All names: WISEA J154944.93+012554.2, WD 1547+015, Gaia EDR3 4423116892346484480, WISE J154944.94+012554.9, 2MASS J15494494+0125546, GALEX J154944.9+012552, TIC 272673382, Gaia DR3 4423116892346484480, UCAC4 458-058359, BPS CS 30312-0164, PG 1547+016, SDSS J154944.96+012554.7, Gaia DR2 4423116892346484480
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 49 44.92 (0.05) | 15 49 44.92 (0.08) | 15 49 44.92 | 15 49 44.96 (0.05) | 15 49 44.30 | ||||
| Declination | 01 25 53.41 (0.05) | 01 25 53.46 (0.06) | 01 25 53.41 | 01 25 54.78 (0.05) | 01 25 55.92 | ||||
| Spectral type | DA | DA | DA.6 | DA2 | |||||
| Effective temperature | [K] | 80660.0 (3670) | 76588.0 (591) | 40931.0 (2207) | |||||
| log(g) | [cgs] | 7.63 (0.1) | 7.50 (0.02) | 7.51 (0.03) | |||||
| Mass | [M☉] | 0.62 (0.05) | 0.466 (0.01) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(C/H) | |||||||||
| log(N/H) | |||||||||
| log(O/H) | |||||||||
| log(Na/H) | |||||||||
| log(Mg/H) | |||||||||
| log(Al/H) | |||||||||
| log(Si/H) | |||||||||
| log(P/H) | |||||||||
| log(S/H) | |||||||||
| log(Sc/H) | |||||||||
| log(Ti/H) | |||||||||
| log(Cr/H) | |||||||||
| log(Mn/H) | |||||||||
| log(Fe/H) | |||||||||
| log(Ni/H) | |||||||||
| Parallax | [mas] | 3.64 (0.07) | 3.47 (0.1) | 3.64 | 3.64 (0.07) | ||||
| Distance | [pc] | 274.46 (5) | 287.88 (8) | 401.00 | 274.46 | 274.46 (5) | |||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -36.90160316 (0.07) | -37.32735834 (0.2) | -36.902 (0.07) | |||||
| Proper motion (declination) | [mas/yr] | -85.22644562 (0.06) | -85.04711579 (0.2) | -85.226 (0.06) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.73 (0.02) | ||||||||
| V magnitude | 15.90 | 15.93 (0.05) | |||||||
| R magnitude | 16.05 (0.2) | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.43 (0.1) | ||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 15.87 (0.003) | 15.89 | 15.87 | 15.87 (0.003) | |||||
| BP magnitude | 15.73 (0.003) | 15.65 | |||||||
| RP magnitude | 16.13 (0.003) | 16.12 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.065 | ||||||||
* 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.