Radial velocity curve of Gliese 86

The image shows the measurements (with error bars) of the radial velocity (V r vrs. orbital phase) of Gliese 86 with the new 1.2-m Swiss telescope and the CORALIE spectrograph at La Silla. They have been "phase-folded" with a period of 15.83 days and the diagramme thus represents one revolution of the planet around the star. The fully drawn line corresponds to the best orbital solution, obtained by least-square fitting a simple two-body model (star + planet) to the data. As can be seen, the agreement is near perfect and the dispersion of the measurements around this line is very small.



About the Image

Release date:24 November 1998
Related releases:eso9855
Size:3000 x 2662 px

About the Object

Name:Gilese 86
Type:Milky Way : Star : Grouping : Binary
Milky Way : Star : Circumstellar Material : Planetary System
Distance:35 light years

Image Formats

Large JPEG
378.5 KB
Screensize JPEG
94.6 KB

Colours & filters

OpticalSwiss 1.2-metre Leonhard Euler Telescope