SDSS J130247.76+221551.0

All names: SDSS J130247.76+221551.0, Gaia DR3 3944459138142121728, Gaia DR2 3944459138142121728, J1302+2215, SDSS J130247.76+221551.08, Gaia EDR3 3944459138142121728

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 13 02 47.73 (1) 13 02 47.77 13 02 47.76 13 02 47.74 (0.8) 13 02 47.78 (1)
Declination 22 15 50.89 (0.5) 22 15 51.05 22 15 51.08 22 15 50.89 (0.5) 22 15 51.02 (0.5)
Spectral type DZ DZ DZ DZ DZ
Effective temperature [K] 7092.0 (310) 7558.0 7999.0 (193)
log(g) [cgs] 7.45 7.71 8.00 (0)
Mass [M] 0.3077 0.436
log(Luminosity) [L]
Cooling age [Gyr] 0.8330 0.8601
log(H/He) <-4.3266
log(C/He)
log(Ca/He) -10.3813 (0.2) -8.957 (0.2)
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] 1.92 (1) 2.73 2.73 (1) 1.92 (1)
Distance [pc] 521.44 (295) 365.80 (146) 365.80 (146) 521.43 (295)
Composition He He He
Proper motion (right ascension) [mas/yr] -41.42932918 (2) -40.8205855 (2) -41.429 (2)
Proper motion (declination) [mas/yr] -8.569351846 (1) -9.013457036 (1) -8.569 (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 21.40 (0.1) 21.34 (0.1) 21.34 (0.1)
g magnitude 20.71 (0.03) 20.72 (0.03) 20.72 (0.03)
r magnitude 20.57 (0.03) 20.58 (0.03) 20.58 (0.03)
i magnitude 20.63 (0.04) 20.66 (0.04) 20.66 (0.04)
z magnitude 20.68 (0.2) 20.67 (0.2) 20.67 (0.2)
G magnitude 20.57 (0.09) 20.64 20.57 (0.008)
BP magnitude 20.69 (0.09) 20.61
RP magnitude 20.11 (0.1) 20.57
Pan g magnitude 20.72 (0.06)
Pan r magnitude 20.58 (0.02)
Pan i magnitude 20.67 (0.04)
Pan z magnitude 20.71 (0.03)
Pan y magnitude
E(B-V) 0.022

* 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.