All names: 2MASS J21124063-2922177, EC 21096-2934, WDJ211240.64-292217.96, Gaia DR2 6788656957673130112, WD 2109-295, 211240.64-292217.96, UCAC4 304-267983, Gaia EDR3 6788656957673130112, J2112-2922, Gaia DR3 6788656957673130112, TIC 289934729, MCT 2109-2934
Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | O'Brien et al. 2022 | Bergeron et al. 2021 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
Right ascension | 21 12 40.73 (0.03) | 21 12 40.73 | 21 12 40.73 | 21 12 40.64 (0.03) | 21 12 40.73 | |||||||||
Declination | -29 22 20.35 (0.03) | -29 22 20.28 | -29 22 20.35 | -29 22 17.96 (0.03) | -29 22 20.28 | |||||||||
Spectral type | DZQ | DC | DZQ | DC | DC | DC | ||||||||
Effective temperature | [K] | 9773.0 (102) | 9524.0 (37) | 9770.0 (110) | 9259.0 (40) | 9943.0 | 9855.0 | 9629.0 (60) | ||||||
log(g) | [cgs] | 8.22 (0.02) | 8.03 (0.007) | 8.11 (0.03) | 7.98 (0.007) | 8.25 | 8.18 | 8.08 (0.01) | ||||||
Mass | [M☉] | 0.716 (0.01) | 0.599 (0.006) | 0.567 (0.004) | 0.754 | 0.689 | 0.627 (0.009) | |||||||
log(Luminosity) | [L☉] | |||||||||||||
Cooling age | [Gyr] | 0.7800 | 0.7800 | 0.8822 | 0.8430 | |||||||||
log(H/He) | -4.4 | -4.4 | ||||||||||||
log(C/He) | ||||||||||||||
log(Ca/He) | ||||||||||||||
log(Ca/H) | ||||||||||||||
log(N/He) | ||||||||||||||
log(O/He) | ||||||||||||||
log(Na/He) | ||||||||||||||
log(Mg/He) | ||||||||||||||
log(Al/He) | ||||||||||||||
log(Si/He) | ||||||||||||||
log(P/He) | ||||||||||||||
log(S/He) | ||||||||||||||
log(Cl/He) | ||||||||||||||
log(Sc/He) | ||||||||||||||
log(Ti/He) | ||||||||||||||
log(V/He) | ||||||||||||||
log(Cr/He) | ||||||||||||||
log(Mn/He) | ||||||||||||||
log(Fe/He) | ||||||||||||||
log(Co/He) | ||||||||||||||
log(Ni/He) | ||||||||||||||
log(Cu/He) | ||||||||||||||
log(Zn/He) | ||||||||||||||
log(Ga/He) | ||||||||||||||
log(Ge/He) | ||||||||||||||
log(Sr/He) | ||||||||||||||
Parallax | [mas] | 30.49 (0.04) | 30.49 (0.04) | 30.43 (0.07) | 30.49 (0.04) | 30.43 (0.07) | 30.49 | 30.49 (0.04) | 30.43 (0.07) | |||||
Distance | [pc] | 32.79 (0.05) | 32.80 (0.04) | 32.86 (0.08) | 32.80 (0.04) | 32.00 | 32.86 (0.08) | 32.79 | 32.79 (0.05) | 32.86 (0.08) | ||||
Composition | He | He | ||||||||||||
Proper motion (right ascension) | [mas/yr] | 75.31640695 (0.04) | 75.46794687 (0.09) | 75.316 (0.04) | 75.46794687 | |||||||||
Proper motion (declination) | [mas/yr] | -149.5793095 (0.04) | -149.4113129 (0.07) | -149.579 (0.04) | -149.4113129 | |||||||||
Variability | ||||||||||||||
Magnetic | ||||||||||||||
Bd | [MG] | |||||||||||||
Infrared excess (disk) | ||||||||||||||
Binarity | ||||||||||||||
B magnitude | 15.30 | |||||||||||||
V magnitude | 15.21 | |||||||||||||
R magnitude | 15.41 (0.07) | |||||||||||||
I magnitude | ||||||||||||||
J magnitude | 15.14 (0.04) | 15.14 (0.04) | ||||||||||||
H magnitude | 14.96 (0.07) | 14.96 (0.07) | ||||||||||||
K magnitude | 15.23 (0.2) | 15.23 (0.2) | ||||||||||||
u magnitude | ||||||||||||||
g magnitude | ||||||||||||||
r magnitude | ||||||||||||||
i magnitude | ||||||||||||||
z magnitude | ||||||||||||||
G magnitude | 15.12 (0.002) | 15.14 | 15.12 | 15.12 (0.003) | 15.14 | |||||||||
BP magnitude | 15.15 (0.002) | 15.13 | 15.13 | |||||||||||
RP magnitude | 15.04 (0.001) | 15.04 | 15.04 | |||||||||||
Pan g magnitude | 15.16 (0.002) | 15.16 (0.002) | ||||||||||||
Pan r magnitude | 15.23 (0.004) | 15.23 (0.005) | ||||||||||||
Pan i magnitude | 15.37 (0.002) | 15.37 (0.002) | ||||||||||||
Pan z magnitude | 15.53 (0.003) | 15.53 (0.003) | ||||||||||||
Pan y magnitude | 15.64 (0.005) | 15.64 (0.005) | ||||||||||||
E(B-V) | 0.001 |
* 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.