All names: Gaia DR3 1296750338623481856, GALEX J150308.1+405009, Gaia EDR3 1296750338623481856, SDSS J150308.16+405009.1, SDSS J150308.17+405009.13, SDSSJ150308.17+405009.1, Gaia DR2 1296750338623481856, SDSS J150308.17+405009.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | SDSS DR10 | Geier 2020 | Gaia DR2 | Kepler et al. 2015 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 03 08.16 (0.1) | 15 03 08.16 | 15 03 08.16 | 15 03 08.17 | 15 03 08.16 (0.1) | 15 03 08.16 (0.1) | 15 03 08.17 | |||
| Declination | 40 50 09.13 (0.1) | 40 50 09.14 | 40 50 09.14 | 40 50 09.10 | 40 50 09.13 (0.2) | 40 50 09.16 (0.1) | 40 50 09.16 | |||
| Spectral type | sdB | DAB: | DAB | SD_auto | ||||||
| Effective temperature | [K] | 24537.0 (287) | 20314.0 (401) | |||||||
| log(g) | [cgs] | 5.00 (0.05) | 5.00 (0.01) | |||||||
| Mass | [M☉] | |||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | -0.02 (0.2) | -0.17 (0.2) | -0.17 (0.2) | ||||||
| Distance | [pc] | |||||||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.414174261 (0.2) | -4.106 (0.3) | -4.106119927 (0.3) | -4.414 (0.2) | 4.5 | ||||
| Proper motion (declination) | [mas/yr] | -2.107311692 (0.2) | -2.776 (0.4) | -2.77591009 (0.4) | -2.107 (0.2) | -0.9 | ||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 18.81 (0.02) | 18.81 (0.02) | 18.81 (0.02) | 18.81 (0.03) | 18.81 (0.02) | 18.80 (0.02) | ||||
| g magnitude | 18.58 (0.008) | 18.58 (0.008) | 18.58 (0.008) | 18.61 (0.02) | 18.58 (0.008) | 18.63 (0.02) | ||||
| r magnitude | 18.95 (0.01) | 18.95 (0.01) | 18.95 (0.01) | 18.94 (0.02) | 18.95 (0.01) | 19.03 (0.03) | ||||
| i magnitude | 19.23 (0.02) | 19.23 (0.02) | 19.23 (0.02) | 19.22 (0.02) | 19.23 (0.02) | 19.27 (0.02) | ||||
| z magnitude | 19.45 (0.05) | 19.45 (0.05) | 19.45 (0.05) | 19.44 (0.05) | 19.46 (0.05) | 19.49 (0.05) | ||||
| G magnitude | 18.78 (0.02) | 18.81 (0.003) | 18.81 | 18.78 (0.003) | ||||||
| BP magnitude | 18.73 (0.02) | 18.64 (0.02) | 18.64 | |||||||
| RP magnitude | 18.99 (0.03) | 18.95 (0.03) | 18.95 | |||||||
| Pan g magnitude | 18.63 (0.006) | 18.63 (0.006) | ||||||||
| Pan r magnitude | 18.96 (0.006) | 18.96 (0.006) | ||||||||
| Pan i magnitude | 19.26 (0.01) | 19.26 (0.01) | ||||||||
| Pan z magnitude | 19.43 (0.02) | 19.43 (0.03) | ||||||||
| Pan y magnitude | 19.51 (0.03) | 19.51 (0.03) | ||||||||
| E(B-V) | ||||||||||
* 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.