NLTT 47202
All names: GALEX J185106.3+773836, SDSS J185106.02+773837.1, PSO J282.7788+77.6434, PM J18510+7738, LP 25-7, J1851+7738, TIC 235672689, USNO-B1.0 1676-00106999, Gaia DR3 2292861388958880640, SDSS J185106.01+773837.1, Gaia DR2 2292861388958880640, WD 1853+775, SDSS J185106.01+773837.2, 2MASS J18510561+7738372, WIRED J185106.01+773837.1, LSPM J1851+7738, Gaia EDR3 2292861388958880640, WDJ185105.72+773837.50, SDSS J185106.02+773837.2, 18510+7738, NLTT 47202
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Kilic et al. 2025 | 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 | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 18 51 07.01 (0.06) | 18 51 06.02 | 18 51 06.97 (0.06) | 18 51 06.97 (0.06) | 18 51 07.01 | 18 51 05.72 (0.06) | 18 51 06.97 | 18 51 06.02 | |||||||||||
| Declination | 77 38 36.44 (0.05) | 77 38 37.20 | 77 38 36.47 (0.07) | 77 38 36.47 (0.07) | 77 38 36.44 | 77 38 37.50 (0.05) | 77 38 36.47 | 77 38 37.15 | |||||||||||
| Spectral type | DC | DCP | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 5156.0 (18) | 5108.0 (38) | 5158.0 (19) | 5145.1 (39) | 4850.0 (60) | 5184.0 | 4874.0 | 5230.0 (49) | 5211.0 (30) | 6300.0 (3) | ||||||||
| log(g) | [cgs] | 7.92 (0.009) | 7.89 (0.03) | 7.94 (0.009) | 7.93 (0.03) | 7.74 (0.03) | 7.95 | 7.74 | 8.00 (0) | 7.96 (0.01) | 10.00 (0.003) | ||||||||
| Mass | [M☉] | 0.535 (0.008) | 0.502 (0.02) | 0.548 (0.008) | 0.425 (0.02) | 0.552 | 0.422 | 0.58 (0.1) | 0.558 (0.01) | ||||||||||
| log(Luminosity) | [L☉] | -3.97 | |||||||||||||||||
| Cooling age | [Gyr] | 4.1000 | 3.6300 (0.3) | 4.1320 | 3.5430 | ||||||||||||||
| 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] | 32.84 (0.05) | 32.84 (0.05) | 32.90 (0.07) | 32.90 (0.07) | 32.90 (0.07) | 32.90 (0.07) | 32.84 | 32.84 (0.05) | 32.90 (0.07) | |||||||||
| Distance | [pc] | 30.45 (0.05) | 30.45 (0.05) | 30.40 (0.06) | 30.40 (0.06) | 30.40 (0.06) | 30.40 (0.06) | 30.30 (4) | 30.45 | 30.45 (0.05) | 30.40 (0.06) | ||||||||
| Composition | H | H | He | He | H | ||||||||||||||
| Proper motion (right ascension) | [mas/yr] | 258.8746775 (0.07) | 258.5208963 (0.1) | 261.0 | 258.875 (0.07) | 258.521 | |||||||||||||
| Proper motion (declination) | [mas/yr] | -66.70337384 (0.07) | -66.72976233 (0.1) | -69.0 | -66.703 (0.07) | -66.73 | |||||||||||||
| Variability | |||||||||||||||||||
| Magnetic | |||||||||||||||||||
| Bd | [MG] | ||||||||||||||||||
| Infrared excess (disk) | |||||||||||||||||||
| Binarity | |||||||||||||||||||
| B magnitude | 18.30 | ||||||||||||||||||
| V magnitude | |||||||||||||||||||
| R magnitude | 16.40 | ||||||||||||||||||
| I magnitude | |||||||||||||||||||
| J magnitude | 15.93 (0.08) | 15.93 (0.08) | 15.93 | 15.93 (0.08) | |||||||||||||||
| H magnitude | 15.80 (0.2) | 15.80 (0.2) | 15.80 | 15.80 (0.2) | |||||||||||||||
| K magnitude | 14.93 (0.03) | 14.93 | 14.93 (0.03) | ||||||||||||||||
| u magnitude | 19.08 (0.03) | 19.13 (0.03) | 19.07 | 19.08 (0.03) | 19.08 (0.03) | 19.09 (0.03) | |||||||||||||
| g magnitude | 17.60 (0.005) | 17.60 | 17.55 (0.009) | 17.60 (0.005) | 17.61 (0.01) | ||||||||||||||
| r magnitude | 16.97 (0.005) | 16.97 | 17.01 (0.004) | 16.98 (0.005) | 17.00 (0.01) | ||||||||||||||
| i magnitude | 16.73 (0.005) | 16.72 | 16.79 (0.005) | 16.73 (0.005) | 16.72 (0.01) | ||||||||||||||
| z magnitude | 16.65 (0.01) | 16.64 | 16.72 (0.004) | 16.65 (0.01) | 16.67 (0.01) | ||||||||||||||
| G magnitude | 17.03 (0.009) | 17.05 | 17.05 | 17.03 | 17.03 (0.003) | 17.05 | |||||||||||||
| BP magnitude | 17.47 (0.009) | 17.49 | 17.49 | ||||||||||||||||
| RP magnitude | 16.43 (0.004) | 16.45 | 16.45 | ||||||||||||||||
| Pan g magnitude | 17.55 (0.008) | 17.55 (0.009) | 17.55 (0.009) | ||||||||||||||||
| Pan r magnitude | 17.00 (0.002) | 17.01 (0.004) | 17.01 (0.004) | ||||||||||||||||
| Pan i magnitude | 16.77 (0.01) | 16.79 (0.005) | 16.79 (0.005) | ||||||||||||||||
| Pan z magnitude | 16.69 (0.01) | 16.72 (0.004) | 16.71 (0.004) | ||||||||||||||||
| Pan y magnitude | 16.66 (0.008) | 16.67 (0.009) | 16.67 (0.009) | ||||||||||||||||
| E(B-V) | 0.002 | ||||||||||||||||||
* Constant surface field
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