Startseite > Begriffe > Lateinamerikanisches Spanisch (XL) > cometa

cometa

A celestial body orbiting the sun (though some may be ejected from the solar system by planetary perturbations) that displays (at least during a portion of its orbit) some diffuseness and/or a "tail" of debris that points generally in the anti-solar direction. Both the diffuseness (generally called a coma) and the tail are composed of gas and/or dust of various atomic or molecular compositions, as is ascertained by spectroscopy. The coma and tail material come from a much smaller nucleus that is usually invisible due to the bright surrounding coma activity. Close-up pictures of a cometary nucleus did not occur until spacecraft fly-bys of Halley's comet in 1986. A more detailed explanation of what a comet is may be found in the Press Information Sheet on comet C/1995 O1 (Hale-Bopp).

0
Zu "Mein Glossar" hinzufügen

Was möchtest du sagen?

Du musst dich anmelden, um an Diskussionen teilzunehmen.

Begriffe aus den Nachrichten

Ausgewählte Begriffe

Gabriela Lozano
  • 0

    Begriffe

  • 0

    Glossare

  • 7

    Beobachter

Branche/Gebiet Meeresfrüchte Kategorie Allgemeine Meeresfrüchte

salmón

A meaty fish with firm, flavorful flesh. High in protein, the meat is an excellent source of Omega-3 fatty acids. It can often be found on our fresh ...