All names: EGGR 420, Gaia EDR3 3294543969653440256, LP 476-267, 0452+103, USNO-B1.0 1004-00046683, WDJ045455.82+102753.01, LTT 17709, Gaia DR2 3294543969653440256, Gaia DR3 3294543969653440256, G 83-43, G 97-4, TIC 450105508, J0454+1027, NLTT 14157, 2MASS J04545582+1027529, WD 0452+103, LSPM J0454+1027, WD 0452+10
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | Leggett et al. 2018 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 04 54 56.19 (0.05) | 04 54 56.18 (0.07) | 04 54 56.19 | 04 54 55.82 (0.05) | 04 54 56.18 | 04 54 54.53 | ||||||
| Declination | 10 27 49.00 (0.03) | 10 27 49.12 (0.05) | 10 27 49.00 | 10 27 53.01 (0.03) | 10 27 49.12 | 10 28 04.80 | ||||||
| Spectral type | DA | DA6.8 | DA | DA | DA6.5 | DA6 | ||||||
| Effective temperature | [K] | 7417.0 (39) | 7418.0 (151) | 7700.0 (115) | 7418.0 (46) | |||||||
| log(g) | [cgs] | 7.93 (0.01) | 7.56 (0.07) | 8.10 (0.08) | 7.92 (0.01) | |||||||
| Mass | [M☉] | 0.55 (0.009) | 0.369 (0.04) | 0.66 (0.05) | 0.545 (0.01) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 1.2200 | 0.7890 (0.06) | |||||||||
| 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] | 18.85 (0.06) | 18.88 (0.09) | 15.15 (0.7) | 18.88 (0.09) | 18.85 | 18.85 (0.06) | 18.88 (0.09) | ||||
| Distance | [pc] | 53.05 (0.2) | 52.97 (0.3) | 66.01 (3) | 52.95 (0.3) | 50.00 | 53.05 | 53.05 (0.2) | 52.95 (0.3) | |||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 345.5576601 (0.07) | 345.7830498 (0.2) | 345.558 (0.07) | 345.7830498 | |||||||
| Proper motion (declination) | [mas/yr] | -250.7110998 (0.05) | -250.6689813 (0.09) | -250.711 (0.05) | -250.6689813 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 17.10 | |||||||||||
| V magnitude | ||||||||||||
| R magnitude | 16.60 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.19 (0.01) | 16.15 (0.08) | ||||||||||
| H magnitude | 15.94 (0.2) | 15.95 (0.2) | ||||||||||
| K magnitude | 15.97 (0.03) | |||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 16.72 (0.003) | 16.74 | 16.72 | 16.72 (0.003) | 16.74 | |||||||
| BP magnitude | 16.88 (0.003) | 16.87 | 16.87 | |||||||||
| RP magnitude | 16.43 (0.005) | 16.43 | 16.43 | |||||||||
| Pan g magnitude | 16.87 (0.007) | 16.87 (0.004) | ||||||||||
| Pan r magnitude | 16.78 (0.01) | 16.78 (0.006) | ||||||||||
| Pan i magnitude | 16.79 (0.004) | 16.79 (0.004) | ||||||||||
| Pan z magnitude | 16.83 (0.01) | 16.83 (0.009) | ||||||||||
| Pan y magnitude | 16.86 (0.01) | 16.86 (0.009) | ||||||||||
| E(B-V) | 0.001 | |||||||||||
* 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.