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See All Terroir, Oenophile, & Magnum: Ten Words About Wine 8 Words for Lesser-Known Musical Instruments 10 Words from Taylor Swift Songs (Merriam's Version) 9 Superb Owl Words 15 Words That Used to Mean Something Different Games & Quizzes ...
Name Cat's Eye Nebula Object Type Planetary Nebula Constellation Draco Distance (light-years) 3,300 Apparent Mag. +8.2 RA (J2000) 17h 58m 33s DEC (J2000) 66d 38m 00s Apparent Size (arcsecs) 20 x 16 (centre) Radius (light-years) 0.15 (centre) Other Names Snail Nebula, Sunflower...
If the IAU’s definition were consistently applied, the crust of Europa would be a “non-planetary crust” because crusts would not be characteristic of planets and in particular Europa’s would be an example of a crust from a non-planet. The same would be true for planetary albedo, ...
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The increase in discovered close binary central stars of planetary nebulae is leading to a sufficiently large sample to begin to make broader conclusions about the effect of close binary stars on common envelope evolution and planetary nebula formation. Herein I review some of the recent results and...
Indeed, the central star of M 2-9 has been shown to be a symbiotic-like system with a period of 86 ± 5 year [69], where the lighthouse-like variability in the highly bipolar nebula is likely the product of a rotating, collimated jet launched by the binary. Ultimately, the lack of...