Sentences with phrase «plane of the sky»

«For B0355 +54, a jet points nearly at us so we detect the bright radio pulses while most of the gamma - ray emission is directed in the plane of the sky and misses the Earth,» said Kargaltsev.

However, measuring the movement in the plane of the sky, what is known as the proper motion, is much more difficult.

Those measurements, however, were not accurate enough to obtain parallax, and relied instead on tracking the star - forming region's so - called «proper motion» across the plane of the sky.

Second, also the velocity of the neutron star is known with its magnitude and its direction on the plane of the sky.

However we see tornado - like shapes in the images because of projection effects, where the line of sight information is compressed onto the plane of the sky.»

«All you're seeing is stuff that's moving across the plane of the sky, like the shadow of a smoke ring,» Guhathakurta says.

The Subaru data reveal the presence of a surrounding large scale structure with the major axis running approximately north - west south - east (NW - SE), aligned with the cluster and its brightest galaxy shapes, showing elongation with a \ sim 2:1 axis ratio in the plane of the sky.

As expected, the shifts in the star positions as observed on the plane of the sky — called proper motions — are tiny, even over the long time baseline between 2002, when the Hubble observationswere performed, and the first set of publicly released Gaia data, gathered between 2014 and 2015.

The star orbits the galaxy's central black hole at an average distance of 5.5 light - days that takes about 15.2 years to complete, at «an inclination of 46 degrees with respect to the plane of the sky» (MPE research introduction).

The basic limitation of the coronagraph is that it shows the corona only in the plane of the sky, and blocks by necessity the view on the solar disk.