The cat's eye nebula is therefore small than our home galaxy. This halo extends over a diameter of approximately 300 arc seconds (5 arc minutes). A cat's eyes are specifically designed to register the slightest movement.
Declination +66° 37′ 59″ Distance:
Though the cat's eye nebula was one of the first planetary nebulae to be discovered, it is one of the most complex such nebulae seen in space. This image reveals new details of the cat’s eye nebula (catalogued as ngc 6543), one of the most complex planetary nebulae ever seen. 17 h 58 m 33.423 s:
Its Central Pnn Is A Hot Dying Star With A Temperature Of 80,000 Kelvin.
A planetary nebula is the glowing gas ejected during the final stages of evolution of a star similar in mass to our sun. How big is the cats eye nebula? Hubble space telescope image taken in 2004.
The Nebula, Formally Cataloged Ngc 6543, Is Every Bit As Inscrutable As The J.r.r.
17h 58m 33.423s (right ascension), +66°37’59.52” (declination) distance: The outer halo has a higher temperature of about 15,000 k and a much lower density. Image taken by the hubble space telescope, 2002, 1.2 h exposure time [ 247 ]
Declination +66° 37′ 59.52″ Constellation:
A cat's pupil is elliptical (vertical) when it's bright, or large and round when it's dark. Each 'ring' is actually the edge of a spherical bubble seen. Apparent magnitude (v) +8.9 :
