| Designation |
NGC 2359, Thor's Helmet |
| Object type |
Galactic reflection + emission nebula |
| Coordinates |
07 h 19 min
- 13° 14' |
| Constellation |
Canis Major (CMa) |
| Description |
An extremely hot Wolf-Rayet star
excites this faint wind-blown bubble nebula in a fine, dense starfield.
Strong OIII emission accounts for its blueish-green color. The field is 37 x 25 arcminutes with north towards the
top.
Click on the image for higher resolution (1500 x 1000
pixels) |
| Exposure |
LRGB 150:50:50:50 min @ -20°C,
RGB binned 2x2 |
| Camera |
SBIG STL-11000 selfguided
with Astronomik Type II LRGB filter set. |
| Optics |
RCOS 14.5" Ritchey-Chrétien
at prime focus (f/9) |
| Mount |
Astro-Physics AP1200GTO |
| Software |
MaxIm DL/CCD, Sigma Pre Beta
11, Registar, Adobe
Photoshop CS |
| Location - Date - Time |
San Esteban (Chile) - 08Jan05 (L)
and 09Jan05 (RGB) @ 06:00
UTC |
| Conditions |
Transparency 7, Seeing 7, Temperature
+ 13°C |
