SDSS J152521.13+042111.0

All names: GALEX J152521.1+042111, SDSS J152521.13+042111.0, Gaia DR3 4428452444314364288, Gaia EDR3 4428452444314364288, SDSS J152521.13+042111.02, Gaia DR2 4428452444314096640

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Kepler et al. 2015 Simbad Vincent et al. 2023
Right ascension 15 25 21.11 (0.3) 15 25 21.13 15 25 21.11 (0.4) 15 25 21.14 (0.3)
Declination 04 21 10.96 (0.2) 04 21 11.08 04 21 10.97 (0.4) 04 21 11.13 (0.2)
Spectral type DBA DBA DBA DB
Effective temperature [K] 14802.0 14656.0 12535.0 15522.0 (131) 15358.0 (123)
log(g) [cgs] 8.02 8.07 7.89 8.33 (0.09) 8.20 (0.08)
Mass [M] 0.602 0.631 0.523 0.715 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 0.2899
log(H/He) -5.917 <-5.24
log(C/He)
log(Ca/He) <-7.07
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] 2.47 (0.3) 2.70 (0.7) 2.47 (0.3)
Distance [pc] 405.64 (48) 370.92 (90) 325.00 405.65 (48)
Composition He
Proper motion (right ascension) [mas/yr] -29.33817257 (0.4) -29.56156071 (1) -29.338 (0.4)
Proper motion (declination) [mas/yr] -10.32143394 (0.3) -10.85231097 (1) -10.321 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.25 (0.02) 19.26 (0.03) 19.25 (0.03)
g magnitude 19.27 (0.01) 19.28 (0.02) 19.27 (0.01)
r magnitude 19.52 (0.02) 19.52 (0.02) 19.52 (0.02)
i magnitude 19.75 (0.03) 19.74 (0.03) 19.75 (0.03)
z magnitude 19.86 (0.09) 19.89 (0.09) 19.86 (0.09)
G magnitude 19.40 (0.04) 19.43 19.40 (0.005)
BP magnitude 19.36 (0.04) 19.38
RP magnitude 19.41 (0.05) 19.35
Pan g magnitude 19.31 (0.01)
Pan r magnitude 19.52 (0.01)
Pan i magnitude 19.75 (0.01)
Pan z magnitude 19.91 (0.04)
Pan y magnitude 19.86 (0.08)
E(B-V) 0.031

* 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.