SDSS J230451.98+231659.7
All names: GALEX J230451.9+231700, SDSS J230451.98+231659.7, SDSS J230451.98+231659.77, Gaia DR3 2842002468471718400, Gaia EDR3 2842002468471718400, Gaia DR2 2842002468471718400, SDSS J230451.96+231659.9
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Kepler et al. 2016 | Vincent et al. 2024 | Simbad | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 04 51.99 (0.2) | 23 04 51.97 | 23 04 51.99 (0.2) | 23 04 51.99 | 23 04 51.95 (0.2) | |||||||
| Declination | 23 16 59.67 (0.2) | 23 16 59.90 | 23 16 59.68 (0.3) | 23 16 59.67 | 23 17 00.01 (0.2) | |||||||
| Spectral type | DC: | DC: | DC: | DC | DQ | DC | ||||||
| Effective temperature | [K] | 9560.0 | 9303.0 | 11310.0 (235) | 8828.0 (417) | |||||||
| log(g) | [cgs] | 8.50 | 8.42 | 8.00 (0) | 8.27 (0.09) | |||||||
| Mass | [M☉] | 0.917 | 0.849 | 0.748 (0.08) | ||||||||
| log(Luminosity) | [L☉] | |||||||||||
| Cooling age | [Gyr] | 1.6620 | 1.5000 | |||||||||
| log(H/He) | ||||||||||||
| log(C/He) | ||||||||||||
| log(Ca/He) | ||||||||||||
| log(Ca/H) | ||||||||||||
| Parallax | [mas] | 6.32 (0.3) | 6.19 (0.4) | 6.32 | 6.32 (0.3) | |||||||
| Distance | [pc] | 158.20 (7) | 161.44 (1e+01) | 158.20 | 158.20 (7) | |||||||
| Composition | ||||||||||||
| Proper motion (right ascension) | [mas/yr] | 29.48497268 (0.3) | 30.03148444 (0.6) | 29.485 (0.3) | ||||||||
| Proper motion (declination) | [mas/yr] | -21.49196861 (0.2) | -21.6797766 (0.5) | -21.492 (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 | 19.38 (0.03) | 19.39 (0.03) | 19.39 (0.03) | |||||||||
| g magnitude | 19.17 (0.01) | 19.16 (0.01) | 19.18 (0.01) | |||||||||
| r magnitude | 19.25 (0.01) | 19.25 (0.02) | 19.24 (0.01) | |||||||||
| i magnitude | 19.40 (0.02) | 19.39 (0.03) | 19.38 (0.02) | |||||||||
| z magnitude | 19.54 (0.06) | 19.50 (0.06) | 19.52 (0.06) | |||||||||
| G magnitude | 19.15 (0.03) | 19.19 | 19.15 | 19.15 (0.004) | ||||||||
| BP magnitude | 19.27 (0.03) | 19.25 | ||||||||||
| RP magnitude | 19.00 (0.03) | 19.10 | ||||||||||
| Pan g magnitude | 19.19 (0.01) | |||||||||||
| Pan r magnitude | 19.23 (0.01) | |||||||||||
| Pan i magnitude | 19.33 (0.008) | |||||||||||
| Pan z magnitude | 19.51 (0.03) | |||||||||||
| Pan y magnitude | 19.60 (0.02) | |||||||||||
| E(B-V) | 0.016 | |||||||||||
* Constant surface field
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