35 Aquarii
| Observation data Epoch J2000.0 Equinox J2000.0 (ICRS) | |
|---|---|
| Constellation | Aquarius |
| Right ascension | 22h 08m 58.99033s |
| Declination | −18° 31′ 10.5372″ |
| Apparent magnitude (V) | 5.80 |
| Characteristics | |
| Spectral type | B2 III |
| B−V color index | −0.154±0.006 |
| Astrometry | |
| Radial velocity (Rv) | −7.2±0.6 km/s |
| Proper motion (μ) | RA: −0.102 mas/yr Dec.: −8.110 mas/yr |
| Parallax (π) | 1.5115±0.1129 mas |
| Distance | 2,200 ± 200 ly (660 ± 50 pc) |
| Details | |
| Mass | 10.1±1.0 M☉ |
| Luminosity | 1,622 L☉ |
| Surface gravity (log g) | 3.31±0.10 cgs |
| Temperature | 17,400±300 K |
| Rotational velocity (v sin i) | 10 km/s |
| Age | 22.5±2.6 Myr |
| Other designations | |
| 35 Aqr, BD−19°6227, HD 210191, HIP 109332, HR 8439, SAO 164888, WDS J22091-1829 | |
| Database references | |
| SIMBAD | data |
35 Aquarii, also known by its Flamsteed designation, is a single star located approximately 2,200 light years away from the Sun in the zodiac constellation of Aquarius. It is visible to the naked eye as a faint, blue-white star with an apparent visual magnitude of 5.80. This object is moving closer to Earth with a heliocentric radial velocity of −7 km/s, and is suspected to be a runaway star, potentially ejected from an open cluster due to a binary–binary interaction.
This star is a blue giant with a stellar classification of B2 III, indicating that it is a massive star that has evolved off the main sequence. With an age of around 22.5 million years, it has a relatively low projected rotational velocity of 10 km/s. The star has a mass of 10 times the mass of the Sun and is radiating 1,622 times the Sun's luminosity from its photosphere at an effective temperature of 17,400 K.