All names: Gaia DR2 2514184283536110720, Feige 19, uvby98 620001019, CSI+01-02083, PG 0208+016, GSC 00038-00545, [TFW97] J021054.21+014746.82, Gaia DR3 2514184283536110720, LAMOST J021054.21+014747.1, PB 6715, PG0208+015, 2MASS J02105422+0147471, Gaia EDR3 2514184283536110720, HIDDEN NAME PG 0208+015, TIC 270380474, GALEX J021054.2+014744
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 02 10 54.22 (0.04) | 02 10 54.22 | 02 10 54.21 (0.04) | ||
| Declination | 01 47 47.27 (0.03) | 01 47 47.00 | 01 47 47.18 (0.03) | ||
| Spectral type | He-sdO | sdO9VIIHe39 | |||
| Effective temperature | [K] | 42940.0 (510) | |||
| log(g) | [cgs] | 5.59 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.08 (0.04) | 1.06 (0.1) | 1.08 (0.04) | |
| Distance | [pc] | 922.25 (36) | 943.31 (89) | 922.25 (36) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 6.349 (0.04) | 6.37 (0.3) | 6.349 (0.04) | |
| Proper motion (declination) | [mas/yr] | 5.806 (0.04) | 5.785 (0.2) | 5.806 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.40 | ||||
| V magnitude | 13.57 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 14.40 (0.03) | 14.40 (0.03) | |||
| H magnitude | 14.57 (0.04) | 14.57 (0.04) | |||
| K magnitude | 14.71 (0.1) | 14.71 (0.1) | |||
| u magnitude | 13.40 (0.005) | ||||
| g magnitude | 13.64 (0.003) | ||||
| r magnitude | 14.07 (0.003) | ||||
| i magnitude | 14.52 (0.006) | ||||
| z magnitude | 14.72 (0.006) | ||||
| G magnitude | 13.67 (0.003) | 13.68 (0.0009) | 13.67 (0.003) | ||
| BP magnitude | 13.51 (0.003) | 13.44 (0.009) | |||
| RP magnitude | 13.98 (0.004) | 13.98 (0.002) | |||
| Pan g magnitude | 13.53 (0.001) | ||||
| Pan r magnitude | 13.97 (0.001) | ||||
| Pan i magnitude | 14.32 (0.001) | ||||
| Pan z magnitude | 14.60 (0.004) | ||||
| Pan y magnitude | 14.80 (0.007) | ||||
| E(B-V) | 0.031 | ||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.