All names: CSO 750, SDSS J152356.57+542256.8, WD 1522+545, SDSS J152356.58+542256.7, SDSS J152356.57+542256.87, Gaia DR3 1599573471755615872, Gaia DR2 1599573467458776704, SBSS 1522+545, USNO-B1.0 1443-00241905, Gaia EDR3 1599573471755615872
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2016 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 23 56.57 (0.07) | 15 23 56.59 | 15 23 56.57 (0.1) | 15 23 56.57 | 15 23 56.59 (0.07) | 15 23 56.26 | ||||||
| Declination | 54 22 57.01 (0.07) | 54 22 56.79 | 54 22 57.00 (0.2) | 54 22 57.01 | 54 22 56.81 (0.07) | 54 22 50.88 | ||||||
| Spectral type | DA | DA | DA | DA | DA | DA | ||||||
| Effective temperature | [K] | 20610.0 | 21694.0 (136) | 23007.0 (895) | ||||||||
| log(g) | [cgs] | 7.78 | 7.86 (0.02) | 7.93 (0.04) | ||||||||
| Mass | [M☉] | 0.51 | 0.5579999999999999 (0.009) | 0.595 (0.03) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0372 | ||||||||||
| 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] | 3.58 (0.08) | 3.48 (0.1) | 3.58 | 3.58 (0.08) | |||||||
| Distance | [pc] | 279.22 (6) | 287.37 (10) | 279.22 | 279.22 (6) | |||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -10.27998001 (0.08) | -10.15071594 (0.2) | -10.28 (0.08) | ||||||||
| Proper motion (declination) | [mas/yr] | 12.41703564 (0.09) | 12.71828967 (0.3) | 12.417 (0.09) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 17.30 | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | 17.70 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 17.42 (0.009) | 17.45 (0.02) | 17.43 (0.009) | |||||||||
| g magnitude | 17.45 (0.005) | 17.47 (0.01) | 17.45 (0.005) | |||||||||
| r magnitude | 17.87 (0.006) | 17.89 (0.01) | 17.87 (0.006) | |||||||||
| i magnitude | 18.17 (0.009) | 18.18 (0.01) | 18.16 (0.009) | |||||||||
| z magnitude | 18.47 (0.03) | 18.50 (0.03) | 18.48 (0.03) | |||||||||
| G magnitude | 17.70 (0.007) | 17.71 | 17.70 | 17.70 (0.003) | ||||||||
| BP magnitude | 17.61 (0.007) | 17.55 | ||||||||||
| RP magnitude | 17.92 (0.01) | 17.90 | ||||||||||
| Pan g magnitude | 17.54 (0.005) | |||||||||||
| Pan r magnitude | 17.88 (0.004) | |||||||||||
| Pan i magnitude | 18.20 (0.006) | |||||||||||
| Pan z magnitude | 18.47 (0.008) | |||||||||||
| Pan y magnitude | 18.68 (0.03) | |||||||||||
| E(B-V) | 0.019 | |||||||||||
* 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.