La Silla Observatory

is.

The redshift came from the VLT's X-shooter at Paranal, with follow-up from Grand at La Silla and the SMART telescope at Cerro Tololo.

The burst sits at a declination of about minus 54.

From Sydney, that patch of sky climbs to about 70 degrees.

Decades later, astronomers gained instruments precise enough to detect motions almost impossible to observe directly.

At the European Southern Observatory's La Silla Observatory in Chile, The high-accuracy radial velocity planet-searcher spectrograph spent more than a decade observing Ross 128.

Instead of photographing a planet, astronomers searched for the gravitational influence of an unseen companion.

A planet pulls on its star as both bodies move around their shared center of mass.