8 Aquarii
8 Aquarii (abbreviated 8 Aqr) is a blue-white sub-giant of the spectral class A4IV in the constellation Aquarius. 8 Aquarii is the Flamsteed designation. It has an absolute magnitude of 6.775. It is approximately 290 light-years away from Earth, based on parallax.[1] It is approximately 1.7 solar masses and about 3 times hotter than the Sun and thus allows lines of ionized metals with an abundance of metals.
| Observation data Epoch J2000 Equinox J2000 | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 20h 59m 54.82678s[1] |
| Declination | −13° 03′ 05.8699″[1] |
| Apparent magnitude (V) | 6.60[2] |
| Characteristics | |
| Spectral type | A3/4 IV[3] |
| Astrometry | |
| Proper motion (μ) | RA: -27.46[1] mas/yr Dec.: 1.89[1] mas/yr |
| Parallax (π) | 11.40 ± 0.85[1] mas |
| Distance | 290 ± 20 ly (88 ± 7 pc) |
| Other designations | |
| Database references | |
| SIMBAD | data |
References
- van Leeuwen, F.; et al. (2007). "Validation of the new Hipparcos reduction". Astronomy and Astrophysics. 474 (2): 653–664. arXiv:0708.1752. Bibcode:2007A&A...474..653V. doi:10.1051/0004-6361:20078357.
- Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
- Houk, N.; Swift, C. (1999). "Michigan catalogue of two-dimensional spectral types for the HD Stars, Vol. 5". Michigan Spectral Survey. 5. Bibcode:1999MSS...C05....0H.
External links
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