All names: Gaia DR2 2811321837744375936, Gaia EDR3 2811321837744375936, WD 2316+123, SDSS J231845.16+123602.6, Gaia DR3 2811321837744375936, GALEX J231845.1+123603, WDJ231845.10+123602.77, SDSS J231845.17+123602.7, KUV 23162+1220, TIC 435187907, KUV 813-14, J2318+1236, 2MASS J23184510+1236028
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Vincent et al. 2020 | Kilic et al. 2020 | Gaia DR2 | Stilism | Ferrario et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 18 45.22 (0.04) | 23 18 45.21 (0.06) | 23 18 45.22 | 23 18 45.10 (0.04) | 23 18 45.21 | 23 18 45.05 | |||||||
| Declination | 12 36 02.50 (0.03) | 12 36 02.51 (0.04) | 12 36 02.50 | 12 36 02.77 (0.03) | 12 36 02.51 | 12 36 01.08 | |||||||
| Spectral type | DAH | DAH | DA | DA: | DAP4 | DA | |||||||
| Effective temperature | [K] | 11616.0 (97) | 11710.0 (67) | 11615.0 (96) | 11000.0 (1000) | 11875.0 (111) | |||||||
| log(g) | [cgs] | 8.40 (0.007) | 8.40 (0.008) | 8.00 (0) | 8.43 (0.009) | ||||||||
| Mass | [M☉] | 0.859 (0.007) | 0.866 (0.005) | 0.86 (0.007) | 0.878 (0.008) | ||||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | ||||||||||||
| 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] | 24.81 (0.04) | 24.87 (0.08) | 24.81 | 24.81 (0.04) | 24.87 (0.08) | |||||||
| Distance | [pc] | 40.31 (0.07) | 40.20 (0.1) | 40.31 | 40.31 (0.07) | 40.20 (0.1) | |||||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 105.9903443 (0.05) | 105.9796851 (0.1) | 105.99 (0.04) | 105.9796851 | ||||||||
| Proper motion (declination) | [mas/yr] | -16.83599581 (0.03) | -16.84042227 (0.08) | -16.836 (0.03) | -16.84042227 | ||||||||
| Variability | NOV | ||||||||||||
| Magnetic | yes | ||||||||||||
| Bd | [MG] | 45 (5) | |||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 15.54 | ||||||||||||
| V magnitude | 15.38 | ||||||||||||
| R magnitude | |||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.47 (0.06) | ||||||||||||
| H magnitude | 15.72 (0.1) | ||||||||||||
| K magnitude | 15.14 (0.2) | ||||||||||||
| u magnitude | 15.65 (0.005) | 15.65 (0.005) | |||||||||||
| g magnitude | 15.36 (0.003) | 15.36 (0.003) | |||||||||||
| r magnitude | 15.51 (0.003) | 15.51 (0.003) | |||||||||||
| i magnitude | 15.71 (0.003) | 15.71 (0.003) | |||||||||||
| z magnitude | 15.90 (0.007) | 15.90 (0.007) | |||||||||||
| G magnitude | 15.42 (0.002) | 15.43 | 15.42 | 15.42 (0.003) | 15.43 | ||||||||
| BP magnitude | 15.43 (0.002) | 15.42 | 15.42 | ||||||||||
| RP magnitude | 15.40 (0.002) | 15.41 | 15.41 | ||||||||||
| Pan g magnitude | 15.37 (0.01) | ||||||||||||
| Pan r magnitude | 15.52 (0.002) | ||||||||||||
| Pan i magnitude | 15.74 (0.002) | ||||||||||||
| Pan z magnitude | 15.89 (0.004) | ||||||||||||
| Pan y magnitude | 16.03 (0.005) | ||||||||||||
| E(B-V) | 0.002 | ||||||||||||
* 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.