All names: PG1357+239, PG 1357+239, GALEX J140003.0+234459, LAMOST J140003.06+234459.9, 2MASS J14000300+2344588, Gaia DR3 1256917132588516224, UCAC4 569-050861, Gaia DR2 1256917132588516224, TIC 445077261, LB 705, LAMOST J140002.98+234459.0
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 14 00 03.04 | 14 00 02.99 (0.06) | ||
| Declination | 23 44 59.24 | 23 44 59.00 (0.06) | ||
| Spectral type | He-sdO | sdOBHe+G8V | ||
| 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] | 0.00 (0.1) | 0.20 (0.08) | |
| Distance | [pc] | 625000.00 (46171875) | 4923.68 (2027) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -12.546 (0.2) | -12.425 (0.08) | |
| Proper motion (declination) | [mas/yr] | 0.113 (0.2) | -0.716 (0.06) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.16 (0.02) | |||
| V magnitude | 15.36 (0.03) | |||
| R magnitude | 15.51 (0.1) | |||
| I magnitude | ||||
| J magnitude | 15.17 (0.05) | 15.17 (0.05) | ||
| H magnitude | 15.30 (0.1) | 15.30 (0.1) | ||
| K magnitude | 15.02 (0.1) | 15.02 (0.1) | ||
| u magnitude | 14.71 (0.004) | |||
| g magnitude | 15.04 (0.003) | 15.16 (0.03) | ||
| r magnitude | 15.33 (0.004) | 15.48 (0.08) | ||
| i magnitude | 15.50 (0.004) | 15.55 (0.03) | ||
| z magnitude | 15.67 (0.006) | |||
| G magnitude | 15.16 (0.001) | 15.14 (0.003) | ||
| BP magnitude | 15.03 (0.009) | |||
| RP magnitude | 15.18 (0.002) | |||
| Pan g magnitude | 15.11 (0.005) | |||
| Pan r magnitude | 15.34 (0.004) | |||
| Pan i magnitude | 15.53 (0.005) | |||
| Pan z magnitude | 15.68 (0.002) | |||
| Pan y magnitude | 15.77 (0.005) | |||
| 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.