All names: GALEX J155628.3+011334, TIC 272873426, SDSS J155628.35+011334.9, Gaia DR2 4410947978684680320, Gaia EDR3 4410947978684680320, SDSS J155628.34+011335.0, SDSSJ155628.34+011335.0, Gaia DR3 4410947978684680320, SDSS J155628.34+011334.9, SDSS J155628.35+011335.0, 2MASS J15562834+0113348, LAMOST J155628.35+011334.9
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Geier 2020 | Gaia DR2 | Stilism | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 56 28.34 (0.05) | 15 56 28.34 | 15 56 28.34 (0.07) | 15 56 28.35 (0.05) | 15 56 28.35 | ||||
| Declination | 01 13 34.78 (0.05) | 01 13 35.00 | 01 13 34.78 (0.05) | 01 13 34.93 (0.05) | 01 13 34.95 | ||||
| Spectral type | sdB | sdB | sdB | SDB | |||||
| Effective temperature | [K] | 32700.0 (600) | 28653.0 (195) | ||||||
| log(g) | [cgs] | 5.51 (0.08) | 5.02 (0.05) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.35 (0.06) | 0.31 (0.08) | 0.31 (0.08) | 0.35 (0.06) | ||||
| Distance | [pc] | 2877.77 (520) | 3241.49 (848) | 3241.49 (848) | 2877.70 (520) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -4.452793346 (0.07) | -4.829 (0.1) | -4.829 (0.1) | -4.453 (0.07) | ||||
| Proper motion (declination) | [mas/yr] | -9.916352952 (0.06) | -9.689 (0.1) | -9.689 (0.1) | -9.916 (0.06) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.46 (0.1) | 16.46 (0.1) | |||||||
| H magnitude | 16.63 (0.3) | 16.63 (0.3) | |||||||
| K magnitude | 17.02 | ||||||||
| u magnitude | 15.88 (0.005) | 15.91 | 15.88 (0.005) | 15.94 (0.02) | |||||
| g magnitude | 15.99 (0.003) | 16.03 | 15.99 (0.003) | 16.03 (0.01) | |||||
| r magnitude | 16.39 (0.004) | 16.40 | 16.39 (0.004) | 16.39 (0.01) | |||||
| i magnitude | 16.71 (0.005) | 16.71 | 16.71 (0.005) | 16.70 (0.01) | |||||
| z magnitude | 16.94 (0.01) | 16.90 | 16.94 (0.01) | 16.92 (0.02) | |||||
| G magnitude | 16.20 (0.003) | 16.23 (0.001) | 16.23 | 16.20 (0.003) | |||||
| BP magnitude | 16.10 (0.003) | 16.06 (0.008) | 16.06 | ||||||
| RP magnitude | 16.40 (0.005) | 16.40 (0.003) | 16.40 | ||||||
| Pan g magnitude | 16.07 (0.005) | 16.07 (0.005) | |||||||
| Pan r magnitude | 16.42 (0.003) | 16.42 (0.003) | |||||||
| Pan i magnitude | 16.73 (0.004) | 16.73 (0.004) | |||||||
| Pan z magnitude | 16.97 (0.004) | 16.97 (0.004) | |||||||
| Pan y magnitude | 17.14 (0.007) | 17.14 (0.007) | |||||||
| E(B-V) | 0.081 | ||||||||
* 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.