All names: SDSS J211205.31+101428.0, SDSS J211205.31+101427.9, Gaia EDR3 1744641455375760256, [HHD2009] SDSS J2112+1014, [SGR2010] J2112+1014, 2MASS J21120531+1014279, SDSS J211205.32+101428.0, TIC 321838700, USNO-B1.0 1002-00585614, SBC9 3399, WD 2109+100, WIRED J211205.31+101427.9, Gaia DR3 1744641455375760256, Gaia DR2 1744641455375760256
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 12 05.31 (0.1) | 21 12 05.31 | 21 12 05.31 (0.2) | 21 12 05.31 | 21 12 05.31 (0.1) | 21 12 05.32 | 21 12 04.75 | 21 12 05.31 | |||||
| Declination | 10 14 27.51 (0.1) | 10 14 28.04 | 10 14 27.52 (0.2) | 10 14 27.89 | 10 14 28.04 (0.1) | 10 14 28.02 | 10 14 27.60 | 10 14 27.99 | |||||
| Spectral type | DA+M | DA | DA+dMe | DA+M | DA dM | DA+M | DA+MS | ||||||
| Effective temperature | [K] | 19868.0 (489) | 11800.0 (250) | 10590.0 (71) | 10755.0 (83) | ||||||||
| log(g) | [cgs] | 8.73 (0.1) | 8.54 (0.08) | 9.00 (0.007) | 9.17 (0.06) | ||||||||
| Mass | [M☉] | 1.06 (0.05) | 0.95 (0.05) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.9772 | |||||||||||
| 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] | 4.48 (0.1) | 4.59 (0.3) | 4.48 (0.1) | |||||||||
| Distance | [pc] | 223.40 (7) | 217.76 (12) | 334.00 (56) | 223.40 (7) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -3.860730827 (0.2) | -3.659925826 (0.3) | -3.861 (0.2) | -2.8 | ||||||||
| Proper motion (declination) | [mas/yr] | -33.38288771 (0.1) | -33.38717327 (0.3) | -33.383 (0.1) | -28.1 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | WDMS | |||||||||
| B magnitude | 17.20 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 17.80 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.84 (0.1) | ||||||||||||
| H magnitude | 15.30 (0.1) | ||||||||||||
| K magnitude | 14.74 (0.1) | ||||||||||||
| u magnitude | 18.71 (0.02) | 18.69 | 18.70 (0.02) | 18.69 (0.02) | 18.69 | 18.68 (0.02) | |||||||
| g magnitude | 18.39 (0.007) | 18.39 | 18.37 (0.007) | 18.39 (0.01) | 18.39 | 18.38 (0.01) | |||||||
| r magnitude | 18.44 (0.009) | 18.43 | 18.42 (0.009) | 18.43 (0.01) | 18.43 | 18.42 (0.01) | |||||||
| i magnitude | 18.07 (0.009) | 18.06 | 18.06 (0.009) | 18.06 (0.01) | 18.06 | 18.05 (0.01) | |||||||
| z magnitude | 17.35 (0.02) | 17.35 | 17.35 (0.02) | 17.35 (0.02) | 17.35 | 17.35 (0.02) | |||||||
| G magnitude | 18.14 (0.02) | 18.15 | 18.14 (0.003) | ||||||||||
| BP magnitude | 18.45 (0.02) | 18.45 | |||||||||||
| RP magnitude | 17.51 (0.01) | 17.50 | |||||||||||
| Pan g magnitude | 18.39 (0.007) | ||||||||||||
| Pan r magnitude | 18.45 (0.01) | ||||||||||||
| Pan i magnitude | 18.06 (0.01) | ||||||||||||
| Pan z magnitude | 17.44 (0.01) | ||||||||||||
| Pan y magnitude | 17.05 (0.02) | ||||||||||||
| E(B-V) | 0.033 | ||||||||||||
* 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.