2MASS J08490170+4439355
All names: 08490+4439, Gaia DR3 914211487199883008, 2MASS J08490170+4439355, NLTT 20277, SDSS J084901.61+443935.4, LSPM J0849+4439, PM J08490+4439, GALEX J084901.4+443936, US 1706, WDJ084901.64+443935.62, Gaia EDR3 914211487199883008, USNO-B1.0 1346-00207660, LP 164-58, PSO J132.2557+44.6594, J0849+4439, TIC 21498372, PSO J132.2560+44.6595, Gaia DR2 914211487199415680, SDSS J084901.60+443935.3
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | Kilic et al. 2026b | Caron et al. 2023 | 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 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 49 01.35 (0.08) | 08 49 01.36 (0.4) | 08 49 01.35 | 08 49 01.64 (0.08) | 08 49 01.36 | |||||||||
| Declination | 44 39 33.78 (0.06) | 44 39 33.83 (0.4) | 44 39 33.78 | 44 39 35.59 (0.06) | 44 39 33.83 | |||||||||
| Spectral type | DC | DC | DC | DC | DC | DC | DA | DC | ||||||
| Effective temperature | [K] | 5838.0 (14) | 5907.0 (19) | 5810.0 (65) | 6080.0 | 5820.0 | 5990.0 (56) | 6294.0 (45) | ||||||
| log(g) | [cgs] | 8.09 (0.006) | 8.15 (0.02) | 8.13 (0.04) | 8.27 | 8.12 | 8.00 (0) | 8.30 (0.01) | ||||||
| Mass | [M☉] | 0.624 (0.006) | 0.669 (0.02) | 0.654 (0.02) | 0.758 | 0.647 | 0.57 (0.1) | 0.781 (0.01) | ||||||
| log(Luminosity) | [L☉] | -3.74 | ||||||||||||
| Cooling age | [Gyr] | 4.0500 | 4.0840 (0.3) | 3.9830 | 3.9710 | |||||||||
| log(H/He) | -0.66 | |||||||||||||
| log(C/He) | ||||||||||||||
| log(Ca/He) | ||||||||||||||
| log(Ca/H) | ||||||||||||||
| log(Li/He) | ||||||||||||||
| log(Be/He) | ||||||||||||||
| log(B/He) | ||||||||||||||
| log(N/He) | ||||||||||||||
| log(O/He) | ||||||||||||||
| log(Na/He) | ||||||||||||||
| log(Mg/He) | ||||||||||||||
| log(Al/He) | ||||||||||||||
| log(Si/He) | ||||||||||||||
| log(P/He) | ||||||||||||||
| log(S/He) | ||||||||||||||
| log(Cl/He) | ||||||||||||||
| log(K/He) | ||||||||||||||
| log(Sc/He) | ||||||||||||||
| log(Ti/He) | ||||||||||||||
| log(V/He) | ||||||||||||||
| log(Cr/He) | ||||||||||||||
| log(Mn/He) | ||||||||||||||
| log(Fe/He) | ||||||||||||||
| log(Co/He) | ||||||||||||||
| log(Ni/He) | ||||||||||||||
| log(Cu/He) | ||||||||||||||
| log(Zn/He) | ||||||||||||||
| log(Ga/He) | ||||||||||||||
| log(Ge/He) | ||||||||||||||
| log(Sr/He) | ||||||||||||||
| Parallax | [mas] | 21.34 (0.1) | 22.11 (0.3) | 22.11 (0.3) | 22.11 (0.3) | 21.34 | 21.34 (0.1) | 22.11 (0.3) | ||||||
| Distance | [pc] | 46.86 (0.2) | 45.23 (0.7) | 45.23 (0.7) | 45.23 (0.7) | 51.10 (6) | 46.86 | 46.86 (0.2) | 45.23 (0.7) | |||||
| Composition | He | He | He | He | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -198.4644258 (0.1) | -197.4759183 (0.8) | -194.0 | -198.464 (0.1) | -197.4759183 | ||||||||
| Proper motion (declination) | [mas/yr] | -113.1468161 (0.08) | -115.548264 (0.7) | -110.0 | -113.147 (0.08) | -115.548264 | ||||||||
| Variability | ||||||||||||||
| Magnetic | ||||||||||||||
| Bd | [MG] | |||||||||||||
| Infrared excess (disk) | ||||||||||||||
| Binarity | ||||||||||||||
| B magnitude | 18.70 | |||||||||||||
| V magnitude | ||||||||||||||
| R magnitude | 17.50 | |||||||||||||
| I magnitude | ||||||||||||||
| J magnitude | 16.77 (0.02) | 16.28 (0.1) | 16.28 | 16.28 (0.1) | ||||||||||
| H magnitude | 16.03 (0.03) | 16.03 | ||||||||||||
| K magnitude | 16.18 (0.03) | 16.18 | ||||||||||||
| u magnitude | 18.75 (0.02) | 18.76 | 18.76 (0.02) | 18.76 (0.02) | ||||||||||
| g magnitude | 17.98 | 17.93 (0.003) | 17.98 (0.006) | |||||||||||
| r magnitude | 17.64 | 17.63 (0.002) | 17.62 (0.006) | |||||||||||
| i magnitude | 17.51 | 17.52 (0.003) | 17.50 (0.006) | |||||||||||
| z magnitude | 17.47 | 17.51 (0.005) | 17.49 (0.01) | |||||||||||
| G magnitude | 17.63 (0.008) | 17.64 | 17.63 | 17.63 (0.003) | 17.64 | |||||||||
| BP magnitude | 17.91 (0.008) | 17.93 | 17.93 | |||||||||||
| RP magnitude | 17.20 (0.009) | 17.20 | 17.20 | |||||||||||
| Pan g magnitude | 17.93 (0.002) | 17.93 (0.003) | 17.93 (0.003) | |||||||||||
| Pan r magnitude | 17.63 (0.002) | 17.63 (0.002) | 17.63 (0.002) | |||||||||||
| Pan i magnitude | 17.52 (0.003) | 17.52 (0.003) | 17.52 (0.003) | |||||||||||
| Pan z magnitude | 17.51 (0.006) | 17.51 (0.005) | 17.51 (0.005) | |||||||||||
| Pan y magnitude | 17.50 (0.01) | 17.50 (0.009) | 17.50 (0.009) | |||||||||||
| E(B-V) | 0.001 | |||||||||||||
* Constant surface field
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