32 31 30 29 28 27 26 25 24

NGC 2264


NGC 2264: Cone Nebula and Vicinity in Monoceros

RA = 6 hrs 41 min; Dec = 9 deg 53 min

Date & Site:

Imaged on 1/10/14 and 1/21/14; Runningman Observatory, Carlsbad, CA

Clear; very good seeing; very good transparency

Temperatures in low 50s


Telescope: Takahaski FSQ106 Refractor (540mm fl f/5)

Mount: Losmandy G-11 with Gemini
Camera: ST-10XME; CFW10 with 3 nm Astrodon filters;

Autoguided with a 100 mm guidescope and SBIG guide camera


Exposures and filters: 3 hrs of Ha; and 1.25 hr each of OIII and SII (15 min subexposures) for a total of 5.5 hrs.

Color mapped using the Hubble Palette assigning Hydrogen alpha to Green; doubly ionized oxygen to blue and ionized sulfur to red

FOV =96 x 65 arc minutes

The Cone Nebula (located at the left edge of this image) is an HII emission region in Monoceros. The cone's shape comes from a dark absorption nebula consisting of cold molecular hydrogen and dust blocking a faint background emission nebula. The cone itself is approximately seven light-years long. This wide-field image also shows the Christmas Tree nebula and the Fox Fur nebula as you view from left to right.

Located 2,500 light years away

Reduced 60% from original

Back to Images