When the Curves Line Up

Watching the Sun, Moon and Planets

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2021: Venus as an Evening Star
When the Curves Line Up

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The Summer Triangle is in the sky in the morning, January 16, 2021

2021, January 16: The Summer Triangle – Vega, Deneb, and Altair – is in the east-northeastern sky before sunrise.

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Copyright Statement

This web site is written and edited by Dr. Jeffrey L. Hunt. The photos and diagrams on the site are made by the author unless otherwise credited.

Raw data is from the U.S. Naval Observatory and Starry Night computer program.

Content

Content is derived from multiple astronomical sources, including the U.S. Naval Observatory, NASA, ESA, and various books, including Astronomical Tables of the Sun, Moon and Planets by Jean Meeus. Starry Night and Stellarium computer programs are used as well. Updates and corrections are made as required. Some articles are updated at the time of actual astronomical events with new photographs. The author strives for accurate information.

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