SDSS J082216.14+133822.6

All names: SDSS J082216.14+133822.6, Gaia EDR3 651932025005986688, Gaia DR3 651932025005986688, GALEX J082216.1+133822, SDSS J082216.13+133822.6, Gaia DR2 651932025005986688, SDSS J082216.14+133822.5, SDSS J082216.14+133822.60

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 22 16.13 (0.2) 08 22 16.14 08 22 16.13 (0.2) 08 22 16.13 08 22 16.15 (0.2) 08 22 16.14
Declination 13 38 22.50 (0.1) 13 38 22.62 13 38 22.51 (0.1) 13 38 22.50 13 38 22.71 (0.1) 13 38 22.61
Spectral type DBA DB DBA DBA DB
Effective temperature [K] 14547.0 14327.0 13239.0 14538.0 (82) 15316.0 (988) 14907.0 (181)
log(g) [cgs] 8.10 7.87 7.76 8.00 (0) 8.10 (0.09) 8.54 (0.1)
Mass [M] 0.648 0.517 0.459 0.652 (0.08)
log(Luminosity) [L]
Cooling age [Gyr] 0.2084
log(H/He) -4.312 -4.22 (0.2)
log(C/He)
log(Ca/He) <-7.89
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] 4.11 (0.2) 3.81 (0.2) 4.11 4.11 (0.2)
Distance [pc] 243.60 (10) 262.22 (17) 253.00 243.60 243.59 (10)
Composition He
Proper motion (right ascension) [mas/yr] -18.43210784 (0.2) -18.91815652 (0.4) -18.432 (0.2)
Proper motion (declination) [mas/yr] -12.66033301 (0.1) -12.71937632 (0.3) -12.66 (0.1)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 18.13 (0.02) 18.13 (0.01) 18.13 (0.02)
g magnitude 18.19 (0.007) 18.19 (0.007) 18.19 (0.02)
r magnitude 18.46 (0.009) 18.45 (0.009) 18.45 (0.01)
i magnitude 18.94 (0.01) 18.93 (0.01) 18.96 (0.02)
z magnitude 18.94 (0.05) 18.94 (0.05) 18.91 (0.05)
G magnitude 18.31 (0.02) 18.35 18.31 18.31 (0.003)
BP magnitude 18.29 (0.02) 18.23
RP magnitude 18.45 (0.03) 18.40
Pan g magnitude 18.24 (0.005)
Pan r magnitude 18.46 (0.007)
Pan i magnitude 18.70 (0.008)
Pan z magnitude 18.92 (0.02)
Pan y magnitude 19.01 (0.02)
E(B-V) 0.015

* 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.