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Hasil cari dari kata atau frase: Nova Cygni(0.01377 detik)
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Definition: Nova Cygni
Nova \No"va\ (n[=o]"v[.a]), n.; pl. L. Novae (n[=o]"v[=e]), E.
Novas (n[=o]"v[.a]z). [L., fem. sing. of novus new.]
A star which suddenly increases in brightness thousands of
times, then fades back to near its original intensity. It may
appear as a “new” star if its original brightness was too
low for routine observation. A star which suddenly increases
in brightness to many millions of times its original
intensity is a supernova, and the postulated mechanisms for
the increases of brightness of novae and supernovae are
Note: The most important modern nov[ae] are:
No"va Co*ro"n[ae] Bo`re*a"lis;
No“va Per”se*i. There are two nov[ae] called Nova Persei
. They are:
(a) A small nova which appeared in 1881.
(b) An extraordinary nova which appeared in Perseus in 1901.
It was first sighted on February 22, and for one night
(February 23) was the brightest star in the sky. By July
it had almost disappeared, after which faint surrounding
nebulous masses were discovered, apparently moving
radially outward from the star at incredible velocity.
[Webster 1913 Suppl. +PJC]