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Astronomer study the universe, stars and galaxies.

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Astronomer or astrophysicist are people whose area of interest is astronomy or Astrophysics.

The modern astronomer.

Johannes Hevelius was famed for his work on sunspots, and being the first to study the surface of the Moon.

The progress in technology and wealth has enabled many more types of Astronomers than ever before. Advances in imaging technology have brought about an unprecedented sharing of visual and sub-visual phenomena in the sky, both day and night events. Web proliferation of space derived data has enabled many phenomena to be observed by more astronomers than ever before, especially auroral displays, comet appearances, and occultations. Advances in software to guide telescopes and cameras, and measure the light values accurately, had enabled higher quality images and vast contributions to be made by many more astronomers, than previously. Yet another type of Astronomer can be identified; the website builder and promoter, sharing science and sky images as part of the growth in networking astronomy, in-turn, encouraging the growth by disseminating both result and technique. Even the recent discovery of earth impact craters by so-called 'arm-chair' astronomers, using Google Earth, is a newly enabled valid type of Astronomer. Astronomers are often mathematicians, but more than likely looking through a telescope or camera and recording the image. Observing, measuring, and sharing occultation events is a growing activity, highly important to adding knowledge of and future predictions of sky objects, such as the shape of the moon, asteroids, and planets to a very high accuracy, with a modest investment in equipment.

The division between a professional and an amateur astronomer is more blurred than ever before, with amateur astronomers contributing to many fields of knowledge, often significant, micro-lensing as a planet discovery method for instance. The division is often a perceived gap, inside astronomy there is often no gap.

Current activities by astronomers.

  • measuring orbital data of objects.
  • measuring chemical composition of objects.
  • measuring light values of sky objects.
  • imaging solar activity.
  • imaging auroral activity.
  • imaging comets.
  • teaching astronomy.
  • building astronomy websites.
  • promoting astronomy.
  • running email lists to share and disseminate info quickly.
  • travelling to astronomical events, such as eclipse, special telescopes, conferences, etc.
  • developing optics.
  • manufacturing electronic equipment.
  • observing astronomical events, recording and sharing the information.
  • observing and recording stars and other celestial bodies.
  • observing the phases of a star.
  • viewing other galaxies.

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