All names: SDSS J121743.11+623118.2, WD 1215+627, FBS 1215+628, SDSS J121743.13+623118.2, FBS B 701, Gaia EDR3 1584181713419346560, SDSS J121743.12+623118.2, SDSS J121743.11+623118.3, Gaia DR3 1584181713419346560, WIRED J121743.13+623118.2, GALEX J121743.1+623118, SDSS J121743.14+623118.3, Gaia DR2 1584181713419346560
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Bedard et al. 2020 | Gaia DR2 | Stilism | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 17 43.12 (0.05) | 12 17 43.13 | 12 17 43.12 (0.08) | 12 17 43.13 (0.05) | 12 17 43.11 | 12 17 42.46 | 12 17 43.14 | |||||
| Declination | 62 31 18.21 (0.04) | 62 31 18.27 | 62 31 18.21 (0.06) | 62 31 18.25 (0.04) | 62 31 18.29 | 62 31 14.52 | 62 31 18.29 | |||||
| Spectral type | DAO | DAO | DAO | DAO | DAO | DAO | ||||||
| Effective temperature | [K] | 84010.0 (5597) | 98170.0 (5220) | 99605.0 (2165) | 82759.0 (3126) | |||||||
| log(g) | [cgs] | 6.95 (0.1) | 6.98 (0.2) | 6.94 (0.1) | 6.80 (0.1) | |||||||
| Mass | [M☉] | 0.45 (0.03) | 0.53 (0.04) | |||||||||
| log(Luminosity) | [L☉] | 1.79 (0.2) | ||||||||||
| Cooling age | [Gyr] | 0.0001 | 0.0024 | |||||||||
| 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] | 0.97 (0.06) | 1.00 (0.08) | 0.97 (0.06) | ||||||||
| Distance | [pc] | 1035.00 (63) | 1002.80 (81) | 1034.98 (63) | ||||||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -5.152312888 (0.07) | -5.012465522 (0.1) | -5.152 (0.07) | 0.7 | |||||||
| Proper motion (declination) | [mas/yr] | -2.850596513 (0.06) | -2.804303985 (0.1) | -2.851 (0.06) | -0.5 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | 16.20 | |||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 15.70 (0.005) | 15.70 (0.005) | 15.71 (0.01) | 15.71 | 15.71 (0.01) | |||||||
| g magnitude | 16.17 (0.004) | 16.17 (0.004) | 16.19 (0.02) | 16.18 | 16.20 (0.02) | |||||||
| r magnitude | 16.76 (0.005) | 16.76 (0.005) | 16.75 (0.03) | 16.75 | 16.76 (0.03) | |||||||
| i magnitude | 17.14 (0.006) | 17.14 (0.006) | 17.10 (0.03) | 17.09 | 17.11 (0.03) | |||||||
| z magnitude | 17.51 (0.02) | 17.51 (0.02) | 17.50 (0.02) | 17.49 | 17.52 (0.02) | |||||||
| G magnitude | 16.46 (0.003) | 16.50 | 16.46 (0.003) | |||||||||
| BP magnitude | 16.27 (0.003) | 16.19 | ||||||||||
| RP magnitude | 16.84 (0.007) | 16.83 | ||||||||||
| Pan g magnitude | 16.28 (0.005) | |||||||||||
| Pan r magnitude | 16.75 (0.004) | |||||||||||
| Pan i magnitude | 17.18 (0.007) | |||||||||||
| Pan z magnitude | 17.47 (0.007) | |||||||||||
| Pan y magnitude | 17.67 (0.01) | |||||||||||
| E(B-V) | 0.019 | |||||||||||
* 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.