SDSS J173117.84+312302.0

All names: SDSS J173117.83+312301.9, Gaia DR2 4600052395132294528, SDSS J173117.83+312302.0, Gaia EDR3 4600052395132294528, SDSS J173117.84+312302.0, Gaia DR3 4600052395132294528, SDSS J173117.84+312302.04, GALEX J173117.8+312302

Parameter Unit Gaia EDR3 Pan-STARRS DR1 SDSS DR10 MWDD H Gaia DR2 Stilism Kepler et al. 2015 Vincent et al. 2024 Simbad Vincent et al. 2023
Right ascension 17 31 17.84 (0.1) 17 31 17.84 17 31 17.84 (0.2) 17 31 17.84 17 31 17.83 (0.1)
Declination 31 23 02.18 (0.1) 31 23 02.02 31 23 02.17 (0.2) 31 23 02.18 31 23 02.03 (0.1)
Spectral type DA DA DA DA DA
Effective temperature [K] 16471.0 18179.0 (133) 19784.0 (1419)
log(g) [cgs] 8.11 8.03 (0.03) 8.11 (0.09)
Mass [M] 0.681 0.634 (0.01) 0.687 (0.07)
log(Luminosity) [L]
Cooling age [Gyr] 0.1765
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] 2.63 (0.2) 2.96 (0.2) 2.63 2.63 (0.2)
Distance [pc] 380.63 (23) 337.31 (24) 380.63 380.63 (23)
Composition H
Proper motion (right ascension) [mas/yr] 7.020900792 (0.2) 6.936860902 (0.4) 7.021 (0.2)
Proper motion (declination) [mas/yr] 9.36297084 (0.2) 9.309827991 (0.4) 9.363 (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 19.04 (0.02) 19.04 (0.03) 19.04 (0.02)
g magnitude 18.80 (0.009) 18.82 (0.02) 18.80 (0.009)
r magnitude 19.14 (0.01) 19.13 (0.03) 19.14 (0.01)
i magnitude 19.40 (0.02) 19.40 (0.02) 19.41 (0.02)
z magnitude 19.59 (0.06) 19.60 (0.06) 19.59 (0.06)
G magnitude 18.95 (0.01) 18.99 18.95 18.95 (0.003)
BP magnitude 18.89 (0.01) 18.90
RP magnitude 19.11 (0.03) 19.09
Pan g magnitude 18.81 (0.007)
Pan r magnitude 19.11 (0.007)
Pan i magnitude 19.39 (0.01)
Pan z magnitude 19.65 (0.03)
Pan y magnitude 19.75 (0.1)
E(B-V) 0.024

* 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.