All names: Gaia EDR3 1375814952762454272, CRTS J153349.4+375928, SDSS J153349.44+375928.1, SDSS J153349.44+375928.0, LAMOST J153349.44+375928.0, Gaia DR3 1375814952762454272, 2MASS J15334944+3759282, FBS B 123, V* DD CrB, ZTF J153349.44+375927.8, FBS1531+381, Gaia DR2 1375814952762454272, FBS 1531+381, TIC 148785530, NSVS 7826147
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 15 33 49.44 (0.02) | 15 33 49.39 | 15 33 49.44 (0.02) | ||
| Declination | 37 59 27.82 (0.03) | 37 59 29.00 | 37 59 28.10 (0.03) | ||
| Spectral type | sdB+dM | sdB+dM | |||
| Effective temperature | [K] | 29200.0 (500) | |||
| log(g) | [cgs] | 5.58 (0.05) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.90 (0.03) | 1.90 (0.05) | 1.90 (0.03) | |
| Distance | [pc] | 525.07 (1e+01) | 526.12 (13) | 525.07 (1e+01) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 0.219 (0.03) | 0.012 (0.07) | 0.219 (0.03) | |
| Proper motion (declination) | [mas/yr] | -17.108 (0.04) | -17.025 (0.1) | -17.108 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | |||||
| V magnitude | 13.08 | ||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 13.65 (0.03) | 13.65 (0.03) | |||
| H magnitude | 13.74 (0.03) | 13.74 (0.03) | |||
| K magnitude | 13.88 (0.04) | 13.88 (0.04) | |||
| u magnitude | 13.93 (0.003) | 12.83 (0.003) | |||
| g magnitude | 13.85 (0.003) | 12.88 (0.002) | |||
| r magnitude | 14.18 (0.003) | 13.29 (0.005) | |||
| i magnitude | 14.76 (0.003) | 13.79 (0.007) | |||
| z magnitude | 15.18 (0.005) | 13.84 (0.004) | |||
| G magnitude | 12.94 (0.005) | 12.98 (0.005) | 12.94 (0.005) | ||
| BP magnitude | 12.82 (0.01) | 12.76 (0.01) | |||
| RP magnitude | 13.20 (0.01) | 13.21 (0.02) | |||
| Pan g magnitude | 13.04 | ||||
| Pan r magnitude | 13.44 | ||||
| Pan i magnitude | 13.59 (0.002) | ||||
| Pan z magnitude | 13.78 (0.02) | ||||
| Pan y magnitude | 14.05 (0.008) | ||||
| E(B-V) | 0.024 | ||||
* 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.