weights
Spectrograph.
A spectrometer.
telescope
IT IS USED for us to see planets part of space and some parts of our heavenly bodies and it is also used for astronomers to see heavenly bodies for then to write a fact about our space
Optical or radio telescope
nearly all heavenly bodies that can observed by the naked eye can be used for navigation.... assuming you can identify the body of course!
Binoculars, cameras, the human eye, probes...
size, shape, and relationship to the surrounding rock layers
Three units are commonly used in astronomy - the astronomical unit; the light-year; and the parsec.
It would be Nicholas Copernicus
naming the species, grouping the species.. and more
The 6 kind of data used to classify an organism are: taxonomy, taxonomist, and biochemical, and chromosal information, physical and structural information. All of these are classified as living things.