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Hebrew astronomy
Hebrew astronomy refers to any astronomy written in Hebrew or by Hebrew speakers, or translated into Hebrew, or written by Jews in Judeo-Arabic. It includes a range of genres from the earliest astronomy and cosmology contained in the Bible, mainly the Tanakh (Hebrew Bible or "Old Testament"), to Jewish religious works like the Talmud and very technical works.
Some Persian and Arabian traditions ascribe the invention of astronomy to Adam, Seth and Enoch. Some scholars suggest that the signs of the zodiac, or Mazzaloth, and the names of the stars associated with them originally were created as a mnemonic device by these forefathers of the Hebrews to tell the story of the Bible.
Historian Flavius Josephus says Seth and his offspring preserved ancient astronomical knowledge in pillars of stone.
Only a few stars and constellations are named individually in the Hebrew Bible, and their identification is not certain. The clearest references include:
Aside from the Earth, only two planets are named in the Hebrew Bible:
The information preserved in the Talmud does not emanate from one homogeneous system, as they are the accumulations of at least four centuries, and are traceable to various authors in the Jerusalem and Babylonian Talmuds, among whom many were inclined to mysticism.
The high value of astronomical knowledge is already demonstrated by the astronomical section of the Book of Enoch (about 72–80 BC), as well as by such sayings as those of Eleazar Hisma (about 100), a profound mathematician, who could "count the drops in the ocean", and who declared that the "ability to compute the solstice and the calendar is the 'dessert' [auxiliaries] of wisdom. Among the sciences that Johanan ben Zakkai mastered was a knowledge of the solstices and the calendar; i.e., the ability to compute the course of the Sun and the Moon. Later writers declare that "to him who can compute the course of the sun and the revolution of the planets and neglects to do so, may be applied the words of the prophet, 'They regard not the work of the Lord, nor consider the operation of His hands.'" To pay attention to the course of the Sun and to the revolution of the planets is a religious injunction; for such is the import of the words, "This is your wisdom and your understanding in the sight of the nations".
Despite the general importance and religious significance attached to astronomy in the Holy Land, no notable developments in astronomy happened there during the Talmudic period. The starry heavens of the land of Israel interested the Jews as creations of God and as means to determine the holidays, but for a better knowledge of them the Jews were undoubtedly indebted to the Babylonians and their Hellenic pupils, as evidenced by the foreign term gematria used to designate the computation of the calendar. Probably this word represents a transposition of the Greek γραμματεία meaning "arithmetic, mathematics". Most of the observations of a scientific nature were transmitted by Samuel of Nehardea, who attended the schools of the Babylonians, and who claimed to possess as exact a knowledge of the heavenly regions as of the streets of Nehardea. Certain rules must nevertheless have existed, because Rabban Gamaliel (about 100), who applied the lunar tablets and telescope, relied for authority upon such as had been transmitted by his paternal ancestors.
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Hebrew astronomy
Hebrew astronomy refers to any astronomy written in Hebrew or by Hebrew speakers, or translated into Hebrew, or written by Jews in Judeo-Arabic. It includes a range of genres from the earliest astronomy and cosmology contained in the Bible, mainly the Tanakh (Hebrew Bible or "Old Testament"), to Jewish religious works like the Talmud and very technical works.
Some Persian and Arabian traditions ascribe the invention of astronomy to Adam, Seth and Enoch. Some scholars suggest that the signs of the zodiac, or Mazzaloth, and the names of the stars associated with them originally were created as a mnemonic device by these forefathers of the Hebrews to tell the story of the Bible.
Historian Flavius Josephus says Seth and his offspring preserved ancient astronomical knowledge in pillars of stone.
Only a few stars and constellations are named individually in the Hebrew Bible, and their identification is not certain. The clearest references include:
Aside from the Earth, only two planets are named in the Hebrew Bible:
The information preserved in the Talmud does not emanate from one homogeneous system, as they are the accumulations of at least four centuries, and are traceable to various authors in the Jerusalem and Babylonian Talmuds, among whom many were inclined to mysticism.
The high value of astronomical knowledge is already demonstrated by the astronomical section of the Book of Enoch (about 72–80 BC), as well as by such sayings as those of Eleazar Hisma (about 100), a profound mathematician, who could "count the drops in the ocean", and who declared that the "ability to compute the solstice and the calendar is the 'dessert' [auxiliaries] of wisdom. Among the sciences that Johanan ben Zakkai mastered was a knowledge of the solstices and the calendar; i.e., the ability to compute the course of the Sun and the Moon. Later writers declare that "to him who can compute the course of the sun and the revolution of the planets and neglects to do so, may be applied the words of the prophet, 'They regard not the work of the Lord, nor consider the operation of His hands.'" To pay attention to the course of the Sun and to the revolution of the planets is a religious injunction; for such is the import of the words, "This is your wisdom and your understanding in the sight of the nations".
Despite the general importance and religious significance attached to astronomy in the Holy Land, no notable developments in astronomy happened there during the Talmudic period. The starry heavens of the land of Israel interested the Jews as creations of God and as means to determine the holidays, but for a better knowledge of them the Jews were undoubtedly indebted to the Babylonians and their Hellenic pupils, as evidenced by the foreign term gematria used to designate the computation of the calendar. Probably this word represents a transposition of the Greek γραμματεία meaning "arithmetic, mathematics". Most of the observations of a scientific nature were transmitted by Samuel of Nehardea, who attended the schools of the Babylonians, and who claimed to possess as exact a knowledge of the heavenly regions as of the streets of Nehardea. Certain rules must nevertheless have existed, because Rabban Gamaliel (about 100), who applied the lunar tablets and telescope, relied for authority upon such as had been transmitted by his paternal ancestors.