All names: SDSS J155230.95+001222.8, 2MASS J15523094+0012229, TIC 272756758, Gaia DR2 4410414990424107008, Gaia EDR3 4410414990424107008, Gaia DR3 4410414990424107008, SDSS J155230.94+001222.7
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 15 52 30.94 (0.05) | 15 52 30.94 | 15 52 30.94 (0.08) | 15 52 30.95 (0.05) | 15 52 30.94 | |||
| Declination | 00 12 22.71 (0.05) | 00 12 22.79 | 00 12 22.71 (0.05) | 00 12 22.79 (0.05) | 00 12 22.78 | |||
| Spectral type | B/sdB | SD: | ||||||
| Effective temperature | [K] | 7649.0 (14) | ||||||
| log(g) | [cgs] | 5.00 (0.004) | ||||||
| Mass | [M☉] | |||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.11 (0.07) | 0.11 (0.09) | 0.11 (0.07) | ||||
| Distance | [pc] | 8950.87 (5582) | 9191.72 (7775) | 8952.55 (5586) | ||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | -6.902737055 (0.07) | -7.161517355 (0.2) | -6.903 (0.07) | -1.5 | |||
| Proper motion (declination) | [mas/yr] | -5.183670672 (0.07) | -5.221207123 (0.1) | -5.184 (0.07) | -0.3 | |||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | 16.74 (0.1) | |||||||
| H magnitude | 16.49 (0.2) | |||||||
| K magnitude | ||||||||
| u magnitude | 17.48 (0.009) | 17.48 (0.009) | 17.48 (0.02) | |||||
| g magnitude | 16.69 (0.004) | 16.69 (0.004) | 16.70 (0.01) | |||||
| r magnitude | 16.93 (0.005) | 16.93 (0.005) | 16.93 (0.01) | |||||
| i magnitude | 17.15 (0.005) | 17.15 (0.005) | 17.14 (0.01) | |||||
| z magnitude | 17.31 (0.01) | 17.31 (0.01) | 17.28 (0.02) | |||||
| G magnitude | 16.82 (0.003) | 16.84 | 16.82 (0.003) | |||||
| BP magnitude | 16.83 (0.003) | 16.82 | ||||||
| RP magnitude | 16.80 (0.007) | 16.82 | ||||||
| Pan g magnitude | 16.75 (0.003) | |||||||
| Pan r magnitude | 16.95 (0.002) | |||||||
| Pan i magnitude | 17.16 (0.002) | |||||||
| Pan z magnitude | 17.30 (0.004) | |||||||
| Pan y magnitude | 17.32 (0.007) | |||||||
| E(B-V) | 0.092 | |||||||
* Constant surface field
Spectra without link are available upon request
The Montreal White Dwarf Database is produced and maintained by Prof. Patrick Dufour (Université de Montréal) and Dr. Simon Blouin (University of Victoria). Please send database updates, corrections, suggestions or bug reports to patrick.dufour@umontreal.ca.