الكواكب التقليدية

لمعلومات عن the failed IAU planet category of Classical Planets، انظر IAU definition of planet.
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A classical planet is an astronomical object that is visible to the naked eye and moves across the sky and its backdrop of fixed stars (the common stars which seem still in contrast to the planets). Visible to humans on Earth there are seven classical planets (the seven luminaries). They are from brightest to dimmest: the Sun, the Moon and the five star-like classical planets, the astra planeta (Venus, Jupiter, Mars, Mercury and Saturn).

These classical planets were recorded during classical antiquity, introducing the term planet, which means originally "wanderer" in Greek (πλάνης planēs and πλανήτης planētēs), expressing the fact that these objects move across the celestial sphere relative to the fixed stars.[1][2] Greek astronomers such as Geminus[3] and Ptolemy[4] often divided the seven planets into the Sun, the Moon, and the five star-like astra planeta.

Through the use of telescopes other celestial objects like the classical planets were found, starting with the Galilean moons in 1610. Today the term planet is used considerably differently, with a planet being defined as a natural satellite directly orbiting the Sun (or other stars) and having cleared its own orbit. Therefore only five of the seven classical planets remain recognized as planets, alongside Earth, Uranus and Neptune.

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History

للمزيد من المعلومات: Babylonian astronomy
انظر أيضاً: Mandaean cosmology § Planets

The Babylonians recognized seven planets. A bilingual list in the British Museum records the seven Babylonian planets in the following order:[5]

Sumerian language Akkadian language Syriac Language Mandaic Language English language Presiding deity
Aku Sin Sin/Sahra Moon Sin/Suen
Bišebi Šamaš Šemša Sun Utu
Dapinu Umun-sig-êa Bel Jupiter Šulpae
Zib/Zig Dele-bat Istra/Dlibat Venus Ištar
Lu-lim Lu-bat-sag-uš Kewan Saturn Ninib/Nirig/Ninip,[أ][6] possibly Enlil[7]
Bibbu Lubat-gud Navo Mercury Nabu/Nebo
Simutu Muštabarru Nirig/Nergal Mars Nergal

In Mandaeism, the names of the Seven Planets are derived from the seven Babylonian planets.[8] Similarly, in Syriac, all the planet names derive from the Babylonian planets in the Akkadian language.

The same seven planets, along with the ascending and descending lunar node, are mentioned in Vedic astrology as the nine Navagraha.


Symbols

مقال رئيسيs: Astrological symbols and Planet symbols

The astrological symbols for the classical planets appear in the medieval Byzantine codices in which many ancient horoscopes were preserved.[9] In the original papyri of these Greek horoscopes, there are found a circle with one ray (old sun symbol) for the Sun and a crescent for the Moon.[10] The written symbols for Mercury, Venus, Jupiter, and Saturn have been traced to forms found in late Greek papyri.[11] The symbols for Jupiter and Saturn are identified as monograms of the initial letters of the corresponding Greek names, and the symbol for Mercury is a stylized caduceus.[11]

A. S. D. Maunder finds antecedents of the planetary symbols in earlier sources, used to represent the gods associated with the classical planets. Bianchini's planisphere, produced in the 2nd century,[12] shows Greek personifications of planetary gods charged with early versions of the planetary symbols: Mercury has a caduceus; Venus has, attached to her necklace, a cord connected to another necklace; Mars, a spear; Jupiter, a staff; Saturn, a scythe; the Sun, a circlet with rays radiating from it; and the Moon, a headdress with a crescent attached.[13] A diagram in Johannes Kamateros' 12th century Compendium of Astrology shows the Sun represented by the circle with a ray, Jupiter by the letter zeta (the initial of Zeus, Jupiter's counterpart in Greek mythology), Mars by a shield crossed by a spear, and the remaining classical planets by symbols resembling the modern ones, without the cross-mark seen in modern versions of the symbols.[13] The modern Sun symbol, pictured as a circle with a dot (☉), first appeared in the Renaissance.[10]

Planetary hours

مقال رئيسيs: Planetary hours and Names of the days of the week

The Ptolemaic system used in Greek astronomy placed the planets by order of proximity to Earth in the then-current geocentric model, closest to furthest, as the Moon, Mercury, Venus, Sun, Mars, Jupiter, and Saturn.[14] In addition the day was divided into seven-hour intervals, each ruled by one of the planets, although the order was staggered (see below).

The first hour of each day was named after the ruling planet, giving rise to the names and order of the Roman seven-day week. Modern Latin-based cultures, in general, directly inherited the days of the week from the Romans and they were named after the classical planets; for example, in Spanish Miércoles is Mercury, and in French mardi is Mars-day.

The modern English days of the week were mostly inherited from gods of the old Germanic Norse culture – Wednesday is Wōden’s-day (Wōden or Wettin eqv. Mercury), Thursday is Thor’s-day (Thor eqv. Jupiter), Friday is Frige-day (Frige eqv. Venus). Equivalence here is by the gods' roles; for instance, Venus and Frige were both goddesses of love. It can be correlated that the Norse gods were attributed to each Roman planet and its god, probably due to Roman influence rather than coincidentally by the naming of the planets. A vestige of the Roman convention remains in the English name Saturday.

Weekday Planet Greek god Germanic god Weekday
French name Roman god Greek name Norse name Saxon name English name
dimanche Sol Helios Sól Sunne Sunday
lundi Luna Selene Máni Mōnda Monday
mardi Mars Ares Týr Tīw Tuesday
mercredi Mercury Hermes Óðinn Wōden / Wettin Wednesday
jeudi Jupiter Zeus Þórr Thunor Thursday
vendredi Venus Aphrodite Frigg Frige Friday
samedi Saturn Cronus Njörðr[15] Njord[15] Saturday

الخيمياء

للمزيد من المعلومات: الرموز الفلكية

In alchemy, each classical planet (Moon, Mercury, Venus, Sun, Mars, Jupiter, and Saturn) was associated with one of the seven metals known to the classical world (silver, mercury/quicksilver, copper, gold, iron, tin and lead respectively). As a result, the alchemical glyphs for the metal and associated planet coincide. Alchemists believed the other elemental metals were variants of these seven (e.g. zinc was known as "Indian tin" or "mock silver"[16]).

Extract and symbol key from 17th century alchemy text.

Alchemy in the Western World and other locations where it was widely practiced was (and in many cases still is) allied and intertwined with traditional Babylonian-Greek style astrology; in numerous ways they were built to complement each other in the search for hidden knowledge (knowledge that is not common i.e. the occult). Astrology has used the concept of classical elements from antiquity up until the present day today. Most modern astrologers use the four classical elements extensively, and indeed they are still viewed as a critical part of interpreting the astrological chart.

A table of alchemical symbols from Basil Valentine’s The Last Will and Testament, 1670 ce.

Traditionally, each of the seven "planets" in the Solar System as known to the ancients was associated with, held dominion over, and "ruled" a certain metal (see also astrology and the classical elements).

The list of rulership is as follows:

Some alchemists (e.g. Paracelsus) adopted the Hermetic Qabalah assignment between the vital organs and the planets as follows:[16]

Planet Organ
Sun Heart
Moon Brain
Mercury Lungs
Venus Kidneys
Mars Gall bladder
Jupiter Liver
Saturn Spleen

التنجيم المعاصر

التنجيم الغربي

Astrology: the Thema Mundi shows the naked-eye planets in their domicile
مقال رئيسي: Planets in astrology
الكوكب Domicile sign(s) Detriment sign(s) Exaltation sign Fall sign Joy sign(s)
Sun Leo Aquarius Aries Libra Sagittarius
Moon Cancer Capricorn Taurus Scorpio Pisces, Libra
Mercury Gemini (diurnal) and Virgo (nocturnal) Sagittarius (diurnal) and Pisces (nocturnal) Virgo Pisces Aries, Scorpio, Capricorn and Aquarius
Venus Libra (diurnal) and Taurus (nocturnal) Aries (diurnal) and Scorpio (nocturnal) Pisces Virgo Gemini, Cancer and Aquarius
Mars Aries (diurnal) and Scorpio (nocturnal) Libra (diurnal) and Taurus (nocturnal) Capricorn Cancer Gemini, Leo, Virgo and Sagittarius
Jupiter Sagittarius (diurnal) and Pisces (nocturnal) Gemini (diurnal) and Virgo (nocturnal) Cancer Capricorn Taurus, Leo and Libra
Saturn Aquarius (diurnal) and Capricorn (nocturnal) Leo (diurnal) and Cancer (nocturnal) Libra Aries Gemini, Virgo and Scorpio


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علم الطالع الهندي

مقال رئيسي: Navagraha

Indian astronomy and astrology (jyotiṣa) recognises seven visible planets (including the Sun and Moon) and two additional invisible planets(tamo'graha).

Sanskrit Name Tamil name English Name Nakshatras Guna Represents Day
Surya (सूर्य) ஞாயிறு (ñāyiṟu) Sun Krittika, Uttara Phalguni and Uttara Ashadha Sattva Soul, king, highly placed persons, father, ego Sunday
Chandra (चंद्र) திங்கள் (tiṅkaḷ), மதி (mathi), நிலவு (nilavu) Moon Rohini, Hasta and Shravana Sattva Emotional Mind, queen, mother. Monday
Mangala (मंगल) செவ்வாய் (cevvāy), செம்மீன் (cem'mīṉ) Mars Mrigashira, Chitra and Dhanishta Tamas energy, action, confidence Tuesday
Budha (बुध) புதன் (putaṉ), அறிவன் (aṟivaṉ) Mercury Ashlesha, Jyeshta and Revati Rajas Communication and analysis, mind Wednesday
Brihaspati (बृहस्पति) வியாழன் (viyāḻaṉ), பொன்மீன் (poṉmīṉ) Jupiter Punarvasu, Vishakha and Purva Bhadrapada Sattva the great teacher, wealth, Expansion, progeny Thursday
Shukra (शुक्र) வெள்ளி (veḷḷi), வெண்மீன் (veṇmīṉ) Venus Bharani, Purva Phalguni and Purva Ashadha Rajas Feminine, pleasure and reproduction, Luxury, Love, Spouse Friday
Shani (शनि) சனி (saṉi), காரி (kāri), மைம்மீன் (maim'mīṉ) Saturn Pushya, Anuradha and Uttara Bhadrapada Tamas learning the hard way. Career and Longevity, Contraction Saturday
Rahu (राहु) கரும்பாம்பு (karumpāmpu) Ascending/North Lunar Node Ardra, Swati and Shatabhisha Tamas an Asura who does his best to plunge any area of one's life he controls into chaos, works on the subconscious level none
Ketu (केतु) செம்பாம்பு (cempāmpu) Descending/South Lunar Node Ashwini, Magha and Mula Tamas supernatural influences, works on the subconscious level none

الفلك الصيني

قالب:Off topic The cycles of the Chinese calendar are linked to the orbit of Jupiter, there being 12 sacred beasts in the Chinese dodecannualar geomantic and astrological cycle, and 12 years in the orbit of Jupiter.[بحاجة لمصدر]

English Name Associated element Chinese/Japanese/Korean Hanja Characters Chinese pinyin Japanese hiragana/romaji Korean Hangul (romaja) Vietnamese Old astronomical names[17]
Mercury water 水星 Shuǐxīng すいせい/Suisei 수성 (Suseong) Sao Thủy Chénxīng (辰星)
Venus metal/gold 金星 Jīnxīng きんせい/Kinsei 금성 (Geumseong) Sao Kim, also "Sao Mai" as "morning star" and "Sao Hôm" as "evening star" Tàibái (太白)
Mars fire 火星 Huǒxīng かせい/Kasei 화성 (Hwaseong) Sao Hỏa Yínghuò (熒惑)
Jupiter wood 木星 Mùxīng もくせい/Mokusei 목성 (Mokseong) Sao Mộc Suì (歲)
Saturn earth 土星 Tǔxīng どせい/Dosei 토성 (Toseong) Sao Thổ Zhènxīng (鎮星)

كواكب العين المجردة

قالب:Off topic Mercury and Venus are visible only in twilight hours because their orbits are interior to that of Earth. Venus is the third-brightest object in the sky and the most prominent planet. Mercury is more difficult to see due to its proximity to the Sun. Lengthy twilight and an extremely low angle at maximum elongations make optical filters necessary to see Mercury from extreme polar locations.[18] Mars is at its brightest when it is in opposition, which occurs approximately every twenty-five months. Jupiter and Saturn are the largest of the five planets, but are farther from the Sun, and therefore receive less sunlight. Nonetheless, Jupiter is often the next brightest object in the sky after Venus. Saturn's luminosity is often enhanced by its rings, which reflect light to varying degrees, depending on their inclination to the ecliptic; however, the rings themselves are not visible to the naked eye from the Earth. Uranus and sometimes the asteroid Vesta are in principle visible to the naked eye on very clear nights, but, unlike the true naked-eye planets, are less luminous than thousands of stars, and as such, do not stand out enough for their existence to be noticed without the aid of a telescope.

ملاحظات

  1. ^ Sumerian names for the planet Saturn are Kâawanu and (Akkadian) Sag-uš "firm, steadfast, phlegmatic".

انظر أيضاً

المراجع

  1. ^ Classification of the Planets
  2. ^ πλάνης, πλανήτης. Liddell, Henry George; Scott, Robert; A Greek–English Lexicon at the Perseus Project.
  3. ^ Goldstein, Bernard R. (2007), "What's New in Ptolemy's Almagest", Nuncius 22 (2): 271, doi:10.1163/221058707X00549 
  4. ^ Pedersen, Olaf (2011), A Survey of the Almagest, Sources and Studies in the History of Mathematics and Physical Sciences, New York / Dordrecht / Heidelberg / London: Springer Science + Business Media, ISBN 978-0-387-84825-9 
  5. ^ Mackenzie (1915). "13 Astrology and Astronomy". Myths of Babylonia and Assyria.
  6. ^ Pinches, Thophilus G. "5". The Religion of Babylonia and Assyria. Archived from the original on 17 ديسمبر 2007.
  7. ^ David N. Talbott (1980). The Saturn Myth. Garden City, New York, USA: Knopf Doubleday & Company, Inc. p. 419. ISBN 0-385-11376-5. Retrieved 2013-01-03.
  8. ^ Bhayro, Siam (2020-02-10). "Cosmology in Mandaean Texts". Hellenistic Astronomy. Brill. pp. 572–579. doi:10.1163/9789004400566_046. ISBN 9789004243361. S2CID 213438712. Retrieved 2021-09-03.
  9. ^ Neugebauer, Otto (1975). A history of ancient mathematical astronomy. pp. 788–789.
  10. ^ أ ب Neugebauer, Otto; Van Hoesen, H. B. (1987). Greek Horoscopes. pp. 1, 159, 163.
  11. ^ أ ب Jones, Alexander (1999). Astronomical papyri from Oxyrhynchus. pp. 62–63. It is now possible to trace the medieval symbols for at least four of the five planets to forms that occur in some of the latest papyrus horoscopes ([ P.Oxy. ] 4272, 4274, 4275 [...]). That for Jupiter is an obvious monogram derived from the initial letter of the Greek name. Saturn's has a similar derivation [...] but underwent simplification. The ideal form of Mars' symbol is uncertain, and perhaps not related to the later circle with an arrow through it. Mercury's is a stylized caduceus.
  12. ^ "Bianchini's planisphere". Florence, Italy: Istituto e Museo di Storia della Scienza (Institute and Museum of the History of Science). Retrieved 2010-03-17.
  13. ^ أ ب Maunder, A. S. D. (1934). "The origin of the symbols of the planets". The Observatory. 57: 238–247. Bibcode:1934Obs....57..238M.
  14. ^ Goldstein, Bernard R. (1967). "The Arabic version of Ptolemy's planetary hypothesis". Transactions of the American Philosophical Society. 57 (pt. 4): 6. doi:10.2307/1006040. JSTOR 1006040.
  15. ^ أ ب Vigfússon (1874:456).
  16. ^ أ ب Philip Ball, The Devil's Doctor: Paracelsus and the World of Renaissance Magic and Science, ISBN 978-0-09-945787-9
  17. ^ 中国古代的日月五星 Archived 2010-05-11 at the Wayback Machine
  18. ^ "Sky Publishing – Latitude Is Everything". Archived from the original on 2017-03-24. Retrieved 2007-07-14.

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