blah blah black sheep
spectrocity...absorption of select frequency of light ie spectrocity
By using the habo space telescle to detect the object's velocity
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.
Astronomers are able to identify chemicals in distant space with the use of spectral analysis. This breaks the light apart into a spectrum and find either emission lines or absorption lines and identifies which elements are present.
We determine the types of elements contained in the star or within the corona by analyzing the spectrum of the light we receive. Each element will radiate at a set of specific discreet frequencies, and the frequencies they radiate tell us what the element is, and how deeply ionized it is. The spectral analysis is exact; we can even determine the proportions of the elements that we see by the relative brilliance of their light. But there IS one thing that the spectrum cannot tell us; is this a normal matter star, or an anti-matter star?
Yes, astronomers can estimate the surface temperature of a star based on its spectral type, which is determined by the elements present in its atmosphere. Each spectral type corresponds to a range of surface temperatures, allowing astronomers to make an educated guess about a star's surface temperature.
You can typically tell if heat transfer has occurred between two objects by monitoring changes such as temperature increase or decrease, physical changes like melting or freezing, or the flow of energy from a higher temperature object to a lower temperature object.
Weight is due to gravitational forces between two objects. A single object inspace without another one reasonably nearby, or even in gravitational free-falltoward another object, is weightless. So you can not weigh an object in space.Determining the mass of objects in space is another matter.
They get distant, but you have to see it.
What elements the star is made of.
What makes up the star or element.
The people you should ask are called astronomers who study astronomy.