All names: GALEX J004905.9+395021, FBS 0046+395, LAMOSTJ004906.06+395021.0, Gaia EDR3 368884712306195584, FBS B 4, 2MASS J00490605+3950211, Gaia DR3 368884712306195584, LAMOST J004906.06+395021.0, Gaia DR2 368884712306195584, TIC 67903471
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 00 49 06.07 (0.04) | 00 49 06.07 | 00 49 06.06 (0.04) | ||
| Declination | 39 50 21.08 (0.02) | 39 50 21.09 | 39 50 21.16 (0.02) | ||
| Spectral type | sdB | sdOA | |||
| Effective temperature | [K] | 31352.0 (139) | |||
| log(g) | [cgs] | 6.05 (0.04) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.72 (0.04) | 0.63 (0.07) | 0.72 (0.04) | |
| Distance | [pc] | 1390.05 (77) | 1592.86 (176) | 1390.05 (77) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 6.181 (0.04) | 5.985 (0.1) | 6.181 (0.04) | |
| Proper motion (declination) | [mas/yr] | -5.118 (0.03) | -5.165 (0.08) | -5.118 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 15.99 (0.08) | 15.99 (0.08) | |||
| H magnitude | 15.71 (0.2) | 15.71 (0.2) | |||
| K magnitude | 17.11 | ||||
| u magnitude | 15.06 (0.004) | ||||
| g magnitude | 15.19 (0.003) | 15.12 | |||
| r magnitude | 15.63 (0.004) | 15.62 | |||
| i magnitude | 15.94 (0.005) | 15.88 | |||
| z magnitude | 16.23 (0.007) | ||||
| G magnitude | 15.41 (0.003) | 15.43 (0.0006) | 15.41 (0.003) | ||
| BP magnitude | 15.30 (0.003) | 15.25 (0.01) | |||
| RP magnitude | 15.64 (0.005) | 15.64 (0.004) | |||
| Pan g magnitude | 15.26 (0.006) | ||||
| Pan r magnitude | 15.63 (0.004) | ||||
| Pan i magnitude | 15.97 (0.001) | ||||
| Pan z magnitude | 16.23 (0.01) | ||||
| Pan y magnitude | 16.38 (0.005) | ||||
| E(B-V) | 0.037 | ||||
* 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.