All names: SDSS J163449.20+051416.2, PG 1632+053, UCAC2 33590375, TIC 281622626, PG1632+053, 2MASS J16344920+0514161, UCAC4 477-060024, Gaia DR2 4435415307857035008, Gaia DR3 4435415307857035008
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 16 34 49.22 | 16 34 49.20 (0.03) | ||
| Declination | 05 14 16.18 | 05 14 16.25 (0.01) | ||
| Spectral type | sdB | sdB | ||
| 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] | 0.17 (0.05) | 0.14 (0.03) | |
| Distance | [pc] | 6009.62 (1643) | 7320.64 (1769) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -6.62 (0.08) | -6.236 (0.04) | |
| Proper motion (declination) | [mas/yr] | 0.801 (0.06) | 0.919 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.65 (0.02) | |||
| V magnitude | 15.55 (0.01) | |||
| R magnitude | 16.00 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.97 (0.04) | 14.97 (0.04) | ||
| H magnitude | 14.75 (0.06) | 14.75 (0.06) | ||
| K magnitude | 14.75 (0.08) | 14.75 (0.08) | ||
| u magnitude | 15.58 (0.005) | |||
| g magnitude | 15.47 (0.004) | |||
| r magnitude | 15.56 (0.005) | |||
| i magnitude | 15.61 (0.005) | |||
| z magnitude | 15.69 (0.006) | |||
| G magnitude | 15.46 (0.0004) | 15.44 (0.003) | ||
| BP magnitude | 15.47 (0.004) | |||
| RP magnitude | 15.28 (0.002) | |||
| Pan g magnitude | 15.49 (0.001) | |||
| Pan r magnitude | 15.56 (0.003) | |||
| Pan i magnitude | 15.62 (0.002) | |||
| Pan z magnitude | 15.69 (0.002) | |||
| Pan y magnitude | 15.72 (0.006) | |||
| 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.