SDSS J025531.51+334945.6
All names: SDSS J025531.51+334945.5, Gaia DR2 136772889944022528, Gaia DR3 136772889944022528, SDSS J025531.51+334945.6, Gaia EDR3 136772889944022528, GALEX J025531.4+334945
| 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 | 02 55 31.53 (0.4) | 02 55 31.51 | 02 55 31.53 (0.6) | 02 55 31.50 (0.4) | 02 55 31.51 | ||||||
| Declination | 33 49 45.41 (0.4) | 33 49 45.60 | 33 49 45.42 (0.5) | 33 49 45.76 (0.4) | 33 49 45.62 | ||||||
| Spectral type | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 9421.0 | 9460.0 | 11230.0 (661) | |||||||
| log(g) | [cgs] | 7.79 | 7.74 | 8.41 (0.6) | |||||||
| Mass | [M☉] | 0.485 | 0.439 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.5475 | 0.5228 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.31 (0.5) | 2.74 (0.7) | 3.31 (0.5) | |||||||
| Distance | [pc] | 302.46 (43) | 365.43 (94) | 302.46 (43) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 28.49808799 (0.5) | 28.89483398 (1) | 28.498 (0.5) | |||||||
| Proper motion (declination) | [mas/yr] | -22.12216962 (0.5) | -22.19322613 (1) | -22.122 (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 | 20.13 (0.05) | 20.12 (0.05) | 20.08 (0.05) | ||||||||
| g magnitude | 19.92 (0.02) | 19.92 (0.02) | 19.91 (0.02) | ||||||||
| r magnitude | 19.97 (0.02) | 19.97 (0.02) | 19.94 (0.02) | ||||||||
| i magnitude | 20.13 (0.04) | 20.13 (0.04) | 20.05 (0.03) | ||||||||
| z magnitude | 20.38 (0.1) | 20.38 (0.1) | 20.19 (0.1) | ||||||||
| G magnitude | 19.91 (0.05) | 19.96 | 19.91 (0.006) | ||||||||
| BP magnitude | 20.00 (0.05) | 19.94 | |||||||||
| RP magnitude | 19.94 (0.1) | 20.00 | |||||||||
| Pan g magnitude | 19.92 (0.007) | ||||||||||
| Pan r magnitude | 19.98 (0.01) | ||||||||||
| Pan i magnitude | 20.09 (0.03) | ||||||||||
| Pan z magnitude | 20.22 (0.04) | ||||||||||
| Pan y magnitude | 20.40 (0.2) | ||||||||||
| E(B-V) | 0.069 | ||||||||||
* Constant surface field
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