HPO

Astronomy

Hopkins Phoenix
Observatory

Not so Amateur Astronomy!

Astronomical
Photoelectric Photometry

Algol Visual Magnitude Phase
HPO UBV Photon Counting

What is Astronomical Photoelectric Photometry?


Bright Variable Star List

Eclipsing Binary Star Systems

Long Period Eclipsing Binary Systems

Short Period Eclipsing Binary Systems


Interesting Star Systems

Algol (beta Persei) Demon Star Eclipsing Binary Star System

Delta Scorpii Variable Star

Epsilon Aurigae Eclipsing Binary Star System

Theta 1 Orionis A


Organizations


White Papers


    • Calibration Introduction
      Air Mass

    • Extinction Coefficients
    • Extinction Coefficients Shortcuts
    • Determinging Color
      Transformation Coefficients

FREEBIES


Return

Present Page Version as of 15 February 2007

phxjeff@hposoft.com
www.hposoft.com