IC1805_2009-10-18

Nebulae - IC 1805

R.A.: 02h 32m 35.57s
Dec.: 61° 29' 2.3"
Mag.: 18.3

The Heart Nebula, IC 1805, lies some 7500 light years away from Earth and is located in the Perseus arm of the Galaxy in the constellation Cassiopeia. This is an emission nebula showing glowing gas and darker dust lanes. The nebula is formed by plasma of ionized hydrogen and free electrons. The very brightest part of this nebula (the knot at the right) is separately classified as NGC 896, because it was the first part of this nebula to be discovered.

© Wikipedia

IC 1805 – Heart Nebula

Date/time:
14.10.2009 22:25 to 15.10.2009 01:00
19.10.2009 01:49 to 19.10.2009 05:15
Az./Alt. positions:
47° / 61° to 17° / 77°
340° / 77° to 313° / 55°
Ambient conditions: 5°C, transparency 4/5, seeing: 3/5
Location: Trier, Germany

Equipment:
Optics: TMB 92 SS f/5.5 with TSFlat 2
Mount: CGE
Guiding: selfguiding with ST-4000XCM
Camera: SBIG ST-4000XCM
Filter: IDAS LPS

Acquisition:
Software: Maxim DL 5
FOV, Image scale: 100.9 x 100.9 arcmin, 3.01 arcs/pixel
Sub-exposures: 5h 45min (15 x 15min + 12 x 10min) lights at –35°C with dithering,
100 x 15min + 100 x 10min @-35°C dark frames,
40 x 0.1s EL flats,
100 bias for flats calibration

Processing:
Maxim DL 5: Calibration, registering and SD Mask stacking
Images plus 3.75: DDP
CS3: Curves and levels, Match color, Surface blur,
Carbonis Actions, GradientXterminator,
Noiseware Professional

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Filename: nebulae/ic1805_2009-10-18_full.jpg
Filesize: 2725923 Kb
Download limit: unlimited

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