Rosette Nebula (SHO), 2019

Date / Location

26th & 27th February, 25th, 28th March 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

50 x 180" Ha subs (Unity Gain, Gain: 139, Offset: 21, Binning 1x1)

42 x 180" OIII subs (Unity Gain, Gain: 139, Offset: 21, Binning 1x1)

42 x 180" SII subs (Unity Gain, Gain: 139, Offset: 21, Binning 1x1)

Total Integration Time

6hrs 42mins

Calibration Frames

20 Darks, 20 Flats

Software

PixInsight 1.8 Core

Photoshop

SharpCap