02  August  2016
  NGC300 Galaxy at Sculptor

 By     Ernesto Luppino

NGC300 is a faint galaxy in the austral Sculptor constellation.
This galaxy is located at about 6 million light-years away from Earth. This is a typical spiral galaxy and its plane is tilted 42° respect to our line of sight.
Its spiral arms show a bluish coloration because in these areas new stars are being produced, while the central part with older stars is more yellow.
There are also some reddish spots revealing the places where the energetic radiations coming from the massive young stars are heating and ionizing the gases.

The image centre is located at the coordinates: RA: 00h 54m 57s, Dec: -37° 40’ 20”, Rotation -173°.
Image data:
_ 20 x 600 sec light frames at ISO 1600 (total integration time 3 h 20 min), calibrated with 300 bias, 49 flat and 53 dark frames
_ FOV: 58’x33’ (crop from the original 95’x 63’ image)
_ Native size (after crop): 3200 x 1800 Pixels
_ Resolution: 1.1 arcsec/pixel (787 mm focal length with 4.2x4.2 µm camera pixels)
_ 100% Processed with PixInsight 1.8
Equipment data:
_ Telescope: Newton GSO F4 200 with GPU comma corrector.
_ Camera: Canon 600D/T3i modified camera with Astronomik CLS CCD filter (IR filter removed, full spectrum mod using Astronomik MC Clear) and refrigerated (temperature regulated).
_ Sky Watcher NEQ6 mount controlled with EQMod
_ Off-Axis guided with StarLight Xpress Lodestar camera
Acquisition data:
_ Place: Pueblo Doyle, Buenos Aires, Argentina (small town, rural site, seeing from poor to good, high humidity, S 33° 54’ / W 59° 49’)
_ Date: November 7th, 2015


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