All names: SDSS J155853.21+023138.3, SDSS J155853.21+023138.2, 2MASS J15585319+0231368, Gaia EDR3 4412793818186163456, SDSS J155853.22+023138.4, WD 1556+026, LAMOST J155853.19+023136.9, GALEX J155853.1+023138, TIC 272988110, WDS J15589+0231B, Gaia DR2 4412793818186163456, Gaia DR3 4412793818186163456, ** LAW 24B, SDSS J155853.22+023138.3, SLW J1558+0231B, [HHD2009] SDSS J1558+0231, WIRED J155853.21+023138.3
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | Gaia DR2 | Stilism | Tremblay et al. 2011 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 58 53.09 (0.06) | 15 58 53.22 | 15 58 53.09 (0.07) | 15 58 53.22 (0.06) | 15 58 53.21 | 15 58 53.16 | 15 58 53.22 | |||
| Declination | 02 31 37.28 (0.05) | 02 31 38.40 | 02 31 37.31 (0.05) | 02 31 38.35 (0.05) | 02 31 38.25 | 02 31 36.12 | 02 31 38.30 | |||
| Spectral type | DA | DA+dM | DA+M | DA+M | DA+M | |||||
| Effective temperature | [K] | 18640.0 (210) | 20257.0 (114) | 20184.0 (105) | ||||||
| log(g) | [cgs] | 7.95 (0.04) | 7.51 (0.02) | 7.52 (0.02) | ||||||
| Mass | [M☉] | 0.59 (0.02) | ||||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 0.0871 | ||||||||
| 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] | 8.66 (0.07) | 8.55 (0.09) | 8.66 (0.07) | ||||||
| Distance | [pc] | 115.44 (0.9) | 116.94 (1) | 115.44 (0.9) | ||||||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -124.551474 (0.08) | -124.6546845 (0.1) | -124.551 (0.08) | -123.7 | |||||
| Proper motion (declination) | [mas/yr] | -66.8161673 (0.06) | -66.65774523 (0.1) | -66.816 (0.06) | -54.7 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | WDMS | yes | WDMS | |||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 12.41 (0.02) | |||||||||
| H magnitude | 11.79 (0.03) | |||||||||
| K magnitude | 11.57 (0.02) | |||||||||
| u magnitude | 16.81 (0.007) | 16.73 (0.007) | 16.75 (0.02) | 16.75 | 16.77 (0.02) | |||||
| g magnitude | 16.65 (0.004) | 16.36 (0.003) | 16.40 (0.02) | 16.40 | 16.41 (0.02) | |||||
| r magnitude | 17.02 (0.005) | 16.57 (0.004) | 16.62 (0.08) | 16.63 | 16.63 (0.08) | |||||
| i magnitude | 17.94 (0.01) | 14.56 (0.003) | 16.54 (0.2) | 16.66 | 16.55 (0.2) | |||||
| z magnitude | 22.83 (0.9) | 13.85 (0.004) | 22.83 (0.9) | 22.83 | 22.86 (0.9) | |||||
| G magnitude | 16.62 | 16.63 | 16.62 (0.003) | |||||||
| BP magnitude | ||||||||||
| RP magnitude | ||||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.034 | |||||||||
* 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.