NGC1579 Northern Trifid

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2015/12/09 - NGC 1579 (also known as the Northern Trifid) is a diffuse nebula located in the constellation of Perseus. It is referred to as the Northern Trifid because of its similar appearance to the Trifid Nebula, which is located in the southern celestial hemisphere of the sky. It is a H II region, a region of star formation.

Object information
Name : NGC1579 Northern Trifid
Type : Nebula
Constellation : Perseus
Distance : 2K light-year
Apparent dimensions : 12' x 8'

Image information
Image date : 2015/12/09, 2015/12/10, 2015/12/11, 2015/12/12, 2015/12/14, 2016/02/07, 2016/02/10
Right ascension : 4:30:13.803
Declination : 35°16' 17.51"
Focal length : 1686.15 mm
Focal ratio : f/6.64
Image resolution : 0.661 arcsec/pixel
Field of view : 35' 38.3" x 26' 39.3"
Sky quality : 21.70 mag/arcsecond2
Sensor temperature : -20°C
Light frames : 27 hours total exposure time
47x 900 sec. luminance unbinned
26x 900 sec. red unbinned
20x 900 sec. green unbinned
15x 900 sec. blue unbinned
Image acquisition with ACP Observatory Control Software, ACP Scheduler and Maxim DL
Auto-guiding with Maxim DL
Auto-focusing with FocusMax
Bias frames : 100x unbinned
Dark frames : None
Flat frames : 20x luminance unbinned
15x RGB unbinned
Automated sky twilight flats with ACP
Processing : PixInsight for calibration, alignment and integration.
Adobe Photoshop CS6 for final touch.

Equipment information
Telescope : Orion Optics 10" ODK
Corrector : None
Focuser : Baader SteelTrack with SteelDrive
Mount : Mesu Mount 200 with Sidereal Technology SiTech Controller
Camera : QSI 683wsg-8 cooled CCD camera with Kodak KAF-8300 sensor and Off Axis Guide (OAG) port
Guidecamera : Starlight Xpress Lodestar autoguider
Filters : Astrodon Tru-Balance E-Series LRGB & Astrodon 3nm H-α, 3nm O-III, 3nm S-II and 3nm N-II
Observatory site :, Hautes-Alpes, France