All names: GALEX J144856.9+454533, Gaia DR3 1589826095016002432, SDSS J144857.10+454534.4, WISEA J144857.09+454534.3, UCAC2 47320333, TIC 116307277, PG1447+459, Gaia DR2 1589826095016002432, CBS 286, PG 1447+459, WISE J144857.10+454534.3, 2MASS J14485711+4545344, UCAC4 679-055275
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 14 48 57.18 | 14 48 57.11 (0.03) | ||
| Declination | 45 45 34.74 | 45 45 34.46 (0.03) | ||
| Spectral type | sdO | sdOA | ||
| 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] | 0.90 (0.05) | 0.93 (0.03) | |
| Distance | [pc] | 1111.73 (63) | 1070.78 (39) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -13.233 (0.07) | -13.142 (0.04) | |
| Proper motion (declination) | [mas/yr] | -9.359 (0.08) | -9.056 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 14.94 (0.02) | |||
| V magnitude | 15.04 (0.01) | |||
| R magnitude | 15.36 (0.1) | |||
| I magnitude | ||||
| J magnitude | 14.73 (0.04) | 14.73 (0.04) | ||
| H magnitude | 14.39 (0.05) | 14.39 (0.05) | ||
| K magnitude | 14.13 (0.07) | 14.13 (0.07) | ||
| u magnitude | 14.54 (0.004) | |||
| g magnitude | 14.79 (0.003) | 14.90 (0.01) | ||
| r magnitude | 15.10 (0.004) | 15.22 (0.01) | ||
| i magnitude | 15.30 (0.004) | 15.59 (0.01) | ||
| z magnitude | 15.42 (0.006) | |||
| G magnitude | 14.93 (0.001) | 14.92 (0.003) | ||
| BP magnitude | 14.80 (0.009) | |||
| RP magnitude | 14.98 (0.004) | |||
| Pan g magnitude | 14.84 (0.002) | |||
| Pan r magnitude | 15.15 (0.008) | |||
| Pan i magnitude | 15.34 (0.002) | |||
| Pan z magnitude | 15.45 (0.004) | |||
| Pan y magnitude | 15.54 (0.006) | |||
| E(B-V) | 0.022 | |||
* 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.