Antilhue - Chile
Antilhue - Chile
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| Designation | NGC 2261, Hubble's Variable Nebula |
| Object type | Reflection nebula |
| Coordinates | 06h39min +08°44' ( Monoceros ) |
| Description | With the variable star R Mon (mag 11) at the apex, this curious fan shaped reflection nebula was originally mistaken as being a comet. NGC2261 not only changes its brightness together with the exciting star but also has shown changes in its considerable structural detail over the last century. Hubble's variable nebula is only 2 x 4 arcminutes in size and shines at an estimated distance of just over 3000 light years. |
| Exposure | LRGB 60:30:30:50 min @ -15°C - 10 min individual exp. - RGB binned 2x2 |
| Camera | SBIG ST-10XE selfguided + CFW-8 with Astronomik Type II filter set. |
| Optics | RCOS 14.5" Ritchey-Chrétien @ f/9 |
| Mount | Astro-Physics AP1200GTO |
| Software | MaxIm DL/CCD, DeBloomer, Sigma Pre Beta 11, Registar, Adobe Photoshop CS |
| Location - Date - Time | San Esteban (Chile) - 26Jan2004 - 04:00 UTC |
| Conditions | Transparency 7, Seeing 5-6, Temperature +13°C |
