Best Telescope Buyer's Guide
Amateur Astronomy - Telescope, Binocular and Imaging Forum
Astronomy Stack Exchange is a question and answer site for astronomers and astrophysicists. It only takes a minute to sign up. Is it possible for an amateur astronomer to visually perceive an exoplanet transit by the change of brightness of the star via observations spaced over time, or is the variation of the brightness too insignificant to be seen? I have a 70mm scope, but no astrophotography equipment or software to compare data. My question is about really perceiving the brightness variation with our own eyes over time as we see it on variable stars. That's a change you do not notice with the naked eye, but it needs photographic equipment to create a sequence of images which allow analysis of brightness of all seen stars in order to detect the variation in the one interesting one.
Best telescope for stargazing 2021: Explore the skies
X-ray astronomy is an observational branch of astronomy which deals with the study of X-ray observation and detection from astronomical objects. X-radiation is absorbed by the Earth's atmosphere , so instruments to detect X-rays must be taken to high altitude by balloons , sounding rockets , and satellites. X-ray astronomy is the space science related to a type of space telescope that can see farther than standard light-absorption telescopes, such as the Mauna Kea Observatories , via x-ray radiation.