All names: Gaia DR3 869050009160765056, Gaia EDR3 869050009160765056, GALEXJ07380+2624, LAMOST J073804.54+262444.8, SDSS J073804.55+262444.9, Gaia DR2 869050009160765056, UCAC4 583-039836, 2MASS J07380455+2624449, GALEX J073804.5+262444
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 07 38 04.55 (0.04) | 07 38 04.55 | 07 38 04.55 (0.04) | ||
| Declination | 26 24 44.77 (0.04) | 26 24 44.14 | 26 24 44.92 (0.04) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 29740.0 (400) | |||
| log(g) | [cgs] | 5.48 (0.06) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.85 (0.04) | 0.89 (0.05) | 0.85 (0.04) | |
| Distance | [pc] | 1179.25 (62) | 1123.85 (66) | 1179.25 (62) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -1.52 (0.05) | -1.656 (0.09) | -1.52 (0.05) | |
| Proper motion (declination) | [mas/yr] | -9.32 (0.04) | -9.25 (0.08) | -9.32 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 14.35 (0.02) | ||||
| V magnitude | 14.55 (0.07) | ||||
| R magnitude | 14.90 (0.1) | ||||
| I magnitude | |||||
| J magnitude | 15.23 (0.04) | 15.23 (0.04) | |||
| H magnitude | 15.29 (0.07) | 15.29 (0.07) | |||
| K magnitude | 15.26 (0.1) | 15.26 (0.1) | |||
| u magnitude | 14.41 (0.005) | 14.41 (0.005) | |||
| g magnitude | 14.63 (0.004) | 14.37 (0.04) | |||
| r magnitude | 14.93 (0.004) | 14.77 (0.03) | |||
| i magnitude | 15.26 (0.006) | 15.13 (0.1) | |||
| z magnitude | 15.41 (0.006) | 15.41 (0.006) | |||
| G magnitude | 14.57 (0.003) | 14.58 (0.0007) | 14.57 (0.003) | ||
| BP magnitude | 14.43 (0.003) | 14.36 (0.008) | |||
| RP magnitude | 14.83 (0.004) | 14.83 (0.002) | |||
| Pan g magnitude | 14.41 (0.003) | ||||
| Pan r magnitude | 14.81 (0.003) | ||||
| Pan i magnitude | 15.16 (0.002) | ||||
| Pan z magnitude | 15.43 (0.005) | ||||
| Pan y magnitude | 15.60 (0.002) | ||||
| E(B-V) | 0.036 | ||||
* 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.