All names: SDSS J145117.45+525020.5, GALEX J145117.4+525020, PG1449+530, TIC 161026823, 2MASS J14511746+5250205, CBS 290, UCAC4 715-052994, Gaia DR2 1605724311599744640, Gaia DR3 1605724311599744640, PG 1449+530, SBSS 1449+530
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 14 51 17.41 | 14 51 17.46 (0.03) | ||
| Declination | 52 50 20.39 | 52 50 20.47 (0.03) | ||
| Spectral type | sdO | sdO | ||
| 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] | 0.35 (0.05) | 0.41 (0.03) | |
| Distance | [pc] | 2872.74 (406) | 2443.79 (202) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -7.352 (0.07) | -7.237 (0.03) | |
| Proper motion (declination) | [mas/yr] | -1.305 (0.08) | -1.383 (0.04) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.09 (0.01) | |||
| V magnitude | 15.30 (0.04) | |||
| R magnitude | 15.59 (0.2) | |||
| I magnitude | ||||
| J magnitude | 16.02 (0.08) | 16.02 (0.08) | ||
| H magnitude | 16.50 | |||
| K magnitude | 15.59 | |||
| u magnitude | 14.53 (0.004) | |||
| g magnitude | 14.95 (0.004) | 15.15 (0.04) | ||
| r magnitude | 15.49 (0.004) | 15.60 (0.1) | ||
| i magnitude | 15.87 (0.005) | 15.87 (0.01) | ||
| z magnitude | 16.20 (0.008) | |||
| G magnitude | 15.25 (0.0008) | 15.23 (0.003) | ||
| BP magnitude | 14.99 (0.007) | |||
| RP magnitude | 15.54 (0.003) | |||
| Pan g magnitude | 15.06 (0.002) | |||
| Pan r magnitude | 15.51 (0.004) | |||
| Pan i magnitude | 15.89 (0.003) | |||
| Pan z magnitude | 16.18 (0.004) | |||
| Pan y magnitude | 16.38 (0.008) | |||
| E(B-V) | 0.020 | |||
* 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.