GALEX 2679934274205909976
All names: SDSS J155256.55+304015.9, SDSS J155256.56+304015.9, USNO-A2.0 1200-07680773, Gaia EDR3 1321150116551735040, Gaia DR2 1321150116551735040, GALEX 2679934274205909976, Gaia DR3 1321150116551735040
| 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 | 15 52 56.56 (0.2) | 15 52 56.56 | 15 52 56.56 (0.3) | 15 52 56.55 (0.3) | 15 52 56.56 | ||||||
| Declination | 30 40 15.96 (0.2) | 30 40 15.95 | 30 40 15.96 (0.2) | 30 40 15.96 (0.2) | 30 40 15.94 | ||||||
| Spectral type | DC:DB:DC | DC:DB:DC | DC | DC:DB:DC | DC: | ||||||
| Effective temperature | [K] | 10379.0 | 10980.0 | 12438.0 (387) | |||||||
| log(g) | [cgs] | 7.52 | 7.51 | 8.41 (0.4) | |||||||
| Mass | [M☉] | 0.365 | 0.346 | ||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | 0.3238 | 0.2869 | ||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 2.67 (0.2) | 2.37 (0.3) | 2.37 (0.3) | |||||||
| Distance | [pc] | 375.10 (33) | 422.70 (52) | 422.71 (52) | |||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | 8.747836408 (0.2) | 8.263111739 (0.6) | 8.263 (0.6) | |||||||
| Proper motion (declination) | [mas/yr] | 0.692401371 (0.2) | 0.384455514 (0.5) | 0.384 (0.5) | |||||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | 18.50 (0.3) | ||||||||||
| V magnitude | |||||||||||
| R magnitude | 19.30 (0.3) | ||||||||||
| I magnitude | |||||||||||
| J magnitude | |||||||||||
| H magnitude | |||||||||||
| K magnitude | |||||||||||
| u magnitude | 19.41 (0.03) | 19.41 (0.03) | 19.40 (0.03) | ||||||||
| g magnitude | 19.44 (0.01) | 19.44 (0.01) | 19.46 (0.02) | ||||||||
| r magnitude | 19.61 (0.01) | 19.61 (0.01) | 19.60 (0.02) | ||||||||
| i magnitude | 19.80 (0.02) | 19.80 (0.02) | 19.79 (0.02) | ||||||||
| z magnitude | 19.99 (0.08) | 19.99 (0.08) | 20.00 (0.08) | ||||||||
| G magnitude | 19.48 (0.03) | 19.54 | 19.54 (0.004) | ||||||||
| BP magnitude | 19.52 (0.03) | 19.50 | |||||||||
| RP magnitude | 19.50 (0.05) | 19.54 | |||||||||
| Pan g magnitude | 19.46 (0.01) | ||||||||||
| Pan r magnitude | 19.61 (0.01) | ||||||||||
| Pan i magnitude | 19.80 (0.02) | ||||||||||
| Pan z magnitude | 19.99 (0.03) | ||||||||||
| Pan y magnitude | 20.04 (0.003) | ||||||||||
| E(B-V) | 0.026 | ||||||||||
* 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
