All names: WDJ231525.93+683124.71, Gaia DR2 2214678175128464256, TIC 422609145, GALEX J231526.1+683124, EGGR 455, WD 2313+682, USNO-B1.0 1585-00221901, GD 557, J2315+6831, Gaia EDR3 2214678175128464256, WD 2313+68, 2MASS J23152590+6831245, UCAC4 793-042602, Gaia DR3 2214678175128464256
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 15 26.26 (0.03) | 23 15 26.25 (0.03) | 23 15 26.26 | 23 15 25.93 (0.03) | 23 15 26.25 | 23 15 24.46 | |||||||
| Declination | 68 31 24.02 (0.03) | 68 31 24.04 (0.04) | 68 31 24.02 | 68 31 24.71 (0.03) | 68 31 24.04 | 68 31 22.08 | |||||||
| Spectral type | DA | DA | DA | DA5.6 | DA5 | ||||||||
| Effective temperature | [K] | 8922.0 (34) | 8771.0 | 8541.0 | 9060.0 (132) | 8750.0 (49) | |||||||
| log(g) | [cgs] | 8.15 (0.006) | 8.11 | 8.02 | 8.48 (0.06) | 8.10 (0.009) | |||||||
| Mass | [M☉] | 0.687 (0.005) | 0.663 | 0.59 | 0.9 (0.04) | 0.659 (0.008) | |||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 1.0400 | 0.9969 | 0.9669 | |||||||||
| 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] | 22.93 (0.03) | 22.90 (0.04) | 22.90 (0.04) | 22.93 | 22.93 (0.03) | 22.90 (0.04) | ||||||
| Distance | [pc] | 43.60 (0.06) | 43.67 (0.08) | 43.66 (0.07) | 38.00 | 43.60 | 43.60 (0.06) | 43.66 (0.07) | |||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 112.6150813 (0.04) | 112.6038268 (0.07) | 112.615 (0.04) | 112.6038268 | ||||||||
| Proper motion (declination) | [mas/yr] | -43.19264403 (0.03) | -43.14119324 (0.06) | -43.193 (0.03) | -43.14119324 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 16.30 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 16.04 (0.2) | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.91 (0.1) | 15.91 (0.1) | |||||||||||
| H magnitude | 15.77 (0.2) | 15.77 (0.2) | |||||||||||
| K magnitude | 15.39 (0.2) | 15.39 (0.2) | |||||||||||
| u magnitude | |||||||||||||
| g magnitude | |||||||||||||
| r magnitude | |||||||||||||
| i magnitude | |||||||||||||
| z magnitude | |||||||||||||
| G magnitude | 15.96 (0.002) | 15.98 | 15.96 | 15.96 (0.003) | 15.98 | ||||||||
| BP magnitude | 16.06 (0.002) | 16.05 | 16.05 | ||||||||||
| RP magnitude | 15.80 (0.002) | 15.79 | 15.79 | ||||||||||
| Pan g magnitude | 16.05 (0.003) | 16.05 (0.003) | |||||||||||
| Pan r magnitude | 16.04 (0.002) | 16.04 (0.002) | |||||||||||
| Pan i magnitude | 16.13 (0.002) | 16.13 (0.002) | |||||||||||
| Pan z magnitude | 16.23 (0.003) | 16.23 (0.003) | |||||||||||
| Pan y magnitude | 16.33 (0.006) | 16.33 (0.005) | |||||||||||
| E(B-V) | 0.003 | ||||||||||||
* 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.