SDSS J113425.15+644305.1

All names: GALEX J113425.0+644305, SDSS J113425.15+644305.1, SDSS J113425.11+644305.35, USNO-A2.0 1500-05448070, USNO-B1.0 1547-00163046, Gaia DR2 1056274608619883392, Gaia DR3 1056274608619883392, SDSS J113425.11+644305.3, SDSS J113425.14+644305.1, SDSS J113425.15+644305.0, Gaia EDR3 1056274608619883392

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Kepler et al. 2016 Koester & Kepler 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 11 34 25.12 (0.08) 11 34 25.15 11 34 25.12 (0.1) 11 34 25.12 11 34 25.15 (0.08)
Declination 64 43 05.22 (0.09) 64 43 05.13 64 43 05.22 (0.1) 64 43 05.22 64 43 05.09 (0.09)
Spectral type DBA DBA DB DBA DB
Effective temperature [K] 15903.0 16917.0 14667.0 16076.0 (62) 16137.0 (70) 17520.0 (1237)
log(g) [cgs] 8.01 8.19 7.97 7.98 (0.04) 8.04 (0.05) 8.17 (0.08)
Mass [M] 0.595 0.707 0.574 0.5720000000000001 (0.02) 0.694 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.2045
log(H/He) -5.477 -5.42 (0.3)
log(C/He)
log(Ca/He) <-7.01
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] 4.09 (0.1) 4.30 (0.1) 4.09 4.09 (0.1)
Distance [pc] 244.77 (7) 232.74 (8) 242.00 244.77 244.77 (7)
Composition He
Proper motion (right ascension) [mas/yr] -11.61200279 (0.1) -11.41096232 (0.2) -11.612 (0.1)
Proper motion (declination) [mas/yr] 8.093491206 (0.1) 7.92869213 (0.2) 8.093 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 17.00
V magnitude
R magnitude 17.60
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 17.89 (0.01) 17.87 (0.02) 17.90 (0.01)
g magnitude 17.96 (0.006) 17.98 (0.02) 17.97 (0.006)
r magnitude 18.29 (0.007) 18.29 (0.01) 18.30 (0.007)
i magnitude 18.58 (0.01) 18.57 (0.02) 18.59 (0.01)
z magnitude 18.81 (0.04) 18.79 (0.05) 18.81 (0.04)
G magnitude 18.10 (0.01) 18.13 18.10 18.10 (0.003)
BP magnitude 18.06 (0.01) 18.01
RP magnitude 18.23 (0.03) 18.18
Pan g magnitude 18.02 (0.007)
Pan r magnitude 18.26 (0.005)
Pan i magnitude 18.53 (0.005)
Pan z magnitude 18.74 (0.01)
Pan y magnitude 18.91 (0.03)
E(B-V) 0.018

* 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.