[VV2010] J084201.4+153942

All names: [VV2010] J084201.4+153942, SDSS J084201.42+153941.9, GALEX J084201.4+153942, Gaia DR2 657714730316051712, SDSS J084201.41+153941.8, Gaia DR3 657714730316051712, Gaia EDR3 657714730316051712

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 42 01.41 (0.4) 08 42 01.42 08 42 01.41 (0.6) 08 42 01.41 (0.4) 08 42 01.42
Declination 15 39 41.91 (0.2) 15 39 41.88 15 39 41.91 (0.3) 15 39 41.91 (0.2) 15 39 41.89
Spectral type DAH DAH DAH DAH DAH
Effective temperature [K] 17262.9 (296) 14628.0 22510.0 (794)
log(g) [cgs] 7.94 (0.2) 7.75 10.00 (0.01)
Mass [M] 0.582009824927716 (0.2) 0.481
log(Luminosity) [L]
Cooling age [Gyr] 0.1451
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] 2.47 (0.5) 1.80 (0.7) 2.47 (0.5)
Distance [pc] 404.26 (77) 555.94 (203) 404.27 (77)
Composition H
Proper motion (right ascension) [mas/yr] -2.519731029 (0.5) -4.180918773 (1) -2.52 (0.5)
Proper motion (declination) [mas/yr] 0.05478119 (0.3) 0.202070246 (0.6) 0.055 (0.3)
Variability
Magnetic yes
Bd [MG] 19.65633566754888
Infrared excess (disk)
Binarity
B magnitude 20.13
V magnitude 20.15
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.85 (0.03) 19.85 (0.03) 19.86 (0.03)
g magnitude 19.72 (0.01) 19.71 (0.01) 19.73 (0.02)
r magnitude 19.97 (0.02) 19.97 (0.02) 19.98 (0.03)
i magnitude 20.17 (0.03) 20.16 (0.03) 20.17 (0.03)
z magnitude 20.46 (0.1) 20.46 (0.1) 20.48 (0.1)
G magnitude 19.85 (0.04) 19.90 19.85 (0.005)
BP magnitude 19.83 (0.04) 19.77
RP magnitude 20.05 (0.07) 19.93
Pan g magnitude 19.72 (0.02)
Pan r magnitude 20.01 (0.01)
Pan i magnitude 20.25 (0.03)
Pan z magnitude 20.44 (0.03)
Pan y magnitude
E(B-V) 0.026

* 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.