SDSS J043939.03+095927.1

All names: SDSS J043939.03+095927.1, Gaia DR2 3293892126760303616, GALEX J043939.0+095928, Gaia EDR3 3293892126760303616, SDSS J043939.03+095927.0, Gaia DR3 3293892126760303616

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Bedard et al. 2020 Gaia DR2 Stilism Simbad Kleinman et al. 2013
Right ascension 04 39 39.03 (0.4) 04 39 39.03 04 39 39.03 (0.5) 04 39 39.03 (0.4) 04 39 39.03
Declination 09 59 26.97 (0.2) 09 59 27.05 09 59 26.97 (0.3) 09 59 27.10 (0.2) 09 59 27.09
Spectral type DB DBA+M DBAM:
Effective temperature [K] 39087.0 (4260) 34759.0 (2565)
log(g) [cgs] 8.04 (0.4) 8.26 (0.2)
Mass [M] 0.65 (0.2)
log(Luminosity) [L] -0.46 (0.3)
Cooling age [Gyr] 0.0044 (0.002)
log(H/He)
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) 0.64 (0.6) 0.50 (0.5)
Distance [pc] 2013.01 (1960) 1563.48 (1561) 2012.88 (1960)
Composition He
Proper motion (right ascension) [mas/yr] 2.716327679 (0.5) 1.537057223 (1) 2.716 (0.5)
Proper motion (declination) [mas/yr] -8.017143393 (0.4) -7.952129226 (0.7) -8.017 (0.4)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.82 (0.03) 19.82 (0.04) 19.83 (0.03)
g magnitude 19.88 (0.01) 19.88 (0.01) 19.92 (0.02)
r magnitude 20.06 (0.02) 20.06 (0.02) 20.10 (0.02)
i magnitude 20.21 (0.03) 20.21 (0.03) 20.23 (0.03)
z magnitude 20.34 (0.1) 20.34 (0.1) 20.35 (0.1)
G magnitude 19.95 (0.05) 20.01 19.95 (0.005)
BP magnitude 19.97 (0.05) 19.90
RP magnitude 20.08 (0.09) 19.88
Pan g magnitude 19.95 (0.03)
Pan r magnitude 20.11 (0.009)
Pan i magnitude 20.23 (0.03)
Pan z magnitude 20.32 (0.06)
Pan y magnitude 19.86 (0.1)
E(B-V) 0.288

* 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.