The 19th brightest star in the night sky
Luglio 21st, 2008 by Erika
Deneb (Alpha Cygni) is the brightest star in the constellation Cygnus and one of the vertices of the Summer Triangle. It is the 19th brightest star in the night sky, with an apparent magnitude of 1.25. A white supergiant, Deneb is also one of the most luminous stars known. It is, or has been, known by a number of other traditional names, including Arided and Aridif, but today these are almost entirely forgotten.
È il pensiero felice che mi fa andare avanti questa mattina.
Mancano ancora tre settimane alle ferie ed io non riesco a farmene una ragione.
Per fortuna che c’è lui.
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