SDSS J153010.84+362750.2

All names: SDSS J153010.84+362750.2, Gaia DR2 1375196885493359360, Gaia DR3 1375196885493359360, Gaia EDR3 1375196885493359360, SDSS J153010.84+362750.20

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 15 30 10.83 (0.3) 15 30 10.85 15 30 10.83 (0.4) 15 30 10.85 (0.3) 15 30 10.84
Declination 36 27 50.22 (0.4) 36 27 50.22 36 27 50.22 (0.6) 36 27 50.13 (0.4) 36 27 50.17
Spectral type DBA: DBA DBA: DB+MS
Effective temperature [K] 18227.0 18716.0 15500.0 17592.0 (718)
log(g) [cgs] 8.24 7.38 7.09 7.99 (0.3)
Mass [M] 0.742 0.327 0.246
log(Luminosity) [L]
Cooling age [Gyr] 0.0746
log(H/He) <-5.253
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] 0.50 (0.5) 0.82 (0.6) 0.50 (0.5)
Distance [pc] 1992.29 (1927) 1219.57 (932) 1992.43 (1927)
Composition He
Proper motion (right ascension) [mas/yr] -14.49155245 (0.4) -14.41726362 (0.9) -14.492 (0.4)
Proper motion (declination) [mas/yr] 5.594170573 (0.5) 5.899818361 (1) 5.594 (0.5)
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 20.12 (0.04) 20.12 (0.04) 20.12 (0.04)
g magnitude 20.18 (0.02) 20.18 (0.02) 20.21 (0.02)
r magnitude 20.51 (0.03) 20.51 (0.03) 20.54 (0.03)
i magnitude 20.74 (0.05) 20.74 (0.05) 20.79 (0.05)
z magnitude 20.98 (0.3) 20.98 (0.3) 21.00 (0.3)
G magnitude 20.37 (0.07) 20.44 20.37 (0.006)
BP magnitude 20.25 (0.07) 20.16
RP magnitude 20.28 (0.09) 20.50
Pan g magnitude 20.31 (0.03)
Pan r magnitude 20.49 (0.04)
Pan i magnitude 20.78 (0.02)
Pan z magnitude 20.88 (0.2)
Pan y magnitude
E(B-V) 0.024

* 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.