The object is moving away from the observer.
I don't think that "refreshing" is a common term in astronomy. If you mean "redshift", please ask a separate question.
Astronomers rate the magnitude of a star using the apparent magnitude scale, which measures the brightness of a star as seen from Earth. The lower the magnitude number, the brighter the star appears. Negative numbers indicate very bright stars, while positive numbers indicate dimmer stars.
Mainly astronomers. But cosmologists and astrophysicists will also be interested in outer space.
Analysis of colors from objects in space can help astronomers determine the object's temperature, composition, and age. Different colors indicate different chemical elements present in the object, as well as its evolutionary stage. By studying the colors, astronomers can gain valuable insights into the physical properties and processes occurring in space.
They are called astronomers.
Perhaps in the future astronomers will do all the redshifts of the 100 billion galaxies in the universe.
Quasars typically have large redshifts, which indicate that they are moving away from us at high speeds. This redshift is due to the expansion of the universe and can help astronomers determine the distance and age of quasars.
No, because it will be impossible for astronomers to get all 100 billion redshifts for all 100 billion galaxies in the observable universe.
No. We do not have time to make so many measurements.
The object is moving away from the observer.
Yes, very large redshifts.
They can do so by examining the light from the star. Doppler shift can indicate this
I don't think that "refreshing" is a common term in astronomy. If you mean "redshift", please ask a separate question.
It is not possible to list all designations and redshifts of all 100 billion galaxies (cseligman.com/text/atlas/pgc00.htm)
Astronomers rate the magnitude of a star using the apparent magnitude scale, which measures the brightness of a star as seen from Earth. The lower the magnitude number, the brighter the star appears. Negative numbers indicate very bright stars, while positive numbers indicate dimmer stars.
Astronomers indicate the probability of us all really going to be sucked into a black hole to be quite low.
All astronomers are scientists.All astronomers are scientists.All astronomers are scientists.All astronomers are scientists.