Nebula (IC 443 / Sharpless 248 (Sh2-248))
(top image is reduced-size | other sizes: medium
, original) Bottom image
is an "Ha-only" view
5,000 light years
||Takahashi FS-60C @ f/6.2
||Takahashi EM200 Temma II
||QSI 540wsg @ -10C
|| Astrodon Ha (3nm), Astrodon Tru-Balance I-Series LRGB Gen
||7x20min Ha, 3x5min L (bin1x1); 3x5min
ea RGB (bin2x2); AstroArt5, CS4 (slightly cropped, 10xdarks/flats/fdarks/bias)
|13 October 2015 - Las Cruces, NM
Published as Astronomy Magazine
Picture of the Day, 2 Aug 17 (screenshot).
Published in All About Space magazine, Issue
49, Mar 16, pg 91.
Published in Cosmic
Pursuits, 19 Jan 16.
Published 24 Dec 15 (Christmas Present!):
- 19th slot in Space.com "Space
Image of the Day (December 2015)" (screenshot)
This image is LHaRGB, where Ha was used in combination with
Luminance and Ha:R (80:20) was used for the Red channel.
Copyright Jeffrey O. Johnson