SDSS J145558.75+201057.6

All names: SDSS J145558.75+201057.6, Gaia DR3 1237285592992374784, SDSS J145558.75+201057.65, Gaia DR2 1237285592992374784, J1455+2010, Gaia EDR3 1237285592992374784

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Coutu et al. 2019 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 14 55 58.73 (0.9) 14 55 58.75 14 55 58.75 14 55 58.73 (1) 14 55 58.77 (0.9)
Declination 20 10 58.09 (1) 20 10 57.63 20 10 57.61 20 10 58.07 (2) 20 10 57.41 (1)
Spectral type DZ DZ DZ DZ DZ
Effective temperature [K] 7737.0 (285) 7184.0 7852.0 (153)
log(g) [cgs] 8.93 8.75 8.00 (0)
Mass [M] 1.156 1.067
log(Luminosity) [L]
Cooling age [Gyr] 3.3000 4.1140
log(H/He) <-3.6398
log(C/He)
log(Ca/He) -8.3779 (0.2) -8.869 (0.1)
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] 3.27 (1) 5.84 5.84 (2) 3.27 (1)
Distance [pc] 305.70 (140) 171.26 (66) 171.26 (66) 305.71 (140)
Composition He He He
Proper motion (right ascension) [mas/yr] -31.10526417 (1) -34.23869014 (2) -31.105 (1)
Proper motion (declination) [mas/yr] 42.13184633 (1) 44.83324472 (3) 42.132 (1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 21.26 (0.1) 21.23 (0.1) 21.23 (0.1)
g magnitude 20.85 (0.03) 20.87 (0.04) 20.87 (0.04)
r magnitude 20.73 (0.03) 20.74 (0.03) 20.74 (0.03)
i magnitude 20.75 (0.05) 20.76 (0.04) 20.76 (0.04)
z magnitude 20.73 (0.2) 20.73 (0.2) 20.73 (0.2)
G magnitude 20.72 (0.2) 20.82 20.72 (0.01)
BP magnitude 20.65 (0.2) 20.84
RP magnitude 20.65 (0.1) 20.25
Pan g magnitude 20.82 (0.01)
Pan r magnitude 20.69 (0.02)
Pan i magnitude 20.69 (0.05)
Pan z magnitude 20.69 (0.1)
Pan y magnitude
E(B-V) 0.034

* 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.