SDSS J083918.12+212143.8

All names: SDSS J083918.11+212143.7, SDSS J083918.12+212143.8, Gaia DR3 664751982690734592, Gaia DR2 664751982690734592, Gaia EDR3 664751982690734592, SDSS J083918.12+212143.7

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR12 Hardy et al. 2023a MWDD H Gaia DR2 Stilism Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 08 39 18.11 (0.5) 08 39 18.12 08 39 18.11 (0.7) 08 39 18.13 (0.5) 08 39 18.12
Declination 21 21 43.74 (0.3) 21 21 43.71 21 21 43.74 (0.4) 21 21 43.77 (0.3) 21 21 43.79
Spectral type DA DAH DAH DAH DA
Effective temperature [K] 10179.0 (189) 9461.0 10813.0 (394)
log(g) [cgs] 8.45 (0.2) 8.32 9.82 (0.2)
Mass [M] 0.8850127348754872 (0.3) 0.799
log(Luminosity) [L]
Cooling age [Gyr] 1.1260
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H)
log(C/H)
log(N/H)
log(O/H)
log(Na/H)
log(Mg/H)
log(Al/H)
log(Si/H)
log(P/H)
log(S/H)
log(Sc/H)
log(Ti/H)
log(Cr/H)
log(Mn/H)
log(Fe/H)
log(Ni/H)
Parallax [mas] 5.41 (0.6) 3.66 (1) 5.41 (0.6)
Distance [pc] 184.80 (21) 272.94 (71) 184.80 (21)
Composition H
Proper motion (right ascension) [mas/yr] -14.92397355 (0.7) -17.31012502 (1) -14.924 (0.7)
Proper motion (declination) [mas/yr] -1.67834188 (0.4) 0.103471233 (0.7) -1.678 (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 20.35 (0.05) 20.35 (0.05) 20.34 (0.05)
g magnitude 20.04 (0.02) 20.04 (0.02) 20.10 (0.02)
r magnitude 20.12 (0.02) 20.12 (0.03) 20.12 (0.03)
i magnitude 20.18 (0.04) 20.18 (0.04) 20.24 (0.04)
z magnitude 20.39 (0.1) 20.39 (0.1) 20.38 (0.1)
G magnitude 20.02 (0.06) 20.08 20.02 (0.006)
BP magnitude 20.09 (0.06) 19.95
RP magnitude 19.57 (0.09) 19.75
Pan g magnitude 20.06 (0.01)
Pan r magnitude 20.10 (0.009)
Pan i magnitude 20.16 (0.04)
Pan z magnitude 20.39 (0.03)
Pan y magnitude 20.01 (0.2)
E(B-V) 0.008

* 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.