JSTOR Daily

Relation of the Apex of Solar Motion to Proper Motion and on the Cause of the Differences of Its Position from Radial Velocities and Proper Motions

Proceedings of the National Academy of Sciences of the United States of America, Vol. 3, No. 1 (Jan. 15, 1917), pp. 38-41 (4 pages) ...
Nature

The Journey of the Sun

RALF E. WILSON discusses the motion of the sun in the Galaxy in Leaflet No. 161 (July, 1942) issued by the Astronomical Society of the Pacific. Before 1900, all determinations of the apex of the sun's ...
Optics

Proper motion suggests super-massive galactic nucleus

The first direct measurements of the proper motion of stars at our galaxy's core provides new evidence for the existence there of a black hole. Researchers Reinhard Genzel and Andreas Eckart of the ...
Hosted on MSN

3D velocity analysis of wide binaries supports modified gravity at low acceleration

Wide binary stars with separation greater than about 2000 astronomical units are interesting natural laboratories that allow a direct probe of gravity at low acceleration weaker than about 1 nanometer ...
JSTOR Daily

RADIAL VELOCITIES OF M DWARF STARS

Radial velocities for 72 M dwarfs have been obtained having internal errors of about 0.1 km s⁻¹ and external errors of about 0.4 km s⁻¹. Multiple velocity measurements often dMe stars have yielded a ...