SDSS J031708.43+402450.2

All names: Gaia EDR3 239257170475611776, Gaia DR2 239257170475611776, SDSS J031708.43+402450.1, Gaia DR3 239257170475611776, SDSS J031708.43+402450.2

Parameter Unit Gaia EDR3 Pan-STARRS DR1 MWDD H Gaia DR2 Stilism Vincent et al. 2024 Simbad Kleinman et al. 2013 Vincent et al. 2023
Right ascension 03 17 08.48 (0.2) 03 17 08.48 (0.3) 03 17 08.48 03 17 08.41 (0.2) 03 17 08.43
Declination 40 24 49.73 (0.2) 40 24 49.75 (0.2) 40 24 49.73 40 24 50.48 (0.2) 40 24 50.19
Spectral type DA DA DA DA DA
Effective temperature [K] 6730.0 7130.0 (226) 7058.0 (49)
log(g) [cgs] 8.13 8.16 (0.07) 7.49 (0.1)
Mass [M] 0.673 0.692 (0.06) 0.377 (0.05)
log(Luminosity) [L]
Cooling age [Gyr] 2.1380
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] 7.80 (0.3) 8.26 (0.4) 7.80 7.80 (0.3)
Distance [pc] 128.14 (5) 121.00 (6) 128.14 128.14 (5)
Composition H
Proper motion (right ascension) [mas/yr] 53.58413675 (0.4) 53.24631384 (0.8) 53.584 (0.4)
Proper motion (declination) [mas/yr] -46.47430324 (0.3) -46.32874964 (0.5) -46.474 (0.3)
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude
H magnitude
K magnitude
u magnitude 19.87 (0.04) 19.87 (0.04)
g magnitude 19.36 (0.01) 19.36 (0.01)
r magnitude 19.16 (0.01) 19.16 (0.01)
i magnitude 19.10 (0.02) 19.10 (0.02)
z magnitude 19.17 (0.05) 19.17 (0.05)
G magnitude 19.13 (0.03) 19.16 19.13 19.13 (0.004)
BP magnitude 19.39 (0.03) 19.37
RP magnitude 18.85 (0.04) 18.80
Pan g magnitude 19.41 (0.02)
Pan r magnitude 19.18 (0.009)
Pan i magnitude 19.12 (0.01)
Pan z magnitude 19.17 (0.008)
Pan y magnitude 19.28 (0.05)
E(B-V) 0.033

* 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.