2SLAQ J151859.71+002840.1

All names: SDSS J151859.72+002839.5, SDSS J151859.72+002839.59, Gaia EDR3 4419060480413319936, Gaia DR3 4419060480413319936, Gaia DR2 4419060480413319936, 2SLAQ J151859.71+002840.1, SDSS J151859.70+002840.0

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 15 18 59.72 (0.3) 15 18 59.71 15 18 59.72 (0.4) 15 18 59.72 15 18 59.71 (0.3)
Declination 00 28 39.39 (0.3) 00 28 40.08 00 28 39.41 (0.4) 00 28 39.39 00 28 40.10 (0.3)
Spectral type DZ DZ DA DZ DC
Effective temperature [K] 8557.0 7167.0 (100) 8763.0 (563)
log(g) [cgs] 8.33 8.00 (0) 8.22 (0.1)
Mass [M] 0.806 0.735 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 1.5380
log(H/He)
log(C/He)
log(Ca/He) -10.5 (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] 5.34 (0.3) 5.89 (0.5) 5.34 5.34 (0.3)
Distance [pc] 187.20 (12) 169.83 (13) 187.20 187.20 (12)
Composition He He
Proper motion (right ascension) [mas/yr] 13.93562573 (0.4) 15.50155652 (0.9) 13.936 (0.4)
Proper motion (declination) [mas/yr] -44.91441789 (0.4) -45.17517804 (0.8) -44.914 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.75 (0.03) 19.75 (0.03) 19.75 (0.03)
g magnitude 19.43 (0.01) 19.43 (0.01) 19.43 (0.01)
r magnitude 19.37 (0.01) 19.37 (0.01) 19.37 (0.01)
i magnitude 19.49 (0.02) 19.49 (0.02) 19.50 (0.02)
z magnitude 19.57 (0.06) 19.57 (0.06) 19.57 (0.06)
G magnitude 19.37 (0.03) 19.40 19.37 19.37 (0.005)
BP magnitude 19.51 (0.03) 19.53
RP magnitude 19.25 (0.05) 19.11
Pan g magnitude 19.43 (0.01)
Pan r magnitude 19.41 (0.009)
Pan i magnitude 19.49 (0.008)
Pan z magnitude 19.64 (0.02)
Pan y magnitude 19.60 (0.03)
E(B-V) 0.046

* 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.