HD 98618
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| Observation data Equinox J2000.0 |
|
|---|---|
| Constellation | Ursa Major |
| Right ascension | 11h 21m 29s |
| Declination | +58° 53′ 18″ |
| Apparent magnitude (V) | 7.66 |
| Characteristics | |
| Spectral type | G5V |
| U-B color index | ? |
| B-V color index | 0.642 |
| Variable type | none |
| Astrometry | |
| Radial velocity (Rv) | 16 km/s |
| Proper motion (μ) | RA: 41.28 mas/yr Dec.: 29.19 mas/yr |
| Parallax (π) | 25.82 ± 0.86 mas |
| Distance | 126 ly (38.7 pc) |
| Absolute magnitude (MV) | 4.74 ± 0.07 |
| Details | |
| Mass | 1.02±0.03 M☉ |
| Radius | 1.00 R☉ |
| Luminosity | 1.06 ± 0.05 L☉ |
| Temperature | 5843 ± 30 K |
| Metallicity | 1.11 sol |
| Rotation | 24 days |
| Age | 4210 ± 900 million years |
| Other designations | |
HD 98618 is a star 126 light years from Earth which is almost identical in composition and size to the sun.
[edit] References
- Melendez, J., Dodds-Eden, K., Robles, J. (2006). "HD 98618: A Star Closely Resembling our Sun". (Preprint)
[edit] See also
[edit] External links
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