Celestial Events – Page 4 – National Radio Astronomy Observatory

How Often Do We Have a “Blue Moon”?

Unfortunately, there are two commonly used definitions for a “Blue Moon”. Since a year has 12 months, and the…

Since the Earth completes one orbit around the Sun every year, it returns to the same position after 365.256…

Since the Earth’s rotational axis is tilted by about 23.5 degrees relative to its orbital plane, the path of…

I believe that you were seeing Venus on the SE horizon. As for what you identified as two planets…

To answer your first question, keep in mind that the geocentric ecliptic coordinate system is, as the name implies,…

For your first question, I believe that the azimuth values listed are geographic azimuth values, where azimuth 0 is…

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