All names: MCT 2306-2726, UCAC4 315-248239, Gaia EDR3 2379359556397873664, WD 2306-274, Gaia DR3 2379359556397873664, EC 23061-2726, GALEX J230852.3-271028, Ton S 86, 2MASS J23085232-2710278, Gaia DR2 2379359556397873664, USNO-B1.0 0628-01168364
| Parameter | Unit | Gaia EDR3 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 08 52.39 (0.04) | 23 08 52.39 (0.07) | 23 08 52.39 | 23 08 52.36 (0.04) | 23 08 51.60 | ||||
| Declination | -27 10 29.32 (0.04) | -27 10 29.30 (0.06) | -27 10 29.32 | -27 10 28.47 (0.04) | -27 10 19.56 | ||||
| Spectral type | DA | DA | DA | DA3.0 | DA | ||||
| Effective temperature | [K] | 19144.0 (715) | 16960.0 (348) | 16744.0 (257) | |||||
| log(g) | [cgs] | 7.53 (0.1) | 7.33 (0.06) | 7.23 (0.01) | |||||
| Mass | [M☉] | 0.401 (0.04) | 0.37 (0.02) | 0.302 (0.005) | |||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.0335 | |||||||
| 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] | 6.13 (0.05) | 6.24 (0.08) | 6.13 | 6.13 (0.05) | ||||
| Distance | [pc] | 163.26 (1) | 163.00 | 160.29 (2) | 151.00 | 163.26 | 163.26 (1) | ||
| Composition | H | H | |||||||
| Proper motion (right ascension) | [mas/yr] | 26.0269609 (0.05) | 25.98944344 (0.1) | 26.027 (0.05) | |||||
| Proper motion (declination) | [mas/yr] | -53.1495939 (0.05) | -52.84639997 (0.1) | -53.15 (0.05) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.90 | ||||||||
| V magnitude | |||||||||
| R magnitude | 16.27 (0.3) | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.44 (0.1) | ||||||||
| H magnitude | 16.36 (0.2) | ||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | |||||||||
| i magnitude | |||||||||
| z magnitude | |||||||||
| G magnitude | 16.05 (0.003) | 16.07 | 16.05 | 16.05 (0.003) | |||||
| BP magnitude | 15.99 (0.003) | 15.97 | |||||||
| RP magnitude | 16.20 (0.005) | 16.19 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.005 | ||||||||
* 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.