All names: 2MASS J08453566+1941502, Gaia DR3 661156102927711104, LAMOST J084535.73+194149.6, LAMOST J084535.66+194150.2, UCAC4 549-045719, Gaia DR2 661156102927711104, TIC 184914315, GALEX J084535.5+194150, LAMOST J084535.65+194150.6, LB400, Cl* NGC 2632 VL 1724, LB 400, UCAC2 38791891
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 08 45 35.73 | 08 45 35.66 (0.02) | ||
| Declination | 19 41 49.64 | 19 41 50.27 (0.01) | ||
| Spectral type | sdB | sdBHe7 | ||
| Effective temperature | [K] | 25258.0 (530) | ||
| log(g) | [cgs] | 5.21 (0.06) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.96 (0.06) | 1.01 (0.03) | |
| Distance | [pc] | 1043.41 (60) | 990.00 (30) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 2.586 (0.09) | 2.664 (0.03) | |
| Proper motion (declination) | [mas/yr] | -29.304 (0.06) | -29.373 (0.02) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.18 (0.01) | |||
| V magnitude | 13.28 (0.02) | |||
| R magnitude | 13.51 (0.1) | |||
| I magnitude | ||||
| J magnitude | 13.67 (0.03) | 13.67 (0.03) | ||
| H magnitude | 13.75 (0.04) | 13.75 (0.04) | ||
| K magnitude | 13.81 (0.04) | 13.81 (0.04) | ||
| u magnitude | 14.61 (0.007) | |||
| g magnitude | 13.42 (0.002) | 13.13 (0.02) | ||
| r magnitude | 13.57 (0.002) | 13.49 (0.01) | ||
| i magnitude | 14.63 (0.009) | 13.82 (0.04) | ||
| z magnitude | 14.41 (0.007) | |||
| G magnitude | 13.26 (0.0004) | 13.25 (0.003) | ||
| BP magnitude | 13.12 (0.004) | |||
| RP magnitude | 13.42 (0.001) | |||
| Pan g magnitude | 13.33 | |||
| Pan r magnitude | 13.47 (0.001) | |||
| Pan i magnitude | 13.76 (0.006) | |||
| Pan z magnitude | 14.00 (0.004) | |||
| Pan y magnitude | 14.13 (0.005) | |||
| E(B-V) | 0.028 | |||
* 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.