SDSS J143812.57+001641.5
All names: Gaia DR3 3654681955288522752, SDSS J143812.57+001641.5, 2QZ J143812.5+001641, Gaia EDR3 3654681955288522752, MGC 65547, GALEX J143812.6+001642, Gaia DR2 3654681955288522752
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Harris et al. 2003 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 14 38 12.58 (0.3) | 14 38 12.58 | 14 38 12.58 (0.4) | 14 38 12.58 (0.3) | 14 38 12.57 | ||||
| Declination | 00 16 41.65 (0.4) | 00 16 41.59 | 00 16 41.65 (0.7) | 00 16 41.68 (0.4) | 00 16 41.58 | ||||
| Spectral type | sdB | sdB | sdB | sdB | SDB | ||||
| Effective temperature | [K] | 19039.0 | 23417.0 | 30638.0 (708) | |||||
| log(g) | [cgs] | 6.77 | 6.92 | 5.05 (0.07) | |||||
| Mass | [M☉] | 0.227 | 0.24 | ||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | -0.26 (0.5) | -0.83 (0.7) | ||||||
| Distance | [pc] | ||||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.154185575 (0.5) | 0.947058257 (1) | 0.154 (0.5) | 0.5 | ||||
| Proper motion (declination) | [mas/yr] | -1.713133602 (0.5) | -2.51645896 (1) | -1.713 (0.5) | 0.1 | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 19.09 | ||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 18.74 (0.02) | 18.90 | 18.72 (0.02) | 18.90 (0.03) | |||||
| g magnitude | 18.88 (0.009) | 19.11 | 18.88 (0.009) | 19.11 (0.02) | |||||
| r magnitude | 19.15 (0.01) | 19.52 | 19.15 (0.01) | 19.52 (0.02) | |||||
| i magnitude | 19.41 (0.02) | 19.83 | 19.44 (0.02) | 19.83 (0.03) | |||||
| z magnitude | 19.70 (0.1) | 20.03 | 19.68 (0.1) | 20.02 (0.1) | |||||
| G magnitude | 19.40 (0.03) | 19.44 | 19.40 (0.006) | ||||||
| BP magnitude | 19.17 (0.03) | 19.01 | |||||||
| RP magnitude | 19.57 (0.08) | 19.56 | |||||||
| Pan g magnitude | |||||||||
| Pan r magnitude | |||||||||
| Pan i magnitude | |||||||||
| Pan z magnitude | |||||||||
| Pan y magnitude | |||||||||
| E(B-V) | |||||||||
* Constant surface field
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