All names: TIC 179299789, WDJ103855.57-204056.83, LHS 2393, 2MASS J10385559-2040572, LHS 2293, WISEA J103855.35-204050.9, WD 1036-204, GJ 3614, Gaia DR2 3553682127126319360, NLTT 24944, J1038-2040, LTT 3902, Gaia EDR3 3553682127126319360, EC 10365-2025, EGGR 535, PSO J159.7305-20.6807, LP 790-29, Gaia DR3 3553682127126319360, CNS5 2606
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | Blouin & Dufour 2019 | Blouin et al. 2019 | Gaia DR2 | Subasavage et al. 2017 | Stilism | Holberg et al. 2016 | Ferrario et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Subasavage et al. 2009 | Holberg et al. 2008 | Subasavage et al. 2007 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 38 55.24 (0.04) | 10 38 55.25 (0.06) | 10 38 55.57 | 10 38 55.44 | 10 38 55.57 | 10 38 55.57 | 10 38 55.24 | 10 38 55.57 (0.04) | 10 38 55.25 | 10 38 56.95 | ||||||||||||
| Declination | -20 40 48.01 (0.04) | -20 40 48.29 (0.05) | -20 40 05.08 | -20 40 55.20 | -20 40 56.70 | -20 40 56.70 | -20 40 48.01 | -20 40 56.83 (0.04) | -20 40 48.29 | -20 41 26.52 | ||||||||||||
| Spectral type | DQpecP | DQP | DQpec | DQP | DQpecP | DQpecP | DQB | DQpecP10.2 | DQpecP | Dqpec | DQP | DQ | DQ | DQ10P | DX | |||||||
| Effective temperature | [K] | 5754.0 (54) | 5362.0 (9) | 4530.0 (215) | 4530.0 (215) | 5300.0 (80) | 4694.0 (124) | 7800.0 | 4694.0 | 4694.0 (124) | 4948.0 (70) | 7330.0 (200) | 7329.0 (7) | |||||||||
| log(g) | [cgs] | 8.56 (0.02) | 8.45 (0.003) | 8.07 (0.1) | 8.07 (0.1) | 8.32 (0.03) | 8.05 (0.02) | 8.00 (0) | 8.05 (0.02) | 7.96 (0.3) | 8.92 (0.003) | |||||||||||
| Mass | [M☉] | 0.937 (0.01) | 0.868 (0.003) | 0.614 (0.08) | 0.614 (0.08) | 0.78 (0.03) | 0.6 (0.01) | 0.6 (0.01) | 0.55 (0.1) | 1.151 (0.002) | ||||||||||||
| log(Luminosity) | [L☉] | -4.14 (0.04) | -4.19 | -3.37 (0.1) | ||||||||||||||||||
| Cooling age | [Gyr] | 7.0300 | 7.0380 (0.8) | 6.5200 (0.2) | 7.1300 | 7.1300 | 1.7800 (0.5) | |||||||||||||||
| log(H/He) | ||||||||||||||||||||||
| log(C/He) | -6.56 | -7.2 (0.2) | -7.2 | |||||||||||||||||||
| 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] | 70.84 (0.05) | 70.84 (0.05) | 70.76 (0.08) | 70.76 (0.07) | 70.76 (0.07) | 70.76 (0.08) | 70.02 (0.4) | 70.00 (0.7) | 70.00 (0.7) | 70.00 (0.7) | 70.84 | 70.84 (0.05) | 70.76 (0.08) | 70.00 (0.6) | |||||||
| Distance | [pc] | 14.12 (0.009) | 14.12 (0.01) | 14.13 (0.02) | 14.13 (0.01) | 14.13 (0.01) | 14.13 (0.02) | 14.28 (0.09) | 14.29 (0.1) | 14.28 | 14.30 (0.1) | 14.29 (0.1) | 16.20 | 16.20 | 14.12 | 14.12 (0.009) | 14.13 (0.02) | 14.29 (0.1) | ||||
| Composition | He | He | He | He | He | He | He | He | He | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | -288.0413413 (0.04) | -287.9762438 (0.09) | -288.041 (0.04) | -287.9762438 | |||||||||||||||||
| Proper motion (declination) | [mas/yr] | 551.3698174 (0.04) | 551.2839921 (0.09) | 551.37 (0.04) | 551.2839921 | |||||||||||||||||
| Variability | ||||||||||||||||||||||
| Magnetic | yes | yes | yes | yes | yes | |||||||||||||||||
| Bd | [MG] | 50 | 50 | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||||
| Binarity | ||||||||||||||||||||||
| B magnitude | 16.37 | 16.37 | 16.37 | 15.90 | ||||||||||||||||||
| V magnitude | 16.25 | 16.24 | 16.28 | 16.28 | 16.28 | |||||||||||||||||
| R magnitude | 15.54 | 15.57 | 15.57 | 15.54 | ||||||||||||||||||
| I magnitude | 15.33 | 15.35 | 15.35 | 15.34 | ||||||||||||||||||
| J magnitude | 14.64 (0.003) | 14.63 (0.03) | 14.63 (0.03) | 14.70 | 14.63 (0.03) | 14.63 (0.03) | 14.70 | 14.63 (0.03) | ||||||||||||||
| H magnitude | 14.35 (0.04) | 14.35 (0.04) | 14.35 (0.04) | 14.28 | 14.35 (0.04) | 14.35 (0.04) | 14.28 | 14.35 (0.04) | ||||||||||||||
| K magnitude | 14.08 (0.006) | 14.04 (0.07) | 14.04 (0.07) | 14.09 | 14.04 (0.07) | 14.03 (0.07) | 14.09 | 14.04 (0.07) | ||||||||||||||
| u magnitude | ||||||||||||||||||||||
| g magnitude | 16.62 (0.007) | |||||||||||||||||||||
| r magnitude | 15.75 (0.007) | |||||||||||||||||||||
| i magnitude | 15.72 (0.004) | |||||||||||||||||||||
| z magnitude | 15.71 (0.003) | |||||||||||||||||||||
| G magnitude | 15.84 (0.01) | 15.86 | 15.84 | 15.84 (0.004) | 15.86 | |||||||||||||||||
| BP magnitude | 16.09 (0.01) | 16.05 | 16.05 | |||||||||||||||||||
| RP magnitude | 15.35 (0.002) | 15.35 | 15.35 | |||||||||||||||||||
| Pan g magnitude | 16.64 (0.007) | 16.64 (0.007) | 16.62 | 16.62 (0.007) | ||||||||||||||||||
| Pan r magnitude | 15.73 (0.002) | 15.72 (0.002) | 15.75 | 15.75 (0.007) | ||||||||||||||||||
| Pan i magnitude | 15.72 (0.002) | 15.72 (0.002) | 15.72 | 15.72 (0.004) | ||||||||||||||||||
| Pan z magnitude | 15.72 (0.002) | 15.72 (0.002) | 15.71 | 15.71 (0.003) | ||||||||||||||||||
| Pan y magnitude | 15.67 (0.005) | 15.67 (0.005) | 15.65 | 15.65 (0.003) | ||||||||||||||||||
| 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.