All names: SDSS J232855.00+023924.58, Gaia DR2 2647398050045368576, Gaia EDR3 2647398050045368576, Gaia DR3 2647398050045368576, SDSS J232855.00+023924.5, SDSS J232854.99+023924.5
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Gaia DR2 | Stilism | Kepler et al. 2016 | Simbad |
|---|---|---|---|---|---|---|---|---|
| Right ascension | 23 28 55.00 (0.3) | 23 28 55.00 | 23 28 55.00 (0.3) | 23 28 54.99 (0.3) | ||||
| Declination | 02 39 24.56 (0.2) | 02 39 24.57 | 02 39 24.57 (0.2) | 02 39 24.72 (0.2) | ||||
| Spectral type | sdA | sdA | ||||||
| Effective temperature | [K] | 6868.0 (30) | ||||||
| log(g) | [cgs] | 5.61 (0.1) | ||||||
| Mass | [M☉] | 0.14509 (0.0003) | ||||||
| log(Luminosity) | [L☉] | |||||||
| Cooling age | [Gyr] | |||||||
| log(H/He) | ||||||||
| log(C/He) | ||||||||
| log(Ca/He) | ||||||||
| log(Ca/H) | ||||||||
| Parallax | [mas] | 0.16 (0.3) | -0.03 (0.3) | 0.16 (0.3) | ||||
| Distance | [pc] | 6168.66 (11297) | 6169.03 (11299) | |||||
| Composition | ||||||||
| Proper motion (right ascension) | [mas/yr] | 4.750317402 (0.3) | 3.560139175 (0.6) | 4.75 (0.3) | ||||
| Proper motion (declination) | [mas/yr] | -9.634425313 (0.2) | -10.02177957 (0.4) | -9.634 (0.2) | ||||
| Variability | ||||||||
| Magnetic | ||||||||
| Bd | [MG] | |||||||
| Infrared excess (disk) | ||||||||
| Binarity | ||||||||
| B magnitude | ||||||||
| V magnitude | ||||||||
| R magnitude | ||||||||
| I magnitude | ||||||||
| J magnitude | ||||||||
| H magnitude | ||||||||
| K magnitude | ||||||||
| u magnitude | 19.68 (0.04) | 19.68 (0.04) | 19.68 (0.04) | |||||
| g magnitude | 18.84 (0.009) | 18.84 (0.02) | 18.84 (0.009) | |||||
| r magnitude | 18.56 (0.009) | 18.54 (0.02) | 18.56 (0.009) | |||||
| i magnitude | 18.44 (0.01) | 18.44 (0.02) | 18.44 (0.02) | |||||
| z magnitude | 18.44 (0.03) | 18.43 (0.04) | 18.43 (0.04) | |||||
| G magnitude | 18.54 (0.03) | 18.55 | 18.54 (0.004) | |||||
| BP magnitude | 18.85 (0.03) | 18.85 | ||||||
| RP magnitude | 18.13 (0.02) | 18.10 | ||||||
| Pan g magnitude | 18.80 (0.01) | |||||||
| Pan r magnitude | 18.56 (0.008) | |||||||
| Pan i magnitude | 18.45 (0.004) | |||||||
| Pan z magnitude | 18.44 (0.01) | |||||||
| Pan y magnitude | 18.42 (0.01) | |||||||
| E(B-V) | 0.047 | |||||||
* 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.