All names: SDSS J135707.35+010454.4, SDSS J135707.34+010454.5, 2MASS J13570736+0104551, SDSS J135707.35+010454.5, SDSS J135707.34+010454.6, USNO-B1.0 0910-00227859, PSO J135707.349+010454.651, Gaia DR2 3663858273176025728, SDSS J135707.35+010454.52
| Parameter | Unit | Pan-STARRS DR1 | Gaia DR2 | Kepler et al. 2015 | SDSS DR12 | SDSS DR10 | Simbad | Eisenstein et al. 2006 | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 13 57 07.34 (0.1) | 13 57 07.35 | 13 57 07.35 | 13 57 07.35 | 13 57 07.35 | 13 57 07.35 | |||
| Declination | 01 04 54.44 (0.08) | 01 04 54.57 | 01 04 54.57 | 01 04 54.59 | 01 04 54.55 | 01 04 54.55 | |||
| Spectral type | DAB | sdB | SDB | SDB | |||||
| Effective temperature | [K] | 11220.0 (52) | 12287.0 (66) | 12159.0 (67) | |||||
| log(g) | [cgs] | 7.00 (0.01) | 7.01 (0.02) | 7.01 (0.02) | |||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.02 (0.1) | |||||||
| Distance | [pc] | 53821.03 (369689) | |||||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -7.2690779315 (0.2) | -0.2 | -0.2 | |||||
| Proper motion (declination) | [mas/yr] | -6.5140631251 (0.2) | -4.8 | -4.8 | |||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 16.97 | ||||||||
| V magnitude | 17.29 | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.62 | ||||||||
| H magnitude | |||||||||
| K magnitude | |||||||||
| u magnitude | 17.25 (0.02) | 17.24 (0.008) | 17.24 (0.008) | 17.23 | 17.24 (0.01) | 17.24 (0.01) | |||
| g magnitude | 17.25 (0.01) | 17.24 (0.005) | 17.24 (0.005) | 17.23 | 17.24 (0.01) | 17.24 (0.01) | |||
| r magnitude | 17.35 (0.02) | 17.35 (0.005) | 17.35 (0.005) | 17.34 | 17.34 (0.01) | 17.34 (0.01) | |||
| i magnitude | 17.39 (0.01) | 17.39 (0.006) | 17.39 (0.006) | 17.42 | 17.44 (0.01) | 17.44 (0.01) | |||
| z magnitude | 17.44 (0.02) | 17.43 (0.01) | 17.43 (0.01) | 17.39 | 17.40 (0.02) | 17.40 (0.02) | |||
| G magnitude | 17.25 | ||||||||
| BP magnitude | 17.24 | ||||||||
| RP magnitude | 17.09 | ||||||||
| Pan g magnitude | 17.28 (0.006) | ||||||||
| Pan r magnitude | 17.34 (0.007) | ||||||||
| Pan i magnitude | 17.41 (0.004) | ||||||||
| Pan z magnitude | 17.48 (0.004) | ||||||||
| Pan y magnitude | 17.48 (0.01) |
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour at Université de Montréal. Please send database updates, corrections, suggestions or bug reports to dufourpa@astro.umontreal.ca.