GD 391
All names: 1SWASP J202956.18+391332.3, WD 2028+39, 2RE J202953+391358, LSPM J2029+3913, GD 391, UCAC2 45558798, 20299+3913E, WDJ202956.18+391332.20, [CL2016] GD391 59, 1RXS J202956.4+391330, USNO-B1.0 1292-00413147, Gaia DR2 2064272612307218176, PM J20299+3913E, 2MASS J20295616+3913320, uvby98 610060391, RE J2029+391, EGGR 243, WD 2028+390, EGGR 397, Gaia EDR3 2064272612307218176, RX J2029.9+3913, LP 284-5, NLTT 49359, Gaia DR3 2064272612307218176, RE J202954+391353, RE J2029+39, 2RE J2029+391, TIC 16200170, 2028+390, EUVE J2029+39.2, UCAC4 647-088856, KPD 2028+3903, 2EUVE J2029+39.2
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Leggett et al. 2018 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 20 29 56.38 (0.02) | 20 29 56.38 (0.03) | 20 29 56.38 | 20 29 56.18 (0.02) | 20 29 56.38 | 20 29 55.51 | |||||||
| Declination | 39 13 33.66 (0.02) | 39 13 33.61 (0.03) | 39 13 33.66 | 39 13 32.20 (0.02) | 39 13 33.61 | 39 13 30.72 | |||||||
| Spectral type | DA2.0 | DA | DA | DA | DA | DA2.0 | DA2 | ||||||
| Effective temperature | [K] | 25702.0 (1747) | 22555.0 | 24970.0 (380) | 24830.0 (383) | 26824.0 (228) | |||||||
| log(g) | [cgs] | 7.97 (0.06) | 7.88 | 8.04 (0.05) | 8.06 (0.05) | 8.09 (0.008) | |||||||
| Mass | [M☉] | 0.622 (0.04) | 0.565 | 0.65 (0.03) | 0.67 (0.03) | 0.689 (0.006) | |||||||
| log(Luminosity) | [L☉] | -1.24 | |||||||||||
| Cooling age | [Gyr] | 0.0180 (0.006) | 0.0290 | ||||||||||
| 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] | 24.97 (0.03) | 23.83 (0.2) | 24.96 (0.04) | 24.97 | 24.97 (0.03) | 24.96 (0.04) | ||||||
| Distance | [pc] | 40.05 (0.04) | 41.96 (0.4) | 40.06 (0.06) | 41.00 (2) | 38.00 | 40.05 | 40.05 (0.04) | 40.06 (0.06) | ||||
| Composition | H | H | H | ||||||||||
| Proper motion (right ascension) | [mas/yr] | 146.8372423 (0.03) | 146.7604539 (0.06) | 146.837 (0.03) | 146.7604539 | ||||||||
| Proper motion (declination) | [mas/yr] | 91.16471771 (0.03) | 91.20617291 (0.06) | 91.165 (0.03) | 91.20617291 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 13.22 (0.005) | ||||||||||||
| V magnitude | 13.37 (0.003) | ||||||||||||
| R magnitude | 13.48 (0.007) | ||||||||||||
| I magnitude | 13.62 (0.003) | ||||||||||||
| J magnitude | 13.92 (0.03) | ||||||||||||
| H magnitude | 14.01 (0.04) | ||||||||||||
| K magnitude | 14.35 (0.09) | ||||||||||||
| u magnitude | |||||||||||||
| g magnitude | 13.15 (0.04) | ||||||||||||
| r magnitude | 13.54 (0) | ||||||||||||
| i magnitude | 13.88 (0.03) | ||||||||||||
| z magnitude | |||||||||||||
| G magnitude | 13.37 (0.0009) | 13.39 | 13.37 | 13.37 (0.003) | 13.39 | ||||||||
| BP magnitude | 13.26 (0.0009) | 13.22 | 13.22 | ||||||||||
| RP magnitude | 13.61 (0.0006) | 13.61 | 13.61 | ||||||||||
| Pan g magnitude | 13.23 (0.004) | ||||||||||||
| Pan r magnitude | 13.59 (7e-05) | ||||||||||||
| Pan i magnitude | 13.94 (0.004) | ||||||||||||
| Pan z magnitude | 14.21 (0.003) | ||||||||||||
| Pan y magnitude | 14.38 (0.002) | ||||||||||||
| E(B-V) | 0.003 | ||||||||||||
* Constant surface field
Special notes:
Spectra
Controls
Normalize at:
Normalize by mean flux
Range:
x:
to
y:
to
Spectra available:
Spectra without link are available upon request
Absorption lines
Photometric filters
BVRI
ugriz
Photometric fit
