All names: WD 2157-574, LEHPM 4327, 2MASS J22004535-5711234, LEHPM 1-4327, WDJ220045.37-571123.28, GALEX J220045.0-571123, WT 853, Gaia EDR3 6412251624488840448, EC 21573-5725, Gaia DR3 6412251624488840448, TIC 265530194, Gaia DR2 6412251624488840448
| Parameter | Unit | Gaia EDR3 | O'Brien et al. 2024 | Gaia DR2 | Stilism | Bergfors et al. 2014 | Subasavage et al. 2007 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 22 00 44.96 (0.02) | 22 00 44.97 (0.03) | 22 00 45.37 | 22 00 44.96 | 22 00 45.37 (0.02) | 22 00 44.97 | 22 00 45.22 | ||||
| Declination | -57 11 24.23 (0.02) | -57 11 24.20 (0.03) | -57 11 23.40 | -57 11 24.23 | -57 11 23.27 (0.02) | -57 11 24.20 | -57 11 16.08 | ||||
| Spectral type | DAZ | DAZ | DAZ | DA | DAZ | DAZ7.0 | |||||
| Effective temperature | [K] | 7114.0 (55) | 7220.0 | 7220.0 (246) | 7173.0 (27) | ||||||
| log(g) | [cgs] | 8.10 (0.02) | 8.12 (0.006) | ||||||||
| Mass | [M☉] | 0.651 (0.01) | 0.664 (0.006) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | -8.0 | ||||||||||
| 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] | 34.05 (0.03) | 34.05 (0.03) | 33.97 (0.04) | 34.05 | 34.05 (0.03) | 33.97 (0.04) | ||||
| Distance | [pc] | 29.37 (0.03) | 29.37 (0.03) | 29.44 (0.04) | 32.00 | 29.37 | 29.37 (0.03) | 29.44 (0.04) | |||
| Composition | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -212.8239209 (0.03) | -212.7968531 (0.06) | -212.824 (0.03) | -212.7968531 | ||||||
| Proper motion (declination) | [mas/yr] | -59.49536471 (0.03) | -59.49460678 (0.07) | -59.495 (0.03) | -59.49460678 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 16.26 | ||||||||||
| V magnitude | 15.96 | ||||||||||
| R magnitude | 15.73 | ||||||||||
| I magnitude | 15.49 | ||||||||||
| J magnitude | 15.18 (0.04) | 15.18 (0.04) | |||||||||
| H magnitude | 15.05 (0.07) | 15.05 (0.07) | |||||||||
| K magnitude | 15.28 (0.2) | 15.28 (0.2) | |||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 15.84 (0.003) | 15.85 | 15.84 | 15.84 (0.003) | 15.85 | ||||||
| BP magnitude | 16.03 (0.003) | 16.02 | 16.02 | ||||||||
| RP magnitude | 15.52 (0.002) | 15.53 | 15.53 | ||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| 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.