North America and Pelican Nebulae (SHO), 2019
1,500 light-years away, the famous North America and Pelican nebulae in a star forming region in Cygnus. Probably the most celebrated summer Northern Hemisphere nebulae for all the astrophotographers. An integration of Hydrogen-α, Oxygen III and Sulfur II data that I collected during the short and bright nights of June of 2019.
Tech Card
Date / Location
3rd & 6th July 2019, Bedworth, GMT+0, United Kingdom, Bortle Class 5 ~SGM: 19.57 mag./arc sec2
Equipment
Camera: ZWO ASI 1600MM-PRO USB 3.0 Mono (Type CMOS)
Sensor Cooling Temperature: -15C
Filters: 1.25" 5nm Astrodon Ha, 1.25" 3nm Astrodon OIII, 1.25" 3nm Astrodon SII
Imaging Telescope: Takahashi FS-60CB
Correcting Lens: Takahashi Reducer 0.72x (composite focal length at 264mm and focal ratio at f/4.9)
Mount: iOptron CEM25EC
Image Quality
12Bit ADC (FITS)
Exposure time per image / number of composites and sensitivity
26 x 180" Ha subs (Unity Gain, Gain: 139, Offset: 21, Binning 1x1)
23 x 180" OIII subs (Unity Gain, Gain: 139, Offset: 21, Binning 1x1)
21 x 180" SII subs (Unity Gain, Gain: 139, Offset: 21, Binning 1x1)
Total Integration Time
3hrs 30mins
Calibration Frames
20 Darks, 20 Flats
Software
PixInsight Core 1.8 Ripley
Photoshop
SharpCap
DEEP SKY
STARSCAPE
SOLAR SYSTEM
EVENTS
