All names: 2MASS J21223489+0542395, SDSS J212234.87+054238.6, Gaia EDR3 1738521539295354240, SDSS J212234.87+054239.0, USNO-B1.0 0957-00561835, PG 2120+055, SDSS J212234.87+054238.63, GALEX J212234.8+054239, TIC 269920035, Gaia DR2 1738521539295354240, WD 2120+054, SDSS J212234.87+054238.7, SDSS J212234.88+054239.0, Gaia DR3 1738521539295354240
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | SDSS DR12 | Bedard et al. 2020 | MWDD H | Gaia DR2 | Stilism | Kepler et al. 2015 | Gianninas et al. 2011 | Koester et al. 2009 | Koester et al. 2005 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 21 22 34.87 (0.05) | 21 22 34.88 | 21 22 34.88 | 21 22 34.87 (0.08) | 21 22 34.87 | 21 22 34.88 (0.05) | 21 22 34.58 | ||||||||||
Declination | 05 42 38.10 (0.06) | 05 42 39.06 | 05 42 39.06 | 05 42 38.15 (0.1) | 05 42 38.10 | 05 42 39.61 (0.06) | 05 42 33.48 | ||||||||||
Spectral type | DA | DA | DA | DA | DA | DA | DA1.4 | DA | DA | ||||||||
Effective temperature | [K] | 36220.0 (145) | 19080.0 | 37536.0 (97) | 36220.0 (549) | 35559.0 (79) | 35200.0 | 26988.0 (402) | |||||||||
log(g) | [cgs] | 7.69 (0.02) | 7.17 | 7.99 (0.02) | 7.86 (0.05) | 7.68 (0.01) | 7.80 | 7.58 (0.02) | |||||||||
Mass | [M☉] | 0.51 (0.01) | 0.297 | 0.652 (0.009) | 0.6 (0.02) | 0.445 (0.01) | |||||||||||
log(Luminosity) | [L☉] | -0.35 (0.02) | |||||||||||||||
Cooling age | [Gyr] | 0.0045 (0.0001) | 0.0540 | ||||||||||||||
log(H/He) | |||||||||||||||||
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] | 4.86 (0.06) | 4.83 (0.1) | 4.86 | 4.86 (0.06) | ||||||||||||
Distance | [pc] | 205.84 (3) | 207.12 (4) | 252.00 | 205.84 | 205.84 (3) | |||||||||||
Composition | H | H | H | H | |||||||||||||
Proper motion (right ascension) | [mas/yr] | -13.23386016 (0.06) | -13.21775528 (0.1) | -13.234 (0.06) | |||||||||||||
Proper motion (declination) | [mas/yr] | -94.51640661 (0.06) | -94.64757865 (0.2) | -94.516 (0.06) | |||||||||||||
Variability | |||||||||||||||||
Magnetic | |||||||||||||||||
Bd | [MG] | ||||||||||||||||
Infrared excess (disk) | |||||||||||||||||
Binarity | |||||||||||||||||
B magnitude | 16.23 | ||||||||||||||||
V magnitude | 16.38 | 16.38 | |||||||||||||||
R magnitude | 16.40 | ||||||||||||||||
I magnitude | |||||||||||||||||
J magnitude | 16.73 (0.1) | ||||||||||||||||
H magnitude | 16.43 (0.2) | ||||||||||||||||
K magnitude | |||||||||||||||||
u magnitude | 15.70 (0.005) | 15.70 (0.005) | 15.72 (0.02) | 15.70 (0.005) | |||||||||||||
g magnitude | 15.94 (0.003) | 15.94 (0.003) | 15.96 (0.02) | 15.94 (0.003) | |||||||||||||
r magnitude | 16.36 (0.004) | 16.36 (0.004) | 16.36 (0.01) | 16.36 (0.004) | |||||||||||||
i magnitude | 16.66 (0.005) | 16.66 (0.005) | 16.66 (0.01) | 16.66 (0.005) | |||||||||||||
z magnitude | 16.94 (0.01) | 16.94 (0.01) | 16.94 (0.02) | 16.94 (0.01) | |||||||||||||
G magnitude | 16.15 (0.002) | 16.18 | 16.15 | 16.15 (0.003) | |||||||||||||
BP magnitude | 16.04 (0.002) | 15.99 | |||||||||||||||
RP magnitude | 16.37 (0.005) | 16.37 | |||||||||||||||
Pan g magnitude | 16.02 (0.004) | ||||||||||||||||
Pan r magnitude | 16.38 (0.002) | ||||||||||||||||
Pan i magnitude | 16.69 (0.002) | ||||||||||||||||
Pan z magnitude | 16.94 (0.003) | ||||||||||||||||
Pan y magnitude | 17.12 (0.006) | ||||||||||||||||
E(B-V) | 0.024 |
* 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.