H-alpha only view - click image to enlarge.


NGC 2264 (Cone Nebula) and surroundings (image is reduced-size | other sizes:  medium ,,original)

Distance:  2,700 light years

Telescope Takahashi FS-60C @ f/6.2
Mount Takahashi EM200 Temma II
Camera QSI 540wsg @ -15C
Filters Astrodon Ha (3nm), Astrodon Tru-Balance I-Series LRGB Gen 2
Guider SX Lodestar
Settings 11x20min Ha, 4x5min L (bin1x1); 3x5min ea RGB (bin2x2); AstroArt5, CS4 (slightly cropped, 10xdarks/flats/fdarks/bias)

26,29 January 2017 - Las Cruces, NM

Published as Astronomy Magazine Picture of the Day, 12 Feb 18 (screenshot).
in BBC Sky at Night Magazine, Apr 2017 online gallery (screenshot).

Imaged over 2 nights. 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

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