Variable Stars
Variable Star R Andromeda
Variable Star R Andromeda
Here is another path you can take in your amateur astronomy journey, variable star observations. This is a view of the star R Andromeda (R And) taken on 14 Nov 22 and 14 Dec 22 showing the change in brightness over that 30-day period. This star will change in brightness from magnitude 5.8 down to 14.9 and back again over a period of 409 days. You can read more about these types of variable stars at (https://en.wikipedia.org/wiki/Mira_variable). While you need specific filter sets to submit your variable star data measurements to variable star organizations, my observations, for the moment, are for my own knowledge bank.
Tech Specs: Meade 12” LX-90 and 8” Orion RC, ZWO AS071 running at -10C, Celestron CGEM-DX mount, ZWO ASIAir Plus, ZWO EAF, 30 x 60 second exposures, darks from the library and flats after the imaging session. Image Date: Nov 14, 2022 and Dec 14 2022. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Tech Specs: Meade 12” LX-90 and 8” Orion RC, ZWO AS071 running at -10C, Celestron CGEM-DX mount, ZWO ASIAir Plus, ZWO EAF, 30 x 60 second exposures, darks from the library and flats after the imaging session. Image Date: Nov 14, 2022 and Dec 14 2022. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Mira-Type Variable Star R Andromedea
Mira-Type Variable Star R Andromedea
Latest observation data on Mira-Type variable star R Andromedea. According to the ASAS-SN Variable Stars Database, this star has a period of 219 days. I’ve selected four long-period variable stars to observe and record over the next several years. The graph shows observations on this star over the last 75 days.
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at -10C, Celestron CGEM-DX mount, 15 x 60 second guided exposures, focused with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using DSS and PixInsight. Image Date: January 9, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).
Tech Specs: Sky-Watcher Esprit 120ED Telescope, ZWO AS2600mc-Pro running at -10C, Celestron CGEM-DX mount, 15 x 60 second guided exposures, focused with a ZWO EAF, controlled with a ZWO ASIAir Pro. Processed using DSS and PixInsight. Image Date: January 9, 2023. Location: The Dark Side Observatory (W59), Weatherly, PA, USA (Bortle Class 4).