EGGR 531
All names: NLTT 19228, 08167+2137, EGGR 531, SDSS J081642.01+213734.1, USNO-B1.0 1116-00174700, SDSS J081642.01+213734.2, J0816+2137, Gaia DR2 676031052142751488, GALEX J081642.0+213734, Gaia EDR3 676031052142751488, GEN# +9.80040015, G40-15, LSPM J0816+2137, G 40-15, TIC 82354635, PM J08167+2137, PSO J124.1748+21.6253, 2MASS J08164206+2137365, WDJ081642.04+213735.82, Gaia DR3 676031052142751488, WD 0813+217
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | O'Brien et al. 2024 | Caron et al. 2023 | Kilic et al. 2020 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | Gaia DR2 | Stilism | Limoges et al. 2015 | Gianninas et al. 2011 | Bergeron et al. 1997 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 16 41.92 (0.06) | 08 16 41.92 (0.07) | 08 16 41.92 (0.07) | 08 16 41.92 | 08 16 42.04 (0.06) | 08 16 41.92 | 08 16 41.83 | ||||||||||||
| Declination | 21 37 29.53 (0.04) | 21 37 29.73 (0.05) | 21 37 29.73 (0.05) | 21 37 29.53 | 21 37 35.82 (0.04) | 21 37 29.73 | 21 37 54.48 | ||||||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DA | DA | DA | DA | DA8.3 | DA8 | |||||||
| Effective temperature | [K] | 6153.0 (28) | 6129.0 (53) | 6193.0 (11) | 6167.0 (12) | 6067.2 (44) | 6140.0 (45) | 6152.0 | 6250.0 (116) | 6050.0 (173) | 6100.0 (130) | 6238.0 (42) | |||||||
| log(g) | [cgs] | 7.96 (0.008) | 7.95 (0.03) | 7.98 (0.005) | 7.97 (0.006) | 7.93 (0.03) | 7.96 (0.02) | 7.97 | 8.10 (0.2) | 7.40 (0.4) | 8.00 (0) | 8.01 (0.01) | |||||||
| Mass | [M☉] | 0.566 (0.007) | 0.561 (0.02) | 0.579 (0.005) | 0.573 (0.005) | 0.566 (0.01) | 0.569 | 0.65 (0.1) | 0.33 (0.1) | 0.59 | 0.593 (0.01) | ||||||||
| log(Luminosity) | [L☉] | -3.71 | -3.70 | ||||||||||||||||
| Cooling age | [Gyr] | 2.1000 | 1.9810 (0.08) | 1.9830 | 2.2300 | ||||||||||||||
| 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] | 25.41 (0.07) | 25.41 (0.07) | 25.39 (0.09) | 25.39 (0.09) | 25.39 (0.09) | 25.39 (0.09) | 25.41 | 25.41 (0.07) | 25.39 (0.09) | |||||||||
| Distance | [pc] | 39.35 (0.1) | 39.35 (0.1) | 39.39 (0.1) | 39.39 (0.1) | 39.39 (0.1) | 39.39 (0.1) | 37.00 (1) | 54.00 | 39.35 | 39.35 (0.1) | 39.39 (0.1) | |||||||
| Composition | H | H | H | H | H | H | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -104.589039 (0.07) | -104.6697561 (0.1) | -104.589 (0.07) | -104.6697561 | ||||||||||||||
| Proper motion (declination) | [mas/yr] | -392.6765955 (0.05) | -392.70626 (0.09) | -392.677 (0.05) | -392.70626 | ||||||||||||||
| Variability | |||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | |||||||||||||||||||
| B magnitude | 17.59 | 17.50 | |||||||||||||||||
| V magnitude | 17.02 | ||||||||||||||||||
| R magnitude | 16.68 | 16.50 | |||||||||||||||||
| I magnitude | 16.36 | ||||||||||||||||||
| J magnitude | 15.97 (0.005) | 15.94 (0.07) | 16.03 | 15.95 (0.01) | |||||||||||||||
| H magnitude | 15.73 (0.009) | 15.84 (0.1) | 15.74 | 15.73 (0.009) | |||||||||||||||
| K magnitude | 15.67 (0.02) | 15.96 (0.2) | 15.65 | 15.66 (0.02) | |||||||||||||||
| u magnitude | 17.95 (0.01) | 17.95 (0.01) | 17.91 (0.01) | ||||||||||||||||
| g magnitude | 17.13 (0.007) | 17.16 (0.004) | |||||||||||||||||
| r magnitude | 16.86 (0.004) | 16.84 (0.004) | |||||||||||||||||
| i magnitude | 16.74 (0.004) | 16.72 (0.005) | |||||||||||||||||
| z magnitude | 16.74 (0.003) | 16.69 (0.009) | |||||||||||||||||
| G magnitude | 16.85 (0.006) | 16.86 | 16.86 | 16.85 | 16.85 (0.003) | 16.86 | |||||||||||||
| BP magnitude | 17.14 (0.006) | 17.12 | 17.12 | ||||||||||||||||
| RP magnitude | 16.41 (0.004) | 16.40 | 16.40 | ||||||||||||||||
| Pan g magnitude | 17.15 (0.003) | 17.15 (0.003) | 17.14 (0.007) | ||||||||||||||||
| Pan r magnitude | 16.87 (0.0007) | 16.87 (0.0007) | 16.86 (0.004) | ||||||||||||||||
| Pan i magnitude | 16.75 (0.003) | 16.75 (0.003) | 16.74 (0.004) | ||||||||||||||||
| Pan z magnitude | 16.75 (0.008) | 16.75 (0.009) | 16.74 (0.003) | ||||||||||||||||
| Pan y magnitude | 16.75 (0.002) | 16.75 (0.002) | 16.73 (0.006) | ||||||||||||||||
| E(B-V) | 0.001 | ||||||||||||||||||
* Constant surface field
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