All names: WD 0156+155, Gaia EDR3 78629306318257536, SDSS J015939.32+154847.5, UCAC4 530-003485, 01596+1548, Gaia DR2 78629306318257536, Gaia DR3 78629306318257536, WISEA J015939.30+154847.6, GALEX J015939.3+154848, PG 0156+156, J0159+1548, WISE J015939.29+154847.8, 2MASS J01593937+1548478, TIC 404713691, WDJ015939.37+154847.62, PM J01596+1548
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 01 59 39.28 (0.04) | 01 59 39.29 (0.06) | 01 59 39.29 (0.06) | 01 59 39.28 | 01 59 39.37 (0.04) | 01 59 39.29 | 01 59 39.02 | |||||||
| Declination | 15 48 47.47 (0.04) | 15 48 47.47 (0.06) | 15 48 47.47 (0.06) | 15 48 47.47 | 15 48 47.63 (0.04) | 15 48 47.47 | 15 48 43.56 | |||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC6 | DC6 | ||||||
| Effective temperature | [K] | 9156.0 (60) | 9095.0 (103) | 9147.0 (36) | 9148.9 (77) | 7760.0 (117) | 8925.0 (71) | |||||||
| log(g) | [cgs] | 8.14 (0.009) | 8.16 (0.03) | 8.14 (0.006) | 8.19 (0.02) | 8.00 (0) | 8.12 (0.01) | |||||||
| Mass | [M☉] | 0.664 (0.008) | 0.678 (0.02) | 0.668 (0.006) | 0.58 (0.1) | 0.653 (0.01) | ||||||||
| log(Luminosity) | [L☉] | -3.29 | ||||||||||||
| Cooling age | [Gyr] | 1.0100 | ||||||||||||
| log(H/He) | -4.2 | -4.2 | ||||||||||||
| log(C/He) | ||||||||||||||
| log(Ca/He) | ||||||||||||||
| 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] | 26.15 (0.05) | 26.15 (0.05) | 26.26 (0.08) | 26.26 (0.08) | 26.26 (0.08) | 26.15 | 26.15 (0.05) | 26.26 (0.08) | |||||
| Distance | [pc] | 38.24 (0.07) | 38.24 (0.07) | 38.08 (0.1) | 38.08 (0.1) | 38.08 (0.1) | 38.30 (6) | 38.24 | 38.24 (0.07) | 38.08 (0.1) | ||||
| Composition | He | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -75.66425194 (0.05) | -75.43177895 (0.1) | -75.664 (0.05) | -75.43177895 | |||||||||
| Proper motion (declination) | [mas/yr] | -10.10694041 (0.05) | -9.833259806 (0.2) | -10.107 (0.05) | -9.833259806 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 16.06 (0.04) | |||||||||||||
| V magnitude | 15.80 (0.1) | |||||||||||||
| R magnitude | 15.97 (0.03) | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 15.66 (0.01) | 15.74 (0.08) | ||||||||||||
| H magnitude | 15.64 (0.01) | 15.44 (0.1) | ||||||||||||
| K magnitude | 15.64 (0.02) | |||||||||||||
| u magnitude | 15.96 (0.006) | 15.96 (0.006) | 15.96 (0.006) | |||||||||||
| g magnitude | 15.77 (0.003) | 15.77 (0.003) | ||||||||||||
| r magnitude | 15.83 (0.004) | 15.83 (0.004) | ||||||||||||
| i magnitude | 15.94 (0.004) | 15.94 (0.004) | ||||||||||||
| z magnitude | 16.11 (0.008) | 16.11 (0.008) | ||||||||||||
| G magnitude | 15.76 (0.002) | 15.78 | 15.78 | 15.76 | 15.76 (0.003) | 15.78 | ||||||||
| BP magnitude | 15.82 (0.002) | 15.79 | 15.79 | |||||||||||
| RP magnitude | 15.64 (0.003) | 15.65 | 15.65 | |||||||||||
| Pan g magnitude | 15.78 (0.005) | 15.78 (0.006) | ||||||||||||
| Pan r magnitude | 15.85 (0.004) | 15.85 (0.003) | ||||||||||||
| Pan i magnitude | 15.97 (0.005) | 15.97 (0.005) | ||||||||||||
| Pan z magnitude | 16.11 (0.004) | 16.11 (0.004) | ||||||||||||
| Pan y magnitude | 16.21 (0.004) | 16.21 (0.004) | ||||||||||||
| E(B-V) | 0.001 | |||||||||||||
* 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.