All names: USNO-B1.0 0917-00193088, WD 0956+020, TIC 275308213, Gaia DR2 3834721387994870784, GALEX J095850.5+014723, HE 0956+0201, COSMOS J095850.54+014724.3, SDSS J095850.56+014724.0, SDSS J095850.52+014724.2, Gaia DR3 3834721387994870784, LAMOST J095850.56+014724.0, SDSS J095850.56+014724.11, J0958+0147, COSMOS 639982, PSO J149.7106+01.7900, SDSS J095850.51+014724.1, 2MASS J09585053+0147240, [BGK2006] J095850.52+014724.1, WDJ095850.52+014724.17, WD0956+020, PG 0956+021, Gaia EDR3 3834721387994870784, SDSS J095850.56+014724.1
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | SDSS DR12 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Guo et al. 2015 | Kepler et al. 2015 | Gianninas et al. 2011 | Koester et al. 2009 | Koester et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 58 50.58 (0.05) | 09 58 50.52 | 09 58 50.52 | 09 58 50.58 (0.09) | 09 58 50.50 | 09 58 50.58 | 09 58 50.52 (0.05) | 09 58 50.58 | 09 58 58.90 | |||||||||||
| Declination | 01 47 24.13 (0.04) | 01 47 24.18 | 01 47 24.18 | 01 47 24.13 (0.07) | 01 47 24.00 | 01 47 24.13 | 01 47 24.17 (0.04) | 01 47 24.13 | 01 49 49.08 | |||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA3.0 | DA | DA3 | DA | ||||||||
| Effective temperature | [K] | 16304.0 (182) | 16308.0 (182) | 15537.0 | 16921.0 (53) | 16630.0 (264) | 16495.0 (25) | 15267.0 (57) | 16469.0 (249) | |||||||||||
| log(g) | [cgs] | 7.92 (0.01) | 7.91 (0.02) | 7.85 | 7.99 (0.01) | 7.93 (0.05) | 7.81 (0.006) | 7.69 (0.01) | 7.93 (0.01) | |||||||||||
| Mass | [M☉] | 0.57 (0.008) | 0.563 (0.01) | 0.533 | 0.611 (0.005) | 0.58 (0.03) | 0.46 | 0.577 (0.01) | ||||||||||||
| log(Luminosity) | [L☉] | |||||||||||||||||||
| Cooling age | [Gyr] | 0.1377 | ||||||||||||||||||
| 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] | 11.67 (0.06) | 11.58 (0.1) | 11.67 | 11.67 (0.06) | 11.58 (0.1) | ||||||||||||||
| Distance | [pc] | 85.68 (0.5) | 86.36 (1) | 81.00 | 85.68 | 85.68 (0.5) | 86.36 (1) | |||||||||||||
| Composition | H | H | H | |||||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 60.09764713 (0.06) | 59.86354192 (0.1) | 60.098 (0.06) | 59.864 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -2.498457575 (0.05) | -2.519346077 (0.1) | -2.498 (0.05) | -2.519 | |||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | ||||||||||||||||||||
| B magnitude | 15.61 | 15.61 | 16.05 | |||||||||||||||||
| V magnitude | ||||||||||||||||||||
| R magnitude | 16.10 | |||||||||||||||||||
| I magnitude | ||||||||||||||||||||
| J magnitude | 16.06 (0.009) | |||||||||||||||||||
| H magnitude | 16.13 (0.02) | |||||||||||||||||||
| K magnitude | 16.18 (0.03) | |||||||||||||||||||
| u magnitude | 15.77 (0.005) | 15.77 (0.005) | 15.78 (0.01) | 15.77 (0.005) | 15.77 (0.005) | |||||||||||||||
| g magnitude | 15.53 (0.003) | 15.53 (0.003) | 15.56 (0.02) | 15.53 (0.003) | 15.53 (0.003) | |||||||||||||||
| r magnitude | 15.85 (0.004) | 15.85 (0.004) | 15.84 (0.02) | 15.85 (0.004) | 15.85 (0.004) | |||||||||||||||
| i magnitude | 16.14 (0.005) | 16.14 (0.005) | 16.14 (0.02) | 16.14 (0.005) | 16.14 (0.005) | |||||||||||||||
| z magnitude | 16.42 (0.009) | 16.42 (0.009) | 16.42 (0.02) | 16.42 (0.009) | 16.42 (0.009) | |||||||||||||||
| G magnitude | 15.70 (0.003) | 15.73 | 15.70 | 15.70 (0.003) | 15.73 | |||||||||||||||
| BP magnitude | 15.66 (0.003) | 15.65 | 15.65 | |||||||||||||||||
| RP magnitude | 15.85 (0.004) | 15.85 | 15.85 | |||||||||||||||||
| Pan g magnitude | 15.58 (0.003) | |||||||||||||||||||
| Pan r magnitude | 15.87 (0.002) | |||||||||||||||||||
| Pan i magnitude | 16.15 (0.005) | |||||||||||||||||||
| Pan z magnitude | 16.40 (0.007) | |||||||||||||||||||
| Pan y magnitude | 16.55 (0.007) | |||||||||||||||||||
| E(B-V) | 0.003 | |||||||||||||||||||
* 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.