V838 Herculis [SEP] constellation
V838 Herculis
V838 Herculis was a nova which occurred in the constellation Hercules in 1991 and which reached magnitude 5.0.
External links.
- https://web.archive.org/web/20050915104557/http://www.tsm.toyama.toyama.jp/curators/aroom/var/nova/1990.htm ("the page is currently offline")
- V838 Herculis at the American Association of Variable Star Observers website
V838 Monocerotis
V838 Monocerotis (V838 Mon) is a red star in the constellation Monoceros about 20,000 light years (6 kpc) from the Sun. The previously unknown star was observed in early 2002 experiencing a major outburst, and was possibly one of the largest known stars for a short period following the outburst. Originally believed to be a typical nova eruption, it was then identified as something completely different. The reason for the outburst is still uncertain, but several conjectures have been put forward, including an eruption related to