LP642-053
All names: USNO-B1.0 0910-00564673, LP642-053, WDJ232115.70+010224.59, LSPM J2321+0102N, J2321+0102, LP 642-53, Gaia DR3 2645295955612242688, SDSS J232115.67+010223.7, SDSS J232115.67+010223.6, Gaia EDR3 2645295955612242688, SDSS J232115.67+010223.8, NLTT 56589, WD 2318+007.2, GSC2U J232116.8+010227, Gaia DR2 2645295955612242688
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2025 | Caron et al. 2023 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 21 15.59 (0.2) | 23 21 15.59 (0.3) | 23 21 15.59 | 23 21 15.70 (0.2) | 23 21 15.59 | 23 21 16.58 | |||||||
| Declination | 01 02 20.57 (0.2) | 01 02 20.69 (0.3) | 01 02 20.57 | 01 02 24.59 (0.2) | 01 02 20.69 | 01 02 26.88 | |||||||
| Spectral type | DC | DC | DC | DC | DA: | DC | DC: | ||||||
| Effective temperature | [K] | 4719.0 (40) | 4754.0 (41) | 4661.0 | 4338.0 | 4837.0 (143) | |||||||
| log(g) | [cgs] | 7.94 (0.03) | 7.94 (0.03) | 7.84 | 7.60 | 8.01 (0.07) | |||||||
| Mass | [M☉] | 0.542 (0.02) | 0.543 (0.03) | 0.487 | 0.354 | 0.587 (0.06) | |||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 6.3100 | 5.3610 | 3.8410 | |||||||||
| 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] | 16.38 (0.3) | 15.90 (0.4) | 15.90 (0.4) | 16.38 | 16.38 (0.3) | 15.90 (0.4) | ||||||
| Distance | [pc] | 61.06 (1) | 62.89 (1) | 62.88 (1) | 61.06 | 61.06 (1) | 62.88 (1) | ||||||
| Composition | H | H | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -104.747251 (0.3) | -103.992544 (0.7) | -104.747 (0.3) | -103.992544 | ||||||||
| Proper motion (declination) | [mas/yr] | -251.3840842 (0.3) | -251.1629626 (0.5) | -251.384 (0.3) | -251.1629626 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | yes | ||||||||||||
| B magnitude | 20.80 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 19.40 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.63 (0.03) | 17.54 (0.04) | |||||||||||
| H magnitude | 17.36 (0.03) | 17.37 (0.04) | |||||||||||
| K magnitude | 17.41 (0.1) | 17.32 (0.04) | |||||||||||
| u magnitude | 21.72 (0.2) | 21.50 (0.1) | 21.81 (0.2) | 19.81 | |||||||||
| g magnitude | 19.77 (0.01) | 19.79 (0.02) | 19.81 | ||||||||||
| r magnitude | 18.94 (0.01) | 18.96 (0.01) | |||||||||||
| i magnitude | 18.62 (0.01) | 18.62 (0.01) | |||||||||||
| z magnitude | 18.43 (0.03) | 18.46 (0.04) | |||||||||||
| G magnitude | 18.99 (0.05) | 19.03 | 18.99 | 18.99 (0.004) | 19.03 | ||||||||
| BP magnitude | 19.51 (0.05) | 19.46 | 19.46 | ||||||||||
| RP magnitude | 18.30 (0.03) | 18.29 | 18.29 | ||||||||||
| Pan g magnitude | 19.70 (0.02) | 19.70 (0.02) | |||||||||||
| Pan r magnitude | 18.97 (0.02) | 18.97 (0.02) | |||||||||||
| Pan i magnitude | 18.65 (0.005) | 18.65 (0.007) | |||||||||||
| Pan z magnitude | 18.52 (0.001) | 18.52 (0.001) | |||||||||||
| Pan y magnitude | 18.52 (0.04) | 18.52 (0.05) | |||||||||||
| E(B-V) | 0.003 | ||||||||||||
* Constant surface field
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