SDSS J115655.23+162147.5

All names: Gaia EDR3 3926060941355293184, Gaia DR3 3926060941355293184, SDSS J115655.23+162147.5, Gaia DR2 3926060941355293184, SDSS J115655.23+162147.50, SDSS J115655.22+162147.4, SDSS J115655.22+162147.3

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 Kleinman et al. 2013 Vincent et al. 2023
Right ascension 11 56 55.21 (0.3) 11 56 55.22 11 56 55.21 (0.5) 11 56 55.23 (0.3) 11 56 55.23
Declination 16 21 47.34 (0.2) 16 21 47.43 16 21 47.34 (0.2) 16 21 47.46 (0.2) 16 21 47.47
Spectral type DB DB DB DB
Effective temperature [K] 15407.0 15616.0 13185.0 15869.0 (285)
log(g) [cgs] 8.13 8.29 8.17 8.41 (0.2)
Mass [M] 0.669 0.772 0.692 0.841 (0.1)
log(Luminosity) [L]
Cooling age [Gyr] 0.3893
log(H/He) -5.501
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] 2.57 (0.3) 3.20 (0.4) 2.57 (0.3)
Distance [pc] 389.14 (44) 312.18 (42) 389.15 (44)
Composition He
Proper motion (right ascension) [mas/yr] -15.40981347 (0.5) -17.02490159 (1) -15.41 (0.5)
Proper motion (declination) [mas/yr] -7.851315953 (0.2) -8.767409428 (0.5) -7.851 (0.2)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.17 (0.03) 19.17 (0.03) 19.16 (0.03)
g magnitude 19.20 (0.01) 19.20 (0.01) 19.22 (0.02)
r magnitude 19.41 (0.02) 19.41 (0.02) 19.43 (0.02)
i magnitude 19.66 (0.03) 19.66 (0.03) 19.69 (0.03)
z magnitude 19.91 (0.1) 19.91 (0.1) 19.87 (0.1)
G magnitude 19.29 (0.02) 19.34 19.29 (0.004)
BP magnitude 19.24 (0.02) 19.18
RP magnitude 19.38 (0.04) 19.35
Pan g magnitude 19.22 (0.008)
Pan r magnitude 19.42 (0.01)
Pan i magnitude 19.67 (0.02)
Pan z magnitude 19.89 (0.03)
Pan y magnitude 19.96 (0.07)
E(B-V) 0.023

* 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.