SDSS J024236.48+002704.4
All names: Gaia DR2 2498826403903386880, [VV2006b] J024236.5+002704, SDSS J024236.48+002704.4, SDSS J024236.48+002704.5, USNO-A2.0 0900-00633627, [VV2010b] J024236.5+002704, Gaia EDR3 2498826403903386880, Gaia DR3 2498826403903386880
| 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 42 36.50 (0.3) | 02 42 36.49 | 02 42 36.50 (0.4) | 02 42 36.49 (0.3) | 02 42 36.48 | ||||||
| Declination | 00 27 04.54 (0.3) | 00 27 04.51 | 00 27 04.54 (0.4) | 00 27 04.42 (0.3) | 00 27 04.48 | ||||||
| Spectral type | DC | DC | DC | DC | DC | ||||||
| Effective temperature | [K] | 11306.0 | 11492.0 | 11634.0 (438) | |||||||
| log(g) | [cgs] | 8.46 | 8.42 | 8.40 (0.4) | |||||||
| Mass | [M☉] | 0.899 | 0.853 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.8906 | 0.7971 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 4.37 (0.4) | 4.56 (0.6) | 4.37 (0.4) | |||||||
| Distance | [pc] | 228.72 (19) | 219.13 (27) | 228.72 (19) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 13.37286365 (0.3) | 13.07016947 (0.8) | 13.373 (0.3) | |||||||
| Proper motion (declination) | [mas/yr] | 7.454989422 (0.3) | 7.619226195 (0.7) | 7.455 (0.3) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 18.40 (0.3) | ||||||||||
| V magnitude | 19.26 | ||||||||||
| R magnitude | 19.00 (0.3) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.25 (0.02) | 19.25 (0.02) | 19.31 (0.05) | ||||||||
| g magnitude | 19.20 (0.01) | 19.20 (0.01) | 19.20 (0.03) | ||||||||
| r magnitude | 19.37 (0.01) | 19.37 (0.01) | 19.34 (0.02) | ||||||||
| i magnitude | 19.54 (0.02) | 19.54 (0.02) | 19.52 (0.03) | ||||||||
| z magnitude | 19.72 (0.07) | 19.72 (0.07) | 19.75 (0.08) | ||||||||
| G magnitude | 19.26 (0.05) | 19.30 | 19.26 (0.005) | ||||||||
| BP magnitude | 19.31 (0.05) | 19.44 | |||||||||
| RP magnitude | 19.31 (0.06) | 19.20 | |||||||||
| Pan g magnitude | 19.21 (0.007) | ||||||||||
| Pan r magnitude | 19.37 (0.01) | ||||||||||
| Pan i magnitude | 19.54 (0.02) | ||||||||||
| Pan z magnitude | 19.72 (0.02) | ||||||||||
| Pan y magnitude | 19.88 (0.01) | ||||||||||
| E(B-V) | 0.018 | ||||||||||
* Constant surface field
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