All names: EUVE J2156-41.6, WD 2153-419, GSC 07990-00521, UCAC4 242-181895, 2MASS J21563539-4142170, TIC 197684103, 2RE J2156-414, RE J2156-414, Gaia DR2 6572442909513784576, Gaia DR3 6572442909513784576, Gaia EDR3 6572442909513784576, 2RE J215635-414200, RX J2156.5-4142, GALEX J215635.2-414217, 1RXS J215635.1-414220, RBS 1798, RE J215634-414159, 2EUVE J2156-41.7, RE J2156-41, USNO-B1.0 0482-00823547, EUVE J2156-41.7, MCT 2153-4156
| Parameter | Unit | Gaia EDR3 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Koester et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 56 35.40 (0.03) | 21 56 35.40 (0.05) | 21 56 35.40 | 21 56 35.34 (0.03) | 21 56 34.80 | ||||
| Declination | -41 42 18.22 (0.03) | -41 42 18.21 (0.05) | -41 42 18.22 | -41 42 17.71 (0.03) | -41 42 18.72 | ||||
| Spectral type | DA | DA | DA | DA | |||||
| Effective temperature | [K] | 42585.0 (2031) | 46503.0 (177) | 51166.0 (3411) | |||||
| log(g) | [cgs] | 7.81 (0.2) | 7.94 (0.01) | 8.02 (0.03) | |||||
| Mass | [M☉] | 0.582 (0.09) | 0.701 (0.02) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.0031 | |||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(Li/H) | |||||||||
| log(Be/H) | |||||||||
| log(B/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(Cl/H) | |||||||||
| log(K/H) | |||||||||
| log(Sc/H) | |||||||||
| log(Ti/H) | |||||||||
| log(V/H) | |||||||||
| log(Cr/H) | |||||||||
| log(Mn/H) | |||||||||
| log(Fe/H) | |||||||||
| log(Co/H) | |||||||||
| log(Ni/H) | |||||||||
| log(Cu/H) | |||||||||
| log(Sr/H) | |||||||||
| Parallax | [mas] | 4.78 (0.05) | 5.01 (0.08) | 4.78 | 4.78 (0.05) | ||||
| Distance | [pc] | 209.02 (2) | 209.00 | 199.79 (3) | 209.02 | 209.02 (2) | |||
| Composition | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | 43.13766469 (0.04) | 42.8314719 (0.09) | 43.138 (0.04) | |||||
| Proper motion (declination) | [mas/yr] | -31.96472665 (0.04) | -32.08293939 (0.09) | -31.965 (0.04) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.59 (0.01) | ||||||||
| V magnitude | 15.89 | 15.81 (0.05) | |||||||
| R magnitude | 15.30 | ||||||||
| I magnitude | |||||||||
| J magnitude | 16.70 (0.1) | ||||||||
| H magnitude | 16.55 (0.3) | ||||||||
| K magnitude | |||||||||
| u magnitude | |||||||||
| g magnitude | |||||||||
| r magnitude | 16.05 (0.05) | ||||||||
| i magnitude | 16.41 (0.01) | ||||||||
| z magnitude | |||||||||
| G magnitude | 15.76 (0.002) | 15.78 | 15.76 | 15.76 (0.003) | |||||
| BP magnitude | 15.60 (0.002) | 15.54 | |||||||
| RP magnitude | 16.09 (0.003) | 16.09 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | 0.007 | ||||||||
* 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.