All names: NLTT 50392, G187-16, GALEX J210212.1+245738, TIC 126341976, G 187-16, J2102+2457, PSO J315.5513+24.9608, 21022+2457, WD 2059+247, Gaia DR3 1841254644460354688, 2MASS J21021204+2457360, LSPM J2102+2457W, Gaia EDR3 1841254644460354688, WD 2059+24, PM J21022+2457, USNO 675, WDJ210212.07+245736.37, USNO-B1.0 1149-00523112, Gaia DR2 1841254644460354688, PLX 5049.02
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Bergeron et al. 2001 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 02 12.41 (0.04) | 21 02 12.40 (0.05) | 21 02 12.40 (0.05) | 21 02 12.41 | 21 02 12.07 (0.04) | 21 02 12.40 | 21 02 10.99 | ||||||||||
| Declination | 24 57 40.13 (0.03) | 24 57 40.01 (0.05) | 24 57 40.01 (0.05) | 24 57 40.13 | 24 57 36.38 (0.03) | 24 57 40.01 | 24 57 33.84 | ||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA | DA7.8 | DA | ||||||
| Effective temperature | [K] | 6013.0 (38) | 6119.0 (13) | 5983.2 (24) | 6015.0 (35) | 6033.0 | 6290.0 (107) | 6460.0 (187) | 6070.0 (130) | 6077.0 (22) | |||||||
| log(g) | [cgs] | 8.13 (0.02) | 8.18 (0.003) | 8.13 (0.01) | 8.15 (0.01) | 8.15 | 8.56 (0.2) | 8.71 (0.3) | 8.17 (0.2) | 8.16 (0.007) | |||||||
| Mass | [M☉] | 0.667 (0.01) | 0.702 (0.004) | 0.682 (0.01) | 0.683 | 0.95 (0.1) | 1.04 (0.2) | 0.69 (0.1) | 0.687 (0.006) | ||||||||
| log(Luminosity) | [L☉] | -3.99 | -3.80 (0.1) | ||||||||||||||
| Cooling age | [Gyr] | 3.4200 | 3.2580 (0.1) | 3.2390 | 3.3200 (1) | ||||||||||||
| log(H/He) | |||||||||||||||||
| log(C/He) | |||||||||||||||||
| log(Ca/He) | |||||||||||||||||
| log(Ca/H) | |||||||||||||||||
| log(Li/H) | |||||||||||||||||
| log(Be/H) | |||||||||||||||||
| log(B/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(Cl/H) | |||||||||||||||||
| log(K/H) | |||||||||||||||||
| log(Sc/H) | |||||||||||||||||
| log(Ti/H) | |||||||||||||||||
| log(V/H) | |||||||||||||||||
| log(Cr/H) | |||||||||||||||||
| log(Mn/H) | |||||||||||||||||
| log(Fe/H) | |||||||||||||||||
| log(Co/H) | |||||||||||||||||
| log(Ni/H) | |||||||||||||||||
| log(Cu/H) | |||||||||||||||||
| log(Sr/H) | |||||||||||||||||
| Parallax | [mas] | 35.67 (0.05) | 35.67 (0.05) | 35.76 (0.06) | 35.76 (0.06) | 35.76 (0.06) | 35.76 (0.06) | 36.10 (4) | 36.10 (4) | 35.67 | 35.67 (0.05) | 35.76 (0.06) | 36.10 (4) | ||||
| Distance | [pc] | 28.03 (0.04) | 28.03 (0.04) | 27.96 (0.05) | 27.96 (0.05) | 27.96 (0.05) | 27.96 (0.05) | 27.70 (3) | 20.00 | 27.70 (3) | 28.03 | 28.03 (0.04) | 27.96 (0.05) | 27.70 (3) | |||
| Composition | H | H | H | H | H | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 295.6658365 (0.05) | 295.5747449 (0.1) | 295.666 (0.05) | 295.5747449 | ||||||||||||
| Proper motion (declination) | [mas/yr] | 234.5257106 (0.04) | 234.6317064 (0.09) | 234.526 (0.04) | 234.6317064 | ||||||||||||
| Variability | |||||||||||||||||
| Magnetic | |||||||||||||||||
| Bd | [MG] | ||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||
| Binarity | |||||||||||||||||
| B magnitude | 17.16 | 17.07 | |||||||||||||||
| V magnitude | 16.57 | ||||||||||||||||
| R magnitude | 16.26 | 16.00 | |||||||||||||||
| I magnitude | 15.93 | ||||||||||||||||
| J magnitude | 15.51 (0.007) | 15.52 (0.06) | 15.45 | 15.52 (0.06) | |||||||||||||
| H magnitude | 15.21 (0.08) | 15.21 (0.08) | 15.29 | 15.21 (0.08) | |||||||||||||
| K magnitude | 15.06 (0.1) | 15.06 (0.1) | 15.26 | 15.06 (0.1) | |||||||||||||
| u magnitude | 17.59 (0.01) | 17.61 (0.01) | |||||||||||||||
| g magnitude | 16.76 (0.004) | 16.77 (0.004) | |||||||||||||||
| r magnitude | 16.45 (0.003) | 16.42 (0.004) | |||||||||||||||
| i magnitude | 16.33 (0.001) | 16.31 (0.004) | |||||||||||||||
| z magnitude | 16.32 (0.001) | 16.26 (0.008) | |||||||||||||||
| G magnitude | 16.44 (0.003) | 16.45 | 16.45 | 16.44 | 16.44 (0.003) | 16.45 | |||||||||||
| BP magnitude | 16.73 (0.003) | 16.73 | 16.73 | ||||||||||||||
| RP magnitude | 15.97 (0.003) | 15.98 | 15.98 | ||||||||||||||
| Pan g magnitude | 16.76 (0.003) | 16.76 (0.004) | 16.76 (0.004) | ||||||||||||||
| Pan r magnitude | 16.45 (0.003) | 16.45 (0.003) | 16.45 (0.003) | ||||||||||||||
| Pan i magnitude | 16.33 (0.002) | 16.33 (0.001) | 16.33 (0.001) | ||||||||||||||
| Pan z magnitude | 16.32 (0.001) | 16.32 (0.001) | 16.32 (0.001) | ||||||||||||||
| Pan y magnitude | 16.31 (0.005) | 16.31 (0.006) | 16.32 (0.006) | ||||||||||||||
| 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.