SDSS J082115.34+373413.0
All names: Gaia DR3 908053736751086080, Gaia DR2 908053736751086080, SDSS J082115.33+373413.0, GALEX J082115.3+373413, Gaia EDR3 908053736751086080, SDSS J082115.34+373413.0
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 08 21 15.32 (0.5) | 08 21 15.33 | 08 21 15.32 (0.6) | 08 21 15.34 (0.5) | 08 21 15.34 | ||||||
| Declination | 37 34 12.65 (0.4) | 37 34 13.05 | 37 34 12.67 (0.5) | 37 34 13.23 (0.4) | 37 34 13.04 | ||||||
| Spectral type | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 8998.0 | 9441.0 | 10685.0 (378) | |||||||
| log(g) | [cgs] | 6.82 | 6.82 | 8.74 (0.7) | |||||||
| Mass | [M☉] | 0.177 | 0.163 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 1.96 (0.6) | 1.39 (0.8) | 1.96 (0.6) | |||||||
| Distance | [pc] | 509.25 (148) | 721.13 (400) | 509.24 (148) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -19.81279705 (0.6) | -16.84983372 (1) | -19.813 (0.6) | |||||||
| Proper motion (declination) | [mas/yr] | -35.9920863 (0.5) | -34.71757418 (1) | -35.992 (0.5) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 20.26 (0.04) | 20.26 (0.04) | 20.29 (0.05) | ||||||||
| g magnitude | 20.13 (0.02) | 20.13 (0.02) | 20.16 (0.03) | ||||||||
| r magnitude | 20.25 (0.02) | 20.25 (0.02) | 20.27 (0.03) | ||||||||
| i magnitude | 20.35 (0.03) | 20.35 (0.03) | 20.37 (0.03) | ||||||||
| z magnitude | 20.53 (0.1) | 20.53 (0.1) | 20.51 (0.1) | ||||||||
| G magnitude | 20.17 (0.1) | 20.23 | 20.17 (0.007) | ||||||||
| BP magnitude | 20.20 (0.1) | 20.21 | |||||||||
| RP magnitude | 20.00 (0.1) | 19.84 | |||||||||
| Pan g magnitude | 20.15 (0.02) | ||||||||||
| Pan r magnitude | 20.26 (0.02) | ||||||||||
| Pan i magnitude | 20.39 (0.01) | ||||||||||
| Pan z magnitude | 20.37 (0.03) | ||||||||||
| Pan y magnitude | 20.16 (0.2) | ||||||||||
| E(B-V) | 0.033 | ||||||||||
* Constant surface field
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