All names: uvby98 263970162, Cl* NGC 6397 AL 375, Cl* NGC 6397 ROB 162, GSC 08729-01093, 2MASS J17403844-5338313, [SDS2012] NGC 6397 522, ROB162, Gaia DR2 5921754157289957376, Gaia DR3 5921754157289957376, uvby98 263970187, TIC 96547239, NGC 6397 162
| Parameter | Unit | Geier 2020 | Stilism | Simbad |
|---|---|---|---|---|
| Right ascension | 17 40 38.46 | 17 40 38.46 (0.03) | ||
| Declination | -53 38 31.30 | -53 38 31.35 (0.02) | ||
| Spectral type | sdO | sdOp | ||
| 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] | 0.32 (0.06) | 0.40 (0.03) | |
| Distance | [pc] | 3172.59 (568) | 2483.85 (189) | |
| Composition | ||||
| Proper motion (right ascension) | [mas/yr] | 3.461 (0.1) | 3.484 (0.04) | |
| Proper motion (declination) | [mas/yr] | -17.886 (0.1) | -17.835 (0.03) | |
| Variability | ||||
| Magnetic | ||||
| Bd | [MG] | |||
| Infrared excess (disk) | ||||
| Binarity | ||||
| B magnitude | 13.06 | |||
| V magnitude | 13.23 | |||
| R magnitude | ||||
| I magnitude | ||||
| J magnitude | 13.44 (0.03) | 13.44 (0.03) | ||
| H magnitude | 13.58 (0.05) | 13.58 (0.05) | ||
| K magnitude | 13.59 (0.06) | 13.59 (0.06) | ||
| u magnitude | ||||
| g magnitude | ||||
| r magnitude | ||||
| i magnitude | ||||
| z magnitude | ||||
| G magnitude | 13.17 (0.0009) | 13.15 (0.003) | ||
| BP magnitude | 13.01 (0.01) | |||
| RP magnitude | 13.26 (0.002) | |||
| Pan g magnitude | ||||
| Pan r magnitude | ||||
| Pan i magnitude | ||||
| Pan z magnitude | ||||
| Pan y magnitude | ||||
| E(B-V) | 0.164 | |||
* 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.