All names: GALEX J154706.7+301301, WD 1545+303, LAMOST J154706.71+301301.1, Gaia DR3 1321085623323067008, SDSS J154706.73+301301.3, Gaia EDR3 1321085623323067008, SDSS J154706.72+301301.2, SDSS J154706.70+301301.1, LAMOST J154706.72+301301.3, WIRED J154706.71+301301.1, Gaia DR2 1321085623323067008, SDSS J154706.71+301301.1, [HHD2009] SDSS J1547+3013
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 47 06.73 (0.1) | 15 47 06.72 | 15 47 06.73 (0.2) | 15 47 06.71 | 15 47 06.72 (0.1) | 15 47 06.72 | 15 47 06.22 | 15 47 06.72 | ||||
| Declination | 30 13 01.41 (0.1) | 30 13 01.20 | 30 13 01.40 (0.2) | 30 13 01.09 | 30 13 01.16 (0.1) | 30 13 01.19 | 30 12 59.40 | 30 13 01.19 | ||||
| Spectral type | DA+M | DA+dMe | DA+M | DA dM | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 22037.0 (949) | 8724.0 (71) | 8669.0 (88) | ||||||||
| log(g) | [cgs] | 7.72 (0.2) | 8.74 (0.1) | 8.06 (0.1) | ||||||||
| Mass | [M☉] | 0.49 (0.07) | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | |||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 2.13 (0.2) | 2.38 (0.3) | 2.13 (0.2) | ||||||||
| Distance | [pc] | 470.56 (36) | 419.51 (44) | 1163.00 (347) | 470.57 (36) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 11.7717481 (0.2) | 11.04616744 (0.3) | 11.772 (0.2) | 14.1 | |||||||
| Proper motion (declination) | [mas/yr] | 15.48561226 (0.2) | 15.26335441 (0.4) | 15.486 (0.2) | 16.1 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | WDMS | WDMS | WDMS | WDMS | ||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 18.94 (0.02) | 18.95 | 18.94 (0.02) | 18.95 (0.02) | 18.95 | 18.96 (0.02) | ||||||
| g magnitude | 18.90 (0.009) | 18.91 | 18.90 (0.009) | 18.91 (0.02) | 18.91 | 18.91 (0.02) | ||||||
| r magnitude | 19.01 (0.01) | 19.00 | 19.01 (0.01) | 19.00 (0.01) | 19.00 | 19.00 (0.01) | ||||||
| i magnitude | 18.67 (0.01) | 18.66 | 18.68 (0.01) | 18.66 (0.02) | 18.67 | 18.66 (0.02) | ||||||
| z magnitude | 18.34 (0.02) | 18.35 | 18.36 (0.02) | 18.35 (0.03) | 18.35 | 18.34 (0.03) | ||||||
| G magnitude | 18.76 (0.02) | 18.78 | 18.76 (0.003) | |||||||||
| BP magnitude | 18.97 (0.02) | 18.93 | ||||||||||
| RP magnitude | 18.29 (0.02) | 18.27 | ||||||||||
| Pan g magnitude | 18.94 (0.01) | |||||||||||
| Pan r magnitude | 19.02 (0.007) | |||||||||||
| Pan i magnitude | 18.68 (0.005) | |||||||||||
| Pan z magnitude | 18.38 (0.006) | |||||||||||
| Pan y magnitude | 18.18 (0.01) | |||||||||||
| E(B-V) | 0.027 | |||||||||||
* 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.