All names: WDJ052458.92+771414.50, Gaia DR2 552280537401824384, Gaia DR3 552280537401824384, EGGR 526, UCAC4 837-007222, WD 0517+771, GD435, GD 435, Gaia EDR3 552280537401824384, 2MASS J05245902+7714148, TIC 141033984
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Gaia DR2 | Stilism | Bergeron et al. 2011 | Zuckerman et al. 2010 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 05 24 59.36 (0.02) | 05 24 59.34 (0.04) | 05 24 59.36 | 05 24 58.92 (0.02) | 05 24 59.34 | 05 24 57.94 | |||||
| Declination | 77 14 13.55 (0.03) | 77 14 13.58 (0.05) | 77 14 13.55 | 77 14 14.49 (0.03) | 77 14 13.58 | 77 14 18.60 | |||||
| Spectral type | DBA | DBA | DB | DB?4 | DB?4 | ||||||
| Effective temperature | [K] | 13150.0 (338) | 13250.0 | 13119.0 (109) | |||||||
| log(g) | [cgs] | 8.13 (0.1) | 8.05 (0.01) | ||||||||
| Mass | [M☉] | 0.67 (0.08) | 0.616 (0.008) | ||||||||
| log(Luminosity) | [L☉] | -2.44 | |||||||||
| Cooling age | [Gyr] | 0.3715 | |||||||||
| log(H/He) | -6 (0.8) | ||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | <-11.2 | ||||||||||
| log(Ca/H) | |||||||||||
| log(N/He) | |||||||||||
| log(O/He) | |||||||||||
| log(Na/He) | |||||||||||
| log(Mg/He) | |||||||||||
| log(Al/He) | |||||||||||
| log(Si/He) | |||||||||||
| log(P/He) | |||||||||||
| log(S/He) | |||||||||||
| log(Cl/He) | |||||||||||
| log(Sc/He) | |||||||||||
| log(Ti/He) | |||||||||||
| log(V/He) | |||||||||||
| log(Cr/He) | |||||||||||
| log(Mn/He) | |||||||||||
| log(Fe/He) | |||||||||||
| log(Co/He) | |||||||||||
| log(Ni/He) | |||||||||||
| log(Cu/He) | |||||||||||
| log(Zn/He) | |||||||||||
| log(Ga/He) | |||||||||||
| log(Ge/He) | |||||||||||
| log(Sr/He) | |||||||||||
| Parallax | [mas] | 13.55 (0.03) | 13.60 (0.06) | 13.55 | 13.55 (0.03) | 13.60 (0.06) | |||||
| Distance | [pc] | 73.80 (0.2) | 73.55 (0.3) | 69.00 | 73.80 | 73.80 (0.2) | 73.55 (0.3) | ||||
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 91.43922572 (0.03) | 91.43095619 (0.07) | 91.439 (0.03) | 91.43095619 | ||||||
| Proper motion (declination) | [mas/yr] | -59.32308332 (0.03) | -59.35072049 (0.1) | -59.323 (0.04) | -59.35072049 | ||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 16.00 (0.2) | ||||||||||
| V magnitude | 16.01 | 16.20 (0.07) | |||||||||
| R magnitude | 15.56 (0.4) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.48 (0.1) | ||||||||||
| H magnitude | 16.18 (0.2) | ||||||||||
| K magnitude | |||||||||||
| u magnitude | |||||||||||
| g magnitude | |||||||||||
| r magnitude | |||||||||||
| i magnitude | |||||||||||
| z magnitude | |||||||||||
| G magnitude | 15.99 (0.003) | 16.02 | 15.99 | 15.99 (0.003) | 16.02 | ||||||
| BP magnitude | 15.97 (0.003) | 15.94 | 15.94 | ||||||||
| RP magnitude | 16.03 (0.003) | 16.03 | 16.03 | ||||||||
| Pan g magnitude | 15.95 (0.005) | ||||||||||
| Pan r magnitude | 16.14 (0.003) | ||||||||||
| Pan i magnitude | 16.35 (0.002) | ||||||||||
| Pan z magnitude | 16.56 (0.007) | ||||||||||
| Pan y magnitude | 16.68 (0.01) | ||||||||||
| E(B-V) | 0.003 | ||||||||||
* 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.