WD 2317+005A
All names: SDSS J232015.21+004726.3, SDSS J232015.20+004726.3, Gaia DR2 2645284651257735040, WD 2317+005A, WD 2317+005.1, PSO J232015.202+004726.335
| Parameter | Unit | MWDD HE | Pan-STARRS DR1 | Gaia DR2 | SDSS DR12 | Simbad | Eisenstein et al. 2006 | White Dwarf Catalog (McCook & Sion 1999) | Kleinman et al. 2013 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 20 15.21 (0.4) | 23 20 15.21 | 23 20 15.21 | 23 20 15.21 | 23 20 14.64 | 23 20 15.20 | |||
| Declination | 00 47 26.20 (0.3) | 00 47 26.32 | 00 47 26.31 | 00 47 26.31 | 00 47 26.16 | 00 47 26.29 | |||
| Spectral type | DB | DB | DB | DB2.8 | DB | ||||
| Effective temperature | [K] | 15596.0 | 17942.0 (396) | 18221.0 (514) | |||||
| log(g) | [cgs] | 8.07 | 7.93 (0.2) | 8.02 (0.2) | |||||
| Mass | [M☉] | 0.632 | 0.601 (0.1) | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.1988 | |||||||
| log(H/He) | |||||||||
| 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] | 2.16 (0.5) | |||||||
| Distance | [pc] | 462.19 (116) | |||||||
| Composition | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | 4.228569711 (0.8) | 6.0 | 7.2 | |||||
| Proper motion (declination) | [mas/yr] | -7.104206766 (0.6) | -7.0 | -8.9 | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 19.44 (0.03) | 19.44 | 19.46 (0.03) | 19.46 | 19.46 (0.03) | ||||
| g magnitude | 19.47 (0.01) | 19.49 | 19.52 (0.03) | 19.51 | 19.51 (0.03) | ||||
| r magnitude | 19.73 (0.02) | 19.74 | 19.74 (0.02) | 19.75 | 19.73 (0.02) | ||||
| i magnitude | 20.03 (0.03) | 19.96 | 19.96 (0.03) | 19.96 | 19.95 (0.03) | ||||
| z magnitude | 20.24 (0.1) | 20.14 | 20.18 (0.1) | 20.17 | 20.15 (0.1) | ||||
| G magnitude | 19.66 | ||||||||
| BP magnitude | 19.56 | ||||||||
| RP magnitude | 19.69 | ||||||||
| Pan g magnitude | 19.49 (0.01) | ||||||||
| Pan r magnitude | 19.77 (0.02) | ||||||||
| Pan i magnitude | 20.04 (0.02) | ||||||||
| Pan z magnitude | 20.24 (0.05) | ||||||||
| Pan y magnitude | 20.28 (0.2) | ||||||||
* Constant surface field
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