SDSS J172330.07+601504.8

All names: WD 1722+602.1, SDSS J172330.07+601504.8, USNO-B1.0 1502-00241049, Gaia DR2 1434391189918368896, SDSS J172330.06+601504.8, SDSS J172330.08+601504.90, Gaia EDR3 1434391189918368896, SDSS J172330.08+601504.9, Gaia DR3 1434391189918368896

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Simbad Eisenstein et al. 2006 White Dwarf Catalog (McCook & Sion 1999) Kleinman et al. 2013 Vincent et al. 2023
Right ascension 17 23 30.06 (0.4) 17 23 30.07 17 23 30.06 (0.4) 17 23 30.07 (0.4) 17 23 30.08 17 23 29.30 17 23 30.08
Declination 60 15 04.95 (0.3) 60 15 04.86 60 15 04.94 (0.4) 60 15 04.79 (0.3) 60 15 04.85 60 15 01.80 60 15 04.89
Spectral type DB DB DB DB3.0 DB DB
Effective temperature [K] 16267.0 16720.0 15115.0 16433.0 (354) 16711.0 (427)
log(g) [cgs] 7.36 7.75 7.63 7.75 (0.3) 7.78 (0.3)
Mass [M] 0.313 0.462 0.404 0.478 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.1150
log(H/He) <-5.792
log(C/He)
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] 1.71 (0.4) 1.53 (0.5) 1.71 (0.4)
Distance [pc] 585.03 (129) 652.22 (192) 585.03 (129)
Composition He
Proper motion (right ascension) [mas/yr] -5.319816687 (0.5) -3.940198399 (0.9) -5.32 (0.5) -6.4
Proper motion (declination) [mas/yr] 10.25426328 (0.4) 11.35350949 (0.8) 10.254 (0.4) 11.0
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 19.20
V magnitude
R magnitude 20.30
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.55 (0.03) 19.55 (0.03) 19.54 (0.03) 19.52 19.53 (0.03)
g magnitude 19.64 (0.01) 19.64 (0.01) 19.66 (0.02) 19.64 19.66 (0.02)
r magnitude 19.92 (0.02) 19.92 (0.02) 19.94 (0.03) 19.94 19.94 (0.03)
i magnitude 20.17 (0.04) 20.17 (0.04) 20.20 (0.04) 20.21 20.21 (0.04)
z magnitude 20.34 (0.2) 20.34 (0.2) 20.15 (0.1) 20.15 20.14 (0.1)
G magnitude 19.76 (0.05) 19.83 19.76 (0.005)
BP magnitude 19.76 (0.05) 19.64
RP magnitude 19.73 (0.08) 19.82
Pan g magnitude 19.68 (0.007)
Pan r magnitude 19.97 (0.02)
Pan i magnitude 20.22 (0.02)
Pan z magnitude 20.44 (0.03)
Pan y magnitude 20.04 (0.1)
E(B-V) 0.024

* 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.