All names: Gaia DR2 3928060510626899200, LBQS 1243+1211, Gaia DR3 3928060510626899200, USNO-B1.0 1019-00240331, WD 1243+121, LSPM J1246+1155, WDJ124630.12+115520.64, GALEX J124630.0+115521, Gaia EDR3 3928060510626899200, J1246+1155, SDSS J124630.09+115521.0, SDSS J124630.10+115521.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Coutu et al. 2019 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 46 30.02 (0.09) | 12 46 30.10 | 12 46 30.12 | 12 46 30.03 (0.1) | 12 46 30.02 | 12 46 30.12 (0.09) | 12 46 30.03 | 12 46 29.95 | 12 46 30.10 | ||||||
| Declination | 11 55 22.80 (0.05) | 11 55 21.01 | 11 55 20.64 | 11 55 22.73 (0.07) | 11 55 22.80 | 11 55 20.64 (0.05) | 11 55 22.73 | 11 55 19.20 | 11 55 21.01 | ||||||
| Spectral type | DZ | DZ | DZ | DZ | DZ | DZ | DZ | DZ | |||||||
| Effective temperature | [K] | 8400.0 (113) | 8129.0 (41) | 8182.0 (142) | 7811.0 (80) | 10086.0 (18) | |||||||||
| log(g) | [cgs] | 8.13 (0.02) | 8.05 (0.01) | 8.05 | 7.90 (0.02) | 9.61 (0.3) | |||||||||
| Mass | [M☉] | 0.657 (0.02) | 0.607 (0.01) | 0.6088 | 0.518 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 1.2000 | 1.1300 | ||||||||||||
| log(H/He) | -4.0 | <-4.8082 | |||||||||||||
| log(C/He) | |||||||||||||||
| log(Ca/He) | -9.11 | -9.13 | -8.7694 (0.1) | ||||||||||||
| 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] | 12.40 (0.1) | 12.51 (0.1) | 12.51 | 12.51 (0.1) | 12.40 | 12.40 (0.1) | 12.51 (0.1) | |||||||
| Distance | [pc] | 80.64 (0.7) | 79.94 (0.8) | 79.92 (0.8) | 79.92 (0.8) | 80.64 | 80.64 (0.7) | 79.92 (0.8) | |||||||
| Composition | He | He | He | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -82.88052322 (0.1) | -83.13890708 (0.3) | -82.881 (0.1) | -83.13890708 | ||||||||||
| Proper motion (declination) | [mas/yr] | 134.7209429 (0.1) | 134.6637288 (0.1) | 134.721 (0.1) | 134.6637288 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | |||||||||||||||
| B magnitude | 18.00 | ||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | 17.50 | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 17.29 (0.03) | 17.29 (0.03) | |||||||||||||
| H magnitude | 17.27 (0.04) | 17.27 (0.04) | |||||||||||||
| K magnitude | 17.32 (0.08) | 17.32 (0.08) | |||||||||||||
| u magnitude | 17.87 (0.01) | 17.87 (0.01) | 17.87 (0.01) | 17.87 (0.01) | 17.86 (0.03) | ||||||||||
| g magnitude | 17.44 (0.005) | 17.44 (0.005) | 17.44 (0.005) | 17.43 (0.02) | |||||||||||
| r magnitude | 17.45 (0.005) | 17.45 (0.005) | 17.45 (0.005) | 17.45 (0.03) | |||||||||||
| i magnitude | 17.57 (0.006) | 17.57 (0.006) | 17.57 (0.006) | 17.57 (0.01) | |||||||||||
| z magnitude | 17.73 (0.01) | 17.73 (0.01) | 17.73 (0.01) | 17.75 (0.03) | |||||||||||
| G magnitude | 17.41 (0.005) | 17.44 | 17.41 | 17.41 (0.003) | 17.44 | ||||||||||
| BP magnitude | 17.50 (0.005) | 17.49 | 17.49 | ||||||||||||
| RP magnitude | 17.28 (0.007) | 17.25 | 17.25 | ||||||||||||
| Pan g magnitude | 17.44 (0.004) | 17.44 (0.004) | |||||||||||||
| Pan r magnitude | 17.46 (0.003) | 17.46 (0.003) | |||||||||||||
| Pan i magnitude | 17.60 (0.004) | 17.60 (0.004) | |||||||||||||
| Pan z magnitude | 17.77 (0.005) | 17.77 (0.005) | |||||||||||||
| Pan y magnitude | 17.85 (0.02) | 17.85 (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.