All names: SDSS J153102.39+534900.6, SBSS 1529+539, SDSS J153102.41+534900.6, SDSS J153102.40+534900.5, Gaia EDR3 1596453156538274560, CBS 323, SDSS J153102.40+534900.6, WD 1529+539, GALEX J153102.3+534900, SDSS J153102.42+534900.4, SDSS J153102.41+534900.4, Gaia DR3 1596453156538274560, Gaia DR2 1596453156538274560
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Tremblay et al. 2011 | Vincent et al. 2024 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 31 02.40 (0.07) | 15 31 02.41 | 15 31 02.40 (0.08) | 15 31 02.40 | 15 31 02.40 (0.07) | 15 31 02.40 | 15 31 01.99 | 15 31 02.41 | ||||||
| Declination | 53 49 00.33 (0.07) | 53 49 00.55 | 53 49 00.34 (0.09) | 53 49 00.33 | 53 49 00.63 (0.07) | 53 49 00.67 | 53 48 57.24 | 53 49 00.64 | ||||||
| Spectral type | DAO | DAO | DA | DAO | DAO | DAO | DAO | DA | ||||||
| Effective temperature | [K] | 68680.0 (3201) | 78680.0 (7970) | 75449.0 (3388) | 72727.0 (6087) | |||||||||
| log(g) | [cgs] | 6.95 (0.1) | 6.85 (0.2) | 6.93 (0.2) | 6.64 (0.3) | |||||||||
| Mass | [M☉] | 0.4 (0.03) | 0.44 (0.06) | |||||||||||
| log(Luminosity) | [L☉] | 1.39 (0.1) | ||||||||||||
| Cooling age | [Gyr] | 0.0001 | 0.0016 | |||||||||||
| 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] | 0.81 (0.08) | 0.70 (0.1) | 0.81 | 0.81 (0.08) | |||||||||
| Distance | [pc] | 1227.07 (113) | 1437.81 (209) | 1227.07 | 1227.14 (113) | |||||||||
| Composition | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 4.238455708 (0.09) | 4.052197199 (0.2) | 4.238 (0.09) | 9.5 | |||||||||
| Proper motion (declination) | [mas/yr] | -18.31323874 (0.1) | -18.63135774 (0.2) | -18.313 (0.1) | -17.3 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | ||||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 16.85 (0.008) | 16.85 (0.008) | 16.82 (0.02) | 16.82 | 16.79 (0.02) | |||||||||
| g magnitude | 17.30 (0.005) | 17.30 (0.005) | 17.30 (0.02) | 17.30 | 17.29 (0.02) | |||||||||
| r magnitude | 17.83 (0.007) | 17.84 (0.007) | 17.80 (0.02) | 17.80 | 17.80 (0.02) | |||||||||
| i magnitude | 18.23 (0.009) | 18.23 (0.009) | 18.19 (0.02) | 18.19 | 18.19 (0.02) | |||||||||
| z magnitude | 18.53 (0.03) | 18.54 (0.03) | 18.55 (0.04) | 18.55 | 18.55 (0.04) | |||||||||
| G magnitude | 17.55 (0.006) | 17.57 | 17.55 | 17.55 (0.003) | ||||||||||
| BP magnitude | 17.38 (0.006) | 17.31 | ||||||||||||
| RP magnitude | 17.90 (0.02) | 17.92 | ||||||||||||
| Pan g magnitude | 17.36 (0.003) | |||||||||||||
| Pan r magnitude | 17.83 (0.004) | |||||||||||||
| Pan i magnitude | 18.23 (0.005) | |||||||||||||
| Pan z magnitude | 18.53 (0.008) | |||||||||||||
| Pan y magnitude | 18.76 (0.04) | |||||||||||||
| E(B-V) | 0.020 | |||||||||||||
* 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.