Object Info | |
Objects | NGC7293 - The Helix nebula |
Type | Planetary Nebula IV + III |
Centered at: | RA: 22:29.6 DEC: -20:48 |
Constellation | Aquarius |
Magnitude | 7.3 |
Size | 2 light years |
Distance | 425 light years (the closest planetary nebula to us) |
Age | ? |
Dimensions | > 13 arcminutes |
Image Field | 102'09" x 68'82" |
Notes |
Schuler 10nm Hydrogen Alpha and William Optics Minus Violet filters used. |
Taken from: |
Tin Shed Observatory
Gold Coast, Queensland Long - Lat = 153:23.54E - 27:56.8S |
On: | 27th July 2003 |
Image Info | |
Telescope | Synta 102mm f5 |
Focal Length | 500 millimetres |
Telescope guiding | Guided by ST5c on C11@f10 (2800mm) |
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 |
Processed with: | Mira A/P, Maxim DL, AIP4Win, CCDSharp, Photoshop |
Exposure times | Ha = 105 minutes taken as 5-minute unbinned subimages. |
Image Calibrations | All sub-images Dark Subtracted, Flat Fielded. |