Author Question: To keep a telescope fixed on a stellar target over time as Earth rotates, the telescope must have ... (Read 70 times)

ereecah · **on:** Jul 27, 2018

To keep a telescope fixed on a stellar target over time as Earth rotates, the telescope must have a/an ___________________ __.

Fill in the blank(s) with correct word

Question 2

The least massive main-sequence stars have a/an _____ luminosity class and a/an _____ spectral class.

Fill in the blank(s) with correct word