All names: GALEX J205059.9-245205, Gaia DR3 6805808514433280000, 2MASS J20505987-2452035, LP 872-20, WD 2048-250, Gaia EDR3 6805808514433280000, NLTT 49985, J2051-2452, Gaia DR2 6805808514433280000, PSO J312.7503-24.8683, TIC 29257211, WDJ205059.90-245203.79
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Holberg et al. 2016 | Sion et al. 2014 | Giammichele et al. 2012 | Kawka et Vennes 2006 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 20 51 00.15 (0.03) | 20 51 00.14 (0.04) | 20 50 59.76 | 20 51 00.15 | 20 50 59.90 (0.03) | 20 51 00.14 | 20 50 59.76 | ||||||||||
Declination | -24 52 06.83 (0.02) | -24 52 06.74 (0.02) | -24 52 01.20 | -24 52 06.83 | -24 52 03.79 (0.02) | -24 52 06.74 | -24 51 56.16 | ||||||||||
Spectral type | DA | DA | DA | DA | DA | DA6.6 | DA | DA | DA | DA | DA6.6 | ||||||
Effective temperature | [K] | 7512.0 (58) | 7540.0 (24) | 7465.0 (70) | 7522.0 | 7613.0 (213) | 7630.0 | 7612.0 (221) | 7630.0 (150) | 7598.0 (30) | |||||||
log(g) | [cgs] | 8.07 (0.02) | 8.09 (0.005) | 8.07 (0.02) | 8.08 | 8.18 (0.3) | (0) | 8.31 (0.3) | 8.10 (0.007) | ||||||||
Mass | [M☉] | 0.635 (0.01) | 0.647 (0.004) | 0.637 (0.01) | 0.644 | 0.71 (0.2) | 0.59 (0) | 0.79 (0.2) | 0.652 (0.006) | ||||||||
log(Luminosity) | [L☉] | -3.31 | |||||||||||||||
Cooling age | [Gyr] | 1.4800 | 1.4170 (0.05) | 1.4100 | 1.9400 | 1.2300 | |||||||||||
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] | 37.31 (0.04) | 37.31 (0.04) | 37.31 (0.05) | 37.31 (0.05) | 37.31 (0.05) | 37.31 | 37.31 (0.04) | 37.31 (0.05) | ||||||||
Distance | [pc] | 26.80 (0.03) | 26.80 (0.03) | 26.80 (0.04) | 26.80 (0.04) | 26.80 (0.04) | 24.56 (2) | 22.00 | 28.20 (1) | 22.00 | 26.80 | 26.80 (0.03) | 26.80 (0.04) | ||||
Composition | H | H | H | H | H | ||||||||||||
Proper motion (right ascension) | [mas/yr] | 213.1547225 (0.04) | 213.2666855 (0.08) | 213.155 (0.04) | 213.2666855 | ||||||||||||
Proper motion (declination) | [mas/yr] | -190.3150241 (0.03) | -190.2722073 (0.05) | -190.315 (0.03) | -190.2722073 | ||||||||||||
Variability | |||||||||||||||||
Magnetic | |||||||||||||||||
Bd | [MG] | ||||||||||||||||
Infrared excess (disk) | |||||||||||||||||
Binarity | |||||||||||||||||
B magnitude | 15.80 | ||||||||||||||||
V magnitude | 15.42 | 15.42 | 15.60 | ||||||||||||||
R magnitude | 15.20 | ||||||||||||||||
I magnitude | |||||||||||||||||
J magnitude | 14.85 (0.004) | 14.90 (0.04) | 14.90 | 14.90 (0.04) | |||||||||||||
H magnitude | 14.70 (0.04) | 14.70 (0.04) | 14.70 | 14.70 (0.04) | |||||||||||||
K magnitude | 14.70 (0.01) | 14.60 (0.08) | 14.60 | 14.60 (0.08) | |||||||||||||
u magnitude | |||||||||||||||||
g magnitude | 15.57 (0.003) | ||||||||||||||||
r magnitude | 15.46 (0.003) | ||||||||||||||||
i magnitude | 15.46 (0.001) | ||||||||||||||||
z magnitude | 15.54 (0.005) | ||||||||||||||||
G magnitude | 15.41 (0.002) | 15.42 | 15.41 | 15.41 (0.003) | 15.42 | ||||||||||||
BP magnitude | 15.56 (0.002) | 15.56 | 15.56 | ||||||||||||||
RP magnitude | 15.13 (0.002) | 15.13 | 15.13 | ||||||||||||||
Pan g magnitude | 15.57 (0.003) | 15.57 (0.003) | 15.57 (0.003) | ||||||||||||||
Pan r magnitude | 15.46 (0.003) | 15.46 (0.003) | 15.46 (0.003) | ||||||||||||||
Pan i magnitude | 15.46 (0.001) | 15.46 (0.001) | 15.46 (0.001) | ||||||||||||||
Pan z magnitude | 15.54 (0.005) | 15.54 (0.005) | 15.54 (0.005) | ||||||||||||||
Pan y magnitude | 15.59 (0.007) | 15.59 (0.008) | 15.59 (0.008) | ||||||||||||||
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.