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Contains:  Cone nebula, Christmas Tree cluster, NGC 2264, NGC 2259, The star 15Mon
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Cone Nebula, 


            Steve Siedentop
Cone Nebula

Cone Nebula

Technical card

Imaging camera:Central DS CDS600D

Mount:Advanced VX

Guiding telescope or lens:AstroTech Astro-Tech 60mm Guide Scope

Guiding camera:Orion Starshoot AutoGuider

Resolution: 5202x3465

Dates:Jan. 28, 2017

Frames: 15x300"

Integration: 1.2 hours

Avg. Moon age: 0.47 days

Avg. Moon phase: 0.25% job: 1430120

RA center: 100.322 degrees

DEC center: 9.928 degrees

Pixel scale: 2.305 arcsec/pixel

Orientation: 86.815 degrees

Field radius: 2.001 degrees

Locations: Jon Wood Astronomy Field, Mansfield, GA, United States


The Cone Nebula...among other things. Can you spot Hubble's Variable Nebula? I froze while imaging this one, but I really enjoyed processing it. In spite of the wind, the seeing wasn't nearly as bad as I thought it would be and the image turned out more nicely than I expected. I'll be revisiting this one to get some more time on it.

The Cone Nebula is an H II region in Monoceros. It was discovered by William Herschel on December 26, 1785 and is roughly 830 parsecs from Earth, which translates into roughly 2,700 light years.



Steve Siedentop
License: Attribution-NonCommercial-ShareAlike Creative Commons

Sky plot

Sky plot


Cone Nebula, 


            Steve Siedentop