Pi Arietis
Encyclopedia
Pi Arietis is a spectroscopic binary star system
in the constellation
Aries
. It is approximately 603 light years
from Earth
.
The pair is classified as a blue-white B-type
main sequence dwarf
with an apparent magnitude
of +5.26. At 3.2 arcseconds from the binary is a white A-type
main sequence star with an apparent magnitude of 8.8. At 25.2 arcseconds from A is a magnitude +10.9 yellow-white F-type
main sequence star.
, ζ Ari
, and ρ3 Ari, were Al Bīrūnī's Al Buṭain (ألبطين), the dual of Al Baṭn, the Belly.. According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, Al Buṭain were the title for five stars : δ Ari as Botein, π Ari as Al Buṭain I, ρ3 Ari as Al Buṭain II, ε Ari
as Al Buṭain III dan ζ Ari
as Al Buṭain IV
In Chinese
, , meaning Official in Charge of the Forest
, refers to an asterism consisting of π Arietis, ν Arietis
, μ Arietis
, ο Arietis
and σ Arietis
. Consequently, π Arietis itself is known as
Star system
A star system or stellar system is a small number of stars which orbit each other, bound by gravitational attraction. A large number of stars bound by gravitation is generally called a star cluster or galaxy, although, broadly speaking, they are also star systems.-Binary star systems:A stellar...
in the constellation
Constellation
In modern astronomy, a constellation is an internationally defined area of the celestial sphere. These areas are grouped around asterisms, patterns formed by prominent stars within apparent proximity to one another on Earth's night sky....
Aries
Aries (constellation)
Aries is one of the constellations of the zodiac, located between Pisces to the west and Taurus to the east. Its name is Latin for ram, and its symbol is , representing a ram's horns...
. It is approximately 603 light years
Light Years
Light Years is the seventh studio album by Australian recording artist Kylie Minogue. It was released on 25 September 2000 by Parlophone and Mushroom Records. The album's style was indicative of her return to "mainstream pop dance tunes"....
from Earth
Earth
Earth is the third planet from the Sun, and the densest and fifth-largest of the eight planets in the Solar System. It is also the largest of the Solar System's four terrestrial planets...
.
The pair is classified as a blue-white B-type
Stellar classification
In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are most prominent in the light, giving an objective measure...
main sequence dwarf
Main sequence
The main sequence is a continuous and distinctive band of stars that appears on plots of stellar color versus brightness. These color-magnitude plots are known as Hertzsprung–Russell diagrams after their co-developers, Ejnar Hertzsprung and Henry Norris Russell...
with an apparent magnitude
Apparent magnitude
The apparent magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere...
of +5.26. At 3.2 arcseconds from the binary is a white A-type
Stellar classification
In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are most prominent in the light, giving an objective measure...
main sequence star with an apparent magnitude of 8.8. At 25.2 arcseconds from A is a magnitude +10.9 yellow-white F-type
Stellar classification
In astronomy, stellar classification is a classification of stars based on their spectral characteristics. The spectral class of a star is a designated class of a star describing the ionization of its chromosphere, what atomic excitations are most prominent in the light, giving an objective measure...
main sequence star.
Name
This star, along with δ Ari, ε AriEpsilon Arietis
Epsilon Arietis is a double star in the constellation Aries. It is approximately 293 light years from Earth.The two components are both white A-type main sequence dwarfs with apparent magnitudes of 5.2 and 5.5 respectively. They are separated by 1.5 arcseconds on the sky...
, ζ Ari
Zeta Arietis
Zeta Arietis is a star in the constellation Aries.Zeta Arietis is a white A-type main sequence dwarf with an apparent magnitude of +4.87. It is approximately 340 light years from Earth.-Name:...
, and ρ3 Ari, were Al Bīrūnī's Al Buṭain (ألبطين), the dual of Al Baṭn, the Belly.. According to the catalogue of stars in the Technical Memorandum 33-507 - A Reduced Star Catalog Containing 537 Named Stars, Al Buṭain were the title for five stars : δ Ari as Botein, π Ari as Al Buṭain I, ρ3 Ari as Al Buṭain II, ε Ari
Epsilon Arietis
Epsilon Arietis is a double star in the constellation Aries. It is approximately 293 light years from Earth.The two components are both white A-type main sequence dwarfs with apparent magnitudes of 5.2 and 5.5 respectively. They are separated by 1.5 arcseconds on the sky...
as Al Buṭain III dan ζ Ari
Zeta Arietis
Zeta Arietis is a star in the constellation Aries.Zeta Arietis is a white A-type main sequence dwarf with an apparent magnitude of +4.87. It is approximately 340 light years from Earth.-Name:...
as Al Buṭain IV
In Chinese
Chinese language
The Chinese language is a language or language family consisting of varieties which are mutually intelligible to varying degrees. Originally the indigenous languages spoken by the Han Chinese in China, it forms one of the branches of Sino-Tibetan family of languages...
, , meaning Official in Charge of the Forest
Bond (Chinese constellation)
Leu sieu meaning "the Train of a garment", was one of the twenty-eight lunar mansions of the traditional Chinese astronomy. It was one of the White Tiger of the West （西方白虎）.- The asterisms in the Region of Leu （婁宿天區）:...
, refers to an asterism consisting of π Arietis, ν Arietis
Nu Arietis
Nu Arietis is a star in the constellation Aries.Nu Arietis is a white A-type main sequence dwarf with an apparent magnitude of +5.45. It is approximately 347 light years from Earth.-External links:***...
, μ Arietis
Mu Arietis
Mu Arietis is a star system in the constellation Aries. It is approximately 338 light years from Earth.It consists of a spectroscopic binary and a third component. The binary is classified as a white A-type main sequence dwarf with an apparent magnitude of +5.74. The two components are separated...
, ο Arietis
Omicron Arietis
Omicron Arietis is a star in the constellation Aries.Omicron Arietis is a blue-white B-type main sequence dwarf with an apparent magnitude of +5.78. It is approximately 482 light years from Earth.-References:* *...
and σ Arietis
Sigma Arietis
Sigma Arietis is a star in the constellation Aries.Sigma Arietis is a blue-white B-type main sequence dwarf with an apparent magnitude of +5.52. It is approximately 480 light years from Earth.-References:* *...
. Consequently, π Arietis itself is known as