The Elephant's Trunk Nebula (IC 1396A) is a concentration of interstellar gas and dust within the much larger ionized gas region IC 1396 located in the constellation Cepheus about 2,400 light years away from Earth. The nebula is a dark, dense globule that gets its name from its appearance at visible light wavelengths, where there is a dark patch with a bright, sinuous rim. The bright rim is the surface of the dense cloud that is being illuminated and ionized by a very bright, massive multiple star (HD 206267) that is just to the east of the Elephant's Trunk Nebula . The entire IC 1396 region is ionized by the massive star, except for dense globules that can protect themselves from the star's harsh ultraviolet rays.
| Object |
Elephant's Trunk Nebula (IC 1396A) |
| Constellation: | Cepheus |
| Position: | RA 21h 36m 41,0395s DEC +57° 30' 08,260" |
| Apparent Size: | arcmin |
| Apparent Magnitude: | |
| Distance in light years: | 2400 ly |
| Photo Data | |
| Date of Expose: | 26.10.2019 |
| Location: |
Knottenried/Oberallgäu/Germany (1002m ASL) GPS: 47°36’13“ N / 10°11’24“ E |
| Telescope: | TS 14" RC f/d 8.0 / 2845mm |
| Camera: | Sony A7Ra mod @ T sensor = +14.1°C |
| Field of View: | 0.72 x 0.48 deg |
| Pixel Scale/Resolution: | 0.35 arcsec/px |
| Expose frames/times: | OSC RAW 22x90s, 18 darks, ISO 3200 |
| Total expose: | 33min 0s |
| Filter: | no |
| Mount: | HPS 10Micron GM 3000 |
| Software: | DSS 3.3.4, Photoshop CC |
| Remarks: |
© Photos by Peter Cerveny
© Object description/intro text fully or partially by Wikipedia,
which is released under the Creative Commons Attribution-ShareAlike 4.0 International License