Iota Pegasus ( Latin: Iota Pegasi ) is a binary star located in the constellation Pegasus at a distance of about 38.4 light-years from us.
| ΞΉ Pegasus | |||
|---|---|---|---|
| Star | |||
| Observational data ( Age J2000.0 ) | |||
| Right ascension | |||
| Declination | |||
| Distance | 38.3 St. years (11.75 pc ) | ||
| Visible magnitude ( V ) | +3.76 | ||
| Constellation | Pegasus | ||
| Astrometry | |||
| Radial velocity ( R v ) | -4.3 km / s | ||
| Own movement (ΞΌ) | RA: 296.73 mas per year Dec: 26.93 mas per year | ||
| Parallax (Ο) | 85.06 Β± 0.71 mas | ||
| Absolute magnitude (V) | +3.41 | ||
| Specifications | |||
| Spectral class | F5v G8v | ||
| Color Index ( B - V ) | 0.44 | ||
| Color Index ( U - B ) | 0,03 | ||
| physical characteristics | |||
| Temperature | 6700-6800 / 5100-5200 K | ||
| Luminosity | 3.7 L β | ||
| |||
| Database Information | |||
| SIMBAD | data | ||
| ARICNS | data | ||
| Sources: [1] [2] | |||
Content
Features
According to the Ninth catalog of visual orbits of binary stars , the components of system A and B are separated at an average distance of 0.051 a. e. They revolve in a circular orbit, the plane of which is turned to the earth observer by 80 Β± 13 Β°, [3] with a frequency of 10.2 days . Both components belong to the main sequence stars.
Nearest star environment
The following star systems are within 20 light-years of Pivas ΞΉ:
| Star | Spectral class | Distance, st. years old |
| Ross 271 | M2 Ve | 4.7 |
| L 1363-3 | DQ6 / VII | 5.9 |
| LP 397-34 | MV | 6.1 |
| BD + 27 4120 | M0 Ve /? | 6.7 |
| AC + 17 536-125 | M2 Ve | 6.8 |
| G 188-38 | MV | 9.3 |
| HIP 109119 | A2 V | ten |
| 51 Pegasus | G4-5 V | 15 |
| 85 Pegasus | G3-5 V / K6 V /? | 18 |
| Wolf 940 | M3.5-4 V | 18 |
| ΞΎ Pegasus | F6-7 V-III /? | 20 |
Notes
- β SIMBAD . - ΞΉ Pegasus in the SIMBAD database . Date of treatment October 29, 2009.
- β ARICNS . - ΞΉ Pegasus in the ARICNS database. Date of treatment October 29, 2009.
- β A. Tokovinin, S. Thomas, M. Sterzik, S. Udry. Tertiary companions to close spectroscopic binaries . Arxiv.org (23 Jan 2006). Date of treatment October 29, 2009.
See also
- Pegasus constellation star list