Sign[1] Constellation
Name Symbol Tropical zodiac
(2011)
Sidereal zodiac
(2011)
Name IAU boundaries[2] Solar stay[2] Brightest star
Aries Aries 21 March –
20 April
15 April -
15 May
Aries 19 April – 13 May 25 days Hamal
Taurus Taurus 21 April –
21 May
16 May -
15 June
Taurus 14 May – 19 June 37 days Aldebaran
Gemini Gemini 22 May –
21 June
16 June -
15 July
Gemini 20 June – 20 July 31 days Pollux
Cancer Cancer 22 June –
22 July
16 July -
15 August
Cancer 21 July – 9 August 20 days Al Tarf
Leo Leo 23 July –
22 August
16 August -
15 September
Leo 10 August – 15 September 37 days Regulus
Virgo Virgo 23 August –
23 September
16 September -
15 October
Virgo 16 September – 30 October 45 days Spica
Libra Libra 24 September –
23 October
16 October -
15 November
Libra 31 October – 22 November 23 days Zubeneschamali
Scorpio Scorpio 24 October –
22 November
16 November -
15 December
Scorpius 23 November – 29 November 7 days Antares
n/a
Ophiuchus 30 November – 17 December 18 days Rasalhague
Sagittarius Sagittarius 23 November –
21 December
16 December -
14 January
Sagittarius 18 December – 18 January 32 days Kaus Australis
Capricorn Capricornus 22 December –
20 January
15 January –
14 February
Capricornus 19 January – 15 February 28 days Deneb Algedi
Aquarius Aquarius 21 January –
19 February
15 February -
14 March
Aquarius 16 February – 11 March 24 days Sadalsuud
Pisces Pisces 20 February –
20 March
15 March -
14 April
Pisces 12 March – 18 April 38 days Eta Piscium
  1. ^ Jackson Swift (2011-05-31). "Astrology: Tropical Zodiac and Sidereal Zodiac". goarticles.com. Retrieved 2012-02-22.
  2. ^ a b Constellations in the zodiac. Dr. Lee T. Shapiro, director of Morehead Planetarium University of North Carolina (2011 April 27)