WD 2046-220
All names: GALEX J204946.2-215442, BPS CS 22880-0124, Gaia DR2 6808699474099687808, Gaia DR3 6808699474099687808, WD 2046-220, USNO-B1.0 0680-00989848, Gaia EDR3 6808699474099687808, BPS CS 22880-12, EC 20468-2205, 2MASS J20494625-2154434, TIC 76963159
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | Gaia DR2 | Stilism | Koester et al. 2014 | Gianninas et al. 2011 | Koester et al. 2009 | Vincent et al. 2024 | Simbad | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 49 46.33 (0.04) | 20 49 46.32 (0.05) | 20 49 46.33 | 20 49 46.25 (0.04) | 20 49 45.82 | |||||||
| Declination | -21 54 43.51 (0.02) | -21 54 43.50 (0.03) | -21 54 43.51 | -21 54 43.41 (0.02) | -21 54 36.36 | |||||||
| Spectral type | DA | DA | DA | DA2.1 | DA | |||||||
| Effective temperature | [K] | 21298.0 | 24362.0 (331) | 24080.0 (407) | 23413.0 (37) | 22939.0 (296) | ||||||
| log(g) | [cgs] | 7.85 | 7.96 (0.09) | 8.01 (0.05) | 7.83 (0.005) | 7.95 (0.01) | ||||||
| Mass | [M☉] | 0.548 | 0.612 (0.05) | 0.64 (0.03) | 0.601 (0.009) | |||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0360 | ||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| log(C/H) | <-7.60 | |||||||||||
| log(N/H) | ||||||||||||
| log(O/H) | ||||||||||||
| log(Na/H) | ||||||||||||
| log(Mg/H) | ||||||||||||
| log(Al/H) | ||||||||||||
| log(Si/H) | -7.6 (0.1) | |||||||||||
| 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] | 9.85 (0.05) | 9.76 (0.06) | 9.85 | 9.85 (0.05) | |||||||
| Distance | [pc] | 101.49 (0.5) | 102.45 (0.7) | 101.00 | 101.49 | 101.49 (0.5) | ||||||
| Composition | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 67.3183166 (0.05) | 67.21172731 (0.1) | 67.318 (0.05) | ||||||||
| Proper motion (declination) | [mas/yr] | -5.992626208 (0.04) | -5.979400729 (0.07) | -5.993 (0.04) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | 15.32 | |||||||||||
| V magnitude | 15.37 (0.05) | 15.48 | 15.48 | |||||||||
| R magnitude | 15.30 | |||||||||||
| I magnitude | ||||||||||||
| J magnitude | 16.10 (0.08) | |||||||||||
| H magnitude | 16.20 (0.3) | |||||||||||
| K magnitude | ||||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 15.48 (0.002) | 15.50 | 15.48 | 15.48 (0.003) | ||||||||
| BP magnitude | 15.37 (0.002) | 15.33 | ||||||||||
| RP magnitude | 15.70 (0.003) | 15.69 | ||||||||||
| Pan g magnitude | 15.33 (0.003) | |||||||||||
| Pan r magnitude | 15.70 (0.002) | |||||||||||
| Pan i magnitude | 16.03 (0.002) | |||||||||||
| Pan z magnitude | 16.29 (0.004) | |||||||||||
| Pan y magnitude | 16.48 (0.004) | |||||||||||
| E(B-V) | 0.004 | |||||||||||
* Constant surface field
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