All names: Gaia DR2 4574318806520054528, SDSSJ171929.52+273229.3, SDSS J171929.52+273229.33, SDSS J171929.52+273229.3, TIC 257794969, 2MASS J17192952+2732292, GALEX J171929.5+273229, Gaia EDR3 4574318806520054528, Gaia DR3 4574318806520054528
| Parameter | Unit | Gaia EDR3 | Pan-STARRS DR1 | SDSS DR12 | SDSS DR10 | Geier 2020 | Gaia DR2 | Stilism | Kepler et al. 2015 | Simbad | Eisenstein et al. 2006 |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Right ascension | 17 19 29.51 (0.1) | 17 19 29.52 | 17 19 29.52 | 17 19 29.52 | 17 19 29.51 (0.2) | 17 19 29.52 (0.1) | 17 19 29.52 | ||||
| Declination | 27 32 29.34 (0.2) | 27 32 29.39 | 27 32 29.39 | 27 32 29.30 | 27 32 29.34 (0.2) | 27 32 29.40 (0.2) | 27 32 29.35 | ||||
| Spectral type | sdB+MS | F/DAZ | B9III | SD_auto | |||||||
| Effective temperature | [K] | 30637.0 (177) | 28916.0 (182) | ||||||||
| log(g) | [cgs] | 5.11 (0.04) | 5.00 (0.002) | ||||||||
| Mass | [M☉] | ||||||||||
| log(Luminosity) | [L☉] | ||||||||||
| Cooling age | [Gyr] | ||||||||||
| log(H/He) | |||||||||||
| log(C/He) | |||||||||||
| log(Ca/He) | |||||||||||
| log(Ca/H) | |||||||||||
| Parallax | [mas] | 0.87 (0.2) | 1.12 (0.3) | 1.12 (0.3) | 0.87 (0.2) | ||||||
| Distance | [pc] | 1150.38 (275) | 894.13 (220) | 894.12 (220) | 1150.35 (275) | ||||||
| Composition | |||||||||||
| Proper motion (right ascension) | [mas/yr] | -4.113275012 (0.2) | -3.711 (0.4) | -3.710825643 (0.4) | -4.113 (0.2) | -1.9 | |||||
| Proper motion (declination) | [mas/yr] | -4.234568051 (0.2) | -5.139 (0.5) | -5.139280091 (0.5) | -4.235 (0.2) | -7.3 | |||||
| Variability | |||||||||||
| Magnetic | |||||||||||
| Bd | [MG] | ||||||||||
| Infrared excess (disk) | |||||||||||
| Binarity | |||||||||||
| B magnitude | |||||||||||
| V magnitude | |||||||||||
| R magnitude | |||||||||||
| I magnitude | |||||||||||
| J magnitude | 16.79 (0.1) | 16.79 (0.1) | |||||||||
| H magnitude | 16.41 | ||||||||||
| K magnitude | 15.61 | ||||||||||
| u magnitude | 17.19 (0.008) | 17.19 (0.008) | 17.19 (0.008) | 17.21 (0.02) | 17.19 (0.008) | 17.21 (0.02) | |||||
| g magnitude | 17.22 (0.005) | 17.22 (0.005) | 17.22 (0.005) | 17.24 (0.01) | 17.22 (0.005) | 17.24 (0.01) | |||||
| r magnitude | 17.44 (0.006) | 17.44 (0.006) | 17.44 (0.006) | 17.44 (0.01) | 17.44 (0.006) | 17.44 (0.01) | |||||
| i magnitude | 17.56 (0.007) | 17.56 (0.007) | 17.56 (0.007) | 17.60 (0.02) | 17.56 (0.007) | 17.60 (0.02) | |||||
| z magnitude | 17.67 (0.01) | 17.67 (0.01) | 17.67 (0.01) | 17.67 (0.02) | 17.67 (0.01) | 17.67 (0.02) | |||||
| G magnitude | 17.41 (0.006) | 17.37 (0.002) | 17.37 | 17.41 (0.004) | |||||||
| BP magnitude | 17.29 (0.006) | 17.25 (0.007) | 17.25 | ||||||||
| RP magnitude | 17.23 (0.009) | 17.23 (0.009) | 17.23 | ||||||||
| Pan g magnitude | 17.25 (0.006) | 17.25 (0.006) | |||||||||
| Pan r magnitude | 17.45 (0.004) | 17.45 (0.004) | |||||||||
| Pan i magnitude | 17.57 (0.004) | 17.57 (0.004) | |||||||||
| Pan z magnitude | 17.69 (0.004) | 17.69 (0.004) | |||||||||
| Pan y magnitude | 17.74 (0.01) | 17.74 (0.01) | |||||||||
| E(B-V) | 0.032 | ||||||||||
* 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.