HD 194783
  | |
| Observation data ICRS )
| |
|---|---|
| Constellation | Microscopium |
| Right ascension | 20h 28m 46.74360s[1] |
| Declination | −35° 35′ 45.1068″[1] |
| Apparent magnitude (V) | 6.08±0.01[2] |
| Characteristics | |
| Spectral type | B8 II/III[3] or B9pHgMn[4] |
| B−V color index | −0.11[5] |
| Absolute magnitude (MV) | −0.59[7] or −1.10[8] |
| Details | |
Myr | |
TIC 34864575[13] | |
| Database references | |
| SIMBAD | data |
HD 194783 (HR 7817; 2 G. Microscopii) is a solitary
interstellar extinction of 0.31 magnitudes[14] and it has an absolute magnitude of either −0.59 or −1.10,[7][8]
depending on the source.
HD 194783 has a
million years old.[8]
In 1989, HD 194783 was reported to be a spectrum variable with a period of 6
projected rotational velocity of the star is not known, but it is said to be no higher than 30 km/s.[11] HD 194783 was also observed to have a relatively weak magnetic field of about −43 gauss.[15]
References
- ^ S2CID 244398875. Gaia DR3 record for this source at VizieR.
- ^ S2CID 17128864.
- ^ Bibcode:1982mcts.book.....H.
- ^ ISSN 0365-0138.
- ISSN 0024-8266.
- ^ S2CID 119231169.
- ^ S2CID 119257644.
- ^ S2CID 119020376.
- ^ S2CID 6077801.
- ^ ISSN 0004-6361.
- ^ ISSN 0374-0676.
- Bibcode:1879RNAO....1.....G.
- ^ "HD 194783". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved December 3, 2023.
- S2CID 118879856.
- S2CID 16248930.
