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
Spectra without link are available upon request
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.