All names: 2MASS J16311771+4631002, Gaia EDR3 1409811195162282496, SDSS J163117.72+463100.4, PG 1629+466, UCAC4 683-059395, PG1629+466, TIC 284799934, GALEX J163117.7+463100, Gaia DR3 1409811195162282496, Gaia DR2 1409811195162282496
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 16 31 17.71 (0.03) | 16 31 17.75 | 16 31 17.72 (0.03) | ||
| Declination | 46 31 00.29 (0.03) | 46 31 00.36 | 46 31 00.34 (0.03) | ||
| Spectral type | He-sdO | sdBN0.2VIIHe29 | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.32 (0.03) | 1.35 (0.04) | 1.32 (0.03) | |
| Distance | [pc] | 756.43 (18) | 742.78 (23) | 756.43 (18) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -7.048 (0.03) | -7.095 (0.07) | -7.048 (0.03) | |
| Proper motion (declination) | [mas/yr] | -2.988 (0.04) | -3.111 (0.09) | -2.988 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.61 (0.01) | ||||
| V magnitude | 13.81 (0.03) | ||||
| R magnitude | 14.12 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 14.55 (0.03) | 14.55 (0.03) | |||
| H magnitude | 14.59 (0.06) | 14.59 (0.06) | |||
| K magnitude | 14.78 (0.08) | 14.78 (0.08) | |||
| u magnitude | 13.18 (0.003) | ||||
| g magnitude | |||||
| r magnitude | 14.05 (0.004) | ||||
| i magnitude | 14.44 (0.004) | ||||
| z magnitude | 14.77 (0.004) | ||||
| G magnitude | 13.80 (0.003) | 13.81 (0.0005) | 13.80 (0.003) | ||
| BP magnitude | 13.63 (0.003) | 13.54 (0.009) | |||
| RP magnitude | 14.12 (0.004) | 14.11 (0.002) | |||
| Pan g magnitude | 13.63 (0.006) | ||||
| Pan r magnitude | 14.09 (0.002) | ||||
| Pan i magnitude | 14.45 (0.002) | ||||
| Pan z magnitude | 14.75 (0.0004) | ||||
| Pan y magnitude | 14.96 (0.007) | ||||
| E(B-V) | 0.019 | ||||
* 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.