| Risultati della ricerca nelle immagini - "Lulin" |
Comets-Comet_Lulin04-Lodriguss.jpgLulin and Saturn near Opposition58 visiteDa "NASA - Picture of the Day" del giorno 27 Febbraio 2009:"Tracking through the constellation Leo on February 23rd, bright planet Saturn and Comet Lulin were both near Opposition -- such as opposite to the Sun in Planet Earth's Sky.
They also passed within only 2° of each other creating a dramatic celestial photo-op. Comet Lulin was near its closest approach to planet Earth at the time, at a distance of some 61 MKM, but was orbiting in the opposite direction.
As a result it swept remarkably rapidly across the background of stars. This telephoto image captures both bright Saturn and greenish Lulin in the same field in a scene not too different from binocular views.
Don't recognize ringed Saturn? The rings are presently tilted nearly edge-on to our view and the brighter Planet is overexposed to record details of the fainter comet. At the upper right, Saturn is marked by multiple diffraction spikes created by the aperture blades in the telephoto lens".
MareKromium
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Comets-Comet_Lulin_05.jpgComet Lulin and distant Galaxies56 visiteCaption NASA, da "NASA - Picture of the Day" del giorno 7 Marzo 2009:"Now fading in our night sky, Comet Lulin has provided some lovely cosmic vistas. Moving rapidly against the background of stars, Lulin briefly posed with the likes of Saturn and Regulus (Alpha Leo).
But here it is seen against a field of distant galaxies. To reveal the faint background galaxies and trace the Comet's fading tail, the remarkable picture is a blended composite of telescopic exposures aligned with the both the stars and the speedy comet. The largest galaxies seen left of the comet's head or coma are cataloged as NGC 3016, NGC 3019, NGC 3020 and NGC 3024 and lie at a distance of 100 MLY or so.
When the exposures were made, on February 28, the Lulin was about 3,6 Light-Minutes from Earth".MareKromium
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