All names: GALEX J123437.1+664337, SDSS J123437.19+664336.5, Gaia EDR3 1680651008214627968, WD 1232+670, SDSS J123437.18+664336.6, Gaia DR3 1680651008214627968, Gaia DR2 1680651008214627968, SDSS J123437.19+664336.6, SDSS J123437.18+664336.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2004 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 34 37.19 (0.2) | 12 34 37.19 | 12 34 37.19 (0.3) | 12 34 37.19 (0.2) | 12 34 37.19 | 12 34 36.96 | 12 34 37.19 | 12 34 37.19 | ||||
| Declination | 66 43 36.60 (0.2) | 66 43 36.60 | 66 43 36.61 (0.2) | 66 43 36.63 (0.2) | 66 43 36.52 | 66 43 28.92 | 66 43 36.58 | 66 43 36.59 | ||||
| Spectral type | DA | DA | DA | DA0.6 | DA | |||||||
| Effective temperature | [K] | 83130.0 (11460) | 87652.0 (6555) | 81553.0 (6334) | 91304.0 (6285) | |||||||
| log(g) | [cgs] | 6.84 (0.3) | 7.32 (0.3) | 7.16 (0.2) | 7.37 (0.3) | |||||||
| Mass | [M☉] | 0.45 (0.07) | 0.523 (0.04) | |||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0000 | ||||||||||
| 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] | 0.29 (0.2) | 0.57 (0.3) | 0.29 (0.2) | ||||||||
| Distance | [pc] | 3424.13 (2489) | 1769.90 (995) | 3424.66 (2490) | ||||||||
| Composition | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -0.91194432 (0.2) | -0.256369658 (0.5) | -0.912 (0.2) | 1.0 | -1.0 | ||||||
| Proper motion (declination) | [mas/yr] | -1.342561549 (0.2) | -2.251848551 (0.4) | -1.343 (0.2) | -6.3 | -4.0 | ||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 18.48 (0.02) | 18.48 (0.01) | 18.43 (0.02) | 18.40 | 18.42 (0.02) | 18.40 (0.02) | ||||||
| g magnitude | 18.89 (0.009) | 18.89 (0.009) | 18.91 (0.02) | 18.92 | 18.90 (0.02) | 18.92 (0.03) | ||||||
| r magnitude | 19.51 (0.02) | 19.51 (0.02) | 19.52 (0.02) | 19.53 | 19.50 (0.02) | 19.53 (0.02) | ||||||
| i magnitude | 19.87 (0.03) | 19.88 (0.03) | 19.88 (0.04) | 19.90 | 19.87 (0.03) | 19.90 (0.03) | ||||||
| z magnitude | 20.48 (0.2) | 20.48 (0.2) | 20.45 (0.2) | 20.48 | 20.45 (0.2) | 20.48 (0.2) | ||||||
| G magnitude | 19.24 (0.02) | 19.30 | 19.24 (0.004) | |||||||||
| BP magnitude | 19.07 (0.02) | 19.01 | ||||||||||
| RP magnitude | 19.63 (0.07) | 19.67 | ||||||||||
| Pan g magnitude | 19.06 (0.003) | |||||||||||
| Pan r magnitude | 19.54 (0.02) | |||||||||||
| Pan i magnitude | 19.93 (0.02) | |||||||||||
| Pan z magnitude | 20.23 (0.05) | |||||||||||
| Pan y magnitude | 20.26 (0.07) | |||||||||||
| 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.