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OBJECT

M1 - NGC 1952 (Crab Nebula)         (image is reduced-size | other sizes:  medium ,,original)

Distance:  6,500 light years

Telescope Takahashi TOA-130F @ f/7.7
Mount Takahashi EM200 Temma II
Camera QSI 690wsg @ -15C
Filters Astrodon Ha (3nm), Astrodon Tru-Balance I-Series LRGB Gen 2
Guider SX Lodestar
Settings 6x10min Ha, 2x5min L (bin1x1); 2x5min ea RGB (bin2x2); AstroArt5, CS4 (slightly cropped, 10xdarks/flats/fdarks/bias)

Date/Location

Notes

23 January 2018 - Las Cruces, NM

Published in Chinese National Astronomy magazine, July 2018.

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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