All names: 2MASS J13034661+2646314, KUV 13014+2703, SDSS J130346.61+264630.6, PG1301+270, Ton 143, Gaia DR2 1460356814139885568, PG 1301+270, FAUST 3664, [BOA98] 45, UCAC4 584-048165, LAMOST J130346.61+264630.8, Gaia DR3 1460356814139885568, LAMOST J130346.61+264630.6, A2 391, [BCF91] 503, GALEX J130346.6+264629, UCAC2 41200326, SDSS J130346.62+264630.6, CBS 338, PB 3267, KUV 494-8, US 200, OMHR J130346.67+264630.6, TIC 359149230
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 03 46.67 | 13 03 46.63 (0.04) | ||
| Declination | 26 46 30.42 | 26 46 30.55 (0.04) | ||
| Spectral type | He-sdO | sdOHe | ||
| Effective temperature | [K] | 49400.0 (1280) | ||
| log(g) | [cgs] | 6.54 (0.2) | ||
| Mass | [M☉] | |||
| log(Luminosity) | [L☉] | |||
| Cooling age | [Gyr] | |||
| log(H/He) | ||||
| log(C/He) | ||||
| log(Ca/He) | ||||
| log(Ca/H) | ||||
| Parallax | [mas] | 0.23 (0.08) | 0.33 (0.06) | |
| Distance | [pc] | 4430.66 (1521) | 3039.51 (553) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -12.254 (0.1) | -12.666 (0.06) | |
| Proper motion (declination) | [mas/yr] | 4.94 (0.1) | 5.202 (0.09) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 15.47 (0.02) | |||
| V magnitude | 15.71 | |||
| R magnitude | 15.96 (0.1) | |||
| I magnitude | ||||
| J magnitude | 16.21 (0.08) | 16.21 (0.08) | ||
| H magnitude | 16.10 (0.2) | 16.10 (0.2) | ||
| K magnitude | 16.17 (0.3) | 16.17 (0.3) | ||
| u magnitude | 14.86 (0.004) | 14.86 (0.004) | ||
| g magnitude | 15.33 (0.004) | 15.33 (0.004) | ||
| r magnitude | 15.88 (0.004) | 15.88 (0.004) | ||
| i magnitude | 16.24 (0.004) | 16.24 (0.004) | ||
| z magnitude | 16.59 (0.009) | 16.59 (0.009) | ||
| G magnitude | 15.60 (0.0006) | 15.60 (0.003) | ||
| BP magnitude | 15.32 (0.005) | |||
| RP magnitude | 15.93 (0.003) | |||
| Pan g magnitude | 15.42 (0.004) | |||
| Pan r magnitude | 15.88 (0.005) | |||
| Pan i magnitude | 16.27 (0.005) | |||
| Pan z magnitude | 16.56 (0.005) | |||
| Pan y magnitude | 16.77 (0.006) | |||
| E(B-V) | 0.015 | |||
* 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.