Gaia DR2 2278511250386534016
All names: WDJ210909.54+770339.50, Gaia EDR3 2278511250386534016, Gaia DR2 2278511250386534016, USNO-B1.0 1670-00112978, LSPM J2109+7703, Gaia DR3 2278511250386534016, WDJ21099.54+770339.49
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Gentile Fusillo et al. 2018 |
|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 21 09 09.14 (0.1) | 21 09 09.16 | 21 09 09.14 | 21 09 09.54 (0.1) | 21 09 09.16 | |||||
| Declination | 77 03 42.01 (0.1) | 77 03 41.93 | 77 03 42.01 | 77 03 39.50 (0.1) | 77 03 41.93 | |||||
| Spectral type | DC: | DC | ||||||||
| Effective temperature | [K] | 4232.0 | 3961.0 | |||||||
| log(g) | [cgs] | 6.94 | 6.56 | |||||||
| Mass | [M☉] | 0.148 | 0.073 | |||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | |||||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 17.76 (0.1) | 17.63 (0.1) | 17.76 | 17.76 (0.1) | 17.63 (0.1) | ||||
| Distance | [pc] | 56.31 (0.3) | 56.74 (0.5) | 56.31 | 56.31 (0.3) | 56.74 (0.5) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -83.51703538 (0.1) | -83.46665922 (0.2) | -83.517 (0.1) | -83.46665922 | |||||
| Proper motion (declination) | [mas/yr] | 156.488319 (0.2) | 156.6358772 (0.3) | 156.488 (0.2) | 156.6358772 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | 19.40 | |||||||||
| V magnitude | ||||||||||
| R magnitude | 18.00 | |||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | ||||||||||
| g magnitude | ||||||||||
| r magnitude | ||||||||||
| i magnitude | ||||||||||
| z magnitude | ||||||||||
| G magnitude | 18.28 (0.02) | 18.31 | 18.28 | 18.28 (0.003) | 18.31 | |||||
| BP magnitude | 18.93 (0.02) | 18.94 | 18.94 | |||||||
| RP magnitude | 17.47 (0.01) | 17.47 | 17.47 | |||||||
| Pan g magnitude | 19.18 (0.008) | |||||||||
| Pan r magnitude | 18.25 (0.006) | |||||||||
| Pan i magnitude | 17.86 (0.009) | |||||||||
| Pan z magnitude | 17.71 (0.01) | |||||||||
| Pan y magnitude | 17.66 (0.01) | |||||||||
| E(B-V) | 0.004 | |||||||||
* Constant surface field
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