Name: The Cone Nebula and Christmas tree cluster

Constellation:Monoceros

Instrument: 8-inch F5 reflector with a sky watcher coma corrector and ZWO ASI2600MC Pro (gain 100 -20C)

Exposure time: A stack of 6 five-minute and 30 three-minute exposures.

Star Chart from Michael Vlasov's Deep sky hunter star atlas available on line https://www.deepskywatch.com/deep-sky-hunter-atlas.html

  
 

Magnitude: 3.9

Angular size: 20'

This is dark cloud of material in front of an emission nebula that has the shape of a cone. The "cone" is only 3 arc minutes across but the surrounding nebulosity and open cluster make it a huge object, which fills up the entire field of view. It is another winter celestial showpiece that belongs on the list.

Go to AP#31 IC 2177

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