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NGC 598 (Triangulum Galaxy) + H-alpha
(click either [top or bottom] image for full-scale)
3 million light years
Top image = final LHaRGB result. Bottom image compares
LRGB to LHaRGB.
||Takahashi TOA-130F @ f/7.7
||Takahashi EM200 Temma II
||QSI 540wsg @ -10C
||Astrodon Tru-Balance I-Series LRGB Gen
2, Astrodon Ha (3nm)
|| 13x10min L; 1x20min,1x10min Ha (bin1x1); 5x3min ea RGB (bin2x2); AstroArt5, PS7/CS4 (slightly cropped, 10xdarks/flats/fdarks/bias)
| 23 September 2013 (Ha), 6 November 2012 (LRGB) - Las Cruces, NM
Astronomy Magazine Picture of the Day, 29
Jan 14 (screenshot).
Published in YahooNews,
17 Jan 14 (screenshot).
Published in Space.com,
16 Jan 14 (screenshot).
- 16th slot in Space.com "January 2014 Night Sky Photos"
Published in One-Minute
Astronomer, 8 Oct 13.
Process notes: Some details on "Ha" and this image are in my
Copyright Jeffrey O. Johnson