All names: GALEX J012749.8+732846, WD 0123+732, ** LDS 1528A, WDS J01278+7327A, Gaia EDR3 535482641132742400, 2MASS J01274906+7328478, LP 29-149, WDJ012750.16+732846.22, TIC 422754465, PM J01278+7328, LSPM J0127+7328, 01278+7328, USNO-B1.0 1634-00019908, Gaia DR3 535482641132742400, NLTT 4799, Gaia DR2 535482641132742400, J0127+7328
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 27 49.59 (0.05) | 01 27 49.60 (0.06) | 01 27 50.16 (0.05) | 01 27 49.60 | 01 27 43.32 | ||||||||
| Declination | 73 28 47.38 (0.05) | 73 28 47.35 (0.07) | 73 28 46.22 (0.05) | 73 28 47.35 | 73 27 32.76 | ||||||||
| Spectral type | DA | DA | DA | DA | DAB | ||||||||
| Effective temperature | [K] | 6772.0 (75) | 6550.0 | 6338.0 | 7400.0 (11) | 7400.0 (117) | |||||||
| log(g) | [cgs] | 7.73 (0.03) | 7.62 | 7.50 | 8.20 (0.1) | 8.20 (0.1) | |||||||
| Mass | [M☉] | 0.443 (0.02) | 0.392 | 0.321 | 0.66 (0.06) | 0.72 (0.07) | |||||||
| log(Luminosity) | [L☉] | -3.48 | |||||||||||
| Cooling age | [Gyr] | 1.2000 | 1.1140 | 1.1220 | 1.7200 | ||||||||
| 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] | 18.67 (0.06) | 18.60 (0.09) | 18.60 (0.09) | 18.67 (0.06) | 18.60 (0.09) | |||||||
| Distance | [pc] | 53.57 (0.2) | 53.76 (0.3) | 53.78 (0.3) | 25.10 (1) | 25.10 (1) | 53.57 (0.2) | 53.78 (0.3) | |||||
| Composition | H | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -152.0083688 (0.07) | -152.032 (0.1) | -160.0 | -152.008 (0.07) | -152.0319383 | |||||||
| Proper motion (declination) | [mas/yr] | 72.60772028 (0.07) | 72.568 (0.1) | 76.0 | 72.608 (0.07) | 72.56821213 | |||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | yes | ||||||||||||
| B magnitude | 16.20 | ||||||||||||
| V magnitude | 15.61 | ||||||||||||
| R magnitude | 14.90 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 14.76 (0.03) | 14.76 | 14.76 (0.03) | ||||||||||
| H magnitude | 10.17 | ||||||||||||
| K magnitude | 9.79 | ||||||||||||
| u magnitude | |||||||||||||
| g magnitude | |||||||||||||
| r magnitude | |||||||||||||
| i magnitude | |||||||||||||
| z magnitude | |||||||||||||
| G magnitude | 16.90 (0.01) | 16.92 | 16.90 (0.003) | 16.92 | |||||||||
| BP magnitude | 17.03 (0.01) | 17.03 | 17.03 | ||||||||||
| RP magnitude | 16.51 (0.02) | 16.50 | 16.50 | ||||||||||
| Pan g magnitude | 17.05 (0.003) | 17.05 (0.003) | |||||||||||
| Pan r magnitude | 16.88 (0.02) | 16.88 (0.02) | |||||||||||
| Pan i magnitude | 16.83 (0.01) | 16.83 (0.01) | |||||||||||
| Pan z magnitude | 16.83 (0.02) | 16.82 (0.02) | |||||||||||
| Pan y magnitude | 16.59 (0.04) | 16.59 (0.04) | |||||||||||
| E(B-V) | 0.002 | ||||||||||||
* 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.