All names: LAMOSTJ054456.61+354935.9, Gaia DR2 3455626713794023680, LAMOST J054456.61+354935.9, Gaia DR3 3455626713794023680, 2MASS J05445660+3549360, UCAC4 630-027754, TIC 116945085
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 05 44 56.62 | 05 44 56.61 (0.03) | ||
| Declination | 35 49 35.94 | 35 49 36.01 (0.03) | ||
| Spectral type | He-sdO | sdOBHe | ||
| Effective temperature | [K] | 45570.0 (180) | ||
| log(g) | [cgs] | 5.60 (0.04) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.88 (0.06) | 0.82 (0.03) | |
| Distance | [pc] | 1140.25 (72) | 1216.10 (51) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 5.88 (0.1) | 5.856 (0.04) | |
| Proper motion (declination) | [mas/yr] | -6.086 (0.07) | -6.182 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.45 (0.04) | |||
| V magnitude | 15.36 (0.08) | |||
| R magnitude | 15.34 (0.06) | |||
| I magnitude | ||||
| J magnitude | 15.14 (0.04) | 15.14 (0.04) | ||
| H magnitude | 15.19 (0.08) | 15.19 (0.08) | ||
| K magnitude | 15.26 (0.1) | 15.26 (0.1) | ||
| u magnitude | ||||
| g magnitude | 15.29 (0.08) | |||
| r magnitude | 15.30 (0.1) | |||
| i magnitude | 15.20 (0.01) | |||
| z magnitude | ||||
| G magnitude | 15.26 (0.0008) | 15.23 (0.003) | ||
| BP magnitude | 15.24 (0.008) | |||
| RP magnitude | 15.12 (0.003) | |||
| Pan g magnitude | 15.30 (0.002) | |||
| Pan r magnitude | 15.34 (0.003) | |||
| Pan i magnitude | 15.46 (0.001) | |||
| Pan z magnitude | 15.59 (0.005) | |||
| Pan y magnitude | 15.67 (0.004) | |||
| E(B-V) | 0.327 | |||
* 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.