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# Right ascension

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At what time will Galaxy-Cygnus A cross the celestial meridian (along north-south) direction on March 12 and 13 2005?

https://brainmass.com/physics/stars/formula-right-ascension-35616

#### Solution Preview

The question is asking at what time (I assume they mean your local time) Cygnus A will pass most closely over your head on March 12-13.

To answer this, you'll need to look up the right ascension of Cygnus A (which you can find quite easily on the internet. For now, let's just assume Cygnus A has right ascension of 20 hours (this is only an approximation, you should really look it up to get the right ascension in hours, minutes, and seconds).

Right ascension is given in units of time because it is defined such that on object having a right ...

#### Solution Summary

A formula for right ascension is included and the details are presented.

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