•    
    Posições actuais dos planetas
    20-Fev-2017, 16:31 UT/GMT
    Sol213'35"10s41
    Lua2239'45"18s15
    Mercúrio2056'43"16s29
    Vênus1035' 5"8n44
    Marte1722'25"6n44
    Júpiter2248'51"r7s29
    Saturno2612' 0"22s05
    Urano2143'48"7n56
    Netuno1121' 2"8s05
    Plutão1834' 3"21s13
    Nodo Lun.true323'24"r10n16
    Quíron2322'26"0n52
    Explanations of the symbols
    Mapa do momento
| Meu Astro | Forum | FAQ

Frequently asked questions

Understanding Astrology > Precession

  1. Is Aries Pisces? Or what about the precession of the equinox?

    The signs of the tropical zodiac, which starts at the Vernal Equinox with 0° Aries, are not the same as the fixed star constellations which carry the same names.
    The signs are sections of the ecliptic circle, 30 degrees each. They serve as an abbreviated measurement system for ecliptic longitude relative to the true equinox of date. Instead of saying 'Saturn is at 123 degrees' we say 'Saturn is at 3 degrees of the 5th zodiac section'. Because the 5th zodiac section is named 'Leo', we say Saturn is at 3 Leo. We mean ecliptic longitude relative to the Equinox, so this is NOT the fixed star constellation Leo.
    The fixed star constellations are irregular patches of stars on the sky. 2000 years ago those areas coincided roughly with the zodiac sections, and that is where they got their names from. The fixed star constellations are not used for measuring coordinates of objects on the sky.
    Due to the effect of lunisolar precession, the ecliptic circle has since shifted versus the fixed star background, and continues to shift by 1° every 72 years.
    Astronomers, who often hate astrology, love to confuse people by pretending of not being aware of the difference between fixed star constellations and the reference frame of the tropical ecliptic coordinate system. In fact, astronomy uses the very same ecliptic coordinate system as astrology does. Also astronomers give the position of objects in the ecliptic by measuring the longitude from the Equinox. Some astronomers try to make astrologers look stupid, when in fact all they manage is confusion of the "innocent public".
    For further information, please read Precession and Zodiac or the full documentation of Swiss Ephemeris.

  2. Do astrologers use the sidereal zodiac as well?

    In Indian (Hindu / Vedic) astrology, the sidereal zodiac is used. The precession of the equinox is not taken into account there. Western astrology only refers to the sidereal zodiac in connection with the world ages, like the Age of Aquarius or the Age of Pisces.

 

Por ser um dos maiores portais de astrologia, a WWW.ASTRO.COM dispõe de vários recursos gratuitos sobre o tema. Com interpretações astrológicas de alta qualidade feitas por alguns dos maiores astrólogos do mundo, como Liz Greene e Robert Hand entre outros, muitos horóscopos gratuitos e uma infinidade de informações sobre astrologia para iniciantes e profissionais, a www.astro.com é o endereço número um em astrologia online.
Homepage - Horóscopos Gratuitos - Astro Loja - Compreender a Astrologia - Ephemeris - Autors und Staff - Meu Astro - Consulta Directa ao Atlas - Sitemap - FAQ - Forum - Contato