All names: KUV 08377+4007, GALEX J084101.3+395617, PG0837+401, UCAC4 650-048272, KUV 345-28, TIC 241187484, FBS B 54, LAMOST J084101.31+395618.2, LAMOST J084101.35+395617.5, PG 0837+401, 2MASS J08410129+3956181, Gaia EDR3 911573758803336960, Gaia DR2 911573758803336960, SDSS J084101.30+395618.1, Gaia DR3 911573758803336960, FBS 0837+401
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 08 41 01.32 (0.03) | 08 41 01.31 | 08 41 01.31 (0.03) | ||
| Declination | 39 56 18.08 (0.02) | 39 56 18.31 | 39 56 18.13 (0.02) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 29380.0 (140) | |||
| log(g) | [cgs] | 5.69 (0.03) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.72 (0.04) | 0.66 (0.06) | 0.72 (0.04) | |
| Distance | [pc] | 1385.43 (84) | 1519.99 (146) | 1385.43 (84) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 2.885 (0.04) | 2.82 (0.09) | 2.885 (0.04) | |
| Proper motion (declination) | [mas/yr] | -2.902 (0.04) | -2.846 (0.07) | -2.902 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.26 (0.005) | ||||
| V magnitude | 15.51 (0.005) | ||||
| R magnitude | 15.64 (0.005) | ||||
| I magnitude | 15.90 (0.01) | ||||
| J magnitude | 16.16 (0.09) | 16.16 (0.09) | |||
| H magnitude | 15.82 (0.1) | 15.82 (0.1) | |||
| K magnitude | 15.62 | ||||
| u magnitude | 15.06 (0.004) | 15.05 (0.01) | |||
| g magnitude | 15.18 (0.003) | 15.20 (0.02) | |||
| r magnitude | 15.64 (0.004) | 15.63 (0.02) | |||
| i magnitude | 15.96 (0.004) | 15.94 (0.02) | |||
| z magnitude | 16.28 (0.008) | 16.26 (0.02) | |||
| G magnitude | 15.43 (0.003) | 15.45 (0.0006) | 15.43 (0.003) | ||
| BP magnitude | 15.30 (0.004) | 15.26 (0.009) | |||
| RP magnitude | 15.67 (0.005) | 15.67 (0.003) | |||
| Pan g magnitude | 15.27 (0.004) | ||||
| Pan r magnitude | 15.66 (0.002) | ||||
| Pan i magnitude | 16.01 (0.002) | ||||
| Pan z magnitude | 16.27 (0.004) | ||||
| Pan y magnitude | 16.45 (0.004) | ||||
| 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.