Gaia DR2 4490607183799536896

All names: Gaia DR3 4490607183799536896, WDJ172355.17+090525.58, SDSS J172355.14+090525.5, Gaia DR2 4490607183799536896, SDSS J172355.15+090525.5, Gaia EDR3 4490607183799536896, J1723+0905, GALEX J172355.1+090525

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Caron et al. 2023 Kilic et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 17 23 55.11 (0.07) 17 23 55.11 17 23 55.11 17 23 55.17 (0.07) 17 23 55.11
Declination 09 05 25.52 (0.06) 09 05 25.53 09 05 25.52 09 05 25.58 (0.06) 09 05 25.53
Spectral type DA DA DA DA DA
Effective temperature [K] 6860.0 (26) 6900.0 (25) 6860.0 (26) 6856.0 6618.0 6801.0 (70)
log(g) [cgs] 7.49 (0.01) 7.51 (0.01) 7.49 (0.01) 7.49 7.36 7.46 (0.03)
Mass [M] 0.339 (0.007) 0.346 (0.009) 0.338 (0.008) 0.337 0.272 0.327 (0.01)
log(Luminosity) [L]
Cooling age [Gyr] 0.9200 0.8947 0.9249
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] 10.88 (0.1) 10.87 (0.1) 10.87 (0.1) 10.88 10.88 (0.1) 10.87 (0.1)
Distance [pc] 91.94 (0.8) 92.00 (1) 91.97 (1) 91.94 91.94 (0.8) 91.97 (1)
Composition H H
Proper motion (right ascension) [mas/yr] -54.3741925 (0.09) -54.38326035 (0.2) -54.374 (0.09) -54.38326035
Proper motion (declination) [mas/yr] -3.66717723 (0.08) -3.785241459 (0.2) -3.667 (0.08) -3.785241459
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.98 (0.03)
H magnitude
K magnitude
u magnitude 18.46 (0.02) 18.46 (0.02) 18.46 (0.02)
g magnitude 17.87 (0.006) 17.87 (0.006)
r magnitude 17.69 (0.006) 17.69 (0.006)
i magnitude 17.76 (0.007) 17.76 (0.007)
z magnitude 17.66 (0.02) 17.66 (0.02)
G magnitude 17.65 (0.009) 17.67 17.65 17.65 (0.003) 17.67
BP magnitude 17.86 (0.009) 17.87 17.87
RP magnitude 17.31 (0.01) 17.31 17.31
Pan g magnitude 17.86 (0.003) 17.86 (0.003)
Pan r magnitude 17.69 (0.003) 17.69 (0.003)
Pan i magnitude 17.64 (0.003) 17.64 (0.003)
Pan z magnitude 17.68 (0.007) 17.68 (0.006)
Pan y magnitude 17.71 (0.01) 17.71 (0.01)
E(B-V) 0.018

* 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.