All names: Gaia EDR3 2675091174536113792, Gaia DR2 2675091174536113792, WDJ214215.41-003636.17, J2142-0036, SDSS J214215.41-003636.1, 2SLAQ J214215.41-003636.0, GALEX J214215.4-003635, Gaia DR3 2675091174536113792, WD 2139-008, SDSS J214215.42-003636.0, SDSS J214215.41-003636.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 42 15.50 (0.1) | 21 42 15.42 | 21 42 15.49 (0.2) | 21 42 15.50 | 21 42 15.41 (0.1) | 21 42 15.49 | 21 42 15.41 | 21 42 15.26 | 21 42 15.41 | |||||
| Declination | -00 36 35.44 (0.1) | -00 36 36.03 | -00 36 35.47 (0.3) | -00 36 35.44 | -00 36 36.17 (0.1) | -00 36 35.47 | -00 36 36.07 | -00 36 34.56 | -00 36 36.09 | |||||
| Spectral type | DC | DC | DC+M | DC | DC | DCM: | DC:+MS | |||||||
| Effective temperature | [K] | 6689.0 (38) | 6252.0 (124) | 6540.0 (47) | 6301.0 (6) | |||||||||
| log(g) | [cgs] | 8.18 (0.02) | 8.09 (0.03) | 8.99 (0.02) | 10.00 (0.003) | |||||||||
| Mass | [M☉] | 0.687 (0.02) | 0.63 (0.03) | |||||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 2.5800 | ||||||||||||
| log(H/He) | -3.2 | |||||||||||||
| 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] | 12.62 (0.2) | 12.72 (0.3) | 12.72 (0.3) | 12.62 | 12.62 (0.2) | 12.72 (0.3) | |||||||
| Distance | [pc] | 79.26 (1) | 78.62 (2) | 78.59 (2) | 79.26 | 79.26 (1) | 78.59 (2) | |||||||
| Composition | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 80.53713459 (0.2) | 80.52005165 (0.4) | 80.537 (0.2) | 80.52005165 | 78.5 | ||||||||
| Proper motion (declination) | [mas/yr] | 45.55312846 (0.2) | 45.6197442 (0.4) | 45.553 (0.2) | 45.6197442 | 48.4 | ||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | WDMS | |||||||||||||
| B magnitude | ||||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | ||||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 17.92 (0.05) | |||||||||||||
| H magnitude | 17.84 (0.1) | |||||||||||||
| K magnitude | 17.79 (0.2) | |||||||||||||
| u magnitude | 19.10 (0.02) | 19.13 (0.02) | 19.10 (0.02) | 19.12 (0.02) | 19.22 (0.03) | 19.21 | 19.19 (0.03) | |||||||
| g magnitude | 18.61 (0.008) | 18.61 (0.008) | 18.63 (0.008) | 18.67 (0.01) | 18.66 | 18.66 (0.01) | ||||||||
| r magnitude | 18.44 (0.009) | 18.44 (0.009) | 18.43 (0.008) | 18.44 (0.01) | 18.43 | 18.43 (0.01) | ||||||||
| i magnitude | 18.38 (0.01) | 18.38 (0.01) | 18.40 (0.01) | 18.41 (0.01) | 18.40 | 18.39 (0.02) | ||||||||
| z magnitude | 18.43 (0.03) | 18.43 (0.03) | 18.43 (0.03) | 18.49 (0.03) | 18.48 | 18.46 (0.03) | ||||||||
| G magnitude | 18.42 (0.01) | 18.44 | 18.42 | 18.42 (0.003) | 18.44 | |||||||||
| BP magnitude | 18.65 (0.01) | 18.66 | 18.66 | |||||||||||
| RP magnitude | 18.10 (0.01) | 18.10 | 18.10 | |||||||||||
| Pan g magnitude | 18.62 (0.004) | 18.62 (0.004) | ||||||||||||
| Pan r magnitude | 18.44 (0.005) | 18.44 (0.005) | ||||||||||||
| Pan i magnitude | 18.42 (0.007) | 18.42 (0.007) | ||||||||||||
| Pan z magnitude | 18.46 (0.007) | 18.46 (0.007) | ||||||||||||
| Pan y magnitude | 18.53 (0.01) | 18.53 (0.01) | ||||||||||||
| E(B-V) | 0.003 | |||||||||||||
* 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.