All names: GALEX J125229.6-030130, LAMOST J125229.66-030129.9, [HMD92] 862-1, [HMD92] 790-1, PG 1249-028, Gaia DR2 3682304199935092096, FBS 1249-027, Gaia EDR3 3682304199935092096, 2MASS J12522960-0301296, SDSS J125229.60-030129.7, SDSS J125229.60-030129.6, TIC 53303590, UCAC2 30704750, UCAC4 435-057077, PG1249-028, Gaia DR3 3682304199935092096, LAMOST J125229.60-030129.6
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | Geier 2020 | Gaia DR2 | Stilism | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 52 29.59 (0.05) | 12 52 29.61 | 12 52 29.65 | 12 52 29.59 (0.07) | 12 52 29.61 (0.05) | 12 52 29.61 | |||
| Declination | -03 01 29.65 (0.02) | -03 01 29.73 | -03 01 29.80 | -03 01 29.66 (0.05) | -03 01 29.71 (0.02) | -03 01 29.73 | |||
| Spectral type | sdB | sdBHe0 | SDB | ||||||
| Effective temperature | [K] | 30780.0 (480) | 28949.0 (100) | ||||||
| log(g) | [cgs] | 5.69 (0.1) | 5.00 (0.007) | ||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.58 (0.05) | 0.58 (0.07) | 0.58 (0.07) | 0.58 (0.05) | ||||
| Distance | [pc] | 1729.95 (152) | 1717.33 (218) | 1717.42 (218) | 1729.80 (152) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -16.63750344 (0.07) | -16.68 (0.2) | -16.68006557 (0.2) | -16.638 (0.07) | -11.8 | |||
| Proper motion (declination) | [mas/yr] | 3.380057098 (0.06) | 3.389 (0.1) | 3.389004358 (0.1) | 3.38 (0.06) | 2.6 | |||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | 15.55 (0.07) | ||||||||
| V magnitude | 15.62 (0.03) | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 16.16 (0.08) | 16.16 (0.08) | |||||||
| H magnitude | 17.59 | ||||||||
| K magnitude | 15.65 | ||||||||
| u magnitude | 15.12 (0.004) | 15.12 (0.004) | 15.12 (0.004) | 15.15 (0.01) | |||||
| g magnitude | 15.32 (0.003) | 15.32 (0.003) | 15.32 (0.003) | 15.38 (0.04) | |||||
| r magnitude | 15.85 (0.003) | 15.85 (0.003) | 15.85 (0.003) | 15.89 (0.02) | |||||
| i magnitude | 16.19 (0.004) | 16.19 (0.004) | 16.19 (0.004) | 16.21 (0.01) | |||||
| z magnitude | 16.53 (0.009) | 16.53 (0.009) | 16.53 (0.009) | 16.54 (0.02) | |||||
| G magnitude | 15.63 (0.002) | 15.65 (0.0009) | 15.65 | 15.63 (0.003) | |||||
| BP magnitude | 15.49 (0.002) | 15.44 (0.005) | 15.44 | ||||||
| RP magnitude | 15.92 (0.003) | 15.91 (0.003) | 15.91 | ||||||
| Pan g magnitude | 15.47 (0.002) | 15.47 (0.002) | |||||||
| Pan r magnitude | 15.91 (0.003) | 15.91 (0.003) | |||||||
| Pan i magnitude | 16.26 (0.004) | 16.26 (0.004) | |||||||
| Pan z magnitude | 16.54 (0.003) | 16.54 (0.003) | |||||||
| Pan y magnitude | 16.72 (0.005) | 16.72 (0.005) | |||||||
| E(B-V) | 0.023 | ||||||||
* 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.