SDSS J155452.31+080303.1
All names: GALEX J155452.3+080302, Gaia EDR3 4454165245287160192, SDSS J155452.31+080303.1, Gaia DR3 4454165245287160192, SDSS J155452.30+080303.1, Gaia DR2 4454165240989458560
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 54 52.31 (0.2) | 15 54 52.30 | 15 54 52.31 (0.3) | 15 54 52.31 | 15 54 52.30 (0.2) | 15 54 52.31 | ||||||
| Declination | 08 03 02.82 (0.2) | 08 03 03.16 | 08 03 02.83 (0.3) | 08 03 02.82 | 08 03 03.15 (0.2) | 08 03 03.14 | ||||||
| Spectral type | DC | DC | DA: | DC | DC | DC | ||||||
| Effective temperature | [K] | 8082.0 | 7834.0 | 8354.0 (449) | 10088.0 (18) | |||||||
| log(g) | [cgs] | 8.04 | 7.95 | 8.07 (0.1) | 8.99 (0.8) | |||||||
| Mass | [M☉] | 0.616 | 0.545 | 0.637 (0.1) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 1.0990 | 1.0980 | |||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 5.22 (0.3) | 5.31 (0.4) | 5.22 | 5.22 (0.3) | |||||||
| Distance | [pc] | 191.74 (11) | 188.18 (15) | 191.74 | 191.74 (11) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 17.57931973 (0.3) | 17.53626004 (0.7) | 17.579 (0.3) | ||||||||
| Proper motion (declination) | [mas/yr] | -20.68898192 (0.3) | -20.42381059 (0.5) | -20.689 (0.2) | ||||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 19.84 (0.03) | 19.84 (0.03) | 19.76 (0.03) | |||||||||
| g magnitude | 19.42 (0.01) | 19.42 (0.01) | 19.47 (0.02) | |||||||||
| r magnitude | 19.37 (0.01) | 19.37 (0.01) | 19.38 (0.02) | |||||||||
| i magnitude | 19.43 (0.02) | 19.43 (0.02) | 19.40 (0.02) | |||||||||
| z magnitude | 19.59 (0.06) | 19.59 (0.06) | 19.54 (0.06) | |||||||||
| G magnitude | 19.33 (0.05) | 19.37 | 19.33 | 19.33 (0.004) | ||||||||
| BP magnitude | 19.50 (0.05) | 19.48 | ||||||||||
| RP magnitude | 19.15 (0.04) | 19.14 | ||||||||||
| Pan g magnitude | 19.44 (0.02) | |||||||||||
| Pan r magnitude | 19.38 (0.01) | |||||||||||
| Pan i magnitude | 19.43 (0.008) | |||||||||||
| Pan z magnitude | 19.49 (0.02) | |||||||||||
| Pan y magnitude | 19.62 (0.03) | |||||||||||
| E(B-V) | 0.027 | |||||||||||
* Constant surface field
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