The apparent magnitude of Neptune is 7.8
No. Its apparent magnitude (i.e., brightness) is about 8; with the naked eye, we can see objects up to approximately magnitude 6.
No. Its apparent magnitude (i.e., brightness) is about 8; with the naked eye, we can see objects up to approximately magnitude 6.
Antares Absolute and Apparent Magnitude Absolute Magnitude~ -5.2 Apparent Magnitude~ +0.60
it has an apparent magnitude of 2.1
Vega has an apparent magnitude of 0.03.
The apparent magnitude of Mercury varies because its brightness changes as it moves in its orbit about the sun. And the earth, from which we view Mercury and make a determination as regards it apparent magnitude, moves as well. It varies from -1.9 to 5.5 as we see it. (Some sources hold a -2.0 as a lower limit.) A link can be found below.
Apparent magnitude is the brightness of an object as seen from Earth without any atmosphere.
The two types are apparent magnitude, the magnitude of a star as it appears to us, and absolute magnitude, which is what a star's apparent magnitude would be at a standard distance of ten parsecs.
The apparent magnitude of the Cartwheel Galaxy is 15.2
The apparent magnitude of a star is a measure of its brightness.
The apparent magnitude is 2.4
Apparent magnitude: How bright something looks to us. Absolute magnitude: How bright something really is - expressed as the apparent magnitude it would have at a standard distance.