### astronomers:

Amateur astronomer
* Many amateur astronomers contribute to the science of astronomy.
* Many amateur astronomers have both a telescope and a pair of binoculars
  - difficulty locating faint or extended deep sky objects
  - telescopes that can reach very faint magnitudes
* Most amateur astronomers avoid zoom binoculars due to inherent limitations with zoom optics
  - discover nebulas
  - love to share their passion for astronomy with others
  - use telescopes
* Some amateur astronomers contribute to astronomical discoveries
  - important discoveries
  - many important astronomical discoveries
* are astronomers.
* can actually make some useful observations during total eclipses.
* have a long history of helping each other and sharing information.
* know there great deal of color variation.
* make contributions.
* observe detail on Jupiter all the time.
* play roles.
* use several handy techniques to determine distances in the sky

Astronomical object
* Most astronomical objects give off thermal radiation
  - look flat and two dimensional
  - orbit some body that it is more massive than it is
* Some astronomical objects exhibit rapid fluctuations in their outputs of radiation.
* emit energy over a broad spectrum
  - radiation at all wavelengths
* have an annoying complusion to slowly move across the sky, or at least seem to
  - no end in the uncollapsed wavefunction

### astronomical objects:

Celestial object
* Many celestial objects generate X-rays in extremely violent processes
  - shine quite brightly in the radio spectrum
* Most celestial objects rotate, but neutron stars rotate very rapidly.
* Some celestial objects are more suited to view with binoculars then with telescopes.
* are astronomical objects
  - heavenly bodies
  - in an etheric class all their own
  - located in skies
* look very different in the infrared.
* travel along their own orbits under the influence of gravitational pulls.

### astronomical objects:

Molecular cloud
* Most molecular clouds are sites of star formation.
  - colder and denser than the rest of the interstellar medium
  - interstellar clouds
  - patches of the interstellar medium that are so dense that molecules can form
  - relatively dense, cold clouds of gas, spread throughout the disk of our Galaxy
  - the sites where stars form in galaxies
  - thousands to millions of solar masses of gas and dust, and can form many stars
  - vast areas of concentrated dust and gases between the stars
* have various temperatures.

Spiral arm
* are astronomical objects
  - due to density waves traveling through the galaxy
  - like compression waves which move through the disk of our Galaxy
  - often sites of star formation
  - sites of star formation and are rich in interstellar matter
* result from waves of star formation going through the disk of the galaxy.
* wind tighter and spirals become more spiral the further into the cleft one zooms.

Asymmetry
* Asymmetries affect measurements
  - can be costly if they affect survival
  - soon develop as the membrane rips apart, ejecting a directional spray from the surface
* balances the surface of the blade as it is pulled through the water.
* decreases with increasing distance from nucleus.

### asymmetry:

Directionality
* is always more pronounced at high frequency than low
  - an asymmetry
* refers to the facilitative or debilitative aspects of anxiety.

Facial asymmetry
* is an indication of aging.
* occurs in some cases.

Fluctuating asymmetry
* correlates with lower survival and growth rates, and fewer offspring.
* measurement of non-directional deviation from bilateral symmetry.

Hemispheric asymmetry
* Hemispheric asymmetries exist and influence behavior.
* exists at both a functional and structural level.