All names: GALEX J045230.5-373018, EC04507-3735, UCAC4 263-005528, EC 04507-3735, Gaia EDR3 4818420700104434432, 2MASS J04523063-3730180, TIC 77437193, Gaia DR2 4818420700104434432, Gaia DR3 4818420700104434432
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 04 52 30.65 (0.03) | 04 52 30.65 | 04 52 30.63 (0.04) | ||
| Declination | -37 30 17.86 (0.04) | -37 30 18.32 | -37 30 17.80 (0.04) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | ||||
| log(g) | [cgs] | ||||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 0.49 (0.04) | 0.35 (0.07) | 0.49 (0.04) | |
| Distance | [pc] | 2049.60 (177) | 2886.84 (544) | 2049.60 (177) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 15.226 (0.04) | 15.567 (0.1) | 15.226 (0.04) | |
| Proper motion (declination) | [mas/yr] | -3.396 (0.05) | -3.27 (0.1) | -3.396 (0.05) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 15.87 (0.01) | ||||
| V magnitude | 16.08 (0.07) | ||||
| R magnitude | 15.77 (0.2) | ||||
| I magnitude | |||||
| J magnitude | 16.72 (0.1) | 16.72 (0.1) | |||
| H magnitude | 16.24 | ||||
| K magnitude | 16.57 | ||||
| u magnitude | |||||
| g magnitude | 15.80 (0.05) | ||||
| r magnitude | 16.32 (0.07) | ||||
| i magnitude | 16.60 (0.01) | ||||
| z magnitude | |||||
| G magnitude | 16.02 (0.003) | 16.05 (0.002) | 16.02 (0.003) | ||
| BP magnitude | 15.86 (0.004) | 15.81 (0.01) | |||
| RP magnitude | 16.34 (0.007) | 16.34 (0.005) | |||
| Pan g magnitude | |||||
| Pan r magnitude | |||||
| Pan i magnitude | |||||
| Pan z magnitude | |||||
| Pan y magnitude | |||||
| E(B-V) | 0.010 | ||||
* 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.