All names: Gaia EDR3 1545014807135001088, WD 1217+475, Gaia DR3 1545014807135001088, SDSS J121929.45+471522.8, USNO-B1.0 1372-00276723, Gaia DR2 1545014807135001088, WISEA J121929.37+471523.0, SDSS J121929.46+471522.8, WISE J121929.37+471522.9, GSC2 N1110012272, WDJ121929.50+471522.94, SDSS J121928.80+471536.0, J1219+4715
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 19 29.32 (0.04) | 12 19 29.45 | 12 19 29.32 (0.07) | 12 19 29.32 | 12 19 29.50 (0.04) | 12 19 29.32 | 12 19 28.97 | |||||||
| Declination | 47 15 22.88 (0.05) | 47 15 22.88 | 47 15 22.89 (0.08) | 47 15 22.88 | 47 15 22.94 (0.05) | 47 15 22.89 | 47 15 33.12 | |||||||
| Spectral type | DC | DC | DA+dM | DA d | DC | |||||||||
| Effective temperature | [K] | 7277.0 (54) | 7804.0 | 7502.0 | 7102.0 (67) | |||||||||
| log(g) | [cgs] | 7.94 (0.01) | 8.19 | 8.08 | 7.91 (0.02) | |||||||||
| Mass | [M☉] | 0.537 (0.01) | 0.71 | 0.626 | 0.524 (0.01) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 1.3600 | 1.5310 | 1.4620 | ||||||||||
| log(H/He) | -3.6 | |||||||||||||
| 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] | 14.38 (0.08) | 14.28 (0.1) | 14.28 (0.1) | 14.38 | 14.38 (0.08) | 14.28 (0.1) | |||||||
| Distance | [pc] | 69.55 (0.4) | 70.03 (0.6) | 70.04 (0.6) | 69.55 | 69.55 (0.4) | 70.04 (0.6) | |||||||
| Composition | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -112.9756509 (0.05) | -113.2768306 (0.1) | -112.976 (0.04) | -113.2768306 | |||||||||
| Proper motion (declination) | [mas/yr] | -3.333938368 (0.07) | -3.491530399 (0.2) | -3.334 (0.07) | -3.491530399 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 17.74 (0.4) | |||||||||||||
| V magnitude | 17.59 | |||||||||||||
| R magnitude | 17.23 (0.4) | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 17.12 (0.03) | |||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 18.08 (0.01) | 18.08 (0.01) | 18.08 (0.01) | 18.09 (0.01) | 18.07 | |||||||||
| g magnitude | 17.66 (0.005) | 17.66 (0.005) | 17.64 (0.005) | 17.65 | ||||||||||
| r magnitude | 17.53 (0.006) | 17.53 (0.006) | 17.52 (0.005) | 17.53 | ||||||||||
| i magnitude | 17.58 (0.006) | 17.58 (0.006) | 17.53 (0.006) | 17.58 | ||||||||||
| z magnitude | 17.64 (0.02) | 17.65 (0.02) | 17.64 (0.02) | 17.64 | ||||||||||
| G magnitude | 17.53 (0.008) | 17.56 | 17.53 | 17.53 (0.003) | 17.56 | |||||||||
| BP magnitude | 17.68 (0.008) | 17.67 | 17.67 | |||||||||||
| RP magnitude | 17.25 (0.009) | 17.23 | 17.23 | |||||||||||
| Pan g magnitude | 17.67 (0.03) | 17.67 (0.03) | ||||||||||||
| Pan r magnitude | 17.55 (0.01) | 17.55 (0.01) | ||||||||||||
| Pan i magnitude | 17.59 (0.004) | 17.59 (0.004) | ||||||||||||
| Pan z magnitude | 17.69 (0.006) | 17.69 (0.006) | ||||||||||||
| Pan y magnitude | 17.74 (0.02) | 17.74 (0.02) | ||||||||||||
| E(B-V) | 0.004 | |||||||||||||
* 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.