All names: 2MASS J13340552+6649572, GALEX J133405.5+664955, Gaia DR2 1672368975533354880, SDSSJ133405.51+664957.2, SDSS J133405.51+664957.3, Gaia DR3 1672368975533354880, SDSS J133405.51+664957.1, TIC 153976829
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 13 34 05.51 | 13 34 05.52 (0.04) | ||
| Declination | 66 49 57.20 | 66 49 57.17 (0.04) | ||
| Spectral type | sdB | sdB1He+G/K | ||
| 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] | 0.80 (0.05) | 0.59 (0.05) | |
| Distance | [pc] | 1247.04 (77) | 1689.19 (130) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | -3.643 (0.08) | -3.459 (0.05) | |
| Proper motion (declination) | [mas/yr] | -1.675 (0.07) | -0.84 (0.05) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | ||||
| V magnitude | ||||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 14.66 (0.03) | 14.66 (0.03) | ||
| H magnitude | 14.37 (0.04) | 14.37 (0.04) | ||
| K magnitude | 14.12 (0.06) | 14.12 (0.06) | ||
| u magnitude | 14.74 (0.004) | 14.73 (0.004) | ||
| g magnitude | 14.80 (0.003) | 14.79 (0.003) | ||
| r magnitude | 15.07 (0.004) | 15.07 (0.004) | ||
| i magnitude | 15.22 (0.004) | 15.22 (0.004) | ||
| z magnitude | 15.35 (0.006) | 15.33 (0.006) | ||
| G magnitude | 14.91 (0.0004) | 14.89 (0.003) | ||
| BP magnitude | 14.81 (0.005) | |||
| RP magnitude | 14.91 (0.002) | |||
| Pan g magnitude | 14.85 (0.002) | |||
| Pan r magnitude | 15.07 (0.002) | |||
| Pan i magnitude | 15.25 (0.003) | |||
| Pan z magnitude | 15.38 (0.004) | |||
| Pan y magnitude | 15.40 (0.005) | |||
| E(B-V) | 0.017 | |||
* 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.