NGC 663
| NGC 663 | |
|---|---|
 | |
| Otkriće | |
| Položaj Epoha J2000 | |
| Zviježđe | Kasiopeja |
| Rektascenzija | 01h 46.0m |
| Deklinacija | +61° 15′ |
| Izgled na našem nebu | |
| Prividna magnituda | 7.1 |
| Prividne dimenzije (V) | 16.0″ |
| Stvarne osobine objekta | |
| Ostalo | |
| Posebne značajke | - |
| Druge oznake | - |
NGC 663 je otvoreni skup u zviježđu Kasiopeje.
Astronomska promatranja
Iako ga Charles Messier nije svrstao u svoj katalog, ovaj je skup mnogo lakše uočljiv u malim amaterskim teleskopima nego susjedni mnogo poznatiji Messier 103, posljednji objekt kojeg je Messier katalogizirao.
Skup je, čak i u gradskim uvjetima, lako uočljiv i sa dvogledom 10x50. U dvogledu se uočava kao sviejtla mrlja, dok i mali teleskop otkriva pojedinačne zvijezde.
U skupu NGC 663 se ističu 5 zvijezda u središtu skupa, dok preostalih desetak slabijih zvijezda daju skupu oblik romba.
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