LP642-052
All names: SDSS J232115.32+010211.2, Gaia EDR3 2645295921252503424, SDSS J232115.31+010211.0, GSC2U J232115.4+010214, J2321+0102, Gaia DR3 2645295921252503424, WDJ232115.34+010211.96, LP 642-52, LSPM J2321+0102S, NLTT 56590, Gaia DR2 2645295921252503424, WD 2318+007.1, LP642-052, USNO-B1.0 0910-00564672
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | Caron et al. 2023 | Kilic et al. 2020 | MWDD H | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 21 15.23 (0.2) | 23 21 15.31 | 23 21 15.23 (0.3) | 23 21 15.23 | 23 21 15.34 (0.3) | 23 21 15.23 | 23 21 16.58 | ||||||||
| Declination | 01 02 07.98 (0.2) | 01 02 11.04 | 01 02 08.10 (0.3) | 01 02 07.98 | 01 02 11.96 (0.3) | 01 02 08.10 | 01 02 26.88 | ||||||||
| Spectral type | DA | DA | DA | DA | DA | DA | DC: | DA | |||||||
| Effective temperature | [K] | 5584.0 (44) | 5650.0 (46) | 5528.0 (50) | 5647.0 | 5841.0 (151) | |||||||||
| log(g) | [cgs] | 8.40 (0.02) | 8.42 (0.02) | 8.34 (0.03) | 8.40 | 8.52 (0.05) | |||||||||
| Mass | [M☉] | 0.844 (0.02) | 0.857 (0.02) | 0.804 (0.03) | 0.843 | 0.922 (0.04) | |||||||||
| log(Luminosity) | [L☉] | ||||||||||||||
| Cooling age | [Gyr] | 6.3200 | 5.8440 | ||||||||||||
| 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] | 16.57 (0.3) | 16.22 (0.3) | 16.22 (0.3) | 16.57 | 16.22 (0.3) | 16.22 (0.3) | ||||||||
| Distance | [pc] | 60.36 (1) | 61.65 (1) | 61.64 (1) | 60.36 | 61.65 (1) | 61.64 (1) | ||||||||
| Composition | H | H | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -104.9978351 (0.3) | -104.8608413 (0.6) | -104.861 (0.6) | -104.8608413 | ||||||||||
| Proper motion (declination) | [mas/yr] | -248.7144303 (0.3) | -249.1599681 (0.5) | -249.16 (0.5) | -249.1599681 | ||||||||||
| Variability | |||||||||||||||
| Magnetic | |||||||||||||||
| Bd | [MG] | ||||||||||||||
| Infrared excess (disk) | |||||||||||||||
| Binarity | yes | ||||||||||||||
| B magnitude | 20.30 | ||||||||||||||
| V magnitude | |||||||||||||||
| R magnitude | 19.20 | ||||||||||||||
| I magnitude | |||||||||||||||
| J magnitude | 17.84 (0.03) | 17.78 (0.04) | |||||||||||||
| H magnitude | 17.62 (0.04) | 17.54 (0.04) | |||||||||||||
| K magnitude | 17.76 (0.2) | 17.53 (0.05) | |||||||||||||
| u magnitude | 20.52 (0.06) | 20.58 (0.06) | 20.54 (0.06) | 20.48 (0.06) | 20.51 | ||||||||||
| g magnitude | 19.29 (0.01) | 19.29 (0.01) | 19.34 (0.01) | 19.37 | |||||||||||
| r magnitude | 18.82 (0.01) | 18.81 (0.01) | 18.82 (0.01) | 18.84 | |||||||||||
| i magnitude | 18.65 (0.01) | 18.64 (0.01) | 18.64 (0.01) | 18.65 | |||||||||||
| z magnitude | 18.52 (0.03) | 18.52 (0.03) | 18.58 (0.04) | 18.59 | |||||||||||
| G magnitude | 18.84 (0.04) | 18.87 | 18.84 | 18.87 (0.003) | 18.87 | ||||||||||
| BP magnitude | 19.13 (0.04) | 19.08 | 19.08 | ||||||||||||
| RP magnitude | 18.39 (0.03) | 18.36 | 18.36 | ||||||||||||
| Pan g magnitude | 19.22 (0.02) | 19.22 (0.02) | |||||||||||||
| Pan r magnitude | 18.82 (0.01) | 18.82 (0.01) | |||||||||||||
| Pan i magnitude | 18.64 (0.004) | 18.64 (0.004) | |||||||||||||
| Pan z magnitude | 18.58 (0.002) | 18.58 (0.002) | |||||||||||||
| Pan y magnitude | 18.61 (0.02) | 18.61 (0.02) | |||||||||||||
| E(B-V) | 0.002 | ||||||||||||||
* Constant surface field
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