SDSS J093045.62+304819.7
All names: GALEX J093045.5+304817, SDSS J093045.62+304819.5, Gaia EDR3 697778082173570816, Gaia DR2 697778082173570816, Gaia DR3 697778082173570816, SDSS J093045.62+304819.7, SDSS J093045.61+304819.7
| Parameter | Unit | Gaia EDR3 | SDSS DR12 | MWDD H | MWDD HE | Gaia DR2 | Stilism | Vincent et al. 2024 | Simbad | Kleinman et al. 2013 | Vincent et al. 2023 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 09 30 45.59 (0.4) | 09 30 45.62 | 09 30 45.59 (0.6) | 09 30 45.59 | 09 30 45.63 (0.4) | 09 30 45.62 | |||||
| Declination | 30 48 19.13 (0.2) | 30 48 19.71 | 30 48 19.16 (0.4) | 30 48 19.13 | 30 48 19.83 (0.2) | 30 48 19.74 | |||||
| Spectral type | DC: | DC: | DC | DC | DC: | DC | |||||
| Effective temperature | [K] | 7249.0 | 7073.0 | 7027.0 (332) | 10088.0 (20) | ||||||
| log(g) | [cgs] | 7.87 | 7.79 | 8.14 (0.1) | 9.57 (0.4) | ||||||
| Mass | [M☉] | 0.52 | 0.455 | 0.665 (0.1) | |||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 1.1630 | 1.1600 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 6.47 (0.5) | 4.97 (0.8) | 6.47 | 6.47 (0.5) | ||||||
| Distance | [pc] | 154.48 (11) | 201.12 (33) | 154.48 | 154.48 (11) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -31.55170658 (0.5) | -33.90350102 (0.9) | -31.552 (0.5) | |||||||
| Proper motion (declination) | [mas/yr] | -43.37115445 (0.3) | -42.09161691 (0.7) | -43.371 (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 | 20.25 (0.06) | 20.25 (0.06) | 20.32 (0.05) | ||||||||
| g magnitude | 19.83 (0.02) | 19.83 (0.01) | 19.80 (0.02) | ||||||||
| r magnitude | 19.65 (0.02) | 19.65 (0.02) | 19.67 (0.02) | ||||||||
| i magnitude | 19.65 (0.02) | 19.65 (0.02) | 19.60 (0.03) | ||||||||
| z magnitude | 19.74 (0.08) | 19.74 (0.08) | 19.69 (0.08) | ||||||||
| G magnitude | 19.63 (0.04) | 19.70 | 19.63 | 19.63 (0.004) | |||||||
| BP magnitude | 19.83 (0.04) | 19.83 | |||||||||
| RP magnitude | 19.39 (0.05) | 19.33 | |||||||||
| Pan g magnitude | |||||||||||
| Pan r magnitude | |||||||||||
| Pan i magnitude | |||||||||||
| Pan z magnitude | |||||||||||
| Pan y magnitude | |||||||||||
| E(B-V) | 0.007 | ||||||||||
* Constant surface field
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