All names: [HHD2009] SDSS J1237+6143, Gaia EDR3 1580191624377677568, WIRED J123749.23+614343.8, TIC 147685702, WD 1235+620, 2MASS J12374924+6143438, GALEX J123749.2+614344, Gaia DR3 1580191624377677568, [LPI99] 123535.5+620013, SDSS J123749.24+614343.8, SDSS J123749.24+614344.3, SDSS J123749.23+614343.8, WD 1235+020, Gaia DR2 1580191624377264000
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | sdss-wdms.org (29/04/2016) | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 37 49.17 (0.09) | 12 37 49.24 | 12 37 49.18 (0.1) | 12 37 49.23 | 12 37 49.25 (0.09) | 12 37 49.23 | 12 37 48.84 | 12 37 49.24 | |||||
| Declination | 61 43 44.06 (0.08) | 61 43 43.95 | 61 43 44.06 (0.1) | 61 43 43.79 | 61 43 43.98 (0.08) | 61 43 43.86 | 61 43 36.84 | 61 43 43.84 | |||||
| Spectral type | DA+M | DA | DA+M | DA+M | DA dM | DA+M | DA | ||||||
| Effective temperature | [K] | 14728.0 (884) | 15030.0 (770) | 6320.0 (25) | 6300.0 (2) | ||||||||
| log(g) | [cgs] | 8.02 (0.1) | 8.01 (0.1) | 5.01 (0.01) | 6.85 (0.1) | ||||||||
| Mass | [M☉] | 0.62 (0.08) | 0.62 (0.06) | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 0.2344 | |||||||||||
| 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] | 2.98 (0.1) | 2.81 (0.2) | 2.98 (0.1) | |||||||||
| Distance | [pc] | 335.43 (12) | 356.18 (20) | 333.00 (60) | 335.44 (12) | ||||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -33.57741968 (0.1) | -34.08142589 (0.2) | -33.577 (0.1) | -31.4 | ||||||||
| Proper motion (declination) | [mas/yr] | 5.425122528 (0.1) | 5.704858519 (0.2) | 5.425 (0.1) | -1.8 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | WDMS | WDMS | WDMS | ||||||||||
| B magnitude | 19.10 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.61 (0.07) | ||||||||||||
| H magnitude | 14.92 (0.07) | ||||||||||||
| K magnitude | 14.64 (0.09) | ||||||||||||
| u magnitude | 19.04 (0.02) | 19.08 | 19.04 (0.02) | 19.08 (0.03) | 19.08 | 19.06 (0.03) | |||||||
| g magnitude | 18.62 (0.008) | 18.61 | 18.62 (0.008) | 18.61 (0.02) | 18.61 | 18.61 (0.02) | |||||||
| r magnitude | 18.43 (0.008) | 18.42 | 18.43 (0.008) | 18.42 (0.02) | 18.42 | 18.44 (0.02) | |||||||
| i magnitude | 17.64 (0.007) | 17.67 | 17.64 (0.007) | 17.67 (0.02) | 17.67 | 17.68 (0.02) | |||||||
| z magnitude | 17.04 (0.01) | 17.06 | 17.04 (0.01) | 17.06 (0.02) | 17.06 | 17.09 (0.02) | |||||||
| G magnitude | 18.05 (0.02) | 18.06 | 18.05 (0.003) | ||||||||||
| BP magnitude | 18.63 (0.02) | 18.64 | |||||||||||
| RP magnitude | 17.24 (0.01) | 17.24 | |||||||||||
| Pan g magnitude | 18.59 (0.01) | ||||||||||||
| Pan r magnitude | 18.41 (0.006) | ||||||||||||
| Pan i magnitude | 17.67 (0.003) | ||||||||||||
| Pan z magnitude | 17.17 (0.009) | ||||||||||||
| Pan y magnitude | 16.90 (0.004) | ||||||||||||
| E(B-V) | 0.017 | ||||||||||||
* 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.