Tag Archive for 'Dwarf nova'

An artist’s impression of the KSN:BS-C11a system. Image credit: NASA / L. Hustak, STScI / R. Ridden-Harper, STScI & Australian National University.

Kepler Observes Earliest Stages of Dwarf Nova’s Super-Outburst

Jan 29, 2020 by News Staff

Using the archival data from NASA’s Kepler Space Telescope, astronomers have identified a previously unknown dwarf nova that underwent a ‘supermaxima’...

The recovered nova of 1437 and its ejected shell (false color). The now-quiescent star that produced the nova shell is indicated with greenish-blue tick marks; it is far from the shell’s center today. However, its measured motion across the sky places it at the greenish-blue plus sign in 1437. The position of the center of the shell in 2016 and its deduced position in 1437 are indicated with yellow and magenta plus signs, respectively. Image credit: K. Ilkiewicz & J. Mikolajewska.

Astronomers Pinpoint Location of Nova First Spotted by Koreans 580 Years Ago

Aug 31, 2017 by News Staff

On March 11, 1437, Korean royal astronomers spotted a bright new star in the constellation Scorpius. From the ancient records, modern astronomers determined...