USNO-A2.0 1200-08077641

All names: GALEX J165222.1+322214, Gaia DR2 1313335204514837248, SDSS J165222.17+322214.1, Gaia EDR3 1313335204514837248, Gaia DR3 1313335204514837248, WD 1650+324, SDSS J165222.17+322214.0, SDSS J165222.16+322214.2, SDSS J165222.17+322214.10, LAMOST J165222.17+322214.0, USNO-A2.0 1200-08077641

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 16 52 22.14 (0.06) 16 52 22.17 16 52 22.14 (0.09) 16 52 22.14 16 52 22.18 (0.06) 16 52 22.17 16 52 22.25 16 52 22.17
Declination 32 22 14.22 (0.07) 32 22 14.22 32 22 14.23 (0.09) 32 22 14.22 32 22 14.28 (0.07) 32 22 14.06 32 22 10.56 32 22 14.06
Spectral type DB DB DB DB DB DB DB+MS
Effective temperature [K] 16557.0 15329.0 15619.0 16796.0 (103) 15041.0 (605) 17207.0 (112) 16822.0 (124)
log(g) [cgs] 8.15 8.02 8.08 8.14 (0.06) 7.99 (0.05) 8.24 (0.06) 8.27 (0.06)
Mass [M] 0.685 0.604 0.64 0.583 (0.04) 0.751 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.2031
log(H/He) -6.148 <-5.11
log(C/He)
log(Ca/He) <-6.44
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] 4.65 (0.08) 4.77 (0.1) 4.65 4.65 (0.08)
Distance [pc] 214.98 (4) 209.56 (5) 210.00 214.98 214.98 (4)
Composition He
Proper motion (right ascension) [mas/yr] -33.24257455 (0.08) -33.35921613 (0.2) -33.243 (0.08) -33.5
Proper motion (declination) [mas/yr] -3.493484318 (0.09) -3.388190328 (0.2) -3.493 (0.09) -7.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude 17.20 (0.3)
V magnitude
R magnitude 17.30 (0.3)
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.67 (0.01) 17.67 (0.01) 17.62 (0.02) 17.61 17.64 (0.02)
g magnitude 17.74 (0.005) 17.74 (0.005) 17.73 (0.01) 17.73 17.75 (0.01)
r magnitude 18.05 (0.007) 18.05 (0.007) 18.05 (0.02) 18.04 18.04 (0.02)
i magnitude 18.29 (0.009) 18.28 (0.009) 18.30 (0.02) 18.30 18.30 (0.02)
z magnitude 18.55 (0.03) 18.55 (0.03) 18.59 (0.04) 18.59 18.61 (0.04)
G magnitude 17.89 (0.01) 17.92 17.89 17.89 (0.003)
BP magnitude 17.86 (0.01) 17.80
RP magnitude 18.03 (0.02) 18.01
Pan g magnitude 17.78 (0.004)
Pan r magnitude 18.07 (0.007)
Pan i magnitude 18.33 (0.007)
Pan z magnitude 18.58 (0.01)
Pan y magnitude 18.68 (0.03)
E(B-V) 0.018

* 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.