SDSS J084303.43+160719.4

All names: GALEX J084303.4+160719, Gaia EDR3 658116601815875200, Gaia DR3 658116601815875200, SDSS J084303.44+160719.4, SDSS J084303.43+160719.4, Gaia DR2 658116601815875200, SDSS J084303.44+160719.40

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Genest-Beaulieu & Bergeron 2019 (spectroscopic) Genest-Beaulieu & Bergeron 2019 (photometric) MWDD HE Gaia DR2 Stilism Koester & Kepler 2015 Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 43 03.43 (0.2) 08 43 03.44 08 43 03.43 (0.3) 08 43 03.43 08 43 03.44 (0.2) 08 43 03.44
Declination 16 07 19.43 (0.08) 16 07 19.44 16 07 19.43 (0.2) 16 07 19.43 16 07 19.42 (0.08) 16 07 19.40
Spectral type DB DB DB DBAH: DB
Effective temperature [K] 15625.0 16546.0 14796.0 15714.0 (89) 14968.0 (830) 16005.0 (158)
log(g) [cgs] 8.14 8.07 7.94 8.00 (0) 7.91 (0.1) 8.13 (0.1)
Mass [M] 0.673 0.633 0.553 0.538 (0.09)
log(Luminosity) [L]
Cooling age [Gyr] 0.1871
log(H/He) -5.41 <-5.15
log(C/He)
log(Ca/He) <-6.89
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] 3.19 (0.3) 3.24 (0.4) 3.19 3.19 (0.3)
Distance [pc] 313.91 (26) 308.98 (40) 303.00 313.91 313.90 (26)
Composition He
Proper motion (right ascension) [mas/yr] -8.478567394 (0.3) -8.616557282 (0.7) -8.479 (0.3)
Proper motion (declination) [mas/yr] 0.271364633 (0.2) 0.535096889 (0.4) 0.271 (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 18.38 (0.01) 18.38 (0.01) 18.41 (0.02)
g magnitude 18.43 (0.007) 18.43 (0.007) 18.44 (0.03)
r magnitude 18.80 (0.01) 18.80 (0.01) 18.83 (0.02)
i magnitude 19.04 (0.01) 19.04 (0.01) 19.03 (0.02)
z magnitude 19.26 (0.05) 19.26 (0.05) 19.21 (0.05)
G magnitude 18.65 (0.01) 18.68 18.65 18.65 (0.003)
BP magnitude 18.60 (0.01) 18.53
RP magnitude 18.76 (0.05) 18.70
Pan g magnitude 18.55 (0.007)
Pan r magnitude 18.82 (0.008)
Pan i magnitude 19.08 (0.01)
Pan z magnitude 19.29 (0.01)
Pan y magnitude 19.42 (0.04)
E(B-V) 0.021

* 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.