Meaning of NOVA
| Pronunciation: | | 'nowvu
|
 WordNet Dictionary |
| |
| | Definition: | | [n] a star that ejects some of its material in the form of a cloud and become more luminous in the process |
| |
| | Websites: | | |
| |
| | See Also: | | star | |
| Products Dictionary |
| |
| | Definition: | | Nova
Delany's classic work of science fiction chronicles the intergalactic adventures of Mouse, an itinerant minstrel, and intrepid spaceship Captain Lorq Von Ray, as they set out to journey through the core of a recently imploded sun. Reprint. 12,500 first printing. more details ... |
| |
| Webster's 1913 Dictionary |
| |
| | Definition: | | \No"va\ (n[=o]"v[.a]), n.; pl. L. {Nov[ae]} (-v[=e]), E.
{Novas} (-v[.a]z). [L., fem. sing. of novus new.] (Astron.)
A new star, usually appearing suddenly, shining for a brief
period, and then sinking into obscurity. Such appearances are
supposed to result from cosmic collisions, as of a dark star
with interstellar nebulosities.
Note: The most important modern nov[ae] are:
{No"va Co*ro"n[ae] Bo`re*a"lis}[1866];
{No"va Cyg"ni}[1876];
{No"va An*dro"me*d[ae]}[1885];
{No"va Au*ri"g[ae]}[1891-92];
{No"va Per"se*i}[1901]. 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.
|
| |
| Computing Dictionary |
| |
| | Definition: | | A minicomputer(?), introduced some time before 1978, with four 16-bit accumulators, AC0 to AC3 and a 15 bit program counter. A later model also had a 15-bit stack pointer and frame pointer. AC2 and AC3 could be used for indexed addresses and AC3 was used to store the return address on a subroutine call. Apart from the small register set, the NOVA was an ordinary CPU design. Memory could be access indirectly through addresses stored in other memory locations. If locations 0 to 3 were used for this purpose, they were auto-incremented after being used. If locations 4 to 7 were used, they were auto-decremented. Memory could be addressed in 16-bit words up to a maximum of 32K words (64K bytes). The instruction cycle time was 500 nanoseconds(?) cycle time for each. The Nova originally used core memory though later on they gained dynamic RAM. Like the PDP-8, the Data General Nova was also copied, not just in one, but two implementations - the Data General MN601 and Fairchild 9440. Luckily, the NOVA was a more mature design than the PDP-8. Another CPU, the PACE, was based on the NOVA design, but featured 16-bit addresses (instead of the Nova's 15), more addressing modes and a 10-level stack (like the Intel 8008). |
| |
| Thesaurus Terms |
| |
| | Related Terms: | | absolute magnitude, Beehive, binary star, black hole, Cepheid variable, double star, dwarf star, fixed star, giant star, globular cluster, gravity star, Hertzsprung-Russell diagram, Hyades, magnitude, main sequence star, mass-luminosity law, Messier catalog, neutron star, NGC, open cluster, Pleiades, populations, pulsar, quasar, quasi-stellar radio source, radio star, red giant star, relative magnitude, Seven Sisters, sky atlas, spectrum-luminosity diagram, star, star catalog, star chart, star cloud, star cluster, stellar magnitude, supernova, variable star, white dwarf star |
| |
|
|
|