SDSS J124747.50+450843.6
All names: GALEX J124747.4+450843, SDSS J124747.51+450843.6, SDSSJ124747.51+450843.6, SDSS J124747.51+450843.7, Gaia DR3 1542485414995298816, Gaia DR2 1542485414995298816, SDSS J124747.50+450843.6, Gaia EDR3 1542485414995298816
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | MWDD H | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 47 47.50 (0.1) | 12 47 47.51 | 12 47 47.51 | 12 47 47.50 (0.2) | 12 47 47.51 (0.1) | 12 47 47.51 | 12 47 47.51 | |||||
| Declination | 45 08 43.59 (0.2) | 45 08 43.67 | 45 08 43.60 | 45 08 43.59 (0.2) | 45 08 43.63 (0.2) | 45 08 43.68 | 45 08 43.68 | |||||
| Spectral type | He-sdOB | DC | DB | SDO: | DC_VERYHOT | sdO | ||||||
| Effective temperature | [K] | 29259.0 | 73043.0 (11645) | 70391.0 (10814) | ||||||||
| log(g) | [cgs] | 7.11 | 5.86 (0.5) | 6.20 (0.5) | ||||||||
| Mass | [M☉] | 0.331 | ||||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 0.0098 | ||||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 0.57 (0.3) | 0.65 (0.3) | 0.65 (0.3) | 0.57 (0.3) | |||||||
| Distance | [pc] | 1746.98 (793) | 1538.70 (795) | 1538.81 (795) | 1747.03 (793) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | -1.207833017 (0.2) | -1.742 (0.4) | -1.74201471 (0.4) | -1.208 (0.2) | 1.2 | ||||||
| Proper motion (declination) | [mas/yr] | -2.754585509 (0.2) | -3.017 (0.4) | -3.017118282 (0.4) | -2.755 (0.2) | -6.9 | ||||||
| Variability | ||||||||||||
| Magnetic | ||||||||||||
| Bd | [MG] | |||||||||||
| Infrared excess (disk) | ||||||||||||
| Binarity | ||||||||||||
| B magnitude | ||||||||||||
| V magnitude | ||||||||||||
| R magnitude | ||||||||||||
| I magnitude | ||||||||||||
| J magnitude | ||||||||||||
| H magnitude | ||||||||||||
| K magnitude | ||||||||||||
| u magnitude | 18.71 (0.02) | 18.71 (0.02) | 18.71 (0.02) | 18.76 (0.05) | 18.76 (0.05) | |||||||
| g magnitude | 19.16 (0.01) | 19.16 (0.01) | 19.16 (0.01) | 19.20 (0.02) | 19.20 (0.02) | |||||||
| r magnitude | 19.69 (0.02) | 19.69 (0.02) | 19.69 (0.02) | 19.75 (0.03) | 19.75 (0.03) | |||||||
| i magnitude | 19.99 (0.03) | 19.99 (0.03) | 19.99 (0.03) | 20.05 (0.04) | 20.04 (0.04) | |||||||
| z magnitude | 20.09 (0.1) | 20.09 (0.1) | 20.09 (0.1) | 20.20 (0.1) | 20.19 (0.1) | |||||||
| G magnitude | 19.44 (0.02) | 19.50 (0.003) | 19.50 | 19.44 (0.003) | ||||||||
| BP magnitude | 19.33 (0.02) | 19.17 (0.03) | 19.17 | |||||||||
| RP magnitude | 19.74 (0.05) | 19.70 (0.06) | 19.70 | |||||||||
| Pan g magnitude | 19.25 (0.01) | 19.25 (0.01) | ||||||||||
| Pan r magnitude | 19.70 (0.01) | 19.70 (0.01) | ||||||||||
| Pan i magnitude | 20.08 (0.009) | 20.08 (0.009) | ||||||||||
| Pan z magnitude | 20.28 (0.06) | 20.28 (0.06) | ||||||||||
| Pan y magnitude | 20.47 (0.1) | 20.47 (0.1) | ||||||||||
| E(B-V) | 0.019 | |||||||||||
* Constant surface field
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