits to the designation come from the star's declination of about 50* 07' 50". If this is an actual binary companion to HAT-P-22, then it will be renamed HAT-P-22B. But if this is an optical binary, it will keep its current ISC designation. I plan on doing some SCIENCE! with this star. One of the keys to figuring out if this is a true binary system is to see if ISC 50750 has a smaller spectral type than HAT-P-22. The primary has a spectral type of about G5V. If ISC 50750 has an ST of G9V/K0V or lower, then it may be a companion to HAT-P-22. Distance to this star will also have to be found. Regular analysis of ISC 50750 is not all I'm planning. I might want to search for planets around this star, since it is such a convenient target. ISC 50750 is about magnitude 10 and is not too hard to separate from HAT-P-22. Also, if HAT-P-22b is't transiting, then it poses no issues to my observations of ISC 50750. So what do you guys think? Do you know anything else about ISC 50750, or do you want me to search for transiting exoplanets around it? Also, here's a picture of the system so you guys know what I'm talking about (HAT-P-22 is the larger star):
