TZ Arietis
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| Observation data Epoch J2000 |
|
|---|---|
| Constellation (pronunciation) |
Aries |
| Right ascension | 02h 00m 13.2s |
| Declination | +13° 03' 08" |
| Apparent magnitude (V) | 12.31 |
| Characteristics | |
| Spectral type | M4.5 V |
| U-B color index | 1.33 |
| B-V color index | 1.81 |
| Variable type | Flare star |
| Astrometry | |
| Radial velocity (Rv) | -26. km/s |
| Proper motion (μ) | RA: 1117 mas/yr Dec.: -1774 mas/yr |
| Parallax (π) | 224.80 ± 2.90 mas |
| Distance | 14.5 ± 0.2 ly (4.45 ± 0.06 pc) |
| Absolute magnitude (MV) | 14.07 |
| Details | |
| Mass | 0.089 M☉ |
| Radius | ? R☉ |
| Luminosity | 0.00021 L☉ |
| Temperature | ? K |
| Metallicity | ? |
| Rotation | ? |
| Age | ? years |
| Other designations | |
TZ Arietis is a red dwarf star in the constellation Aries. This star is far too faint to be seen with the unaided eye, although it lies relatively close to our Sun at a distance of about 14.5 light years. It is a flare star, which means it can suddenly increase in brightness for short periods of time.
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