NCG2146

[size=+3]NGC 2146 Disturbed Starburst-driven superwind galaxy in Camelopardalis[size=+2] Date: November 22-25, 2006 Camera: SBIG STL6303E Filters:  AstroDon LRGB Camera control software:  CCDSoft Guiding/adaptive optics: AO-L Camera temperature:  -20C Image Acquisition Software:  CCDAP3 Telescope:  RCOS 16 Carbon Tube, Aries optics, F9 with Field Flattener Telescope control software:  RCOS TCC, TheSky6 Mount:  Paramount ME (MKS 4000) Subexposures:     Total exposure time: 980 minutes        Luminance:  42 x 10 minute, binned 1x1 (best 42 of 72 total Luminance exposures selected)        RGB: 18 x10 minute Red, 19 x 10 minute Green, 19 x 10 minute Blue, binned 1x1 Conditions: Seeing conditions over 4 nights averaged 2-2.5 arc sec; target elevation from 31 degrees to 48 degrees. FWHM of combined Luminance data: 2.49 arc sec raw, 1.87 arc sec deconvolved. Processing: CDSoft, Sigma, Registar, CCDInspector, MaximDL, MiraAP, CCDSharp, Photoshop CS2.

                               
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来源: http://www.spotastro.com/NGC_2146_Large.html

                               
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[ 本帖最后由 寻找拉玛 于 2007-8-6 09:50 编辑 ]

来源: http://rdelsol.com/Galaxy/NGC2146_trifid.html

                               
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[ 本帖最后由 寻找拉玛 于 2007-8-6 09:39 编辑 ]

来源: http://www.noao.edu/outreach/aop/observers/observer139.html

                               
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[ 本帖最后由 寻找拉玛 于 2007-8-6 09:43 编辑 ]

来源: http://www.skyimager.com/imagedata/NGC2146_12-02-05.html

(Click on image for Full Resolution)

Date:	November 2, thru December 2, 2005
Exposure:	LLRGB: 300:135:135:180 30 x 600s L, 9 x 900s R, 9 x 900s G, 12 x 900s B
Processing:	CCDAutoPilot2 in control for all images - CCDSoftV5 for image acquisition. MaxIm for image calibration,(5 each RGB flats, bias subtracted and median combined, 60 bias frames median combined, 20-900s darks Sigma Reject combined), alignment, normalization, stretch, and RGB combine. 3 iterations of CCDSharp on the Luminance layer. Photoshop CS for RGB processing,final adjustment and jpg conversion.
Conditions:	Good, clear with nice transparency and lower humidity (60-70%) Mag 4-5 Skies
Scope:	RCOS 16" Truss @ f/6
Camera:	ST-10XME/CFW-8A -10°
Comments:	A peculiar type Sb galaxy in Camelopardalis that is approx. 41 million light years away. I started collecting the data on November 2nd and due to weather and just generally very poor seeing for almost a month, I wasn't able to get good Lum. data. On December 1st it cleared and the sky settled and I was able to take 5 hours of additional Lum exposures. I used CCD Inspector to rank the images by FWHM and picked the best 30 for the Lum layer. The second set of data I took was after the addition of the RCOS field flattener. This definitely helped get tighter stars for the Lum layer.

                               
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[ 本帖最后由 寻找拉玛 于 2007-8-6 09:52 编辑 ]

来点文字说明吧！

来源: http://www.astrooptik.com/Bildergalerie/PolluxGallery/NGC2146.htm

CCD: Exposure Time: Instrument: Focal Length: Filter: Corrector: Raw FWHM (Seeing): Image Processing: Sky Conditions: Who ? Problems/Comments:

SBIG ST10 ME L=8x200s 1xBin, R,G,B=5x2m 2xBin Pollux 0.8m azimutal mounted telescope 3557mm (=140 inch) f/4.44 SBIG Filter Set provided with the CFW8 3-lens Wynne corrector average of 1.94 arc seconds MaximDL LRGB composit, PS 5.5 Above average seeing and good transparency. Some slightly tracking error visible because the galaxy passed the zenith at very small distance. Philipp Keller and Christian Fuchs the galaxy is currently undergoing a burst of star formation which was caused by a strong tidal interaction with its neighbur galaxy NGC 2146A.

Get back to the other Pollux Images here
Check out the 1.2m T1T Image here

                               
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[ 本帖最后由 寻找拉玛 于 2007-8-6 09:51 编辑 ]

来源: http://home.tiscali.de/heutz/ds/galaxien/ngc2146.htm

                               
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[ 本帖最后由 寻找拉玛 于 2007-8-6 09:48 编辑 ]

最后几张相当PL啊。。。。。。。。

重新编辑了一下，把PL的图放在了前面。文字说明是外文，水平有限以后再慢慢翻译。