All Images Copyright Rod Gallagher Click on image to see full size
NGC 2261 -- Hubble's Variable Nebula
Object
|
Type |
Variable Nebula |
|
Constellation |
Monoceros |
|
Distance |
2,500 light years |
|
Magnitude |
9.0 |
|
Size |
2.0 arc-min |
|
Notes |
Also known as Caldwell 46 |
Image
|
Date |
2009-01-30 |
|
Place |
Bixhoma Observatory (H33) |
|
Exposure Data |
Lum 12 min @ -5C |
|
|
L 12x1 min |
|
Notes |
All filters binned 2x2 |
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Equipment
|
Optics |
Meade 12" RCX-400 |
|
Focal Length |
1500 mm @f/5 (f/8 with 6.3 focal reducer) |
|
Mount |
RCX-400 on Milburn Wedge |
|
Camera |
SBIG ST-10XME w/AO7 |
|
Focuser |
JMI Focuser with Robofocus |
|
Filters |
CFW-10, Astrodon LRGB |
|
Software |
TheSky6, CCDSoft, FocusMax, CCDAutopilot4, CCDStack 2+, PixInsight, PhotoShop CS6 |
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Reprocessed on 07/21/2023 |