The Cone Nebula    NGC 2264                                  Click on photo to return to 'Diffuse Nebulae'            Home

Cone Nebula  NGC 2264  Christmas Tree Cluster

Other description: Open cluster with nebulosity.
Constellation:  Mon
Dreyer description: Extremely large nebula, 3° diameter, diameter extremely north-south extremely stars 12' southwest 15 Mon.
Magnitude:  3.9
RA: 06h 41m 06.0s  Dec: +09°53'00"  (Epoch 2000)
Azm: 233°47'25"  Alt: +48°18'31"
Rise: 13:10  Transit: 19:45  Set: 02:24
Size:60.0'

SEDS description;
NGC 2264
Diffuse Nebula and Open Cluster NGC 2264 (= H V.27 = H VIII.5), in Monoceros
The Cone Nebula and the Chrismas Tree Cluster
Right Ascension
06 : 41.1 (h:m)

Declination
+09 : 53 (deg:m)

Distance
2.4 (kly)

Visual Brightnes
3.9 (mag)

Apparent Dimension
20.0 (arc min)
William Herschel discovered the cluster in 1784, the nebula in 1785.
The Chrismas Tree Cluster and the Cone Nebula were both discovered by William Herschel. He found the cluster on January 18, 1784 and cataloged it as H VIII.5, and the nebula on December 26, 1785, and assigned it the number H V.27. The nebula belongs to a much larger complex, which is currently an active star forming region.


Photo Specifications:

      TELESCOPE:  8" Newtonian  F/5
            CAMERA:  'SBIG' ST-8XE & CFW8 color filter wheel
CAMERA TEMP:  Temp. = -17 C
                   DATE:  3/11/07

Filter
Exposure time
Number of exposures
Binning
Luminance
45 min
6
1x1
Red
30 min
6
1x1
Green
30 min
6
1x1
Blue
48 min
6
1x1
Other








  Processing;    MaxIm, DDP,  align, color combine;