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M44 --- The Beehive Cluster

From the author of   Welcome to the Universe in 3D

Click here for Hertzsprung-Russell diagram.

21:33 EST Mar 5, 2010.
Starlight Express SXV-H9 on 4" Tak FSQ-106 at f/5.
R = 10x8 secs + 3x80 secs, G = 5x8 secs + 3x80 secs, B = 10x8 secs + 3x80 secs (unguided subexposures).
Log stretch.

21:40 EST Apr 25, 2023.
ZWO ASI2400MC Pro on 10" RCOS at f/9.
120 2-second exposures (stacked and saved every 1-minute in Sharpcap).
Nonlinear curves stretch.

20:45 EST Mar 20, 2021.
Starlight Express SXV-H9 on 10" RCOS at f/9.
Panorama of two images. Each is a stack of L = 6x10 secs, R = 6x20 secs, G = 6x20 secs, B = 6x20 secs (unguided subexposures).
Nonlinear stretch.

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