All names: SDSS J020132.24-003932.3, PB 6582, WD 0158-009, J0201-0039, Gaia DR2 2506787624002918272, SDSS J020132.24-003932.0, WD 0158-008, WD 0158-008, SDSS J020132.23-003932.3
| Parameter | Unit | Coutu et al. 2019 | Gaia DR2 | Dufour et al. 2007 | Harris et al. 2003 | SDSS DR12 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 01 32.24 | 02 01 32.23 (0.1) | 02 01 32.24 | 02 01 32.24 | 02 01 32.24 | 02 01 31.30 | 02 01 32.24 | 02 01 32.24 | |||
| Declination | -00 39 32.51 | -00 39 33.41 (0.1) | -00 39 32.51 | -00 39 32.36 | -00 39 32.36 | -00 39 26.64 | -00 39 32.02 | -00 39 32.02 | |||
| Spectral type | DZ | DZ | DZ | DZ | DZ | DZMG | DZ | DZ | |||
| Effective temperature | [K] | 9863.0 (261) | 9650.0 (210) | 10498.0 (168) | 10628.0 (240) | 10655.0 (234) | |||||
| log(g) | [cgs] | 8.15 | 8.00 (0) | 7.74 (0.2) | 9.42 (0.4) | 9.61 (0.3) | |||||
| Mass | [M☉] | 0.6726 | |||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.8100 | |||||||||
| log(H/He) | <-5.8137 | <-5.0 | |||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | -7.9910000000000005 (0.05) | -8.33 (0.05) | |||||||||
| 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] | 8.99 | 8.99 (0.2) | ||||||||
| Distance | [pc] | 111.19 (2) | 111.19 (2) | 110.00 | |||||||
| Composition | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -12.72492383 (0.3) | -1.0 | ||||||||
| Proper motion (declination) | [mas/yr] | -80.6041929 (0.2) | -9.0 | ||||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 17.50 | ||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 17.77 | 17.79 (0.01) | 17.77 | 17.75 (0.02) | 17.76 | 17.78 (0.02) | 17.78 (0.02) | ||||
| g magnitude | 17.56 | 17.54 (0.005) | 17.56 | 17.59 (0.03) | 17.56 | 17.61 (0.03) | 17.61 (0.03) | ||||
| r magnitude | 17.70 | 17.69 (0.006) | 17.70 | 17.70 (0.02) | 17.70 | 17.71 (0.02) | 17.71 (0.02) | ||||
| i magnitude | 17.86 | 17.85 (0.008) | 17.85 | 17.85 (0.02) | 17.85 | 17.86 (0.02) | 17.86 (0.02) | ||||
| z magnitude | 18.09 | 18.04 (0.02) | 18.08 | 18.09 (0.02) | 18.08 | 18.09 (0.02) | 18.09 (0.02) | ||||
| G magnitude | 17.63 | ||||||||||
| BP magnitude | 17.62 | ||||||||||
| RP magnitude | 17.54 | ||||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.