WD 2102+233

All names: 2MASS J21045273+2333216, Gaia DR3 1840865211187303424, WD 2102+233, WDJ210452.73+233321.42, GALEX J210452.7+233321, J2104+2333, Gaia EDR3 1840865211187303424, Gaia DR2 1840865211187303424, TIC 283903463, SDSS J210452.72+233320.5, SDSS J210452.71+233320.5

Parameter Unit Gaia EDR3 Pan-STARRS DR1 Kilic et al. 2025 Kilic et al. 2020 MWDD H Gaia DR2 Stilism Sayres et al. 2012 Vincent et al. 2024 Simbad Gentile Fusillo et al. 2018
Right ascension 21 04 52.69 (0.03) 21 04 52.69 (0.05) 21 04 52.74 21 04 52.69 21 04 52.73 (0.03) 21 04 52.69
Declination 23 33 19.25 (0.04) 23 33 19.32 (0.05) 23 33 21.70 23 33 19.25 23 33 21.41 (0.04) 23 33 19.32
Spectral type DA DA DA4.5 DA4.5 DA DA4.5
Effective temperature [K] 11469.0 (106) 11059.0 (107) 10800.0 12040.0 (80) 11249.0 (93)
log(g) [cgs] 8.03 (0.01) 7.93 (0.01) 7.96 8.36 (0.02) 8.01 (0.01)
Mass [M] 0.621 (0.009) 0.544 (0.01) 0.58 0.607 (0.008)
log(Luminosity) [L]
Cooling age [Gyr] 0.4688
log(H/He) -1
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] 14.78 (0.04) 14.90 (0.07) 14.78 14.78 (0.04) 14.90 (0.07)
Distance [pc] 67.64 (0.2) 67.10 (0.3) 64.50 67.64 67.64 (0.2) 67.10 (0.3)
Composition H H H
Proper motion (right ascension) [mas/yr] -38.48254691 (0.04) -38.4561974 (0.1) -38.483 (0.04) -38.4561974
Proper motion (declination) [mas/yr] -134.9503163 (0.04) -135.0861934 (0.1) -134.95 (0.04) -135.0861934
Variability
Magnetic
Bd [MG]
Infrared excess (disk)
Binarity
B magnitude
V magnitude
R magnitude
I magnitude
J magnitude 16.06 (0.07) 16.06 (0.07)
H magnitude 16.07 (0.2) 16.07 (0.2)
K magnitude 16.20
u magnitude 16.24 (0.006) 16.24 (0.006) 16.24 (0.006)
g magnitude 15.89 (0.003) 15.89 (0.003) 15.89 (0.003)
r magnitude (0.003) 16.04 (0.004) 16.04 (0.004)
i magnitude 16.15 (0.004) 16.15 (0.004) 16.15 (0.004)
z magnitude 16.44 (0.009) 16.44 (0.009) 16.44 (0.009)
G magnitude 15.98 (0.006) 16.00 15.98 15.98 (0.003) 16.00
BP magnitude 16.01 (0.006) 16.00 16.00
RP magnitude 15.97 (0.005) 15.96 15.96
Pan g magnitude 15.99 (0.006)
Pan r magnitude 16.09 (0.01)
Pan i magnitude 16.27 (0.009)
Pan z magnitude 16.48 (0.006)
Pan y magnitude 16.63 (0.01)
E(B-V) 0.006

* 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.