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Solar Activity
[ Solar Activity ]

·Astronomy: Solar Activity - THE SUNSPOT CYCLE
·Astronomy: Solar Activity - Sunspot-OBSERVING SUNSPOTS
·Astronomy: Solar Activity - SUNNY SIDE UP
·Astronomy: Solar Activity - SKETCHING SUNSPOTS
·Astronomy: Solar Activity - Radio Signal-SUNNY RADIO SIGNALS
·Astronomy: Solar Activity - DOES THE SUN VARY
·Astronomy: Solar Activity
 

 
 
Astronomy & Telescope Astronomy: Computer Control

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  Computer Control Computer Control: Astronomy: Computer Control - SKY COORDINATES

SKY COORDINATES

Every location on Earth has a latitude and longitude coordinate. Latitude measures how far north or south of the Earth's equator a place is. Longitude measures how far west or east a place is from a north-south line called the prime meridian, which runs through .Greenwich, England.

 
 
  Posted by astronomy on Wednesday, December 01 @ 15:39:55 CST (19 reads)
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  Computer Control Computer Control: Astronomy: Computer Control - SETTING CIRCLES

SETTING CIRCLES

Most equatorial mounts have numbered dials on each axis. These are manual, or analog, setting circles, and they can be used to locate an object using its right ascension and declination coordinates. However, newcomers to astronomy rarely find setting circles very helpful. The dials require careful adjustments with every use and can quickly lose accuracy as the sky moves during the night.

 
 
  Posted by astronomy on Wednesday, December 01 @ 15:38:51 CST (16 reads)
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  Computer Control Computer Control: Astronomy: Computer Control - HANDS-OFF ASTRONOMY

HANDS-OFF ASTRONOMY

A step up in sophistication is a telescope with high-speed stepper motors on each axis and a computerized hand controller to drive them. Select an object on the hand controller's display, press "Go," and the telescope automatically slews itself across the sky to the target. You can also operate these telescopes from a laptop computer with a sky-charting program. Point at a galaxy on the screen, click die mouse, and away the telescope goes to find the real galaxy.

 
 
  Posted by astronomy on Wednesday, December 01 @ 15:37:45 CST (17 reads)
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  Computer Control Computer Control: Astronomy: Computer Control

COMPUTER CONTROL

Computer technology now makes it possible to find even the most obscure galaxy at the mere push of a button.

 
 
  Posted by astronomy on Wednesday, December 01 @ 15:36:28 CST (16 reads)
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