Antilhue - Chile

NGC 2261  - Hubble's variable nebula
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Image Data

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