Gaia DR2 2172420060626469248
All names: Gaia DR2 2172420060626469248, SDSS J212117.02+523518.3, SDSS J212117.01+523518.3, Gaia EDR3 2172420060626469248, WDJ212117.05+523519.01, Gaia DR3 2172420060626469248, WDJ212117.05+523519.02
| 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 21 16.98 (0.1) | 21 21 16.98 | 21 21 16.98 | 21 21 17.05 (0.1) | 21 21 16.98 | |||||
| Declination | 52 35 17.20 (0.1) | 52 35 17.25 | 52 35 17.20 | 52 35 19.01 (0.1) | 52 35 17.25 | |||||
| Spectral type | DA: | DA | ||||||||
| Effective temperature | [K] | 4459.0 | 4153.0 | 4550.0 (71) | ||||||
| log(g) | [cgs] | 7.66 | 7.40 | 7.70 (0.04) | ||||||
| Mass | [M☉] | 0.39 | 0.276 | 0.412 (0.03) | ||||||
| log(Luminosity) | [L☉] | |||||||||
| Cooling age | [Gyr] | 4.1060 | 3.1030 | |||||||
| log(H/He) | ||||||||||
| log(C/He) | ||||||||||
| log(Ca/He) | ||||||||||
| log(Ca/H) | ||||||||||
| Parallax | [mas] | 18.78 (0.1) | 18.86 (0.2) | 18.78 | 18.78 (0.1) | 18.86 (0.2) | ||||
| Distance | [pc] | 53.24 (0.4) | 53.04 (0.6) | 53.24 | 53.24 (0.4) | 53.04 (0.6) | ||||
| Composition | ||||||||||
| Proper motion (right ascension) | [mas/yr] | -41.17883216 (0.2) | -40.80996099 (0.4) | -41.179 (0.2) | -40.80996099 | |||||
| Proper motion (declination) | [mas/yr] | -113.2235203 (0.1) | -113.6687367 (0.3) | -113.224 (0.1) | -113.6687367 | |||||
| Variability | ||||||||||
| Magnetic | ||||||||||
| Bd | [MG] | |||||||||
| Infrared excess (disk) | ||||||||||
| Binarity | ||||||||||
| B magnitude | ||||||||||
| V magnitude | ||||||||||
| R magnitude | ||||||||||
| I magnitude | ||||||||||
| J magnitude | ||||||||||
| H magnitude | ||||||||||
| K magnitude | ||||||||||
| u magnitude | 21.64 (0.2) | 21.64 (0.2) | ||||||||
| g magnitude | 19.50 (0.01) | 19.50 (0.01) | ||||||||
| r magnitude | 18.54 (0.009) | 18.54 (0.009) | ||||||||
| i magnitude | 18.16 (0.009) | 18.16 (0.009) | ||||||||
| z magnitude | 17.99 (0.02) | 17.99 (0.02) | ||||||||
| G magnitude | 18.60 (0.03) | 18.63 | 18.60 | 18.60 (0.003) | 18.63 | |||||
| BP magnitude | 19.22 (0.03) | 19.28 | 19.28 | |||||||
| RP magnitude | 17.88 (0.02) | 17.88 | 17.88 | |||||||
| Pan g magnitude | 19.40 (0.02) | |||||||||
| Pan r magnitude | 18.58 (0.008) | |||||||||
| Pan i magnitude | 18.22 (0.006) | |||||||||
| Pan z magnitude | 18.10 (0.008) | |||||||||
| Pan y magnitude | 18.03 (0.008) | |||||||||
| E(B-V) | 0.004 | |||||||||
* Constant surface field
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