WD 2050-072

All names: Gaia DR3 6909994246262080000, GALEX J205316.3-070204, SDSS J205316.33-070204.2, WD 2050-072, J2053-0702, Gaia DR2 6909994246262080000, Gaia EDR3 6909994246262080000, WDJ205316.33-070204.16, SDSS J205316.34-070204.3, SDSS J205316.34-070204.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Kilic et al. 2025 Caron et al. 2023 Coutu et al. 2019 Gaia DR2 Stilism Koester et al. 2006 Dufour et al. 2005 Harris et al. 2003 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 20 53 16.36 (0.2) 20 53 16.34 20 53 16.34 20 53 16.36 (0.2) 20 53 16.36 20 53 16.34 (0.2) 20 53 16.36 20 53 15.89 20 53 16.34
Declination -07 02 05.82 (0.1) -07 02 04.24 -07 02 04.16 -07 02 05.77 (0.2) -07 02 05.82 -07 02 04.16 (0.1) -07 02 05.77 -07 02 00.60 -07 02 04.29
Spectral type DQ DQ DQ DQ DQ DQ DQ DQ DQ DQ DQ DQ
Effective temperature [K] 6632.0 (26) 6741.0 (25) 6584.0 (80) 6382.0 6390.0 (40) 6718.0 (54) 6327.0 (23)
log(g) [cgs] 8.09 (0.02) 8.10 (0.03) 8.04 8.00 (0) 8.00 (0) 8.12 (0.03) 10.00 (0.003)
Mass [M] 0.631 (0.02) 0.634 (0.03) 0.5952 0.649 (0.02)
log(Luminosity) [L]
Cooling age [Gyr] 2.0500 1.9200
log(H/He)
log(C/He) -5.19 -5.1 -5.2693 (0.04) -5.45 (0.02) -5.25 (0.1)
log(Ca/He)
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] 10.41 (0.2) 10.19 (0.3) 10.19 10.19 (0.3) 10.41 10.41 (0.2) 10.19 (0.3)
Distance [pc] 96.07 (2) 98.14 (3) 98.14 (3) 98.14 (3) 96.00 96.07 96.07 (2) 98.14 (3)
Composition He He He He He
Proper motion (right ascension) [mas/yr] 22.7395071 (0.2) 22.80312728 (0.5) 22.74 (0.2) 22.803
Proper motion (declination) [mas/yr] -104.0513173 (0.2) -104.2256811 (0.4) -104.051 (0.2) -104.226
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 18.27 (0.04) 18.27 (0.04)
H magnitude 18.04 (0.04) 18.04 (0.04)
K magnitude 18.21 (0.07) 18.21 (0.07)
u magnitude 19.28 (0.03) 19.27 (0.03) 19.33 19.28 (0.03) 19.28 (0.03) 19.33 19.29 (0.03)
g magnitude 19.16 (0.01) 19.22 19.16 (0.01) 19.16 (0.01) 19.22 19.19 (0.02)
r magnitude 18.74 (0.01) 18.75 18.74 (0.01) 18.74 (0.01) 18.75 18.74 (0.02)
i magnitude 18.60 (0.01) 18.62 18.60 (0.01) 18.60 (0.01) 18.62 18.61 (0.01)
z magnitude 18.71 (0.04) 18.74 18.71 (0.04) 18.71 (0.04) 18.74 18.71 (0.04)
G magnitude 18.79 (0.02) 18.82 18.79 18.79 (0.003) 18.82
BP magnitude 19.05 (0.02) 18.95 18.95
RP magnitude 18.39 (0.03) 18.33 18.33
Pan g magnitude 19.19 (0.01) 19.19 (0.01)
Pan r magnitude 18.77 (0.005) 18.77 (0.005)
Pan i magnitude 18.67 (0.009) 18.67 (0.008)
Pan z magnitude 18.75 (0.007) 18.75 (0.006)
Pan y magnitude 18.83 (0.03) 18.83 (0.03)
E(B-V) 0.005

* Constant surface field

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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.