HFG1
HFG1 is a planetary nebula that was produced by a binary star system (V664 Cas) that is moving rapidly through our Galaxy. The star is moving towards the upper-right of the image. As HFG1 plows through the interstellar medium, a bluish bowshock is produced; and a red trail of gas is left behind in its wake. The planetary nebula Sh2-188, which is also in this image gallery, also has an asymmetric shape because of its rapid motion through space.
| Observatory: | Kitt Peak National Observatory Kitt Peak, Arizona |
|---|---|
| Telescope: | KPNO 4-Meter |
| Instrument: | Mosaic I |
| Astronomer: | T.A. Rector (University of Alaska Anchorage) and H. Schweiker (WIYN and NOAO/AURA/NSF) |
| Date of Observation: | 10-22-2011 |
| Filters and Assigned Colors: | Hydrogen alpha (red) and Oxygen [OIII] (blue) |
| Exposure Times: | 5x10min in each filter |
| Location of Image: | Cassiopeia |
| Field of View: | 26.4 x 19.7 arcmin |
| Orientation: | North is down and East is to the right |
| Link to Larger Image | |
| Link to Full Resolution Image | |
| © Copyright Statement |