BEHIND THE IMAGE
Notes from the session
This peculiar shape is evidence that NGC 1808 may have had a close interaction with another nearby galaxy, NGC 1792, which is not in the picture. Such an interaction could have hurled gas towards the nucleus of NGC 1808, triggering the exceptionally high rate of star birthSource: European Space Agency
NGC 1808 is a 40 million light-years away, and stretches about 35,000 light-years across.
Image:
59x 300s CLS-CCD light pollution filter
27x 300s Red
21x 300s Green
21x 300s Blue
Total integration 10 hours 40 minutes. Focal length: 1980mm
Hardware:
Celestron 11" EdgeHD
Celestron 0.7x EdgeHD focal reducer
Skywatcher EQ8 Pro mount
QSI 683-ws8 Camera @ -15°C
Astronomik CLS-CCD light pollution filter
Astrodon RGB Gen2 E-Series Tru-Balance filters
Starlight Xpress Lodestar X2 Autoguider
Innovations Foresight ONAG
Starlight Instruments Feather Touch Focuser
Location:
Exposed over 6 nights between 5th December 2019 and 29th January 2020
Orange zone in Brisbane, Australia. (Bortle 7)
Software:
Planning & camera alignment with Aladin 10
Captured with TheSkyX Professional
Guiding with PHD2
PixInsight: Calibrate, align, integrate, dynamic background extraction, LRGB combination, noise reduction, photometric color calibration, histogram, local histogram equalization, curves, crop.
NGC 1808 is a 40 million light-years away, and stretches about 35,000 light-years across.
Image:
59x 300s CLS-CCD light pollution filter
27x 300s Red
21x 300s Green
21x 300s Blue
Total integration 10 hours 40 minutes. Focal length: 1980mm
Hardware:
Celestron 11" EdgeHD
Celestron 0.7x EdgeHD focal reducer
Skywatcher EQ8 Pro mount
QSI 683-ws8 Camera @ -15°C
Astronomik CLS-CCD light pollution filter
Astrodon RGB Gen2 E-Series Tru-Balance filters
Starlight Xpress Lodestar X2 Autoguider
Innovations Foresight ONAG
Starlight Instruments Feather Touch Focuser
Location:
Exposed over 6 nights between 5th December 2019 and 29th January 2020
Orange zone in Brisbane, Australia. (Bortle 7)
Software:
Planning & camera alignment with Aladin 10
Captured with TheSkyX Professional
Guiding with PHD2
PixInsight: Calibrate, align, integrate, dynamic background extraction, LRGB combination, noise reduction, photometric color calibration, histogram, local histogram equalization, curves, crop.