Apex question. Trashed to NEI.
(PS. Next time, if its multiple choice, why dontcha go ahead and give the possible answers.)
Sun
Constellation or "asterism". The difference is that "constellations" are officially recognized by the International Astronomical Union, while an "asterism" is any other pattern or grouping of stars.
europa Yes, europa is the brightest.
After the Sun, the brightest star is Sirius, in the constellation Canis Major. However, while Sirius is the brightest star visible from the Northern Hemisphere, it is part of a southern hemisphere constellation. Therefore, Arcturus, in Bootes, would be the brightest Northern Hemisphere star.
The moon Io would look the brightest from the surface of Jupiter because It is the nearest.
Brightness is related to luminousity and distance. On Earth, the brightest thing would be a nuclear explosion. In space, the brightest thing would be a supernova, but it all depends on the distance from it.
Constellation or "asterism". The difference is that "constellations" are officially recognized by the International Astronomical Union, while an "asterism" is any other pattern or grouping of stars.
A polypeptide is an organic polymer that consists of a large number of amino acids linked together in a chain. The shape of a polypeptide determines its function.
globular proteins .
europa Yes, europa is the brightest.
a galaxy contains millions or even billions of stars
The brightest star would be the Sun. See related question.
the blue giant is the brightest star
After the Sun, the brightest star is Sirius, in the constellation Canis Major. However, while Sirius is the brightest star visible from the Northern Hemisphere, it is part of a southern hemisphere constellation. Therefore, Arcturus, in Bootes, would be the brightest Northern Hemisphere star.
Even on Jupiter, or in the vicinity of Jupiter, the sun is still the brightest object in the sky. The brightest planet would be Saturn.
The moon Io would look the brightest from the surface of Jupiter because It is the nearest.
In the Milky Way galactic halo, orbiting the galactic center in a long elliptical orbit around the galactic center
globular proteins .