ABSTRACT We present the results of a search for cool subdwarfs for which our candidates were drawn from a V−J reduced proper‐motion diagram constructed by Salim & Gould. Kinematic (U, V, and W) and ...

Astronomers have long been able to measure the movement of stars in our 'line of sight' (i.e. the movement towards or away from us) by measuring the redshift, which is caused by the Doppler effect.

The Gaia spacecraft view of the whole sky: it’s measured the motion of two billion stars (ESA/Gaia/DPAC, CC BY-SA 3.0 IGO) We all know Edmond Halley because he’s immortalised by the comet that bears ...

Stars move slowly across the sky over very long periods. The closer a star is, the more easily we can see its movement. Stellar parallax is a shift in a star's apparent position due to Earth's orbit.

Despite my Ph.D. bona fides, at heart I still consider myself to be an amateur astronomer—someone who gazes at the night sky for the sheer joy of it, whether through a telescope’s eyepiece or a ...

AN attempt has been made to identify optically three pulsars by proper motion surveys in the vicinity of the radio positions. An object at a distance of 100 pc having a velocity of 200 km s −1 ...

We assume that the stars' positions in the heavens are eternal. But everything in space is in motion. As our Milky Way rotates, our sun is carried once around the galaxy every 250 million years, ...