SUNSET: 
0
Photographer:
Mark Germani
Location of Photo:
Vancouver, BC, Canada
Date/Time of photo:
September 6, 10 & 17, 2025
Equipment:
Astro-Tech AT92 telescope, ZWO ASI533MC Pro camera, Optolong L-Pro filter, iOptron CEM26 mount
Description:
NGC 7789 (Caroline's Rose) is a particularly beautiful open star cluster located 8,000 light-years away just off the tip of Cassiopeia. Just below and to the left of it is WY Cas, a Mira-variable star with an 18-month period alternating between magnitude 7 and 14. I imaged NGC 7789 over three nights, with a total of 8 hours integration time.
