Y Lyncis
From Infogalactic: the planetary knowledge core
| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Lynx |
| Right ascension | 07h 28m 11.61802s[1] |
| Declination | +45° 59′ 26.2366″[1] |
| Apparent magnitude (V) | 6.98 |
| Characteristics | |
| Spectral type | S |
| Variable type | Semiregular variable |
| Astrometry | |
| Radial velocity (Rv) | 5.50 ± 0.6 km/s |
| Proper motion (μ) | RA: 0.23 ± 1.17[1] mas/yr Dec.: -3.41 ± 0.60[1] mas/yr |
| Parallax (π) | 3.95 ± 0.95[1] mas |
| Distance | approx. 800 ly (approx. 250 pc) |
| Details | |
| Other designations | |
Y Lyncis is a star in the constellation Lynx. It is a red giant of spectral type S. It has been classified as a semiregular variable.[3] A popular star with amateur astronomers, it ranges in brightness from magnitude 6.2 to 8.9.[4] Its changes in brightness are complex, with a shorter period of 110 days due to the star's pulsations, and a longer period of 1400 days possibly due to the star's rotation or convectively induced oscillatory thermal (COT) mode.[5] It has an estimated diameter around 580 times that of the Sun, is around 1.5 to 2 times as massive, and has a luminosity around 25,000 times that of the Sun.[4]
References
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