SDSS J134521.30+551037.1

All names: SDSS J134521.30+551037.1, Gaia DR2 1562248311870845696, Gaia DR3 1562248311870845696, SDSS J134521.28+551037.4, Gaia EDR3 1562248311870845696, GALEX J134521.1+551037

Parameter Unit Gaia EDR3 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 13 45 21.30 (0.1) 13 45 21.30 13 45 21.27 (0.1)
Declination 55 10 37.13 (0.1) 55 10 37.13 55 10 37.48 (0.1)
Spectral type DB DB DB+MS
Effective temperature [K] 15174.0 (55) 12307.0 (494)
log(g) [cgs] 8.00 (0) 7.70 (0.07)
Mass [M☉] 0.428 (0.05)
log(Luminosity) [L☉]
Cooling age [Gyr]
log(H/He) <-5.5
log(C/He)
log(Ca/He) <-7.63
log(Ca/H)
Parallax [mas] 3.38 (0.1) 3.38 3.38 (0.1)
Distance [pc] 295.54 (12) 305.00 295.54 295.54 (12)
Composition
Proper motion (right ascension) [mas/yr] 11.80113732 (0.1) 11.801 (0.1)
Proper motion (declination) [mas/yr] -21.89524789 (0.1) -21.895 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity WDMS
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.58 (0.02)
g magnitude 18.56 (0.008)
r magnitude 18.85 (0.01)
i magnitude 18.96 (0.01)
z magnitude 19.53 (0.06)
G magnitude 18.73 (0.01) 18.73 18.73 (0.003)
BP magnitude 18.68 (0.01)
RP magnitude 18.54 (0.03)
Pan g magnitude
Pan r magnitude
Pan i magnitude
Pan z magnitude
Pan y magnitude
E(B-V) 0.019

* 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.