Its absolute magnitude is -3.55 and its distance is 262 light years. The Chinese name for the star is 角宿一 (Jiǎo Xiù yī), meaning the First Star of Horn.
Future US, Inc. 11 West 42nd Street, 15th Floor, Several temples in Greece were also found that were constructed relative to Spica’s motion across the sky, including two temples at Rhamnus from 1092 and 747 BCE, temples to Hera at Olympia, Argos and Girgenti, and the temple of Nike Apteros at Athens (1130 BCE). The two stars orbit each other at just 12 percent the equivalent distance between Earth and the sun. 0.97), Porrima (Gamma Vir, mag. Red-band image from the Second Digitized Sky Survey (DSS2), measuring 30 arcminutes across. A steamy cover-up on the red planet -- New evidence for active volcanism on Mars. There was a problem.
The spectrum shows a radial velocity variation with the same period, indicating that the surface of the star is regularly pulsating outward and then contracting. Please refresh the page and try again. Plate tectonics on Mars? Los Angeles (34.05°N; 118.24°W), Hipparcos, the new Reduction of the Raw data (van Leeuwen 2007), Dominic Spica is a little hard to spot, so astronomers sometimes use other stars to find it.
With an effective temperature of about 25,300 K, it is 20,512 times more luminous than the Sun, but a lot of its energy output is in the invisible ultraviolet. Mars mapping begins in earnest -- MGS achieves its final orbit. Its brightest members are visible in small telescopes. Spica is one of the 58 bright stars selected for navigation. Website designed by And if you have a news tip, correction or comment, let us know at: email@example.com. Ford 2011–2020. In medieval astrology, Spica was one of the 15 Behenian fixed stars, believed to be a source of special astrological power.
And following the star Spica 10 interesting facts: 1.Spica is 250 light years from Earth in the Virgo constellation. After comparing his measurements with those given by Timocharis and Aristillus (3rd century BCE), Hipparchus found that Spica had moved two degrees relative to the autumnal equinox (the instant when the plane of the Earth’s equator aligns with the path of the Sun and the Sun can be seen directly above the equator). The star is a fast spinner, with a projected rotational velocity of 165.3 km/s. The total luminosity of this star is about 12,100 times that of the Sun, and eight times the luminosity of its companion.
This week's sky at a glance -- from Sky & Telescope, Mars & Spica in 1998 -- from EarthSky.com, Spica -- facts and figures from the University of Wisconsin, The Planet Mars - from the SEDS Nine Planets web site, Life on Mars - A review of evidence of signs of life in the Allen Hills meteorite, Related Stories:
The two stars were the first to have their geometric albedo (reflectivity) measured. The rotation rates of both stars are faster than their mutual orbital period. 3.89), and Nu Virginis (mag. 3.604), 109 Virginis (mag. Mars unveils a magnetic personality -- Plate tectonics on the Red Planet might have important consequences for ancient Martian life. Alpha (α) Virgo, Spica, is a binary, brilliant flushed white star marking the Ear of Wheat shown in the Virgin's left hand. Member galaxies include Virgo A (Messier 87), a supergiant elliptical galaxy whose supermassive black hole was the first to be directly imaged, the bright elliptical galaxy Messier 49, the barred spiral galaxies Messier 58, Messier 61 and NGC 4639, and the interacting pairs NGC 4435 and NGC 4438, also known as the Eyes Galaxies, and NGC 4567 and NGC 4568, nicknamed the Siamese Twins. For more information including contact details, The asterism occupied about a third of the sky. >^..^. Last updated: 19 Oct 2020, 18:15 UTC The centre of the cluster is found within the Spring Triangle, about halfway between Denebola in Leo and Vindemiatrix in Virgo. Following the arc of the handle leads first to the bright Arcturus in the constellation Boötes and then to Spica. here.
The 10 brightest stars in Virgo are Spica (Alpha Vir, mag. Spica is really a close binary star system. But this week is different. Spica (Star) Color-magnitude diagram. New York,
Apr 29, 1999 NASA NASA Science News Timezone: 48.85°N . Receive news and offers from our other brands? This star is smaller than the primary, with about 7 times the mass of the Sun and 3.6 times the Sun's radius. For more information including contact details, Over time, the mutual tidal interaction of the pair may lead to rotational synchronization and orbit circularization. Mar. Another 2001 paper noted that the system is "one of a handful to display the Struve-Sahade effect", referring to changes in the spectral lines in the smaller star. The image above shows the uncropped view of Spica (North is up) through the Takahashi E-180 Astrograph. Acamar Achernar Acrux Adhara Albireo Alcor Alcyone Aldebaran Alderamin Algenib Algol Alhena Alioth Alkaid Almach Alnair Alnilam Alnitak Alpha Centauri Alphard Alphecca Alpheratz Altair Aludra Ankaa Anser Antares Arcturus Ascella Asterope Atlas Atria Avior Baten Kaitos Bellatrix Betelgeuse Bharani Canopus Capella Caph Castor Celaeno Deneb Denebola Diphda Dubhe Electra Elnath Eltanin Enif Fomalhaut Gacrux Gamma Cassiopeiae Ginan Hadar Hamal Imai Izar Kaus Australis Kaus Borealis Kaus Media Maia Marfik Markab Megrez Meissa Menkalinan Menkar Menkent Merak Merope Mesarthim Miaplacidus Mimosa Mintaka Mira Mirach Mirfak Mirzam Mizar Mu Cephei Naos Nunki Peacock Phecda Pleione Polaris Pollux Procyon Proxima Centauri Rasalhague Regulus Rho Ophiuchi Rigel Rigil Kentaurus Ruchbah Sabik Sadr Saiph Sargas Scheat Schedar Segin Seginus Shaula Sheratan Sirius Spica Stephenson 2-18 Suhail Taygeta Thuban Toliman Unukalhai UY Scuti Vega VV Cephei VX Sagittarii Wezen WOH G64 Zeta Reticuli Zubenelgenubi Zubeneschamali, Spica, Alpha Virginis, α Vir, 67 Virginis, HD 116658, HR 5056, HIP 65474, SAO 157923, FK5 498, GCTP 18144, GC 18144, GCRV 7963, BD-10°3672, CCDM 13252-1109, EUVE J1325-11.1, IRAS 13225-1054, 2MASS J13251158-1109404, PPM 227262, TYC 5547-1518-1. With an apparent magnitude of 0.97, it is the brightest star in Virgo and the 16th brightest star in the sky.
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