39 Arietis
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| Observation data Epoch J2000 Equinox J2000 |
|
|---|---|
| Constellation | Aries |
| Right ascension | 02h 47m 54.54s [1] |
| Declination | +29° 14′ 49.6″ [1] |
| Apparent magnitude (V) | 4.51 |
| Characteristics | |
| Spectral type | K1.5 III[2] |
| U−B color index | 1.05 |
| B−V color index | 1.11 |
| R−I color index | 0.58 |
| Variable type | Variable star |
| Astrometry | |
| Radial velocity (Rv) | -14.9 km/s |
| Proper motion (μ) | RA: 149.47 ± 0.25 [1] mas/yr Dec.: -127.05 ± 0.18 [1] mas/yr |
| Parallax (π) | 19.01 ± 0.21[1] mas |
| Distance | 172 ± 2 ly (52.6 ± 0.6 pc) |
| Details | |
| Radius | 11.1 ± 0.8[2] R☉ |
| Other designations | |
| Database references | |
| SIMBAD | data |
| Data sources: | |
| Hipparcos Catalogue, CCDM (2002), Bright Star Catalogue (5th rev. ed.) |
|
39 Arietis is a star in the constellation Aries. Its apparent magnitude is +4.52.
[edit] References
- ^ a b c d e van Leeuwen, F. (2007). "HIP 13061". Hipparcos, the New Reduction. http://webviz.u-strasbg.fr/viz-bin/VizieR-5?-out.add=.&-source=I/311/hip2&recno=13028. Retrieved 2009-12-09.
- ^ a b Nordgren, Tyler E. et al. (December 1999), "Stellar Angular Diameters of Late-Type Giants and Supergiants Measured with the Navy Prototype Optical Interferometer", The Astronomical Journal 118 (6): 3032-3038, Bibcode 1999AJ....118.3032N, doi:10.1086/301114
[edit] External links
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