All names: TIC 371856049, KUV 12569+2750, PG1256+278, CBS 328, LAMOST J125921.22+273405.0, NPM1+27.1076, Balloon 113031004, [S78c] SA 57 362, FAUST 3615, US 95, PG 1256+277, Gaia DR2 1460692714941449728, FB 116, KUV 494-6, [TFW97] J125921.25+273406.13, Gaia DR3 1460692714941449728, uvby98 620004038, PG 1256+278, HZ 38, PB 3186, OMHR J125921.35+273406.2, [BCF91] 269, 2MASS J12592124+2734060, [BOA98] 37, Gaia EDR3 1460692714941449728
| Parameter | Unit | Gaia EDR3 | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|---|
| Right ascension | 12 59 21.22 (0.04) | 12 59 21.34 | 12 59 21.25 (0.04) | ||
| Declination | 27 34 06.00 (0.03) | 27 34 06.31 | 27 34 06.04 (0.03) | ||
| Spectral type | He-sdB | sdOA | |||
| Effective temperature | [K] | 34400.0 (1000) | |||
| log(g) | [cgs] | 5.93 (0.1) | |||
| Mass | [M☉] | ||||
| log(Luminosity) | [L☉] | ||||
| Cooling age | [Gyr] | ||||
| log(H/He) | |||||
| log(C/He) | |||||
| log(Ca/He) | |||||
| log(Ca/H) | |||||
| Parallax | [mas] | 1.36 (0.05) | 1.43 (0.07) | 1.36 (0.05) | |
| Distance | [pc] | 735.46 (29) | 699.94 (36) | 735.46 (29) | |
| Composition | |||||
| Proper motion (right ascension) | [mas/yr] | -25.68 (0.04) | -25.506 (0.09) | -25.68 (0.04) | |
| Proper motion (declination) | [mas/yr] | -2.923 (0.06) | -3.109 (0.07) | -2.923 (0.06) | |
| Variability | |||||
| Magnetic | |||||
| Bd | [MG] | ||||
| Infrared excess (disk) | |||||
| Binarity | |||||
| B magnitude | 13.90 | ||||
| V magnitude | |||||
| R magnitude | |||||
| I magnitude | |||||
| J magnitude | 14.89 (0.04) | 14.89 (0.04) | |||
| H magnitude | 15.12 (0.07) | 15.12 (0.07) | |||
| K magnitude | 15.13 (0.1) | 15.13 (0.1) | |||
| u magnitude | 13.56 (0.004) | ||||
| g magnitude | |||||
| r magnitude | 14.43 (0.004) | ||||
| i magnitude | |||||
| z magnitude | 15.13 (0.006) | ||||
| G magnitude | 14.18 (0.003) | 14.19 (0.0004) | 14.18 (0.003) | ||
| BP magnitude | 14.01 (0.003) | 13.93 (0.005) | |||
| RP magnitude | 14.50 (0.004) | 14.49 (0.001) | |||
| Pan g magnitude | 13.97 (0.003) | ||||
| Pan r magnitude | 14.45 (0.004) | ||||
| Pan i magnitude | 14.82 (0.005) | ||||
| Pan z magnitude | 15.12 (0.002) | ||||
| Pan y magnitude | 15.31 (0.003) | ||||
| E(B-V) | 0.014 | ||||
* 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.