WD 1929+012
All names: 2MASS J19315695+0117439, WD 1929+012, [VKN2010] GALEX J193156.8+01174, GALEX J193156.8+011745, PSO J193156.880+011743.972, WDJ193156.93+011744.11, WD 1929+011, GALEX1931, Gaia DR2 4298029268399256704
| Parameter | Unit | MWDD H | Pan-STARRS DR1 | Gaia DR2 | Koester et al. 2014 | Gaensicke et al. 2012 | Zuckerman et al. 2011 | Melis et al. 2011 | Vennes et al. 2011 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 19 31 56.86 (0.04) | 19 31 56.95 | 19 31 56.86 | 19 31 56.45 | ||||||||
| Declination | 01 17 43.88 (0.04) | 01 17 43.97 | 01 17 43.88 | 01 17 44.16 | ||||||||
| Spectral type | DAZ | DAZ | DAZ | DAZ | DAZ | DAZ | DAZ2.4 | |||||
| Effective temperature | [K] | 20409.0 | 21457.0 (291) | 21200.0 (50) | 23470.0 | 23470.0 (300) | 20890.0 | |||||
| log(g) | [cgs] | 7.95 | 7.90 (0.09) | 7.91 (0.02) | 7.99 | 7.99 (0.05) | 7.90 | |||||
| Mass | [M☉] | 0.596 | 0.573 (0.05) | 0.63 | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0550 | ||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | -5.83 | -5.83 (0.1) | -6.11 (0.05) | |||||||||
| log(C/H) | -6.8 (0.3) | <-4.85 | <-4.15 | |||||||||
| log(N/H) | ||||||||||||
| log(O/H) | -4.1 (0.3) | -3.68 (0.1) | -3.62 (0.05) | |||||||||
| log(Na/H) | ||||||||||||
| log(Mg/H) | -4.1 (0.1) | -4.42 (0.07) | ||||||||||
| log(Al/H) | -6.2 (0.2) | <-5.85 | ||||||||||
| log(Si/H) | -4.75 (0.2) | -4.35 (0.1) | -4.24 (0.08) | |||||||||
| log(P/H) | -7 (0.3) | |||||||||||
| log(S/H) | -6.6 (0.2) | |||||||||||
| log(Sc/H) | ||||||||||||
| log(Ti/H) | <-7.00 | |||||||||||
| log(Cr/H) | -6.1 (0.3) | -5.92 (0.1) | ||||||||||
| log(Mn/H) | -6.26 (0.1) | |||||||||||
| log(Fe/H) | -4.5 (0.3) | -4.1 (0.1) | -4.43 (0.1) | |||||||||
| log(Ni/H) | -6.7 (0.3) | <-5.60 | ||||||||||
| Parallax | [mas] | 18.81 (0.05) | 18.81 (0.05) | |||||||||
| Distance | [pc] | 53.15 (0.1) | 56.00 | 53.15 (0.1) | ||||||||
| Composition | H | H | H | H | ||||||||
| Proper motion (right ascension) | [mas/yr] | -69.11881695 (0.09) | -69.11881695 | |||||||||
| Proper motion (declination) | [mas/yr] | -14.88746633 (0.07) | -14.88746633 | |||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | yes | |||||||||||
| Binarity | ||||||||||||
| B magnitude | 14.18 (0.02) | 13.90 | ||||||||||
| V magnitude | 14.20 (0.05) | 14.20 (0.02) | 14.20 | |||||||||
| R magnitude | 14.31 (0.03) | 14.20 | ||||||||||
| I magnitude | 14.37 (0.04) | |||||||||||
| J magnitude | 14.80 (0.05) | 14.66 | ||||||||||
| H magnitude | 14.80 (0.05) | 14.54 | ||||||||||
| K magnitude | 14.62 (0.05) | 14.45 | ||||||||||
| u magnitude | ||||||||||||
| g magnitude | ||||||||||||
| r magnitude | ||||||||||||
| i magnitude | ||||||||||||
| z magnitude | ||||||||||||
| G magnitude | 14.30 | 14.30 | ||||||||||
| BP magnitude | 14.14 | 14.14 | ||||||||||
| RP magnitude | 14.47 | 14.47 | ||||||||||
| Pan g magnitude | 14.13 (0.001) | |||||||||||
| Pan r magnitude | 14.50 (0.003) | |||||||||||
| Pan i magnitude | 14.82 (0.003) | |||||||||||
| Pan z magnitude | 15.08 (0.006) | |||||||||||
| Pan y magnitude | 15.24 (0.008) | |||||||||||
* Constant surface field
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