All names: LTT 18524, UBV 18527, WISEA J212657.84+733840.9, SDSS J212657.71+733843.3, GJ 9743, TIC 323139945, GEN# +9.80261043, LSPM J2126+7338, WD 2126+73, uvby98 980261043, WD 2126+734, WDJ212657.66+733844.66, Gaia EDR3 2274076297221555968, CNS5 5281, G261-43A, G 261-43, CSI+73-21267, KUV 21267+7326, Gaia DR3 2274076297221555968, EGGR 144, Gaia DR2 2274076297221555968, UCAC3 328-58274, ASCC 58117, G 263-3, UBV M 42798, PLX 5188.01, WDS J21270+7339A, LAWD 86, GSC 04473-00342, PM J21269+7338, GJ 828.5, AC +73 8031, NLTT 51355, 2MASS J21265770+7338444, GCRV 72233, USNO 267, AC +73 8031-0, ** ZUC 15A, USNO-B1.0 1636-00114312, G261-43, J2126+7338, 21269+7338
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Kilic et al. 2020 | McCleery et al. 2020 | MWDD H | Gaia DR2 | Bedard et al. 2017 | Stilism | Holberg et al. 2016 | Limoges et al. 2015 | Sion et al. 2014 | Giammichele et al. 2012 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 26 57.87 (0.02) | 21 26 57.86 (0.03) | 21 26 57.86 (0.03) | 21 26 57.60 | 21 26 57.87 | 21 26 57.66 (0.02) | 21 26 57.86 | 21 26 55.68 | ||||||||||||
| Declination | 73 38 39.64 (0.02) | 73 38 39.80 (0.03) | 73 38 39.80 (0.03) | 73 38 42.00 | 73 38 39.64 | 73 38 44.67 (0.02) | 73 38 39.80 | 73 38 54.24 | ||||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA3.8 | DA | DA | DA | DA3.1 | DA4 | ||||||
| Effective temperature | [K] | 15554.0 (270) | 15127.0 (281) | 15553.0 (270) | 15039.6 (257) | 13873.0 | 16040.0 (236) | 16104.0 (237) | 15950.0 (234) | 16104.0 | 16104.0 (237) | 16110.0 (236) | 15993.0 (132) | |||||||
| log(g) | [cgs] | 7.94 (0.01) | 7.89 (0.02) | 7.95 (0.01) | 7.89 (0.02) | 7.82 | 7.99 (0.04) | 7.97 (0.04) | 7.97 (0.04) | 7.97 (0.04) | 7.97 (0.04) | 7.96 (0.007) | ||||||||
| Mass | [M☉] | 0.582 (0.01) | 0.552 (0.01) | 0.583 (0.01) | 0.511 | 0.58 (0.08) | 0.6 (0.02) | 0.6 (0.03) | 0.6 (0.03) | 0.6 (0.03) | 0.594 (0.005) | |||||||||
| log(Luminosity) | [L☉] | -1.99 | -1.97 | |||||||||||||||||
| Cooling age | [Gyr] | 0.1910 | 0.1500 | 0.1500 | ||||||||||||||||
| 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] | 44.99 (0.03) | 44.99 (0.03) | 45.04 (0.04) | 45.04 (0.04) | 47.10 (2) | 47.10 (2) | 47.10 (2) | 44.99 | 44.99 (0.03) | 45.04 (0.04) | 43.00 (7) | ||||||||
| Distance | [pc] | 22.23 (0.01) | 22.23 (0.01) | 22.20 (0.02) | 22.20 (0.02) | 21.20 (1) | 21.23 (1) | 21.20 (1) | 21.23 | 21.20 (0.8) | 22.00 | 22.23 | 22.23 (0.01) | 22.20 (0.02) | 23.26 (4) | |||||
| Composition | H | H | H | H | H | H | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 55.3384477 (0.03) | 55.13691143 (0.07) | 55.338 (0.03) | 55.13691143 | |||||||||||||||
| Proper motion (declination) | [mas/yr] | -314.1996029 (0.03) | -313.9527028 (0.06) | -314.2 (0.03) | -313.9527028 | |||||||||||||||
| Variability | NOV | |||||||||||||||||||
| Magnetic | ||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||
| Binarity | DDr | yes | ||||||||||||||||||
| B magnitude | 12.80 | |||||||||||||||||||
| V magnitude | 12.88 | 12.82 | 12.83 | |||||||||||||||||
| R magnitude | 13.30 | |||||||||||||||||||
| I magnitude | ||||||||||||||||||||
| J magnitude | 13.10 (0.03) | |||||||||||||||||||
| H magnitude | 13.16 (0.04) | |||||||||||||||||||
| K magnitude | 13.17 (0.04) | |||||||||||||||||||
| u magnitude | 13.31 (0.004) | 13.18 (0.003) | ||||||||||||||||||
| g magnitude | 14.29 (0.009) | 12.94 (0.003) | ||||||||||||||||||
| r magnitude | 14.27 (0.01) | 13.30 (0.006) | ||||||||||||||||||
| i magnitude | 13.54 (0.003) | 13.44 (0.003) | ||||||||||||||||||
| z magnitude | 13.58 (0.004) | 13.51 (0.004) | ||||||||||||||||||
| G magnitude | 12.89 (0.001) | 12.90 | 12.90 | 12.89 | 12.89 (0.003) | 12.90 | ||||||||||||||
| BP magnitude | 12.84 (0.001) | 12.82 | 12.82 | |||||||||||||||||
| RP magnitude | 12.99 (0.002) | 13.00 | 13.00 | |||||||||||||||||
| Pan g magnitude | 12.82 (0.01) | |||||||||||||||||||
| Pan r magnitude | 13.05 (0.02) | |||||||||||||||||||
| Pan i magnitude | 13.32 (0.001) | |||||||||||||||||||
| Pan z magnitude | 13.56 (0.005) | |||||||||||||||||||
| Pan y magnitude | 13.72 (0.004) | |||||||||||||||||||
| 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.