Iota Lyrae
| Observation data Epoch J2000.0 Equinox J2000.0 |
|
|---|---|
| Constellation | Lyra |
| Right ascension | 19h 07m 18.13s |
| Declination | +36° 06′ 00.6″ |
| Apparent magnitude (V) | 5.22 |
| Characteristics | |
| Spectral type | B6IV + ? |
| Orbit | |
| Period (P) | 216.93 yr |
| Semi-major axis (a) | 0.172″ |
| Eccentricity (e) | 0.637 |
| Inclination (i) | 145.5° |
| Longitude of the node (Ω) | 171.4° |
| Periastron epoch (T) | B 1997.28 |
|
Argument of periastron (ω) (secondary) |
201.2° |
| Astrometry | |
| Radial velocity (Rv) | -26.00 ± 4.6 km/s |
| Proper motion (μ) |
RA: -1.04 ± 0.16 mas/yr Dec.: -4.29 ± 0.20 mas/yr |
| Parallax (π) | 3.64 ± 0.20mas |
| Distance | 900 ± 50 ly (270 ± 20 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
ι Lyrae, Latinised as Iota Lyrae, is a binary star in the constellation Lyra. Its apparent magnitude is 5.22. Located around 275 parsecs (900 ly) distant, it is composed of a blue subgiant primary of spectral type B6IV and an unknown secondary separated by 0.08 arcseconds.
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