Essays

• 101 Arp Galaxies and the Leonid Meteor Shower
• Astrophotography with the Nikon D100
• Astrophysics of Sunburns
• The Bright Stars of Orion
• Building an Observatory: A presentation by Daniel R. Blais
• Color Magnitude Diagram of M67
• The Distance to the Galactic Center
• Finding Our Place in the Universe
• How Heavy Can a Star Get?
• Is the HST Still Doing Good Science?
• Killer Asteroids
• Henrietta Swan Leavitt
• Lighting Myths
• The Milky Way versus M31
• The Mt. Lemmon Fire
• Observatories: The Good, the Bad and the Ugly
• Olbers' Paradox
• A Photographic Messier Marathon: March 19-20, 1988
• Protecting Radio Astronomy
• The Radio Frequency Spectrum
• Recommended Lighting Levels for Exterior Lighting
• 6401 Roentgen and 6914 Becquerel
• RR Lyrae Stars
• The Semi-Automation (Remote Control) of the 3towers Observatory
• Space Quarantine
• Sky Darkness and the Contrast Illusion
• Tri-Color CCD Imaging
• Tri-color Imaging of Selected Arp Galaxies
• Why I No Longer Use Film