"the 6th letter of the modern and classical Greek alphabet, denotes a value of seven (7) when used as a numeral. Examples: Zetta- Zetta is a decimal unit prefix in the metric system denoting a factor of 10 or . The prefix was added as an SI prefix to the International System of Units (SI) in 1991 and has the symbol Z. Zetta is evocative of the Latin numeral , meaning ""seven"". Therefore it was used to denote the seventh power of 1000. A prefix of the same value, ""hepta"", was informally introduced a few years before the promulgation of"
"from Earth) of a moving group of bright blue-white giant and supergiant stars, the Perseus OB2 Association or Zeta Persei Association. Zeta is a triple star system, with a companion blue-white main sequence star of spectral type B8 and apparent magnitude 9.16 around 3900 AU distant from the primary, and a white main sequence star of magnitude 9.90 and spectral type A2, some 50,000 AU away, that may or may not be gravitationally bound to the other two. X Persei is a double system in this association; one component is a hot, bright star and the other is a neutron"
"Phi Beta Sigma, Lambda Sigma Upsilon, Pi Alpha Phi, Phi Kappa Psi, Delta Tau Delta, Delta Sigma Pi, Alpha Sigma Phi, Kappa Delta Rho, Kappa Sigma, Sigma Alpha Epsilon, Alpha Gamma Rho, Lambda Chi Alpha, Sigma Pi, Sigma Phi Delta, Theta Chi, Kappa Alpha Order, Pi Kappa Phi, Zeta Beta Tau, Sigma Nu, Phi Gamma Delta, and Sigma Phi Epsilon. Active sororities include Delta Sigma Theta, Alpha Kappa Alpha, Zeta Phi Beta, Lambda Theta Alpha, Chi Upsilon Sigma, Lambda Pi Chi, Delta Phi Lambda, Phi Sigma Sigma, Alpha Delta Pi, Alpha Xi Delta, Gamma Phi Beta, Alpha Epsilon Phi, Chi"
"Theta Serpentis Theta Serpentis (θ Serpentis, abbreviated Theta Ser, θ Ser) is a triple star system in the constellation of Serpens. It consists of a binary pair designated Theta Serpentis AB and whose two components are designated Theta¹ Serpentis or Theta Serpentis A (and also named Alya) and Theta² Serpentis or Theta Serpentis B, together with a third visual companion Theta Serpentis C. Based upon parallax measurements obtained during the Hipparcos mission, θ Serpentis AB is approximately 160 light-years, and θ Serpentis C approximately 86 light-years, from the Sun. ""θ Serpentis"" (Latinised to ""Theta Serpentis"") is the system's Bayer designation;"
"star (4 components; component B is optical) Ptolemy saw the constellation's brightest star Gamma Sagittae as marking the arrow's head, while Bayer saw Gamma, Eta and Theta as depicting the arrow's shaft. Gamma Sagittae is a red giant of spectral type M0III, and magnitude 3.47. It lies at a distance of 258 ± 4 light-years from Earth. Eta Sagittae is a star of spectral class K2 III with a magnitude of 5.1, which belongs to the Hyades Stream. Theta Sagittae is a multiple star system. Delta and Zeta depicted the spike according to Bayer. Delta Sagittae is a suspected visual"
"used the Greek letters Alpha to Eta to label the most prominent eight stars in the constellation, designating two stars as Delta (named Delta and Delta). John Flamsteed numbered fourteen stars, discerning a third star he named Delta; his star 12 Canis Minoris was not found subsequently. In Bayer's 1603 work ""Uranometria"", Procyon is located on the dog's belly, and Gomeisa on its neck. Gamma, Epsilon and Eta Canis Minoris lie nearby, marking the dog's neck, crown and chest respectively. Although it has an apparent magnitude of 4.34, Gamma Canis Minoris is an orange K-type giant of spectral class K3-III"
"it ages, having spent much of its life as a main sequence star of spectrum B6V. Also known as 8 Canis Minoris, Delta is an F-type main-sequence star of spectral type F2V and magnitude 5.59 which is distant. The last of the trio, Delta (also known as 9 Canis Minoris), is a white main sequence star of spectral type A0Vnn and magnitude 5.83 which is distant. These stars mark the paws of the Lesser Dog's left hind leg, while magnitude 5.13 Zeta marks the right. A blue-white bright giant of spectral type B8II, Zeta lies around away from the Solar"
"of Psi Serpentis, a binary star located slightly further away at approximately 14 parsecs. Beta, Gamma, and Iota Serpentis form a distinctive triangular shape marking the head of the snake, with Kappa Serpentis (the proper name is Gudja) being roughly midway between Gamma and Iota. The brightest of the four with an apparent magnitude of roughly 3.67, Beta Serpentis is a white main-sequence star roughly 160 parsecs distant. It is likely that a nearby 10th-magnitude star is physically associated with Beta, although it is not certain. The Mira variable R Serpentis, situated between Beta and Gamma, is visible to the"
"a polygon of twelve segments (""illustrated in infobox""). In the equatorial coordinate system, the right ascension coordinates of these borders lie between and , while the declination coordinates are between 16.08° and 21.64°. Johann Bayer gave Bayer designations to eight stars, labelling them Alpha to Theta. What was viewed by Bayer, Friedrich Wilhelm Argelander and Heis as a single star Theta was in fact three stars, and is now equated to HR 7705. John Flamsteed added the letters x (mistaken as Chi), y and z to 13, 14 and 15 Sagittae in his Catalogus Britannicus. All three were dropped by"
"Music Educators' National Conference, Philosophy Club, Phi Beta Lambda (Business Club), Public Relations Student Society of America, Society for Law and Justice, Sociology Club, Students National Assoc. of Teachers of Singing, Tri-Beta (Biology HS) Alpha Chi, Alpha Kappa Delta, Alpha Phi Delta, Alpha Psi Omega, Aria De Capo, Delta Mu Delta, Iota Tau Zeta, Kappa Delta Pi, Kappa Lambda Iota, Lambda Pi Eta, Phi Alpha Theta, Phi Delta Psi, Phi Eta Sigma, Phi Alpha Sigma, Pi Delta Gamma, Phi Delta Phi, Pi Kappa Lambda, Pi Sigma Alpha, Psi Chi, Sigma Alpha Iota, Sigma Delta Pi, Sigma Tau Delta, Theta Delta"
"Theta, Sigma Lambda Gamma, Sigma Alpha Epsilon Pi, Alpha Kappa Delta Phi, Gamma Phi Beta, Kappa Kappa Gamma, Sigma Pi Alpha, Tri Chi, Sigma Omicron Pi, Kappa Zeta, Lambda Theta Alpha and Alpha Psi. The most recent Greek lettered organization added to the campus was Zeta Phi Beta sorority, which chartered its chapter Gamma Phi as of Spring 2016. Aside from social fraternities and sororities on campus, there are also a number of professional organizations as well. There are Kappa Gamma Delta, a prehealth sorority, Sigma Mu Delta, a prehealth fraternity, Alpha Phi Omega, a coed service fraternity, Phi Alpha"
"177 light-years from Earth. Its traditional name means ""the solitary one"". Beta Hydrae is a blue-white star of magnitude 4.3, 365 light-years from Earth. Gamma Hydrae is a yellow giant of magnitude 3.0, 132 light-years from Earth. Hydra has one bright binary star, Epsilon Hydrae, which is difficult to split in amateur telescopes; it has a period of 1000 years and is 135 light-years from Earth. The primary is a yellow star of magnitude 3.4 and the secondary is a blue star of magnitude 6.7. However, there are several dimmer double stars and binary stars in Hydra. 27 Hydrae is"
"3rd and the 6th; the Moon is the ""karaka"" of the 4th; Mercury is the ""karaka"" of the 4th and the 10th; Saturn is the ""karaka"" of the 6th, 8th, 10th and the 12th and Venus is the ""karaka"" of the 7th house from the lagna; these are the Bhava-karakas. The Yoga-karaka is the planet which rules a ""Kendra"" ('Angular house') and a ""Trikona"" ('Trine') simultaneously. Thus, Saturn is the ""yoga-karaka"" for Taurus and Libra, Mars for Cancer and Leo, Venus for Capricorn and Aquarius sign. The Sun, Mercury and Jupiter do not attain this status which the two Lunar"
"Zeta Serpentis Zeta Serpentis, Latinized from ζ Serpentis, is the Bayer designation for a single, yellow-white hued star in the equatorial constellation of Serpens. It is visible to the naked eye, having an apparent visual magnitude of 4.6. Based upon an annual parallax shift of 42.46 milliarcseconds as measured from the Hipparcos spacecraft, it is located 77 light years from the Sun. The star is moving closer to the Sun with a radial velocity of −50.7 km/s. It will make its closest approach in about 400,000 years when it makes perihelion passage at an estimated distance of . Around 2.4"
"name, Beta Leporis, called Nihal, is a yellow giant of magnitude 2.8, 159 light-years from Earth. Gamma Leporis is a double star divisible in binoculars. The primary is a yellow star of magnitude 3.6, 29 light-years from Earth. The secondary is an orange star of magnitude 6.2. Delta Leporis is a yellow giant of magnitude 3.8, 112 light-years from Earth. Epsilon Leporis is an orange giant of magnitude 3.2, 227 light-years from Earth. Kappa Leporis is a double star divisible in medium aperture amateur telescopes, 560 light-years from Earth. The primary is a blue-white star of magnitude 4.4 and the"
"Mu Herculis, Omicron Herculis, 112 Herculis, Zeta Aquilae, Eta Serpentis, Nu Ophiuchi, Xi Serpentis and Eta Ophiuchi. Consequently, Theta Serpentis itself is known as (, ), representing the state Xu (徐). Both Theta¹ Serpentis and Theta² Serpentis are white A-type main sequence dwarfs. θ¹ has an apparent magnitude of +4.62 while the slightly dimmer θ² has a magnitude of +4.98. These two stars are 22 arcseconds apart on the sky, putting them at least 900 AU apart with an orbital period of at least 14,000 years. Both stars are similar to each other in all respects, having luminosities of 18"
"Moon, Mercury, Venus, the Sun, Mars, Jupiter, and Saturn. Cicero, in his ""De Natura Deorum"", enumerated the planets known during the 1st century BCE using the names for them in use at the time: In 499 CE, the Indian astronomer Aryabhata propounded a planetary model that explicitly incorporated Earth's rotation about its axis, which he explains as the cause of what appears to be an apparent westward motion of the stars. He also believed that the orbits of planets are elliptical. Aryabhata's followers were particularly strong in South India, where his principles of the diurnal rotation of Earth, among others,"
"to Earth and merely happens to lie along the same line of sight. The five brightest member stars of the Hyades have consumed the hydrogen fuel at their cores and are now evolving into giant stars. Four of these stars, with Bayer designations Gamma, Delta 1, Epsilon, and Theta Tauri, form an asterism that is traditionally identified as the head of Taurus the Bull. The fifth of these stars is Theta Tauri, a tight naked-eye companion to the brighter Theta Tauri. Epsilon Tauri, known as ""Ain"" (the ""Bull's Eye""), has a gas giant exoplanet candidate, the first planet to be"
"4.05, nearby Iota Persei has been considered a member of the group, but is actually located a mere 34 light-years distant. This star is very similar to our Sun, shining with 2.2 times its luminosity. It is a yellow main sequence star of spectral type G0V. Extensive searches have failed to find evidence of it having a planetary system. Zeta Persei is the third-brightest star in the constellation at magnitude 2.86. Around 750 light-years from Earth, it is a blue-white supergiant 26–27 times the radius of the Sun and 47,000 times its luminosity. It is the brightest star (as seen"
"The Beta Chapter was installed at the University of Washington in 1929. The 1930s saw the installation of ten more chapters: Gamma & Delta in 1930, Epsilon in 1931, Zeta in 1932, Eta in 1933, Theta & Iota in 1935, Kappa in 1936, Lambda in 1937, and Nu in 1939. Phrateres now had chapters in seven states and one province in Canada (Theta at the University of British Columbia would remain the only Canadian chapter from 1935 to 1961). The 1940s brought four more chapters: Xi & Omicron in 1941, Rho in 1942, and Sigma in 1945, for a total"
"the ""Sadhaka nakshatra"", ""Vadha nakshatra"", the ""Mitra nakshatra"" and the ""Ati-mitra nakshatra"". The dasas and the antra-dasas of planets occupying the Sampata (2nd), the Sadhaka (6th), the Mitra (8th) and the Param-mitra (9th) confer wealth etc.; the 5th is called the Uttpanna, the 8th the Adhana and the 4th the Maha nakshatra. Planets ruling favourable nakshatras generally tend to give favourable results if they occupy a favourable nakshatra and the nakshatras they rule are not afflicted by planets that rule unfavourable nakshatras. Vaidyanatha Dikshita in his Jataka Parijata states that a planet will give better or exceptional results if it"
"stars. Phi and Psi Pegasi are pulsating red giants, while Tau Pegasi (the proper name is Salm), is a Delta Scuti variable—a class of short period (six hours at most) pulsating stars that have been used as standard candles and as subjects to study astroseismology. Rotating rapidly with a projected rotational velocity of 150 km s, Kerb is almost 30 times as luminous as the Sun and has a pulsation period of 56.5 minutes. With an outer atmosphere at an effective temperature of 7,762 K,it a white star with a spectral type of A5IV. Zeta, Xi, Rho and Sigma Pegasi"
"Sun. Making up the handle of the Little Dipper are Delta Ursae Minoris or Yidun and Epsilon Ursae Minoris. Just over 3.5 degrees from the north celestial pole, Delta is a white main-sequence star of spectral type A1V with an apparent magnitude of 4.35, located 172±1 light-years from Earth. Bearing the proper name of Yildun, it has around 2.8 times the diameter and 47 times the luminosity of the Sun. A triple star system, Epsilon Ursae Minoris shines with a combined average light of magnitude 4.22. A yellow giant of spectral type G5III, the primary is an RS Canum Venaticorum"
"- Alpha Delta Pi - Alpha Gamma Delta - Alpha Kappa Alpha - Alpha Omicron Pi - Alpha Xi Delta - Chi Omega - Delta Sigma Theta - Delta Zeta - Kappa Delta - Omega Phi Alpha - Phi Mu - Sigma Alpha - Sigma Gamma Rho - Sigma Kappa - Zeta Phi Beta Predating the national fraternities, there were local fraternities reaching back to the 1930s. The two leading men's social organizations were Phi Phi Kappa (also known as the Thirteeners), founded in 1939; and the Barons, founded the same year. When national Greek organizations were admitted to WKU,"
"internal procedures both in theory and in practice to eliminate sectarianism as a qualification for membership. The Zeta Beta Tau has merged with four other national Jewish fraternities: Phi Alpha, Kappa Nu, Phi Sigma Delta and Phi Epsilon Pi, with chapters and colonies at over 90 campus locations. In 1959, Phi Alpha merged into Phi Sigma Delta, and in 1961 Kappa Nu merged into Phi Epsilon Pi. In 1969-70, Phi Sigma Delta and Phi Epsilon Pi merged into Zeta Beta Tau. Zeta Beta Tau's official name is ""A Brotherhood of Kappa Nu, Phi Alpha, Phi Epsilon Pi, Phi Sigma Delta"
"Delta, Phi Kappa Tau, Pi Kappa Alpha, Sigma Alpha Epsilon, Sigma Chi, Sigma Nu, Sigma Pi, Sigma Phi Epsilon, Sigma Tau Gamma, Tau Kappa Epsilon, and Theta Chi. NPHC member organizations are historically black fraternities and sororities. As of the 2010 - 2011 school year, Alpha Phi Alpha, Alpha Kappa Alpha, Delta Sigma Theta, Iota Phi Theta, Kappa Alpha Psi, Omega Psi Phi, Phi Beta Sigma, and Zeta Phi Beta have chapters at OSU. The Multicultural Greek Council is the umbrella organization for additional minority Greek letter groups. Member organizations include Alpha Pi Omega, the nation's first Native American sorority;"
"Electra (star) Electra, also designated 17 Tauri, is a blue-white giant star in the constellation of Taurus. It is the third-brightest star in the Pleiades open star cluster (M45); the most visible stars in this group are named for the Seven Sisters of Greek mythology. The star has an apparent brightness of 3.72, the third-brightest of the stars in the group. Electra belongs to the spectral class B6 IIIe and is approximately 400 light-years from the Sun. The Pleiades cluster is thought to be 444 light-years away. The projected rotational velocity of this star is 181 km/s, making it a"
"and Alpha Leonis. The lion's tail is marked by Beta Leonis (Denebola) and the rest of his body is delineated by Delta Leonis and Theta Leonis. H.A. Rey has suggested an alternative way to connect the stars, which graphically shows a lion walking. The stars delta Leonis, gamma Leonis, eta Leonis, and theta Leonis form the body of the lion, with gamma Leonis being of the second magnitude and delta Leonis and theta Leonis being of the third magnitude. The stars gamma Leonis, zeta Leonis, mu Leonis, epsilon Leonis, and eta Leonis form the lion's neck, with epsilon Leonis being"
"of the third magnitude. The stars mu Leonis, kappa Leonis, lambda Leonis, and epsilon Leonis form the head of the lion. Delta Leonis and beta Leonis form the lion's tail: beta Leonis, also known as Denebola, is the bright tip of the tail with a magnitude of two. The stars theta Leonis, iota Leonis, and sigma Leonis form the left hind leg of the lion, with sigma Leonis being the foot. The stars theta Leonis and rho Leonis form the right hind leg, with rho Leonis being the foot. The stars eta Leonis and Alpha Leonis mark the lion's heart,"
"lies within, and can be located by, forming a triangle of the bright stars Achernar, Fomalhaut and Beta Ceti—Ankaa lies roughly in the centre of this. A curved line of stars comprising Alpha, Kappa, Mu, Beta, Nu and Gamma Phoenicis was seen as a boat by the ancient Arabs. French explorer and astronomer Nicolas Louis de Lacaille charted and designated 27 stars with the Bayer designations Alpha through to Omega in 1756. Of these, he labelled two stars close together Lambda, and assigned Omicron, Psi and Omega to three stars, which subsequent astronomers such as Benjamin Gould felt were too"
"the five classes or castes named after letters of the Greek alphabet: alpha, beta, gamma, delta, and epsilon, respectively. Society is controlled by Alphas and their subordinates, Betas. Below them, in descending order of intellectual and physical capacity, are Gammas, Deltas, and Epsilons. Each caste is further subdivided into Plus and Minus (with Epsilons having the additional classifications of regular or semi-moron), and are distinguished by colour-coded work clothes. Epsilons are dressed in black, Deltas in khaki, Gammas in leaf green, Betas in mulberry, and Alphas in grey. At the very pinnacle of society sit Alpha Double-Plus, who serve as"
"94.9 and 101.7 days. Delta is an orange giant star of spectral type K3III, located 550 ± 10 light years away, with a magnitude of 5.3. The separate components can be resolved with the naked eye. The fifth-brightest star is Zeta Apodis at magnitude 4.8, a star that has swollen and cooled to become an orange giant of spectral type K1III, with a surface temperature of 4649 K and a luminosity 133 times that of the Sun. It is 300 ± 4 light-years distant. Near Zeta is Iota Apodis, a binary star system 1,040 ± 60 light-years distant, that is"
"and 13 times solar respectively, radii of about twice solar and also masses of roughly 2 times that of the Sun. Both stars have a surface temperature of 8,000 kelvins. Theta Serpentis C is a yellow G-type star with an apparent magnitude of +6.71. It is separated by 7 arcminutes from θ². Theta Serpentis Theta Serpentis (θ Serpentis, abbreviated Theta Ser, θ Ser) is a triple star system in the constellation of Serpens. It consists of a binary pair designated Theta Serpentis AB and whose two components are designated Theta¹ Serpentis or Theta Serpentis A (and also named Alya) and"