All names: EC 21136-3705, MCT 2113-3705, 2MASS J21164867-3652328, WDJ211648.65-365232.93, GALEX J211648.7-365233, Gaia EDR3 6776236530729179136, TIC 159745342, Gaia DR3 6776236530729179136, Gaia DR2 6776236530729179136, USNO-A2.0 0525-43172183, USNO-B1.0 0531-00903043
| Parameter | Unit | Gaia EDR3 | Bergeron et al. 2021 | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 16 48.85 (0.05) | 21 16 48.85 | 21 16 48.85 | 21 16 48.65 (0.05) | 21 16 48.85 | |||
| Declination | -36 52 33.58 (0.03) | -36 52 33.56 | -36 52 33.58 | -36 52 32.93 (0.03) | -36 52 33.56 | |||
| Spectral type | DC | DC | DC | |||||
| Effective temperature | [K] | 9590.0 (95) | 9968.0 (88) | |||||
| log(g) | [cgs] | 7.83 (0.02) | 7.93 (0.01) | |||||
| Mass | [M☉] | 0.484 (0.009) | 0.539 (0.01) | |||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | 0.5813 | ||||||
| log(H/He) | -4.4 | |||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| log(N/He) | ||||||||
| log(O/He) | ||||||||
| log(Na/He) | ||||||||
| log(Mg/He) | ||||||||
| log(Al/He) | ||||||||
| log(Si/He) | ||||||||
| log(P/He) | ||||||||
| log(S/He) | ||||||||
| log(Cl/He) | ||||||||
| log(Sc/He) | ||||||||
| log(Ti/He) | ||||||||
| log(V/He) | ||||||||
| log(Cr/He) | ||||||||
| log(Mn/He) | ||||||||
| log(Fe/He) | ||||||||
| log(Co/He) | ||||||||
| log(Ni/He) | ||||||||
| log(Cu/He) | ||||||||
| log(Zn/He) | ||||||||
| log(Ga/He) | ||||||||
| log(Ge/He) | ||||||||
| log(Sr/He) | ||||||||
| Parallax | [mas] | 13.96 (0.06) | 13.95 (0.1) | 13.96 | 13.96 (0.06) | 13.95 (0.1) | ||
| Distance | [pc] | 71.65 (0.3) | 71.00 | 71.66 (0.5) | 71.65 | 71.65 (0.3) | 71.66 (0.5) | |
| Composition | He | |||||||
| Proper motion (right ascension) | [mas/yr] | 153.5586565 (0.06) | 153.6254624 (0.1) | 153.559 (0.06) | 153.6254624 | |||
| Proper motion (declination) | [mas/yr] | -40.56201925 (0.06) | -40.49281659 (0.1) | -40.562 (0.06) | -40.49281659 | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | 16.50 (0.3) | |||||||
| V magnitude | 16.57 | |||||||
| R magnitude | 16.30 | |||||||
| I magnitude | ||||||||
| J magnitude | 16.63 (0.1) | |||||||
| H magnitude | 16.46 (0.3) | |||||||
| K magnitude | ||||||||
| u magnitude | ||||||||
| g magnitude | ||||||||
| r magnitude | ||||||||
| i magnitude | ||||||||
| z magnitude | ||||||||
| G magnitude | 16.49 (0.003) | 16.51 | 16.49 | 16.49 (0.003) | 16.51 | |||
| BP magnitude | 16.52 (0.003) | 16.49 | 16.49 | |||||
| RP magnitude | 16.43 (0.004) | 16.44 | 16.44 | |||||
| Pan g magnitude | ||||||||
| Pan r magnitude | ||||||||
| Pan i magnitude | ||||||||
| Pan z magnitude | ||||||||
| Pan y magnitude | ||||||||
| E(B-V) | 0.004 | |||||||
* 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.