All names: SDSSJ154830.66+003656.7, SDSS J154830.66+003656.7, GALEX J154830.6+003656, Gaia DR2 4410666778588101504, Gaia DR3 4410666778588101504, 2MASS J15483066+0036565, TIC 272616330, Gaia EDR3 4410666778588101504
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 48 30.66 (0.03) | 15 48 30.67 | 15 48 30.67 | 15 48 30.66 (0.04) | 15 48 30.67 (0.03) | 15 48 30.67 | |||
| Declination | 00 36 56.66 (0.02) | 00 36 56.73 | 00 36 56.74 | 00 36 56.66 (0.03) | 00 36 56.70 (0.02) | 00 36 56.72 | |||
| Spectral type | sdB | sdB | SDB | ||||||
| Effective temperature | [K] | 7545.0 (3) | |||||||
| log(g) | [cgs] | 5.00 (0.002) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.23 (0.03) | 0.19 (0.05) | 0.19 (0.05) | 0.23 (0.03) | ||||
| Distance | [pc] | 4360.61 (596) | 5291.01 (1333) | 5291.82 (1332) | 4361.10 (597) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -5.074639919 (0.04) | -5.009 (0.09) | -5.009452276 (0.09) | -5.075 (0.04) | -6.3 | |||
| Proper motion (declination) | [mas/yr] | -2.618800581 (0.03) | -2.746 (0.07) | -2.746279593 (0.07) | -2.619 (0.03) | -3.1 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.49 (0.05) | 15.49 (0.05) | |||||||
| H magnitude | 15.68 (0.09) | 15.68 (0.09) | |||||||
| K magnitude | 15.93 (0.3) | 15.93 (0.3) | |||||||
| u magnitude | 15.89 (0.005) | 15.89 (0.005) | 15.89 (0.005) | 15.90 (0.01) | |||||
| g magnitude | 15.31 (0.003) | 15.31 (0.003) | 15.31 (0.003) | 15.32 (0.01) | |||||
| r magnitude | 15.56 (0.004) | 15.56 (0.004) | 15.56 (0.004) | 15.56 (0.01) | |||||
| i magnitude | 15.79 (0.004) | 15.79 (0.004) | 15.79 (0.004) | 15.78 (0.01) | |||||
| z magnitude | 15.98 (0.006) | 15.98 (0.006) | 15.98 (0.006) | 15.97 (0.02) | |||||
| G magnitude | 15.44 (0.002) | 15.46 (0.0004) | 15.46 | 15.44 (0.003) | |||||
| BP magnitude | 15.43 (0.002) | 15.41 (0.003) | 15.41 | ||||||
| RP magnitude | 15.47 (0.002) | 15.46 (0.003) | 15.46 | ||||||
| Pan g magnitude | 15.35 (0.003) | 15.35 (0.003) | |||||||
| Pan r magnitude | 15.59 (0.003) | 15.59 (0.003) | |||||||
| Pan i magnitude | 15.81 (0.002) | 15.81 (0.002) | |||||||
| Pan z magnitude | 15.98 (0.003) | 15.98 (0.003) | |||||||
| Pan y magnitude | 16.05 (0.004) | 16.05 (0.004) | |||||||
| E(B-V) | 0.078 | ||||||||
* 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.