All names: Gaia DR2 1285605521261175552, PB 3611, TON 197, GALEX J142340.7+313500, UBV 12635, PLX 3268.01, LAMOST J142340.77+313500.1, GCRV 64773, 2MASS J14234071+3134598, Gaia EDR3 1285605521261175552, Gaia DR3 1285605521261175552, FB 147, Ton 197, CBS 388, PG 1421+318, TIC 320244032, WD 1421+31, WD 1421+318, EGGR 108, UBV M 43120, CSI+31-14215, GEN# +6.10070197
| Parameter | Unit | Gaia EDR3 | Gaia DR2 | Stilism | Guo et al. 2015 | Gianninas et al. 2011 | Liebert et al. 2005 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 23 40.67 (0.02) | 14 23 40.68 (0.03) | 14 23 40.67 | 14 23 40.72 (0.03) | 14 23 40.73 | |||||
| Declination | 31 34 59.49 (0.03) | 31 34 59.50 (0.04) | 31 34 59.49 | 31 34 59.84 (0.03) | 31 34 55.92 | |||||
| Spectral type | DA | DA | DA | DA1.8 | DA2 | |||||
| Effective temperature | [K] | 27970.0 (417) | 27190.0 (406) | 28064.0 (354) | ||||||
| log(g) | [cgs] | 7.98 (0.05) | 7.94 (0.05) | 7.99 (0.01) | ||||||
| Mass | [M☉] | 0.63 (0.03) | 0.61 (0.03) | 0.637 (0.01) | ||||||
| log(Luminosity) | [L☉] | -1.02 | ||||||||
| Cooling age | [Gyr] | 0.0178 | ||||||||
| 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] | 8.77 (0.04) | 8.85 (0.05) | 8.77 | 8.77 (0.04) | -2.80 (8) | ||||
| Distance | [pc] | 113.99 (0.5) | 113.02 (0.7) | 112.00 | 115.00 | 113.99 | 113.99 (0.5) | |||
| Composition | H | |||||||||
| Proper motion (right ascension) | [mas/yr] | -40.65829358 (0.04) | -40.88551687 (0.1) | -40.658 (0.04) | ||||||
| Proper motion (declination) | [mas/yr] | -22.07050223 (0.04) | -22.06752583 (0.1) | -22.071 (0.04) | ||||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 15.23 | |||||||||
| V magnitude | 15.35 | 15.34 | ||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | 15.98 (0.09) | |||||||||
| H magnitude | 15.94 (0.2) | |||||||||
| K magnitude | ||||||||||
| u magnitude | 15.00 | |||||||||
| g magnitude | 15.19 | |||||||||
| r magnitude | 15.65 | |||||||||
| i magnitude | 15.99 | |||||||||
| z magnitude | ||||||||||
| G magnitude | 15.39 (0.002) | 15.41 | 15.39 | 15.39 (0.003) | ||||||
| BP magnitude | 15.26 (0.002) | 15.22 | ||||||||
| RP magnitude | 15.65 (0.002) | 15.64 | ||||||||
| Pan g magnitude | ||||||||||
| Pan r magnitude | ||||||||||
| Pan i magnitude | ||||||||||
| Pan z magnitude | ||||||||||
| Pan y magnitude | ||||||||||
| E(B-V) | 0.009 | |||||||||
* 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.