All names: TIC 281788230, GALEX J163703.6+055905, Gaia DR3 4435849168273656704, Gaia DR2 4435849168273656704, UCAC2 33771396, USNO-B1.0 0959-00269056, Gaia EDR3 4435849168273656704, UCAC4 480-061278, LAMOST J163703.58+055905.4, 2MASS J16370359+0559054, PG1634+061, PG 1634+061, SDSS J163703.59+055905.4
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 16 37 03.58 (0.07) | 16 37 03.64 | 16 37 03.60 (0.07) | ||
| Declination | 05 59 05.39 (0.04) | 05 59 05.70 | 05 59 05.41 (0.04) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 30750.0 (130) | |||
| log(g) | [cgs] | 5.50 (0.04) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 2.03 (0.09) | 1.75 (0.08) | 2.03 (0.09) | |
| Distance | [pc] | 493.63 (21) | 573.00 (28) | 493.63 (21) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -14.217 (0.1) | -12.977 (0.2) | -14.217 (0.1) | |
| Proper motion (declination) | [mas/yr] | -0.834 (0.08) | -0.892 (0.1) | -0.834 (0.08) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.90 | ||||
| V magnitude | |||||
| R magnitude | 14.10 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 14.32 (0.03) | 14.32 (0.03) | |||
| H magnitude | 14.50 (0.05) | 14.50 (0.05) | |||
| K magnitude | 14.44 (0.07) | 14.44 (0.07) | |||
| u magnitude | 14.05 (0.005) | ||||
| g magnitude | |||||
| r magnitude | 15.74 (0.01) | ||||
| i magnitude | 14.69 (0.005) | ||||
| z magnitude | 14.76 (0.006) | ||||
| G magnitude | 13.82 (0.003) | 13.84 (0.0004) | 13.82 (0.003) | ||
| BP magnitude | 13.71 (0.003) | 13.65 (0.006) | |||
| RP magnitude | 14.04 (0.004) | 14.04 (0.002) | |||
| Pan g magnitude | 13.69 (0.005) | ||||
| Pan r magnitude | 14.07 (0.003) | ||||
| Pan i magnitude | 14.39 (0.003) | ||||
| Pan z magnitude | 14.63 (0.003) | ||||
| Pan y magnitude | 14.79 (0.003) | ||||
| E(B-V) | 0.064 | ||||
* 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.