All names: 2MASS J15481170+3128403, GALEX J154811.6+312840, WIRED J154811.65+312840.1, [HHD2009] SDSS J1548+3128, WD 1546+316, SDSS J154811.64+312840.1, TIC 188534811, Gaia DR3 1369295840946228608, SDSS J154811.65+312840.2, Gaia DR2 1369295840946228608, SDSS J154811.60+312840.1, SDSS J154811.65+312840.1, Gaia EDR3 1369295840946228608
| 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 48 11.64 (0.2) | 15 48 11.65 | 15 48 11.64 (0.2) | 15 48 11.65 | 15 48 11.65 (0.2) | 15 48 11.65 | 15 48 11.45 | 15 48 11.65 | |||
| Declination | 31 28 40.26 (0.2) | 31 28 40.20 | 31 28 40.26 (0.3) | 31 28 40.12 | 31 28 40.23 (0.2) | 31 28 40.18 | 31 28 33.24 | 31 28 40.18 | |||
| Spectral type | DA+M | DA+dMe | DA+M | DA dM | DA+M | ||||||
| Effective temperature | [K] | 16717.0 (2388) | 6300.0 (1) | 6300.0 (1) | |||||||
| log(g) | [cgs] | 8.03 (0.5) | 8.57 (0.3) | 8.03 (0.2) | |||||||
| Mass | [M☉] | 0.63 (0.3) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 1.48 (0.3) | 1.36 (0.4) | 1.48 (0.3) | |||||||
| Distance | [pc] | 674.38 (118) | 737.90 (202) | 1459.00 (410) | 674.40 (118) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -12.39809572 (0.2) | -11.70740551 (0.6) | -12.398 (0.2) | -12.5 | ||||||
| Proper motion (declination) | [mas/yr] | 2.076001182 (0.3) | 2.261639325 (0.7) | 2.076 (0.3) | 0.0 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.99 (0.2) | ||||||||||
| H magnitude | 16.11 (0.2) | ||||||||||
| K magnitude | 15.89 (0.1) | ||||||||||
| u magnitude | 20.63 (0.05) | 20.58 | 20.58 (0.05) | 20.58 (0.05) | 20.58 | 20.62 (0.05) | |||||
| g magnitude | 20.30 (0.02) | 20.29 | 20.28 (0.02) | 20.29 (0.02) | 20.29 | 20.31 (0.02) | |||||
| r magnitude | 20.09 (0.02) | 20.07 | 20.08 (0.02) | 20.07 (0.02) | 20.07 | 20.08 (0.02) | |||||
| i magnitude | 19.14 (0.01) | 19.14 | 19.14 (0.01) | 19.14 (0.02) | 19.14 | 19.14 (0.02) | |||||
| z magnitude | 18.41 (0.02) | 18.39 | 18.39 (0.02) | 18.39 (0.03) | 18.39 | 18.41 (0.03) | |||||
| G magnitude | 19.57 (0.06) | 19.59 | 19.57 (0.004) | ||||||||
| BP magnitude | 20.14 (0.06) | 20.20 | |||||||||
| RP magnitude | 18.59 (0.03) | 18.59 | |||||||||
| Pan g magnitude | 20.25 (0.03) | ||||||||||
| Pan r magnitude | 20.06 (0.02) | ||||||||||
| Pan i magnitude | 19.11 (0.007) | ||||||||||
| Pan z magnitude | 18.51 (0.02) | ||||||||||
| Pan y magnitude | 18.21 (0.01) | ||||||||||
| E(B-V) | 0.026 | ||||||||||
* 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.