John Case's Amateur Astronomy Page

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when this Amateur Astronomy page is Updated:

  • Abrams Planetarium Skywatchers Diary: BY MONTH

  • American Association of Variable Star Observers

  • Amateur Telescope Making: 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8

  • American Astronomical Society

  • Arp Peculiar Galaxies: 1 | 2

  • Ask the Astronomer (Dr. Sten Odenwald)

  • Asteroid and Comet Impact Hazards

  • Astronomy Clubs (Local):
  • Astronomy Equipment Beginning Information: 1 | 2 | 3

  • Astronomy Equipment Reviews: 1 | 2 | 3 | 4

  • Astronomy Equipment/Software:
  • Astronomy (and other) Gif Animations

  • Astronomy Star Parties (Mostly North America):
  • Astronomy/Telescope Terminology: 1 | 2

  • Astronomy at UD

  • Astronomy Magazine

  • Astronomy Posters: 1 | 2 | 3 | 4

  • Automated Telescopes

  • Binocular Power vs. Pupil Size

  • Comet Hale-Bopp 1 | 2

  • Comet Hyakutake: 1 | 2

  • Compass Magnetic Declination as Function of Lat/Long: Calculator | Approximate North American Chart | Full Page Containing Just Previous Chart

  • Current Month's Sky Events (Abrams Planetarium Skywatcher's Diary)

  • Delaware's Mt. Cuba Astr. Observatory, Greenville

  • Digitized Sky Survey

  • Edge-On Galaxies: Data version | Descriptive Version

  • Eyepiece Information and Specs

  • Globular Clusters:
  • Hertzsprung-Russell Diagram: 1 | 2 | 3

  • Hubble Space Telescope

  • Images of Messier Objects: 1 | 2

  • Images of The Solar System: 1 | 2 | 3

  • International Dark-Sky Association

  • Internet Resources:
  • Java Astronomy Animations: 1 | 2

  • Longitude/Latitude for: U.S. cities| World cities.
      For locals:

    • the University of Delaware's Christiana East Tower has coordinates and the Mount Cuba Astronomical Observatory, Greenville, DE, has coordinates and they are both in Timezone -5.

  • Mars' Appearance from Earth at any UTC/GMT Time

  • Messier Objects: A Month By Month Tour

  • Messier Objects grouped by Type of object

  • Messier Objects grouped under Constellations

  • Messier Objects in Numerical Order with associated Constellations and Common Names

  • Messier Objects in Numerical Order with associated NGC Numbers

  • Minimum Apeture for Deep Sky Objects indexed by constellation

  • National Aeronautics and Space Administration (NASA)

  • NGC Deep Sky Object Images: 1 | 2 | 3 | 4

  • Orrery of the Solar System

  • References For Getting Started in Amateur Astronomy

  • Rising/Setting Time of Planets, Etc.
    (user needs to correct for daylight savings time)

  • Sky and Telescope Magazine

  • Solar: Solar Observatory | Coronagraphics

  • Star Charts by Location/Time of Day
    (user needs to correct for daylight savings time)

      • For EE/CIS at UD: to print the images using the Postscript setting from above Planisphere, use Medium and add to the file created in /tmp a new first line:
      %!
      The Postscript setting, but not the GIF one will give (abbreviated) names of the contellations/planets.


  • Telescope Calculator

  • The Planetary Society

  • US Naval Observatory

  • Weather Forecasts:

  • What Type Scope to See Which Type Object?

  • What Particular Objects See with Which Type Scope?

    • Last revised: October 31, 2004
    John Case