All names: 2MASS J02463078-0227227, PB 6879, [CR2000b] 627, PLX 563.02, CNS5 698, WISEA J024630.95-022728.5, EGGR 565, PSO J041.6290-02.4581, PB 9208, [HH86] 0243-026, J0246-0227, LHS 1442, SDSS J024630.92-022727.4, GALEX J024630.8-022725, GJ 1052, G 75-39, GEN# +9.80075039, SDSS J024630.91-022727.3, WD 0243-026, WDJ024630.80-022723.46, NLTT 8947, TIC 35857633, Gaia DR2 2495751967528809216, Gaia DR3 2495751967528809216, Gaia EDR3 2495751967528809216, WD 0243-025, USNO 302, HBQS 0243-0239, SDSS J024630.92-022727.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | Blouin & Xu 2022 | Kilic et al. 2020 | Blouin et al. 2019 | Gaia DR2 | Bedard et al. 2017 | Subasavage et al. 2017 | Stilism | Holberg et al. 2016 | Sion et al. 2014 | Giammichele et al. 2012 | Gianninas et al. 2011 | Kilic et al. 2006 | Koester et al. 2005 | Zuckerman et al. 2003 | Bergeron et al. 2001 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 46 31.04 (0.04) | 02 46 31.03 (0.06) | 02 46 30.80 | 02 46 30.72 | 02 46 31.04 | 02 46 30.80 (0.04) | 02 46 31.03 | 02 46 29.78 | ||||||||||||||||||
| Declination | -02 27 31.31 (0.03) | -02 27 31.06 (0.08) | -02 27 02.03 | -02 27 21.60 | -02 27 31.31 | -02 27 23.46 (0.03) | -02 27 31.06 | -02 27 03.24 | ||||||||||||||||||
| Spectral type | DAZ | DAZ | DAZ | DAZ | DAZ | DA | DAZ | DAZ | DAZ7.4 | DAZ | DA | DAZ | DAZ | DAZ | DA | DA | DA7.4 | DA7 | ||||||||
| Effective temperature | [K] | 6727.0 (13) | 6731.0 (51) | 6818.0 (10) | 6784.0 (40) | 6698.0 (14) | 6780.0 (40) | 6780.0 (76) | 6890.0 (140) | 6771.0 (156) | 6839.0 | 6770.0 (156) | 6800.0 (105) | 6798.0 | 6800.0 | 6798.0 | 6820.0 (160) | 6820.0 (160) | 6843.0 (35) | |||||||
| log(g) | [cgs] | 8.13 (0.003) | 8.13 (0.02) | 8.16 (0.003) | 8.16 (0.01) | 8.12 (0.006) | 8.16 (0.01) | 8.06 (0.1) | 8.23 (0.03) | 8.14 (0.2) | 8.18 (0.2) | 8.09 (0.1) | 8.20 | 8.20 | 8.15 | 8.18 (0.1) | 8.19 (0.1) | 8.17 (0.009) | ||||||||
| Mass | [M☉] | 0.674 (0.003) | 0.67 (0.01) | 0.675 (0.004) | 0.688 (0.009) | 0.664 (0.005) | 0.691 (0.009) | 0.73 (0.03) | 0.68 (0.1) | 0.7 (0.1) | 0.64 (0.06) | 0.7 (0.1) | 0.71 (0.1) | 0.695 (0.008) | ||||||||||||
| log(Luminosity) | [L☉] | -3.62 (0.04) | -3.62 | -3.61 (0.09) | -3.61 (0.09) | |||||||||||||||||||||
| Cooling age | [Gyr] | 2.2900 | 2.2500 | 2.2130 (0.09) | 2.4600 (0.3) | 2.3300 | 2.3100 | 2.2700 (0.8) | 2.4000 (0.8) | |||||||||||||||||
| log(H/He) | ||||||||||||||||||||||||||
| log(C/He) | ||||||||||||||||||||||||||
| log(Ca/He) | ||||||||||||||||||||||||||
| log(Ca/H) | -10.48 | -9.95 (0.08) | -9.9 | -9.9 | -9.898 | |||||||||||||||||||||
| 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] | 46.57 (0.05) | 46.57 (0.05) | 46.60 (0.1) | 46.60 (0.1) | 46.60 (0.1) | 46.60 (0.1) | 47.87 (0.5) | 47.10 (5) | 47.10 (5) | 47.10 (5) | 47.10 (5) | 46.57 | 46.57 (0.05) | 46.60 (0.1) | 47.10 (5) | ||||||||||
| Distance | [pc] | 21.47 (0.02) | 21.47 (0.02) | 21.46 (0.05) | 21.46 (0.05) | 21.46 (0.05) | 21.46 (0.05) | 20.90 (0.2) | 20.89 (0.2) | 21.23 (2) | 21.23 | 21.20 (2) | 22.00 | 21.23 (2) | 21.23 (2) | 21.47 | 21.47 (0.02) | 21.46 (0.05) | 21.23 (2) | |||||||
| Composition | H | H | H | H | H | H | H | H | H | H | H | |||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 222.4430494 (0.04) | 222.409121 (0.1) | 222.443 (0.04) | 222.409121 | |||||||||||||||||||||
| Proper motion (declination) | [mas/yr] | -490.2455318 (0.03) | -490.3226082 (0.1) | -490.246 (0.04) | -490.3226082 | |||||||||||||||||||||
| Variability | ||||||||||||||||||||||||||
| Magnetic | ||||||||||||||||||||||||||
| Bd | [MG] | |||||||||||||||||||||||||
| Infrared excess (disk) | ||||||||||||||||||||||||||
| Binarity | ||||||||||||||||||||||||||
| B magnitude | 15.90 | 15.94 | 15.94 | 15.94 | 16.34 | |||||||||||||||||||||
| V magnitude | 15.53 | 15.54 | 15.54 | 15.54 | 15.54 | 15.38 | ||||||||||||||||||||
| R magnitude | 15.27 | 15.28 | 15.28 | 15.28 | ||||||||||||||||||||||
| I magnitude | 14.99 | 15.01 | 15.01 | 15.01 | 15.09 | |||||||||||||||||||||
| J magnitude | 14.70 (0.003) | 14.68 (0.04) | 14.68 (0.04) | 14.71 | 14.71 | 14.71 | 14.68 (0.04) | |||||||||||||||||||
| H magnitude | 14.59 (0.04) | 14.59 (0.04) | 14.59 (0.04) | 14.49 | 14.49 | 14.49 | 14.59 (0.04) | |||||||||||||||||||
| K magnitude | 14.48 (0.007) | 14.48 (0.09) | 14.48 (0.09) | 14.51 | 14.51 | 14.51 | 14.48 (0.09) | |||||||||||||||||||
| u magnitude | 16.27 (0.006) | 16.27 (0.006) | 16.27 (0.006) | |||||||||||||||||||||||
| g magnitude | 15.63 (0.002) | 15.66 (0.003) | ||||||||||||||||||||||||
| r magnitude | 15.43 (0.003) | 15.43 (0.003) | ||||||||||||||||||||||||
| i magnitude | 15.40 (0.002) | 15.35 (0.003) | ||||||||||||||||||||||||
| z magnitude | 15.42 (0.002) | 15.39 (0.005) | ||||||||||||||||||||||||
| G magnitude | 15.41 (0.002) | 15.43 | 15.41 | 15.41 (0.003) | 15.43 | |||||||||||||||||||||
| BP magnitude | 15.62 (0.002) | 15.63 | 15.63 | |||||||||||||||||||||||
| RP magnitude | 15.05 (0.004) | 15.07 | 15.07 | |||||||||||||||||||||||
| Pan g magnitude | 15.63 (0.002) | 15.63 (0.002) | 15.63 (0.002) | 15.63 (0.002) | ||||||||||||||||||||||
| Pan r magnitude | 15.43 (0.004) | 15.43 (0.003) | 15.43 (0.003) | 15.43 (0.003) | ||||||||||||||||||||||
| Pan i magnitude | 15.40 (0.002) | 15.40 (0.002) | 15.40 (0.002) | 15.40 (0.002) | ||||||||||||||||||||||
| Pan z magnitude | 15.42 (0.003) | 15.42 (0.002) | 15.42 (0.002) | 15.42 (0.002) | ||||||||||||||||||||||
| Pan y magnitude | 15.45 (0.005) | 15.45 (0.004) | 15.45 (0.004) | 15.45 (0.004) | ||||||||||||||||||||||
| 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.