All names: GALEX J101839.7-310801, TIC 71338307, NLTT 23992, Gaia EDR3 5461044598970347776, Gaia DR2 5461044598970347776, Gaia DR3 5461044598970347776, WD 1016-308, Subasavage, LEHPM 2-5779, 2MASS J10183985-3108021, LP 904-3, WDJ101839.84-310802.03
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Bedard et al. 2017 | Subasavage et al. 2017 | Stilism | Gianninas et al. 2011 | Subasavage et al. 2007 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 10 18 39.61 (0.01) | 10 18 39.62 (0.03) | 10 18 39.84 | 10 18 39.84 | 10 18 39.61 | 10 18 39.84 (0.01) | 10 18 39.62 | 10 18 39.38 | ||||
| Declination | -31 08 00.72 (0.02) | -31 08 00.76 (0.05) | -31 08 00.01 | -31 08 02.00 | -31 08 00.72 | -31 08 02.03 (0.02) | -31 08 00.76 | -31 07 57.72 | ||||
| Spectral type | DA | DA | DA | DA3.0 | DA | DA3.1 | DA3.1 | |||||
| Effective temperature | [K] | 16297.0 (243) | 14990.0 (960) | 16340.0 (244) | 16167.0 (1598) | 14984.0 (84) | ||||||
| log(g) | [cgs] | 8.18 (0.04) | 7.92 (0.09) | 8.19 (0.04) | 8.12 (0.005) | |||||||
| Mass | [M☉] | 0.57 (0.07) | 0.73 (0.03) | 0.687 (0.004) | ||||||||
| log(Luminosity) | [L☉] | -2.07 (0.1) | ||||||||||
| Cooling age | [Gyr] | 0.1700 (0.05) | ||||||||||
| 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] | 22.92 (0.03) | 22.79 (0.05) | 19.64 (1) | 22.92 | 22.92 (0.03) | 22.79 (0.05) | |||||
| Distance | [pc] | 43.64 (0.06) | 43.88 (0.1) | 50.90 (3) | 50.92 (3) | 45.00 | 50.60 | 43.64 | 43.64 (0.06) | 43.88 (0.1) | ||
| Composition | H | H | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -189.8279608 (0.02) | -189.715721 (0.07) | -189.828 (0.02) | -189.715721 | |||||||
| Proper motion (declination) | [mas/yr] | 82.06831619 (0.03) | 82.10558202 (0.09) | 82.068 (0.03) | 82.10558202 | |||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 14.75 | |||||||||||
| V magnitude | 14.68 | 14.67 | ||||||||||
| R magnitude | 14.76 | 14.75 | ||||||||||
| I magnitude | 14.82 | 14.81 | ||||||||||
| J magnitude | 15.05 (0.04) | 15.05 (0.04) | 15.05 (0.04) | |||||||||
| H magnitude | 15.12 (0.08) | 15.12 (0.08) | 15.12 (0.08) | |||||||||
| K magnitude | 15.41 (0.2) | 15.41 (0.2) | 15.41 (0.2) | |||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 14.69 (0.001) | 14.71 | 14.69 | 14.69 (0.003) | 14.71 | |||||||
| BP magnitude | 14.65 (0.001) | 14.64 | 14.64 | |||||||||
| RP magnitude | 14.81 (0.001) | 14.81 | 14.81 | |||||||||
| Pan g magnitude | ||||||||||||
| Pan r magnitude | ||||||||||||
| Pan i magnitude | ||||||||||||
| Pan z magnitude | ||||||||||||
| Pan y magnitude | ||||||||||||
| 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.