Clouds in the Unicorn


This is a photography of a beautiful sky zone, in the Monoceros constellation (the Unicorn).
It is a zone with very subtle deep sky objects, that in combination show a very attractive portrait.
In the image there are some reflection nebulae: NGC2170, NGC 2182, NGC 2183, NGC 2185, Ced 65, Ced 66, Ced 71, some emission nebulae (such as LBN 999), while the presence of some dark nebulae is appreciated because they are obstructing the vision of far objects.

Technical data

Acquisition site Ongamira, Córdoba, Argentina (1100 m a.s.l.)
Acquisition date 1-26-2017
Instrument Newton GSO F4 200 with GPU coma corrector.
Mount Sky-Watcher NEQ6, managed by EQmod
Guide Off-Axis, with Lodestar camera
Camera Modified Canon 600D/T3i
No IR Filter (Full Spectrum mod, using Astronomik MC Clear)
Refrigerated (regulated temperature)
Camera sensor temperature 0°C (on-sensor measured and regulated)
Filter Astronomik Clip CLS CCD
Integration 43 x 5 minutes subframes - ISO 800
Total integration time: 3 hs, 35 min
Calibration 49 flats, 400 bias, 84 darks.
Resolution 1.1 arcsec/pixel
787 mm actual focal, 4.2 um x 4.2 um pixels
Native size 5202 x 3465 pixels
Cropped size 5007 x 3210 pixels
FOV 92’ x 59’
Image center coordinates RA: 06 h 08 min 59.6 s
Dec: -06° 25' 16"
Process PixInsight 1.8