GD 406
All names: WD 2328+510, 2MASS J23304068+5121498, 2328+510, Gaia EDR3 1991357777161163904, Gaia DR2 1991357777161163904, KPD 2328+5104, SDSS J233040.77+512150.0, LSPM J2330+5121, USNO-B1.0 1413-00504309, GALEX J233040.8+512150, GD 406, WDJ233040.71+512149.74, TIC 25769850, Gaia DR3 1991357777161163904
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Leggett et al. 2018 | MWDD HE | Gaia DR2 | Stilism | Bergeron et al. 2011 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 30 40.98 (0.02) | 23 30 40.97 (0.03) | 23 30 40.98 | 23 30 40.71 (0.02) | 23 30 40.97 | 23 30 43.75 | |||||||
| Declination | 51 21 50.84 (0.02) | 51 21 50.81 (0.02) | 51 21 50.84 | 51 21 49.74 (0.02) | 51 21 50.81 | 51 21 21.24 | |||||||
| Spectral type | DBA | DBA3.6 | DB | DB | DB | DB | DB | ||||||
| Effective temperature | [K] | 13959.0 (112) | 14101.0 (553) | 13742.0 | 14460.0 (362) | 14005.0 (93) | |||||||
| log(g) | [cgs] | 8.02 (0.008) | 8.03 (0.04) | 8.00 | 8.06 (0.1) | 8.03 (0.008) | |||||||
| Mass | [M☉] | 0.602 (0.007) | 0.608 (0.04) | 0.589 | 0.63 (0.07) | 0.603 (0.006) | |||||||
| log(Luminosity) | [L☉] | -2.23 | |||||||||||
| Cooling age | [Gyr] | 0.2540 (0.04) | 0.2614 | 0.2630 | |||||||||
| log(H/He) | -6.0 | <-5.51 (0.3) | |||||||||||
| 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] | 19.06 (0.03) | 18.98 (0.3) | 19.07 (0.04) | 19.06 | 19.06 (0.03) | 19.07 (0.04) | ||||||
| Distance | [pc] | 52.48 (0.07) | 52.69 (0.9) | 52.43 (0.1) | 53.00 | 52.48 | 52.48 (0.07) | 52.43 (0.1) | |||||
| Composition | He | He | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 160.3596017 (0.03) | 160.2850404 (0.06) | 160.36 (0.03) | 160.2850404 | ||||||||
| Proper motion (declination) | [mas/yr] | 69.02840601 (0.02) | 69.10345932 (0.05) | 69.028 (0.03) | 69.10345932 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 15.03 | ||||||||||||
| V magnitude | 15.09 | ||||||||||||
| R magnitude | 15.10 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 15.43 (0.05) | ||||||||||||
| H magnitude | 15.48 (0.1) | ||||||||||||
| K magnitude | 15.45 (0.2) | ||||||||||||
| u magnitude | 14.88 (0.004) | 14.88 (0.004) | |||||||||||
| g magnitude | 14.92 (0.004) | 14.92 (0.004) | |||||||||||
| r magnitude | 15.21 (0.004) | 15.21 (0.004) | |||||||||||
| i magnitude | 15.43 (0.004) | 15.43 (0.004) | |||||||||||
| z magnitude | 15.67 (0.007) | 15.67 (0.007) | |||||||||||
| G magnitude | 15.06 (0.001) | 15.08 | 15.06 | 15.06 (0.003) | 15.08 | ||||||||
| BP magnitude | 15.02 (0.001) | 14.98 | 14.98 | ||||||||||
| RP magnitude | 15.13 (0.001) | 15.12 | 15.12 | ||||||||||
| Pan g magnitude | 14.98 (0.003) | ||||||||||||
| Pan r magnitude | 15.23 (0.002) | ||||||||||||
| Pan i magnitude | 15.46 (0.004) | ||||||||||||
| Pan z magnitude | 15.68 (0.003) | ||||||||||||
| Pan y magnitude | 15.81 (0.007) | ||||||||||||
| E(B-V) | 0.004 | ||||||||||||
* Constant surface field
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