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Object Info
Object Name The keyhole Nebula around Eta Carina
Type Emission Nebula;
Location RA: 10h 43.8m Dec: -5952'
Constellation Carina
Magnitude ?
Size 200 light years
Distance 6000 light years
Age ?
Dimensions 120' x 120'
Image Field 68'82" x 102'09"
Notes This is a HaRGB Image.
A Schuler (10nm) Hydrogen Alpha Filter was used for the Luminance channel.

William-Optics Minus-Violet filter used for all exposures.
Taken from: Tin Shed Observatory
Gold Coast, Queensland
Long - Lat = 153:23.54E - 27:56.8S
On: 26-1-2003 and 27-01-2003

Image Info
Telescope Synta 102mm f5 Achromat Refractor
Focal Length 500 millimetres
Telescope guiding Pixcel 255 at 2800mm (C11)
Telescope control Astrometric Sky Walker II
CCD camera SBIG ST-10xe
Camera cooling Regulated Thermoelectric
Camera pixels 2184 x 1472 x 6.8um
Image scale 2.8 arcseconds per pixel unbinned
Processed with: Mira A/P, Maxim DL, AIP4Win, CCDSharp, Photoshop
Hydrogen Alpha Exposures Ha = 60 minutes taken as 3-minutes unbinned.
Image Calibrations All sub-images Dark Subtracted, Flat Fielded.