All names: Gaia DR2 5176530709556833792, Gaia DR3 5176530709556833792, TIC 4621320, SDSS J023032.65-081439.5, SDSSJ023032.66-081439.6, Gaia EDR3 5176530709556833792, 2MASS J02303265-0814395, SDSS J023032.65-081439.4, [BGK2006] J023032.65-081439.5, SDSS J023032.66-081439.6, GALEX J023032.6-081438
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 02 30 32.66 (0.05) | 02 30 32.66 | 02 30 32.66 | 02 30 32.66 (0.09) | 02 30 32.66 (0.05) | 02 30 32.65 | |||
| Declination | -08 14 39.69 (0.05) | -08 14 39.63 | -08 14 39.62 | -08 14 39.68 (0.07) | -08 14 39.53 (0.05) | -08 14 39.52 | |||
| Spectral type | sdB | sdB | SDB | ||||||
| Effective temperature | [K] | 7423.0 (11) | |||||||
| log(g) | [cgs] | 5.00 (0.002) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.13 (0.06) | 0.26 (0.1) | 0.26 (0.1) | 0.13 (0.06) | ||||
| Distance | [pc] | 7718.28 (3643) | 3795.07 (1704) | 3795.07 (1704) | 7716.05 (3638) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | 0.776013618 (0.06) | 0.628 (0.1) | 0.628 (0.1) | 0.776 (0.06) | 1.8 | |||
| Proper motion (declination) | [mas/yr] | -9.644244191 (0.06) | -9.635 (0.1) | -9.635 (0.1) | -9.644 (0.06) | -9.8 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | |||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.09 (0.07) | 16.09 (0.07) | |||||||
| H magnitude | 15.87 (0.1) | 15.87 (0.1) | |||||||
| K magnitude | 15.99 (0.3) | 15.99 (0.3) | |||||||
| u magnitude | 16.32 (0.006) | 16.32 (0.006) | 16.32 (0.006) | 16.34 (0.02) | |||||
| g magnitude | 15.86 (0.004) | 15.86 (0.004) | 15.86 (0.004) | 15.87 (0.01) | |||||
| r magnitude | 16.15 (0.004) | 16.15 (0.004) | 16.15 (0.004) | 16.18 (0.02) | |||||
| i magnitude | 16.42 (0.005) | 16.42 (0.005) | 16.42 (0.005) | 16.44 (0.01) | |||||
| z magnitude | 16.60 (0.01) | 16.61 (0.01) | 16.61 (0.01) | 16.65 (0.02) | |||||
| G magnitude | 16.03 (0.004) | 16.05 (0.002) | 16.05 | 16.03 (0.003) | |||||
| BP magnitude | 15.98 (0.004) | 15.95 (0.006) | 15.95 | ||||||
| RP magnitude | 16.11 (0.007) | 16.12 (0.006) | 16.12 | ||||||
| Pan g magnitude | 15.90 (0.007) | 15.90 (0.007) | |||||||
| Pan r magnitude | 16.20 (0.003) | 16.20 (0.003) | |||||||
| Pan i magnitude | 16.46 (0.004) | 16.46 (0.004) | |||||||
| Pan z magnitude | 16.64 (0.004) | 16.64 (0.004) | |||||||
| Pan y magnitude | 16.70 (0.006) | 16.70 (0.006) | |||||||
| E(B-V) | 0.024 | ||||||||
* 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.