All names: Gaia DR3 1532409357294653824, LAMOST J121735.97+375825.0, FBS B 89, LAMOST J121735.90+375824.9, 2MASS J12173591+3758250, Gaia DR2 1532409357294653824, LAMOST J121735.89+375824.9, CSO 1299, GALEX J121735.9+375824, SDSS J121735.90+375824.92, FBS 1215+382, Gaia EDR3 1532409357294653824, TIC 39176473, SDSSJ121735.90+375824.9, LAMOST J121735.92+375824.8, SDSS J121735.90+375824.9
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad |
|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 12 17 35.91 (0.03) | 12 17 35.90 | 12 17 35.90 | 12 17 35.91 (0.05) | 12 17 35.92 (0.03) | ||||
| Declination | 37 58 24.88 (0.02) | 37 58 24.92 | 37 58 24.90 | 37 58 24.88 (0.03) | 37 58 24.94 (0.02) | ||||
| Spectral type | sdB+MS | sdB | sdB+G0III | ||||||
| Effective temperature | [K] | 30000.0 (54) | |||||||
| log(g) | [cgs] | 5.00 (0.05) | |||||||
| Mass | [M☉] | ||||||||
| log(Luminosity) | [L☉] | ||||||||
| Cooling age | [Gyr] | ||||||||
| log(H/He) | |||||||||
| log(C/He) | |||||||||
| log(Ca/He) | |||||||||
| log(Ca/H) | |||||||||
| Parallax | [mas] | 0.30 (0.04) | 0.39 (0.07) | 0.39 (0.07) | 0.30 (0.04) | ||||
| Distance | [pc] | 3287.40 (468) | 2586.65 (448) | 2586.65 (448) | 3287.31 (468) | ||||
| Composition | |||||||||
| Proper motion (right ascension) | [mas/yr] | -8.213133342 (0.03) | -8.343 (0.09) | -8.343 (0.09) | -8.213 (0.03) | ||||
| Proper motion (declination) | [mas/yr] | -3.670638923 (0.04) | -3.939 (0.06) | -3.939 (0.06) | -3.671 (0.04) | ||||
| Variability | |||||||||
| Magnetic | |||||||||
| Bd | [MG] | ||||||||
| Infrared excess (disk) | |||||||||
| Binarity | |||||||||
| B magnitude | |||||||||
| V magnitude | 15.69 | ||||||||
| R magnitude | |||||||||
| I magnitude | |||||||||
| J magnitude | 15.31 (0.05) | 15.31 (0.05) | |||||||
| H magnitude | 15.08 (0.09) | 15.08 (0.09) | |||||||
| K magnitude | 15.19 (0.2) | 15.19 (0.2) | |||||||
| u magnitude | 15.47 (0.004) | 15.47 (0.004) | 15.52 (0.03) | 15.47 (0.004) | |||||
| g magnitude | 15.42 (0.003) | 15.42 (0.003) | 15.40 (0.02) | 15.42 (0.003) | |||||
| r magnitude | 15.66 (0.004) | 15.66 (0.004) | 15.65 (0.01) | 15.66 (0.004) | |||||
| i magnitude | 15.82 (0.004) | 15.82 (0.004) | 15.83 (0.02) | 15.82 (0.004) | |||||
| z magnitude | 15.97 (0.006) | 15.97 (0.006) | 15.97 (0.01) | 15.97 (0.006) | |||||
| G magnitude | 15.52 (0.002) | 15.53 (0.0005) | 15.53 | 15.52 (0.003) | |||||
| BP magnitude | 15.50 (0.002) | 15.48 (0.005) | 15.48 | ||||||
| RP magnitude | 15.50 (0.003) | 15.50 (0.003) | 15.50 | ||||||
| Pan g magnitude | 15.50 (0.005) | 15.50 (0.005) | |||||||
| Pan r magnitude | 15.68 (0.003) | 15.68 (0.003) | |||||||
| Pan i magnitude | 15.85 (0.004) | 15.85 (0.004) | |||||||
| Pan z magnitude | 15.97 (0.003) | 15.97 (0.003) | |||||||
| Pan y magnitude | 16.04 (0.003) | 16.04 (0.003) | |||||||
| E(B-V) | 0.018 | ||||||||
* 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.