California Nebula SHO and RGB stars. An emission nebula located in the constellation Perseus. It was named so because its shape roughly resembles that of the state of California. About 70 light years long, NGC 1499 is located about 1,500 light years from Earth, making it one of the closest HII regions in the solar system.
Shooting instrument: Takahashi FSQ85ED
Imaging Camera: ZWO ASI294MM Pro
Frame: ioptron cem70
Guiding instrument: ZWO OAG Off Axis Guider
Guide camera: ZWO ASI290MM
Reducer / focal length corrector: Takahashi Flattener 1.01x for FSQ-85EDX
Software: PixInsight Adobe Photoshop Photoshop 2021
Accessory: zwo asiair pro
Dates: October 10, 2021, October 14, 2021
Unit images:
ANTLIA H-Alpha 3.5nm: 35×600 “(5h 50 ‘) (gain: 120.00) -10C bin 2×2
ANTLIA OIII 3.5nm: 31×600 “(5h 10 ‘) (gain: 120.00) -10C bin 2×2
ANTLIA SII 3.5nm: 32×600 “(5h 20 ‘) (gain: 120.00) -10C bin 2×2
Astrodon Tru-Balance E-Series Gen 2 LRGB: 30×120 “(1h) (gain: 120.00) -10C bin 2×2
Integration: 17h 20 ‘
Darks: 60
Flats / PLU: 21
Dark-flats: 21
Age of the Moon (average): 6.66 days
Moon phase (average): 43.14%
Bortle darkness scale: 4.00