Optimal Right Ascension Values for Star Viewing at Different Latitudes

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SUMMARY

The optimal right ascension values for star viewing on September 21st are determined by the observer's latitude. For an observer at -32 degrees, 20 arcminutes, and 10 arcseconds, the best viewing occurs between 7 hours and 17 hours of right ascension, as the Sun is at 0 hours during the vernal equinox, blocking 0-6 hours and 18-24 hours. Conversely, for an observer at 45 degrees, 22 arcminutes, and 11 arcseconds, the ideal viewing times are between 0-5 hours and 19-24 hours of right ascension due to similar solar positioning. This analysis provides a clear framework for optimal star viewing based on latitude and time of year.

PREREQUISITES
  • Understanding of right ascension in astronomy
  • Knowledge of celestial coordinates and their significance
  • Familiarity with the concept of solar blocking during equinoxes
  • Basic observational astronomy skills
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  • Research the effects of latitude on celestial visibility
  • Learn about the celestial sphere and its coordinate system
  • Explore the significance of equinoxes in astronomy
  • Investigate tools for calculating optimal viewing times for celestial events
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Astronomy enthusiasts, amateur astronomers, and anyone interested in optimizing star viewing based on geographic location and seasonal changes.

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Homework Statement


What range of values of right ascension would be best for viewing stars at a latitude of -32 degrees, 20 arcmins, 10 arcseconds on September 21st? What about an observer at 45deg22arcm11arcs?

Homework Equations


N/A

The Attempt at a Solution



On these dates the Sun would be approximately at 0 hours of right ascension in southern hemisphere as it is the vernal equinox. Because of this, between 0hrs and 6hrs of right ascension will be blocked by the sun as well as 18 to 24 hours. Thus between 7 hours of right ascension and 17 hours would be best for viewing the stars at this date. For northern hemisphere, 6-18hrs are blocked by the sun, therefore 0-5hr and 19-24hr are best for viewing.

I am not sure if I am on the right track here or not and how to get more precise based on the degree of latitude?
 
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Hmm is this in the wrong subforum perhaps?
 

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