| Name: | NGC 7635 |
| Other names: | Bubble Nebula |
| Description: | Diffuse Nebula |
| Ascension: | 23h20.7 |
| Declanation: | +61°12' |
| Apparent diameter: | 15*8 (arc min) |
| Constellation: | Cassiopeia |
| Magnitude: | 11 |
| Distance: | 11000 light years |
| Equipment: | Meade ETX90+sc3 icx424 camera f-0.3 |
| Date / Time UTC: | 21 october 2004 19:40 |
| Stacked : | 52 0f 110 |
| Exposure time: | 30 s |
| Location: | The Hague, The Netherlands |
| Other info: | Had to stop recording. Incoming clouds. The almost round 'bubble" in this photo is caused by fast stellar "wind" from a central star, known as BD+602522, impacting sparser areas of hydrogen gas and pushing them into a spherical shell. The star's radiation then causes the shell to glow. Did some Photoshop enhancing |
© Job Gehéniau
http://www.jgeheniau.nl/etx90/astronomy2.html