Gaia DR2 4496751667093478016

All names: TIC 149017162, WISE J180218.59+135406.5, J1802+1354, WDJ180218.60+135405.46, GALEX J180218.5+135405, WISEA J180218.58+135406.4, 2MASS J18021860+1354055, UCAC4 520-069864, Gaia DR3 4496751667093478016, WDJ180218.6+135405.46, Gaia DR2 4496751667093478016, Gaia EDR3 4496751667093478016

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Caron et al. 2023 Tremblay et al. 2020 MWDD H MWDD HE Gaia DR2 Stilism Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 18 02 18.55 (0.03) 18 02 18.55 18 02 18.55 18 02 18.60 (0.03) 18 02 18.55
Declination 13 54 06.52 (0.03) 13 54 06.49 13 54 06.52 13 54 05.46 (0.03) 13 54 06.49
Spectral type DAZ DAZ DA DAZ
Effective temperature [K] 8055.0 (36) 8310.0 (110) 8219.0 7949.0 8361.0 (44)
log(g) [cgs] 8.02 (0.007) 8.09 (0.04) 8.08 7.99 8.11 (0.009)
Mass [M] 0.588 (0.007) 0.643 0.568 0.662 (0.008)
log(Luminosity) [L]
Cooling age [Gyr] 1.1800 1.1220 1.1120
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) -8.1
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] 25.00 (0.04) 24.97 (0.07) 24.97 (0.07) 25.00 25.00 (0.04) 24.97 (0.07)
Distance [pc] 40.01 (0.06) 40.05 (0.1) 40.05 (0.1) 40.01 40.01 (0.06) 40.05 (0.1)
Composition H
Proper motion (right ascension) [mas/yr] -45.75918945 (0.03) -45.68506846 (0.1) -45.759 (0.03) -45.68506846
Proper motion (declination) [mas/yr] 66.45946835 (0.03) 66.28758684 (0.1) 66.459 (0.03) 66.28758684
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 16.20 (0.08)
V magnitude 15.98 (0.01)
R magnitude 16.42 (0.2)
I magnitude
J magnitude 15.49 (0.05) 15.49 (0.05)
H magnitude 15.36 (0.1) 15.36 (0.1)
K magnitude 15.29 (0.2) 15.29 (0.2)
u magnitude
g magnitude 16.04 (0.01)
r magnitude
i magnitude
z magnitude
G magnitude 15.98 (0.003) 15.99 15.98 15.98 (0.003) 15.99
BP magnitude 16.08 (0.003) 16.07 16.07
RP magnitude 15.74 (0.003) 15.74 15.74
Pan g magnitude 16.07 (0.004) 16.07 (0.004)
Pan r magnitude 16.03 (0.003) 16.03 (0.002)
Pan i magnitude 16.09 (0.002) 16.09 (0.002)
Pan z magnitude 16.18 (0.004) 16.18 (0.004)
Pan y magnitude 16.23 (0.004) 16.23 (0.005)
E(B-V) 0.002

* 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.