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AstroRav: Torah & Astronomy

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Tag: Jewish Calendar

Will the Real Equinox(+60) Please Stand Up?

Why do we annually begin saying ותן טל ומטר on Dec. 4th or 5th when the Talmud and Shulchan Aruch say otherwise?

Midrash & the Making of the Moon

Shemot Rabbah on Parshat Hachodesh and Barchi Nafshi helps explain difficulty on the Moon in Genesis…

The First Mitzvah, The First Month

Astronomy is a prerequisite for the first mitzvah, which we read about in Parshat Hachodesh…

The Thirteenth Month and the Constellation Ophiuchus

The thirteenth month, Adar, and the thirteenth Zodiac constellation, Ophiuchus. what is the connection?

Recent Posts

  • Abraham the Astronomer Part 2
  • Abraham the Astronomer
  • Rosh Hashanah vs. The Sun Blessing
  • Origins of Rainwater in Taanit
  • Lunar Observations in Rosh Hashanah

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aytan kadden's avataraytan kadden on Machar Chodesh: What’s H…
Dreidel Earth | Astr… on The First Festival of Light

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