WD 1856+534
All names: NLTT 47263, USNO-B1.0 1435-00280850, PM J18576+5330, CNS5 4719, LP 141-14, TOI-1690, J1857+5330, WD 1856+534, LSPM J1857+5330, Gaia EDR3 2146576589564898688, ** LDS 4802C, 18576+5330, WDJ185739.34+533033.30, WDS J18576+5331C, Gaia DR2 2146576589564898688, TIC 267574918, PSO J284.4153+53.5090, Gaia DR3 2146576589564898688, 2MASS J18573936+5330332
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | McCleery et al. 2020 | Blouin et al. 2019 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Limoges et al. 2015 | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 | White Dwarf Catalog (McCook & Sion 1999) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 18 57 39.78 (0.06) | 18 57 39.76 (0.08) | 18 57 39.76 (0.08) | 18 57 39.78 | 18 57 39.34 (0.06) | 18 57 39.76 | 18 57 36.34 | |||||||||
| Declination | 53 30 32.46 (0.05) | 53 30 32.49 (0.08) | 53 30 32.49 (0.08) | 53 30 32.46 | 53 30 33.30 (0.05) | 53 30 32.49 | 53 31 06.96 | |||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 4738.0 (40) | 4833.0 (12) | 4707.4 (22) | 4430.0 (60) | 4784.0 | 4464.0 | 5570.0 (546) | 4814.0 (26) | |||||||
| log(g) | [cgs] | 7.88 (0.03) | 7.97 (0.006) | 7.87 (0.02) | 7.69 (0.03) | 7.92 | 7.69 | 8.00 (0) | 7.94 (0.01) | |||||||
| Mass | [M☉] | 0.507 (0.02) | 0.56 (0.005) | 0.396 (0.01) | 0.533 | 0.398 | 0.58 (0.1) | 0.54 (0.01) | ||||||||
| log(Luminosity) | [L☉] | -3.86 | ||||||||||||||
| Cooling age | [Gyr] | 6.3400 | 4.2550 (0.2) | 5.7860 | 4.1890 | |||||||||||
| 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] | 40.39 (0.05) | 40.39 (0.05) | 40.40 (0.07) | 40.40 (0.07) | 40.40 (0.07) | 40.40 (0.07) | 40.39 | 40.39 (0.05) | 40.40 (0.07) | ||||||
| Distance | [pc] | 24.76 (0.03) | 24.76 (0.03) | 24.75 (0.04) | 24.75 (0.04) | 24.75 (0.04) | 24.75 (0.04) | 31.80 (6) | 24.76 | 24.76 (0.03) | 24.75 (0.04) | |||||
| Composition | H | He | H | |||||||||||||
| Proper motion (right ascension) | [mas/yr] | 240.7492369 (0.07) | 240.7585621 (0.1) | 240.749 (0.07) | 240.7585621 | |||||||||||
| Proper motion (declination) | [mas/yr] | -52.47014066 (0.06) | -52.51395749 (0.1) | -52.47 (0.06) | -52.51395749 | |||||||||||
| Variability | ||||||||||||||||
| Magnetic | ||||||||||||||||
| Bd | [MG] | |||||||||||||||
| Infrared excess (disk) | ||||||||||||||||
| Binarity | ||||||||||||||||
| B magnitude | 17.60 | |||||||||||||||
| V magnitude | ||||||||||||||||
| R magnitude | 16.40 | |||||||||||||||
| I magnitude | ||||||||||||||||
| J magnitude | 15.57 (0.01) | 15.68 (0.06) | 15.68 (0.06) | |||||||||||||
| H magnitude | 15.43 (0.09) | 15.43 (0.09) | 15.43 (0.09) | |||||||||||||
| K magnitude | 15.55 (0.2) | 15.55 (0.2) | 15.55 (0.2) | |||||||||||||
| u magnitude | ||||||||||||||||
| g magnitude | 17.60 (0.005) | |||||||||||||||
| r magnitude | 16.91 (0.003) | |||||||||||||||
| i magnitude | 16.62 (0.004) | |||||||||||||||
| z magnitude | 16.52 (0.003) | |||||||||||||||
| G magnitude | 16.94 (0.008) | 16.96 | 16.96 | 16.94 | 16.94 (0.003) | 16.96 | ||||||||||
| BP magnitude | 17.47 (0.008) | 17.50 | 17.50 | |||||||||||||
| RP magnitude | 16.26 (0.004) | 16.28 | 16.28 | |||||||||||||
| Pan g magnitude | 17.60 (0.005) | 17.60 (0.005) | 17.60 (0.005) | |||||||||||||
| Pan r magnitude | 16.91 (0.003) | 16.91 (0.003) | 16.91 (0.003) | |||||||||||||
| Pan i magnitude | 16.62 (0.003) | 16.62 (0.004) | 16.62 (0.004) | |||||||||||||
| Pan z magnitude | 16.52 (0.003) | 16.52 (0.003) | 16.52 (0.003) | |||||||||||||
| Pan y magnitude | 16.47 (0.008) | 16.47 (0.006) | 16.47 (0.006) | |||||||||||||
| E(B-V) | 0.002 | |||||||||||||||
* Constant surface field
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