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):
Highest Unresolved Pair Magnification:
Lowest Resolved Pair Magnification:
Unaided Visual Magnitude Limit:
Appearance of Primary's Airy Disk:
Primary Star Magnitude:
Secondary Star Magnitude:
   
   

Calculation Results:

Estimated Pair Separation (arc seconds):
Estimated Magnification at Thinline Resolve:
Estimated Average Theoretical Airy Disk Size:
Calculated Telescopic Limiting Magnitude:
Estimated Range of Accuracy:
   
 
   

To determine whether your scope can resolve a specific Double Star pair
use The Close Double Star Resolution Calculator.

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