The Far 3 kpc Arm was discovered in 2008 by astronomer Tom Dame while preparing a talk on the galaxy's spiral arms for a meeting of the 212th American...

The Near 3 kpc Arm (formerly also called Expanding 3 kpc Arm or simply 3 kpc Arm) was discovered in the 1950s by astronomer van Woerden and collaborators...

distance modulus of ( m − M ) 0 = 18.41 {\displaystyle (m-M)_{0}=18.41} , or 48 kpc (160,000 light-years). This distance has been confirmed by other authors...

a radius of about 27,000 light-years (8.3 kpc) from the Galactic Center, on the inner edge of the Orion Arm, one of the spiral-shaped concentrations...

Carbon Monoxide and for the discovery of both the Far 3 kpc Arm and the Outer Scutum–Centaurus Arm of the Milky Way. Dame graduated from Boston University...

astronomer Tom Dame, in collaboration with Thaddeus, discovered the Far 3 kpc Arm of the Milky Way. Thaddeus married the former Janice Farrar (daughter...

sources detected and listed in 3A include SMC X-2 at 3A 0042-738 and SMC X-3 at 3A 0049-726. It has been proposed by astrophysicists D. S. Mathewson, V...

Magellanic Stream and the Leading Arm are at ~55 kpc (1.79x105 ly), near the Magellanic Clouds, and may extend to about 100–150 kpc (3.26x105 ly–4.89x105 ly). There...

constellation of Scutum, near the Wild Duck Cluster (M11). It is located in the Far 3 kpc Arm of the Milky Way. It is very dim from Earth, having an apparent magnitude...

Way to the Triangulum Galaxy range from 2,380×10^3 to 3,070×10^3 ly (730 to 940 kpc) (or 2.38 to 3.07 Mly), with most estimates since the year 2000 lying...