Enif
| Observation Data Epoch J2000 | |
|---|---|
| Variability | |
| Spectral Type | K2Ib |
| Right Ascension | 21:44:11.16 |
| Declination | +09:52:30.01 |
| Distance | 672.18 light years (206.19 parsecs) |
| Apparent Magnitude (V) | 2.38 |
| Physical Characteristics | |
| Mass | ~21.88 x 1030 kg (11 M☉) |
| Radius | 104.4 million km (150 R☉) |
| Colour (B-V) | 1.52 (red) |
| Colour (V-I) | 1.52 |
| Absolute Magnitude (V) | -4.19 |
| Luminosity (V) | 6700 L☉ |
| Surface Temperature | 3952 K |
| Age | |
| Rotation Period | |
| Oscillation Period | |
| Notable Features | |
| Other Designations | HIP 107315 |
| System | |
| Stellar Components | |
| Stellar Companions | |
| Planets and Minor Bodies | |
Enif is the proper name of the star ε Pegasi in the Pegasus constellation. It is fairly average for an orange supergiant star, well into the later stages of its stellar evolution and as such may be considered a dying star. Enif likely only has a few million years left to go, although it is unknown whether it will explode in a supernova or simply die off as a white dwarf, due to its mass straddling the dividing line between stars destined to explode or not. Enif has been observed to brighten radically upon a few occasions, giving rise to the theory that it (and possibly other supergiants) erupt in mssive flares that dwarf those of our own Sun.
The word "Enif" is derived from the Arabic word for "nose", due to its position as the muzzle of Pegasus.
Categories: Star stubs | Bayer objects | Orange supergiants | Pegasus constellation