All names: LAMOSTJ055348.85+325601.7, ATO J088.4535+32.9338, Lan 646, 2MASS J05534886+3256017, UCAC4 615-028122, SDSS J055348.86+325601.7, TIC 312220636, LAMOST J055348.85+325601.7, Gaia DR3 3451217092350738944, Gaia DR2 3451217092350738944
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 05 53 48.86 | 05 53 48.86 (0.02) | ||
| Declination | 32 56 01.75 | 32 56 01.84 (0.02) | ||
| Spectral type | sdB | sdBHe5 | ||
| Effective temperature | [K] | 30500.0 (80) | ||
| log(g) | [cgs] | 5.66 (0.02) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 1.54 (0.04) | 1.46 (0.03) | |
| Distance | [pc] | 647.63 (17) | 685.12 (12) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -1.985 (0.08) | -2.006 (0.03) | |
| Proper motion (declination) | [mas/yr] | -5.684 (0.06) | -5.681 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.12 (0.04) | |||
| V magnitude | 14.18 (0.07) | |||
| R magnitude | 14.35 (0.09) | |||
| I magnitude | ||||
| J magnitude | 14.07 (0.03) | 14.07 (0.03) | ||
| H magnitude | 14.13 (0.05) | 14.13 (0.05) | ||
| K magnitude | 14.05 (0.05) | 14.05 (0.05) | ||
| u magnitude | 14.86 (0.008) | 14.86 (0.008) | ||
| g magnitude | 14.80 (0.005) | 14.80 (0.005) | ||
| r magnitude | 16.29 (0.02) | 16.29 (0.02) | ||
| i magnitude | 15.22 (0.01) | 15.22 (0.01) | ||
| z magnitude | 15.26 (0.008) | 15.26 (0.008) | ||
| G magnitude | 14.17 (0.004) | 14.13 (0.004) | ||
| BP magnitude | 14.09 (0.01) | |||
| RP magnitude | 14.16 (0.02) | |||
| Pan g magnitude | 14.12 (0.008) | |||
| Pan r magnitude | 14.26 (0.01) | |||
| Pan i magnitude | 14.47 (0.004) | |||
| Pan z magnitude | 14.64 (0.01) | |||
| Pan y magnitude | 14.78 (0.02) | |||
| E(B-V) | 0.187 | |||
* 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.