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Teo

10 Iun 2011 10:38



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Interesant. Pacat ca locatia asta poluata nu imi permite iesirea mai frecventa la observatii.
Am gasit cateva informatii privind aceasta stea.
Se pare ca unii o percep ca fiind alba iar altii verde. Sunt curios cum as vedea-o eu.
Oricum o sa o am in vedere de aici incolo, iar cand voi pleca la tara nu voi neglija sa indrept newtonianul de 150/750mm spre ea. :)

Iata si informatiile gasite :

"Zubeneschamali
The white star as one of very few stars is perceived by some people as green. Others see it white. Zubeneschamali indeed glows strongest in green light, but the other spectral colors are also very strong. This results in the combination color white.
The star rotates about 100 times faster as our Sun.

Constellation: Libra
Distance: 160 light-years
Spectral class: B8
Visual magnitude: 2.7
Luminosity: 130 * Sun
Mass: 4 * Sun "

Sursa :  http://jumk.de/astronomie/special-stars/zubeneschamali.shtml

