EGGR 302

All names: WDJ220947.10+142947.13, Gaia EDR3 2735175263041913088, PM J22097+1429, PG 2207+142, G 18-34, LTT 16482, GJ 4259, EGGR 302, WD 2207+14, USNO 359, NLTT 53093, GEN# +9.80018034, PSO J332.4471+14.4972, PLX 5360.01, WD 2207+142, G18-34, 22097+1429, LSPM J2209+1429, J2209+1429, 2MASS J22094710+1429470, USNO-B1.0 1044-00640983, Gaia DR3 2735175263041913088, Gaia DR2 2735175263041913088, TIC 456793980

Parameter Unit Gaia EDR3 Pan-STARRS DR1 O'Brien et al. 2024 Caron et al. 2023 McCleery et al. 2020 Blouin et al. 2019 MWDD H Gaia DR2 Bedard et al. 2017 Stilism Limoges et al. 2015 Gianninas et al. 2011 Koester et al. 2009 Liebert et al. 2005 Zuckerman et al. 2003 Bergeron et al. 2001 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018 White Dwarf Catalog (McCook & Sion 1999)
Right ascension 22 09 47.38 (0.03) 22 09 47.37 (0.04) 22 09 47.37 (0.04) 22 09 47.38 22 09 47.10 (0.03) 22 09 47.37 22 09 46.78
Declination 14 29 51.13 (0.03) 14 29 51.01 (0.04) 14 29 51.01 (0.04) 14 29 51.13 14 29 47.13 (0.03) 14 29 51.01 14 29 40.20
Spectral type DA DA DA DA DA DA DA DA DA DA DA6.6 DA6
Effective temperature [K] 7630.0 (74) 7591.0 (18) 7586.0 (39) 7475.0 (65) 7522.0 7567.0 (110) 7570.0 (110) 7580.0 (113) 7229.0 (20) 7620.0 (112) 7899.0 7620.0 (190) 7668.0 (41)
log(g) [cgs] 8.16 (0.02) 8.15 (0.004) 8.15 (0.01) 8.13 (0.02) 8.13 8.19 (0.06) 8.19 (0.06) 8.22 (0.07) 7.60 (0.03) 8.21 (0.07) 8.34 8.24 (0.2) 8.17 (0.009)
Mass [M] 0.692 (0.01) 0.686 (0.003) 0.671 (0.01) 0.676 0.66 (0.2) 0.71 (0.04) 0.73 (0.05) 0.73 (0.05) 0.75 (0.1) 0.699 (0.008)
log(Luminosity) [L] -3.43 -3.43 -3.45 (0.1)
Cooling age [Gyr] 1.6000 1.5290 (0.06) 1.5240 1.9055 1.8600 (0.6)
log(H/He)
log(C/He)
log(Ca/He)
log(Ca/H) <-10.901
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] 36.81 (0.03) 36.81 (0.03) 36.86 (0.05) 36.86 (0.05) 36.86 (0.04) 36.86 (0.05) 39.20 (4) 39.20 (4) 36.81 36.81 (0.03) 36.86 (0.05) 39.70 (4)
Distance [pc] 27.17 (0.02) 27.17 (0.02) 27.13 (0.04) 27.13 (0.03) 27.13 (0.03) 27.13 (0.03) 25.10 (3) 25.50 (3) 25.00 26.00 25.51 (3) 27.17 27.17 (0.02) 27.13 (0.03) 25.19 (3)
Composition H H H H H H H
Proper motion (right ascension) [mas/yr] 253.9490718 (0.03) 253.9391704 (0.08) 253.949 (0.03) 253.9391704
Proper motion (declination) [mas/yr] 250.2050357 (0.03) 250.2221065 (0.07) 250.205 (0.03) 250.2221065
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude 15.89 15.93
V magnitude 15.61 15.62 15.60
R magnitude 15.40 15.50
I magnitude 15.18
J magnitude 14.98 (0.005) 14.97 (0.04) 14.99 14.97 (0.04)
H magnitude 14.78 (0.09) 14.78 (0.09) 14.81 14.78 (0.09)
K magnitude 14.77 (0.1) 14.77 (0.1) 14.84 14.77 (0.1)
u magnitude 16.11 (0.006) 16.14 (0.006)
g magnitude 15.67 (0.002) 15.66 (0.004)
r magnitude 15.56 (0.002) 15.54 (0.004)
i magnitude 15.57 (0.001) 15.54 (0.004)
z magnitude 15.64 (0.003) 15.60 (0.006)
G magnitude 15.51 (0.003) 15.53 15.53 15.51 15.51 (0.003) 15.53
BP magnitude 15.66 (0.003) 15.67 15.67
RP magnitude 15.24 (0.003) 15.25 15.25
Pan g magnitude 15.67 (0.002) 15.67 (0.002) 15.67 (0.002)
Pan r magnitude 15.56 (0.003) 15.56 (0.002) 15.56 (0.002)
Pan i magnitude 15.57 (0.001) 15.57 (0.001) 15.57 (0.001)
Pan z magnitude 15.64 (0.003) 15.64 (0.003) 15.64 (0.003)
Pan y magnitude 15.69 (0.004) 15.69 (0.004) 15.69 (0.004)
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.