SDSS J074002.09+174050.0
All names: SDSS J074002.10+174050.0, Gaia DR3 671134097935081344, Gaia DR2 671134097935081344, Gaia EDR3 671134097935081344, GALEX J074002.0+174050, SDSS J074002.10+174049.9, SDSS J074002.09+174050.0
| 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 | 07 40 02.09 (0.3) | 07 40 02.09 | 07 40 02.09 (0.4) | 07 40 02.10 (0.3) | 07 40 02.10 | ||||||
| Declination | 17 40 49.79 (0.2) | 17 40 50.00 | 17 40 49.80 (0.3) | 17 40 50.03 (0.2) | 17 40 49.99 | ||||||
| Spectral type | DC: | DC: | DC | DC | DC | ||||||
| Effective temperature | [K] | 10774.0 | 10988.0 | 11672.0 (414) | |||||||
| log(g) | [cgs] | 8.18 | 8.13 | 8.37 (0.4) | |||||||
| Mass | [M☉] | 0.711 | 0.661 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.6422 | 0.5893 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 3.82 (0.3) | 3.58 (0.4) | 3.82 (0.3) | |||||||
| Distance | [pc] | 262.03 (22) | 279.48 (34) | 262.03 (22) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.126198384 (0.3) | -4.087272345 (0.7) | -4.126 (0.3) | |||||||
| Proper motion (declination) | [mas/yr] | -15.32985843 (0.3) | -15.495178 (0.7) | -15.33 (0.3) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.43 (0.03) | 19.43 (0.03) | 19.47 (0.03) | ||||||||
| g magnitude | 19.37 (0.01) | 19.37 (0.01) | 19.38 (0.01) | ||||||||
| r magnitude | 19.51 (0.02) | 19.51 (0.01) | 19.55 (0.02) | ||||||||
| i magnitude | 19.65 (0.02) | 19.65 (0.02) | 19.66 (0.02) | ||||||||
| z magnitude | 19.94 (0.1) | 19.94 (0.1) | 19.94 (0.1) | ||||||||
| G magnitude | 19.42 (0.05) | 19.47 | 19.42 (0.005) | ||||||||
| BP magnitude | 19.42 (0.05) | 19.38 | |||||||||
| RP magnitude | 19.49 (0.1) | 19.43 | |||||||||
| Pan g magnitude | 19.39 (0.01) | ||||||||||
| Pan r magnitude | 19.55 (0.009) | ||||||||||
| Pan i magnitude | 19.72 (0.02) | ||||||||||
| Pan z magnitude | 19.97 (0.06) | ||||||||||
| Pan y magnitude | 19.90 (0.05) | ||||||||||
| E(B-V) | 0.012 | ||||||||||
* Constant surface field
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