All names: 2MASS J04484720-0400168, LAMOST J044847.21-040016.9, TIC 176380024, SDSS J044847.21-040017.2, UCAC4 430-007349, Gaia DR3 3200857538788110080, Gaia DR2 3200857538788110080, LAMOSTJ044847.21-040016.9, Gaia EDR3 3200857538788110080
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 04 48 47.22 (0.03) | 04 48 47.21 | 04 48 47.21 (0.03) | ||
| Declination | -04 00 17.50 (0.02) | -04 00 16.99 | -04 00 16.99 (0.02) | ||
| Spectral type | sdB | sdB | |||
| Effective temperature | [K] | 29457.0 (160) | |||
| log(g) | [cgs] | 5.58 (0.02) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.98 (0.04) | 1.73 (0.06) | 1.98 (0.04) | |
| Distance | [pc] | 505.51 (11) | 577.27 (21) | 505.51 (11) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | 8.912 (0.04) | 9.114 (0.1) | 8.912 (0.04) | |
| Proper motion (declination) | [mas/yr] | -31.468 (0.04) | -31.505 (0.08) | -31.468 (0.04) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.21 (0.06) | ||||
| V magnitude | 13.37 (0.03) | ||||
| R magnitude | 13.67 (0.08) | ||||
| I magnitude | |||||
| J magnitude | 13.94 (0.03) | 13.94 (0.03) | |||
| H magnitude | 14.05 (0.04) | 14.05 (0.04) | |||
| K magnitude | 14.08 (0.05) | 14.08 (0.05) | |||
| u magnitude | 12.94 (0.003) | ||||
| g magnitude | 14.69 (0.01) | ||||
| r magnitude | 13.54 (0.003) | ||||
| i magnitude | 13.89 (0.003) | ||||
| z magnitude | 14.20 (0.004) | ||||
| G magnitude | 13.35 (0.003) | 13.36 (0.0005) | 13.35 (0.003) | ||
| BP magnitude | 13.21 (0.003) | 13.17 (0.01) | |||
| RP magnitude | 13.60 (0.004) | 13.59 (0.002) | |||
| Pan g magnitude | 13.18 | ||||
| Pan r magnitude | 13.60 (0.004) | ||||
| Pan i magnitude | 13.95 (0.006) | ||||
| Pan z magnitude | 14.21 (0.004) | ||||
| Pan y magnitude | 14.37 (0.002) | ||||
| E(B-V) | 0.031 | ||||
* 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.