SDSS J152249.59+553353.9

All names: SDSS J152249.56+553354.0, Gaia DR3 1599890474701070336, Gaia DR2 1599890474701070336, SDSS J152249.59+553353.9, Gaia EDR3 1599890474701070336, SDSS J152249.56+553354.00

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 15 22 49.55 (0.1) 15 22 49.60 15 22 49.55 (0.2) 15 22 49.55 15 22 49.59 (0.1)
Declination 55 33 53.90 (0.2) 55 33 53.97 55 33 53.90 (0.3) 55 33 53.90 55 33 53.91 (0.2)
Spectral type DBA DBA DB DBA DB
Effective temperature [K] 15348.0 15118.0 15822.0 44272.0 (899) 15894.0 (81) 14644.0 (1081)
log(g) [cgs] 7.86 7.79 7.89 7.82 (0.08) 8.00 (0) 7.84 (0.1)
Mass [M] 0.515 0.479 0.53 0.551 (0.03) 0.5 (0.09)
log(Luminosity) [L]
Cooling age [Gyr] 0.1388
log(H/He) -6.013 <-5.14
log(C/He)
log(Ca/He) <-6.79
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] 2.59 (0.2) 2.43 (0.2) 2.59 2.59 (0.2)
Distance [pc] 386.45 (26) 411.75 (41) 377.00 386.45 386.44 (26)
Composition He
Proper motion (right ascension) [mas/yr] -23.29150756 (0.2) -23.49497943 (0.4) -23.292 (0.2)
Proper motion (declination) [mas/yr] -0.92998888 (0.2) -0.923468122 (0.5) -0.93 (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 18.85 (0.02) 18.87 (0.02) 18.85 (0.02)
g magnitude 18.90 (0.009) 18.92 (0.02) 18.90 (0.009)
r magnitude 19.21 (0.01) 19.22 (0.02) 19.21 (0.01)
i magnitude 19.45 (0.02) 19.46 (0.02) 19.44 (0.02)
z magnitude 19.62 (0.06) 19.60 (0.1) 19.62 (0.06)
G magnitude 19.07 (0.02) 19.12 19.07 19.07 (0.003)
BP magnitude 19.04 (0.02) 18.97
RP magnitude 19.15 (0.03) 19.22
Pan g magnitude 18.95 (0.002)
Pan r magnitude 19.19 (0.008)
Pan i magnitude 19.50 (0.02)
Pan z magnitude 19.94 (0.1)
Pan y magnitude 19.68 (0.1)
E(B-V) 0.020

* 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.