ASTROMETRICS: Close Double Star Separation Calculator

A Project of the AstroTalk dblGUTteam.

(Calculator uses JavaScript1.2 extensively. Problems may occur with some browsers.)

Calculation Input:

Telescope Type: Refractor
  Newtonian
  Catadioptic
Primary Aperture (mm):
Central Obstruction Size (mm):
Primary Star Magnitude:
Secondary Star Magnitude:
Pair Separation (arc-seconds):
Unaided Visual Magnitude Limit:
Seeing Stability:
   
   

Calculation Results:

Estimated Resolvability:
Estimated Pair Gap (arc seconds):
Estimated Average Theoretical Airy Disk Size:
Calculated Telescopic Limiting Magnitude:
Recommended Resolve Magnification:
   

To estimate resolvability of two stars of wildly unequal magnitudes use:
The Disparate Double Star Resolution Calculator.

To estimate the separation between two close doubles
based on thinline resolution magnification use
The Close Double Star Separation Calculator.

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