Understanding Earth's Rotation: The Effects on Telescope Observations

  • Context: High School 
  • Thread starter Thread starter crx
  • Start date Start date
  • Tags Tags
    Earth Rotation
Click For Summary
SUMMARY

The discussion focuses on the effects of Earth's rotation on telescope observations, particularly with a 70mm diameter and 600mm focal length telescope. Users noted that when using a 9mm eyepiece, stars appear to move quickly out of the field of view, which is attributed to Earth's rotation. The jerky motion observed is confirmed to be caused by atmospheric turbulence and potential shaking of the telescope due to wind, rather than an optical illusion.

PREREQUISITES
  • Understanding of basic telescope mechanics and optics
  • Familiarity with atmospheric turbulence and its effects on astronomical observations
  • Knowledge of magnification and its impact on field of view
  • Experience with telescope stability and setup in outdoor conditions
NEXT STEPS
  • Research atmospheric turbulence and its impact on telescope observations
  • Learn about telescope stabilization techniques for outdoor use
  • Explore the effects of magnification on field of view in telescopes
  • Investigate the principles of Earth's rotation and its implications for astronomy
USEFUL FOR

Astronomy enthusiasts, amateur astronomers, and anyone interested in improving their telescope observation techniques and understanding the effects of Earth's rotation on celestial viewing.

crx
Messages
80
Reaction score
0
i have a little telescope of 70mm in diameter and 600mm focal length, its just good too see ...birds, but when i use the 9mm eyepiece and zoom to a star , the star's image will quickly pass to the vision field because of the rotation of the Earth. What i observed could be just an, optical illusion but it seems that the movement of the star in the image its not constant but its jerking, its like a non uniform motion , ...have any idea?
 
Astronomy news on Phys.org
It's pretty uniform!
The jerky motion is either due to movement of the telescope shaking in the wind, or at high magnification the atmospheric turbulence or 'seeing'
 

Similar threads

High School Neutron star 4U 1820-30 spins at 716 revolutions per second
  • · Replies 0 ·
Replies
0
Views
3K
Stargazing Fixing declination runaway on a Meade LX200 telescope
  • · Replies 6 ·
Replies
6
Views
5K
Stargazing Is it a true explanation of an aberration of starlight?
  • · Replies 3 ·
Replies
3
Views
2K
Undergrad Tidal effects on Earth's rotation and moon's orbit
  • · Replies 10 ·
Replies
10
Views
5K
Undergrad Condition for Centering Starlight in a Water-Filled Telescope?
  • · Replies 6 ·
Replies
6
Views
3K
High School Temperature of a black hole....observed from the singularity
  • · Replies 13 ·
Replies
13
Views
5K
Undergrad Orientation of the Earth, Sun and Solar System in the Milky Way
  • · Replies 142 ·
5
Replies
142
Views
139K
Optical Is my DIY refractor telescope out of focus with the eyepiece?
  • · Replies 2 ·
Replies
2
Views
3K
Graduate Flat galaxy rotation curves without dark matter
  • · Replies 1 ·
Replies
1
Views
3K
Stargazing Spatial and Angular Resolution of a Earth observing Telescope
  • · Replies 5 ·
Replies
5
Views
7K