US 2937
All names: GALEX J114659.6+303243, SDSS J114659.63+303243.54, SDSS J114659.63+303243.5, US 2937, Gaia DR2 4021228036425844480, Gaia DR3 4021228036425844480, Gaia EDR3 4021228036425844480
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Genest-Beaulieu & Bergeron 2019 (spectroscopic) | MWDD HE | Gaia DR2 | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 11 46 59.63 (0.4) | 11 46 59.63 | 11 46 59.63 (0.5) | 11 46 59.63 (0.4) | |||||
| Declination | 30 32 43.58 (0.4) | 30 32 43.55 | 30 32 43.58 (0.5) | 30 32 43.62 (0.4) | |||||
| Spectral type | DB: | DB: | DB | ||||||
| Effective temperature | [K] | 44244.0 | 14960.0 | 36957.0 (1000) | |||||
| log(g) | [cgs] | 6.20 | 8.25 | 7.60 (0.05) | |||||
| Mass | [M☉] | 0.206 | 0.746 | 0.488 (0.006) | |||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | 0.3110 | |||||||
| log(H/He) | -2 | ||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| log(N/He) | |||||||||
| log(O/He) | |||||||||
| log(Na/He) | |||||||||
| log(Mg/He) | |||||||||
| log(Al/He) | |||||||||
| log(Si/He) | |||||||||
| log(P/He) | |||||||||
| log(S/He) | |||||||||
| log(Cl/He) | |||||||||
| log(Sc/He) | |||||||||
| log(Ti/He) | |||||||||
| log(V/He) | |||||||||
| log(Cr/He) | |||||||||
| log(Mn/He) | |||||||||
| log(Fe/He) | |||||||||
| log(Co/He) | |||||||||
| log(Ni/He) | |||||||||
| log(Cu/He) | |||||||||
| log(Zn/He) | |||||||||
| log(Ga/He) | |||||||||
| log(Ge/He) | |||||||||
| log(Sr/He) | |||||||||
| Parallax | [mas] | -1.00 (0.5) | -2.39 (0.7) | ||||||
| Distance | [pc] | ||||||||
| Composition | He | ||||||||
| Proper motion (right ascension) | [mas/yr] | -2.6090767 (0.5) | -0.98870994 (1) | -2.609 (0.5) | |||||
| Proper motion (declination) | [mas/yr] | -2.954637061 (0.4) | -3.822406858 (1) | -2.955 (0.4) | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 19.90 | ||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | |||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 19.09 (0.02) | 19.09 (0.02) | 19.09 (0.02) | ||||||
| g magnitude | 19.49 (0.01) | 19.49 (0.01) | 19.49 (0.01) | ||||||
| r magnitude | 20.00 (0.02) | 20.00 (0.02) | 20.00 (0.02) | ||||||
| i magnitude | 20.49 (0.04) | 20.49 (0.04) | 20.49 (0.04) | ||||||
| z magnitude | 20.79 (0.2) | 20.79 (0.2) | 20.79 (0.2) | ||||||
| G magnitude | 19.73 (0.06) | 19.78 | 19.73 (0.007) | ||||||
| BP magnitude | 19.57 (0.06) | 19.48 | |||||||
| RP magnitude | 20.17 (0.1) | 19.76 | |||||||
| Pan g magnitude | 19.55 (0.01) | ||||||||
| Pan r magnitude | 19.99 (0.01) | ||||||||
| Pan i magnitude | 20.35 (0.03) | ||||||||
| Pan z magnitude | 20.59 (0.03) | ||||||||
| Pan y magnitude | 19.30 (0) | ||||||||
| E(B-V) | |||||||||
* Constant surface field
Special notes:
Spectra
Controls
Normalize at:
Normalize by mean flux
Range:
x:
to
y:
to
Spectra available:
Spectra without link are available upon request
Absorption lines
Photometric filters
BVRI
ugriz
Photometric fit
