Gaia DR2 4068499305485306240

All names: J1749-2355, Gaia DR2 4068499305485306240, UCAC4 331-122279, Gaia DR3 4068499305485306240, WDJ174935.61-235500.63, Gaia EDR3 4068499305485306240

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 Blouin & Xu 2022 Tremblay et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 17 49 35.72 (0.03) 17 49 35.72 17 49 35.72 17 49 35.61 (0.03) 17 49 35.72
Declination -23 55 02.68 (0.02) -23 55 02.62 -23 55 02.68 -23 55 00.63 (0.02) -23 55 02.62
Spectral type DAZ DAZ DAZ DA DAZ
Effective temperature [K] 7255.0 (51) 7505.0 (37) 7425.0 (63) 7000.0 (50) 7354.0 7081.0 7277.0 (23)
log(g) [cgs] 7.96 (0.02) 8.08 (0.008) 8.06 (0.02) 7.87 (0.02) 8.04 7.92 7.96 (0.006)
Mass [M] 0.568 (0.01) 0.623 (0.007) 0.63 (0.01) 0.615 0.531 0.571 (0.005)
log(Luminosity) [L]
Cooling age [Gyr] 1.5200 1.4800 1.4060 1.3680
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) -8.5 -9.34 (0.09)
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] 37.59 (0.03) 37.59 (0.03) 37.54 (0.04) 37.59 (0.03) 37.54 (0.04) 37.59 37.59 (0.03) 37.54 (0.04)
Distance [pc] 26.60 (0.02) 26.60 (0.02) 26.64 (0.03) 26.60 (0.02) 26.64 (0.03) 26.60 26.60 (0.02) 26.64 (0.03)
Composition H
Proper motion (right ascension) [mas/yr] 98.22864064 (0.04) 98.23275287 (0.08) 98.229 (0.04) 98.23275287
Proper motion (declination) [mas/yr] -128.106996 (0.02) -128.0788761 (0.06) -128.107 (0.02) -128.0788761
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.83 (0.01)
V magnitude 15.42 (0.08)
R magnitude 15.62 (0.1)
I magnitude
J magnitude 14.97 (0.02)
H magnitude 15.47 (0.07)
K magnitude 14.62 (0.04)
u magnitude
g magnitude 15.59 (0.03)
r magnitude 15.31 (0.05)
i magnitude
z magnitude
G magnitude 15.36 (0.0004) 15.38 15.36 15.36 (0.003) 15.38
BP magnitude 15.53 (0.001) 15.52 15.52
RP magnitude 15.06 (0.001) 15.03 15.03
Pan g magnitude 15.58 (0.005) 15.58 (0.005) 15.58 (0.005)
Pan r magnitude 15.48 (0.003) 15.48 (0.003) 15.48 (0.003)
Pan i magnitude 15.45 (0.01) 15.45 (0.01) 15.45 (0.01)
Pan z magnitude 15.52 (0.002) 15.52 (0.002) 15.52 (0.002)
Pan y magnitude 15.56 (0.01) 15.56 (0.01) 15.56 (0.01)
E(B-V) 0.001

* 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.