All names: 2MASS J20053482-1056545, USNO 667, WD 2002-110, USNO-B1.0 0790-00600596, PSO J301.3989-10.9487, Gaia DR3 4190813690536580608, PLX 4763.01, NLTT 48683, EGGR 498, TIC 70937691, J2005-1056, CNS5 4981, Gaia DR2 4190813690536580608, WDJ200534.87-105654.43, LHS 483, LP 754-16, Gaia EDR3 4190813690536580608, GJ 4133, WD 2002-11
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | O'Brien et al. 2024 | Caron et al. 2023 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Holberg et al. 2016 | Sion et al. 2014 | Giammichele et al. 2012 | Holberg et al. 2008 | Bergeron et al. 2001 | Bergeron et al. 1997 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 05 36.03 (0.06) | 20 05 35.27 | 20 05 35.99 (0.07) | 20 05 34.80 | 20 05 34.87 (0.06) | 20 05 35.99 | 20 05 30.94 | |||||||||||||
| Declination | -10 56 55.74 (0.04) | -10 56 54.91 | -10 56 55.70 (0.04) | -10 56 52.80 | -10 56 54.43 (0.04) | -10 56 55.70 | -10 56 47.04 | |||||||||||||
| Spectral type | DC | DC | DC | DA | DA10.5 | DC | DA | DC | DA10 | DC9 | ||||||||||
| Effective temperature | [K] | 4577.0 (33) | 4670.0 (11) | 4600.0 (20) | 4597.0 | 4291.0 | 4675.0 (88) | 4800.0 | 4675.0 (88) | 4800.0 (50) | 4810.0 (50) | |||||||||
| log(g) | [cgs] | 8.14 (0.02) | 8.24 (0.004) | 8.18 (0.01) | 8.17 | 7.94 | 8.23 (0.02) | 8.23 (0.02) | 8.31 (0.02) | 8.33 (0.02) | ||||||||||
| Mass | [M☉] | 0.668 (0.02) | 0.732 (0.004) | 0.692 (0.01) | 0.685 | 0.531 | 0.73 (0.01) | 0.72 (0.01) | 0.77 (0.01) | 0.78 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | -4.29 | -4.31 (0.01) | -4.31 (0.01) | ||||||||||||||||
| Cooling age | [Gyr] | 9.7100 | 8.7490 (0.1) | 8.6750 | 6.6250 | 8.0800 | 8.8000 | 7.3500 (0.04) | 8.9700 (0.04) | |||||||||||
| 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] | 57.81 (0.06) | 57.81 (0.06) | 57.76 (0.08) | 57.76 (0.08) | 57.76 (0.08) | 57.70 (0.8) | 57.70 (0.8) | 57.70 (0.8) | 57.70 (0.8) | 57.70 (0.8) | 57.81 (0.06) | 57.76 (0.08) | 57.60 (6) | ||||||
| Distance | [pc] | 17.30 (0.02) | 17.30 (0.02) | 17.31 (0.02) | 17.31 (0.02) | 17.31 (0.02) | 17.33 (0.2) | 17.33 | 17.30 (0.2) | 17.33 | 17.33 (0.2) | 17.33 (0.2) | 17.30 (0.02) | 17.31 (0.02) | 17.36 (2) | |||||
| Composition | H | H | H | H | He | He | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 1063.415658 (0.07) | 1063.418738 (0.1) | 1063.416 (0.07) | 1063.418738 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -81.59289099 (0.05) | -81.57890512 (0.09) | -81.593 (0.05) | -81.57890512 | |||||||||||||||
| Variability | ||||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | ||||||||||||||||||||
| B magnitude | 18.11 | 18.11 | 18.11 | 17.91 | ||||||||||||||||
| V magnitude | 16.90 | 16.95 | 16.95 | 16.95 | 16.89 | |||||||||||||||
| R magnitude | 16.36 | 16.36 | 16.36 | 16.40 | ||||||||||||||||
| I magnitude | 15.86 | 15.86 | 15.86 | |||||||||||||||||
| J magnitude | 15.31 (0.03) | 15.28 (0.06) | 15.32 | 15.32 | 15.31 | 15.28 (0.06) | ||||||||||||||
| H magnitude | 15.14 (0.03) | 14.99 (0.07) | 15.11 | 15.11 | 15.14 | 14.99 (0.07) | ||||||||||||||
| K magnitude | 15.09 (0.03) | 14.75 (0.1) | 15.09 | 15.09 | 15.09 | 14.75 (0.1) | ||||||||||||||
| u magnitude | 19.41 (0.04) | 19.41 (0.03) | 19.46 (0.04) | |||||||||||||||||
| g magnitude | 17.50 (0.005) | 17.41 (0.004) | 17.49 (0.005) | |||||||||||||||||
| r magnitude | 16.61 (0.004) | 16.63 (0.009) | 16.61 (0.005) | |||||||||||||||||
| i magnitude | 16.28 (0.005) | 16.31 (0.004) | 16.27 (0.005) | |||||||||||||||||
| z magnitude | 16.13 (0.008) | 16.21 (0.007) | 16.12 (0.008) | |||||||||||||||||
| G magnitude | 16.67 (0.006) | 16.68 | 16.67 (0.003) | 16.68 | ||||||||||||||||
| BP magnitude | 17.25 (0.006) | 17.27 | 17.27 | |||||||||||||||||
| RP magnitude | 15.97 (0.003) | 15.98 | 15.98 | |||||||||||||||||
| Pan g magnitude | 17.41 (0.004) | 17.41 (0.005) | 17.41 (0.004) | |||||||||||||||||
| Pan r magnitude | 16.63 (0.006) | 16.65 (0.004) | 16.63 (0.009) | |||||||||||||||||
| Pan i magnitude | 16.31 (0.005) | 16.32 (0.003) | 16.31 (0.004) | |||||||||||||||||
| Pan z magnitude | 16.21 (0.008) | 16.22 (0.002) | 16.21 (0.007) | |||||||||||||||||
| Pan y magnitude | 16.18 (0.0006) | 16.14 (0.002) | 16.18 (0.001) | |||||||||||||||||
| E(B-V) | 0.000 | |||||||||||||||||||
* 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.