In astrology, an aspect is an angle a planet makes to another planet or point of astrological interest. As the second-brightest object in the night sky after the Moon, often prominent during the morning or evening, Venus has aspects that are readily apparent to the casual eye. They were of historical importance in the development of geocentric and ultimately heliocentric models of the Solar System.

Venus on 26 October 2015 at her greatest western elongation in the constellation Leo close to Jupiter and Mars. Magnitudes: Venus: -4,5 mag, Jupiter: -1,8 mag, Mars: +1,8 mag, Leo: +4,1 mag

Aspects of the planet Venus

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The table contains special positions of Venus until 2021. In general, Venus (or Mercury) is an "evening star" when it has an eastern elongation from the Sun, and is a "morning star" when it has a western elongation.[1][2]

Greatest eastern elongation Greatest brilliancy Stationary, then retrograde Inferior conjunction Stationary, then prograde Greatest brilliancy Greatest western elongation Superior conjunction
March 29, 2004 - 46° May 3, 2004 May 18, 2004 June 8, 2004 June 29, 2004 July 13, 2004 August 17, 2004 - 45.8° March 31, 2005
November 3, 2005 - 47.1° December 12, 2005 December 23, 2005 January 13, 2006 February 3, 2006 February 14, 2006 March 25, 2006 - 46.5° October 27, 2006
June 9, 2007 - 45.4° July 14, 2007 July 25, 2007 August 18, 2007 September 7, 2007 September 23, 2007 October 28, 2007 - 46.5° June 9, 2008
January 14, 2009 - 47.1° February 20, 2009 March 5, 2009 March 27, 2009 April 15, 2009 April 29, 2009 June 5, 2009 - 45.9° January 11, 2010
August 20, 2010 - 46° September 27, 2010 October 7, 2010 October 29, 2010 November 16, 2010 December 2, 2010 January 8, 2011 - 47° August 16, 2011
March 27, 2012 - 46° April 30, 2012 May 15, 2012 June 6, 2012 June 27, 2012 July 10, 2012 August 15, 2012 - 45.8° March 28, 2013
November 1, 2013 - 47.1° December 10, 2013 December 20, 2013 January 11, 2014 January 31, 2014 February 11, 2014 March 22, 2014 - 46.6° October 25, 2014
June 6, 2015 - 45.4° July 12, 2015 July 23, 2015 August 15, 2015 September 5, 2015 September 20, 2015 October 26, 2015 - 46.4° June 6, 2016
January 12, 2017 - 47.1° February 18, 2017 March 2, 2017 March 25, 2017 April 12, 2017 April 26, 2017 June 3, 2017 - 45.9° January 9, 2018
August 17, 2018 - 45.9° September 25, 2018 October 5, 2018 October 26, 2018 November 24, 2018 November 30, 2018 January 6, 2019 - 47° August 14, 2019
March 24, 2020 - 46.1° April 28, 2020 May 13, 2020 June 3, 2020 June 24, 2020 July 8, 2020 August 13, 2020 - 45.8° March 26, 2021

Note: Greatest brilliancy is often confused with "maximum brightness". Although they are related, they are not quite the same thing. The "greatest brilliancy" is really a geometric maximum: it occurs when the apparent area of the sunlit part of Venus is greatest. Only if the luminance of Venus' apparent surface would be constant (i.e. the same at every point and at every phase) would the "greatest brilliancy" of Venus coincide with its maximum brightness. However, the reflection of sunlight on Venus more closely follows Lambert's law, which means that the maximum brightness occurs at a somewhat larger phase of Venus than its greatest brilliancy.

See also

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References

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  1. ^ "What Is a 'Morning Star,' and What Is an 'Evening Star'?". Space.com. 2016-02-16.
  2. ^ McClure, Bruce (2017-04-29). "Venus at its brightest in morning sky". EarthSky.

Bibliography

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