Gaia DR2 4539227892919675648
All names: USNO-B1.0 1183-00323789, WDJ184733.18+282057.53, J1847+2820, Gaia DR2 4539227892919675648, Gaia DR3 4539227892919675648, WDJ184733.18+282057.54, LSPM J1847+2820, Gaia EDR3 4539227892919675648
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | O'Brien et al. 2024 | Caron et al. 2023 | Tremblay et al. 2020 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 18 47 33.56 (0.08) | 18 47 33.55 | 18 47 33.56 | 18 47 33.18 (0.08) | 18 47 33.55 | ||||||||
| Declination | 28 20 52.05 (0.1) | 28 20 52.22 | 28 20 52.05 | 28 20 57.54 (0.1) | 28 20 52.22 | ||||||||
| Spectral type | DC | DC | DC | DC: | DC | ||||||||
| Effective temperature | [K] | 4794.0 (100) | 4799.0 (30) | 4630.0 (70) | 4712.0 | 4404.0 | 4829.0 (54) | ||||||
| log(g) | [cgs] | 8.25 (0.07) | 8.26 (0.01) | 8.14 (0.07) | 8.19 | 7.97 | 8.28 (0.03) | ||||||
| Mass | [M☉] | 0.739 (0.05) | 0.743 (0.01) | 0.699 | 0.551 | 0.758 (0.02) | |||||||
| log(Luminosity) | [L☉] | ||||||||||||
| Cooling age | [Gyr] | 9.4000 | 8.4710 | 6.6310 | |||||||||
| 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] | 25.00 (0.1) | 25.00 (0.1) | 24.87 (0.2) | 24.87 (0.2) | 25.00 | 25.00 (0.1) | 24.87 (0.2) | |||||
| Distance | [pc] | 40.00 (0.2) | 40.00 (0.2) | 40.21 (0.3) | 40.21 (0.3) | 40.00 | 40.00 (0.2) | 40.21 (0.3) | |||||
| Composition | H | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 309.374507 (0.1) | 309.2606321 (0.2) | 309.375 (0.1) | 309.2606321 | ||||||||
| Proper motion (declination) | [mas/yr] | -343.2194315 (0.1) | -343.1653641 (0.2) | -343.219 (0.1) | -343.1653641 | ||||||||
| Variability | |||||||||||||
| Magnetic | |||||||||||||
| Bd | [MG] | ||||||||||||
| Infrared excess (disk) | |||||||||||||
| Binarity | |||||||||||||
| B magnitude | 19.40 | ||||||||||||
| V magnitude | |||||||||||||
| R magnitude | 18.20 | ||||||||||||
| I magnitude | |||||||||||||
| J magnitude | 17.11 (0.03) | ||||||||||||
| H magnitude | |||||||||||||
| K magnitude | |||||||||||||
| u magnitude | |||||||||||||
| g magnitude | |||||||||||||
| r magnitude | |||||||||||||
| i magnitude | |||||||||||||
| z magnitude | |||||||||||||
| G magnitude | 18.44 (0.02) | 18.47 | 18.44 | 18.44 (0.003) | 18.47 | ||||||||
| BP magnitude | 18.97 (0.02) | 18.97 | 18.97 | ||||||||||
| RP magnitude | 17.76 (0.01) | 17.76 | 17.76 | ||||||||||
| Pan g magnitude | 19.12 (0.006) | 19.11 (0.01) | |||||||||||
| Pan r magnitude | 18.40 (0.006) | 18.39 (0.01) | |||||||||||
| Pan i magnitude | 18.11 (0.009) | 18.10 (0.006) | |||||||||||
| Pan z magnitude | 17.99 (0.009) | 17.97 (0.03) | |||||||||||
| Pan y magnitude | 17.97 (0.02) | 17.93 (0.01) | |||||||||||
| E(B-V) | 0.004 | ||||||||||||
* Constant surface field
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