All names: Gaia EDR3 2801448085887897216, WISE J004917.14+205639.9, Gaia DR3 2801448085887897216, Gaia DR2 2801448085887897216, WISEA J004917.15+205639.8, PG 0046+207, GALEX J004917.2+205640, UCAC4 555-001644, TIC 435866273, 2MASS J00491714+2056404, SDSS J004917.15+205640.5, PG0046+207, UCAC2 39081425, LAMOST J004917.14+205640.4, LAMOST J004917.15+205640.5
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 00 49 17.15 (0.03) | 00 49 17.14 | 00 49 17.15 (0.03) | ||
| Declination | 20 56 40.50 (0.03) | 20 56 40.50 | 20 56 40.48 (0.03) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 27520.0 (500) | |||
| log(g) | [cgs] | 5.55 (0.07) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.93 (0.04) | 1.03 (0.07) | 0.93 (0.04) | |
| Distance | [pc] | 1080.73 (43) | 974.47 (62) | 1080.73 (43) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 4.261 (0.04) | 4.149 (0.1) | 4.261 (0.04) | |
| Proper motion (declination) | [mas/yr] | 1.461 (0.03) | 1.329 (0.1) | 1.461 (0.03) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.40 (0.1) | ||||
| V magnitude | 14.63 (0.04) | ||||
| R magnitude | 15.03 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 15.09 (0.04) | 15.09 (0.04) | |||
| H magnitude | 15.15 (0.08) | 15.15 (0.08) | |||
| K magnitude | 15.19 (0.2) | 15.19 (0.2) | |||
| u magnitude | 14.22 (0.004) | 14.22 (0.004) | |||
| g magnitude | 14.32 (0.003) | 14.32 (0.003) | |||
| r magnitude | 14.76 (0.003) | 14.76 (0.003) | |||
| i magnitude | 15.08 (0.003) | 15.08 (0.003) | |||
| z magnitude | 15.38 (0.005) | 15.38 (0.005) | |||
| G magnitude | 14.54 (0.003) | 14.56 (0.0007) | 14.54 (0.003) | ||
| BP magnitude | 14.42 (0.003) | 14.37 (0.01) | |||
| RP magnitude | 14.79 (0.004) | 14.79 (0.003) | |||
| Pan g magnitude | 14.37 (0.004) | ||||
| Pan r magnitude | 14.78 (0.003) | ||||
| Pan i magnitude | 15.12 (0.002) | ||||
| Pan z magnitude | 15.38 (0.003) | ||||
| Pan y magnitude | 15.54 (0.003) | ||||
| E(B-V) | 0.051 | ||||
* 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.