All names: TIC 435194207, Gaia DR3 2811363550466857344, LP 522-34, USNO-B1.0 1029-00765764, WDS J23205+1259A, J2320+1258, WDJ232031.30+125814.59, WD 2318+126, 2MASS J23203127+1258144, ** LDS 5070A, LSPM J2320+1258W, NLTT 56546, SDSS J232031.42+125814.9, KUV 23180+1242, SDSS J232031.42+125815.0, GALEX J232031.4+125814, Gaia EDR3 2811363550466857344, Gaia DR2 2811363550466857344
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 20 31.52 (0.05) | 23 20 31.51 (0.08) | 23 20 31.52 | 23 20 31.30 (0.05) | 23 20 31.51 | 23 20 31.08 | ||||||||
| Declination | 12 58 15.20 (0.04) | 12 58 15.18 (0.05) | 12 58 15.20 | 12 58 14.59 (0.04) | 12 58 15.18 | 12 58 08.40 | ||||||||
| Spectral type | DA | DA | DA | DA | DA | DA3.6 | DA | |||||||
| Effective temperature | [K] | 13170.0 (102) | 13175.0 (104) | 12870.0 | 14020.0 (379) | 13788.0 (59) | 13705.0 (214) | |||||||
| log(g) | [cgs] | 7.98 (0.008) | 7.97 (0.01) | 7.95 | 8.03 (0.05) | 7.80 (0.008) | 8.02 (0.01) | |||||||
| Mass | [M☉] | 0.595 (0.007) | 0.591 (0.009) | 0.579 | 0.63 (0.03) | 0.618 (0.01) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||||
| Cooling age | [Gyr] | 0.2882 | ||||||||||||
| 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] | 11.11 (0.06) | 11.06 (0.1) | 11.11 | 11.11 (0.06) | 11.06 (0.1) | ||||||||
| Distance | [pc] | 90.02 (0.5) | 90.40 (0.8) | 97.00 | 90.02 | 90.02 (0.5) | 90.40 (0.8) | |||||||
| Composition | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 198.58915 (0.07) | 198.4394303 (0.1) | 198.589 (0.07) | 198.4394303 | |||||||||
| Proper motion (declination) | [mas/yr] | 38.02004125 (0.05) | 38.20857315 (0.09) | 38.02 (0.05) | 38.20857315 | |||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | yes | |||||||||||||
| B magnitude | 16.10 | 15.90 | ||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 16.10 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.58 (0.1) | |||||||||||||
| H magnitude | ||||||||||||||
| K magnitude | ||||||||||||||
| u magnitude | 16.56 (0.007) | 16.56 (0.007) | ||||||||||||
| g magnitude | 16.16 (0.003) | 16.16 (0.003) | ||||||||||||
| r magnitude | 16.39 (0.004) | 16.39 (0.004) | ||||||||||||
| i magnitude | 16.61 (0.005) | 16.61 (0.005) | ||||||||||||
| z magnitude | 16.84 (0.01) | 16.84 (0.01) | ||||||||||||
| G magnitude | 16.29 (0.004) | 16.30 | 16.29 | 16.29 (0.003) | 16.30 | |||||||||
| BP magnitude | 16.27 (0.004) | 16.27 | 16.27 | |||||||||||
| RP magnitude | 16.35 (0.005) | 16.36 | 16.36 | |||||||||||
| Pan g magnitude | 16.20 (0.002) | |||||||||||||
| Pan r magnitude | 16.41 (0.002) | |||||||||||||
| Pan i magnitude | 16.67 (0.005) | |||||||||||||
| Pan z magnitude | 16.87 (0.004) | |||||||||||||
| Pan y magnitude | 17.03 (0.007) | |||||||||||||
| E(B-V) | 0.008 | |||||||||||||
* 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.