US 1180

All names: SDSS J100156.66+452003.7, Gaia DR2 809908614436438144, GALEX J100156.6+452004, US 1180, Gaia EDR3 809908614436438144, SDSS J100156.61+452004.3, Gaia DR3 809908614436438144, SDSS J100156.61+452004.2, WD 0958+455

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 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 10 01 56.70 (0.09) 10 01 56.61 10 01 56.69 (0.1) 10 01 56.70 10 01 56.61 (0.09) 10 01 56.61 10 01 56.59 10 01 56.61
Declination 45 20 03.56 (0.09) 45 20 04.24 45 20 03.59 (0.2) 45 20 03.56 45 20 04.35 (0.09) 45 20 04.27 45 20 01.32 45 20 04.27
Spectral type DB DB DBH DB DB DBH:M: DB
Effective temperature [K] 12464.0 13701.0 (92) 12690.0 (367) 14677.0 (227) 13801.0 (159)
log(g) [cgs] 7.92 8.00 (0) 7.97 (0.05) 8.74 (0.2) 8.45 (0.1)
Mass [M] 0.538 0.567 (0.04)
log(Luminosity) [L]
Cooling age [Gyr] 0.3065
log(H/He) <-5.6
log(C/He)
log(Ca/He) <-8.58
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] 4.79 (0.1) 4.68 (0.2) 4.79 4.79 (0.1)
Distance [pc] 208.55 (5) 213.70 (1e+01) 220.00 208.55 208.55 (5)
Composition He
Proper motion (right ascension) [mas/yr] 57.1301359 (0.1) 57.17626984 (0.2) 57.13 (0.1) 58.9
Proper motion (declination) [mas/yr] -49.08264081 (0.1) -48.77186042 (0.3) -49.083 (0.1) -48.6
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 18.00
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.13 (0.01) 18.13 (0.01) 18.13 (0.02) 18.13 18.13 (0.02)
g magnitude 18.11 (0.006) 18.11 (0.006) 18.12 (0.01) 18.12 18.12 (0.01)
r magnitude 18.37 (0.008) 18.37 (0.008) 18.38 (0.01) 18.37 18.37 (0.01)
i magnitude 18.53 (0.01) 18.53 (0.01) 18.56 (0.02) 18.55 18.55 (0.02)
z magnitude 18.76 (0.03) 18.76 (0.03) 18.77 (0.03) 18.77 18.76 (0.03)
G magnitude 18.23 (0.009) 18.26 18.23 18.23 (0.003)
BP magnitude 18.21 (0.009) 18.16
RP magnitude 18.25 (0.01) 18.23
Pan g magnitude 18.18 (0.006)
Pan r magnitude 18.36 (0.005)
Pan i magnitude 18.56 (0.004)
Pan z magnitude 18.79 (0.02)
Pan y magnitude 18.91 (0.03)
E(B-V) 0.012

* 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.