36 Capricorni
36 Capricorni is a single, yellow-hued star in the southern constellation of Capricornus. It is visible to the naked eye with an apparent visual magnitude of +4.50. The distance to this star, as determined from an annual parallax shift of , is around 171 light years. It is currently moving closer with a heliocentric radial velocity of −21 km/s, and will come within in about 685,000 years ago. This is an evolved G-type giant star with a stellar classification of G7IIIb Fe–1, where the suffix notation indicates an underabundance of iron found in the spectrum. At the age of 770 million years it has become a red clump giant, meaning it is generating energy through helium fusion at its core. It has 2.26 times the mass of the Sun, but has expanded to 8.6 times its radius. It is radiating 43 times the Sun's luminosity from its photosphere at an effective temperature of 5,047 K. Chinese name In Chinese, (), meaning '' Twelve States'', refers ...
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Capricornus
Capricornus is one of the constellations of the zodiac. Its name is Latin for "horned goat" or "goat Horn (anatomy), horn" or "having horns like a goat's", and it is commonly represented in the form of a sea goat: a mythical creature that is half goat, half fish. Capricornus is one of the 88 modern constellations, and was also one of the 48 constellations listed by the 2nd century astronomer Ptolemy, Claudius Ptolemy. Its old astronomical symbol is (♑︎). Under its modern boundaries it is bordered by Aquila (constellation), Aquila, Sagittarius (constellation), Sagittarius, Microscopium, Piscis Austrinus, and Aquarius (constellation), Aquarius. The constellation is located in an area of sky called the Sea (astronomy), Sea or the Water, consisting of many water-related constellations such as Aquarius, Pisces (constellation), Pisces and Eridanus (constellation), Eridanus. It is the smallest constellation in the zodiac. Notable features Stars Capricornus is a faint ...
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Sun's Luminosity
The solar luminosity () is a unit of radiant flux ( power emitted in the form of photons) conventionally used by astronomers to measure the luminosity of stars, galaxies and other celestial objects in terms of the output of the Sun. One nominal solar luminosity is defined by the International Astronomical Union to be . This corresponds almost exactly to a bolometric absolute magnitude of +4.74. The Sun is a weakly variable star, and its actual luminosity therefore fluctuates. The major fluctuation is the eleven-year solar cycle (sunspot cycle) that causes a quasi-periodic variation of about ±0.1%. Other variations over the last 200–300 years are thought to be much smaller than this. Determination Solar luminosity is related to solar irradiance (the solar constant). Slow changes in the axial tilt of the planet and the shape of its orbit cause cyclical changes to the solar irradiance. The result is orbital forcing that causes the Milankovitch cycles, which determine Eart ...
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30 Capricorni
This is the list of notable stars in the constellation Capricornus, sorted by decreasing brightness. See also *List of stars by constellation References * * * * * * * {{Stars of Capricornus *List Capricornus Capricornus is one of the constellations of the zodiac. Its name is Latin for "horned goat" or "goat Horn (anatomy), horn" or "having horns like a goat's", and it is commonly represented in the form of a sea goat: a mythical creature that is hal ...

Theta Capricorni
Theta Capricorni, Latinized from θ Capricorni, is a binary star in the southern constellation of Capricornus, positioned 0.58° south of the ecliptic. Sometimes, this star is called by the name Dorsum, meaning ''the back (of the goat)'' in Latin. It can be seen with the naked eye, having an apparent visual magnitude of +4.07. Based upon an annual parallax shift of 20.11  mas as seen from the Earth, the star is about 162 light years from the Sun. It is drifting closer with a radial velocity of −11 km/s. Characteristics Radial velocity variations indicated it may be a binary star system, but when the system was examined in the infrared, no companion was detected. However, a companion was subsequently confirmed in 2023 by direct observations by an interferometer. The main component of this system is an A-type main sequence star with a stellar classification of A1 V. Theta Capricorni has an estimated 2.54 times the mass of the Sun and around 2.35 time ...
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Chi Capricorni
Chi Capricorni, Latinized from χ Capricorni, is a star in the southern constellation of Capricornus. Based upon an annual parallax shift of 18.14  mas as seen from the Earth, the star is located about 180 light years from the Sun. It is visible to the naked eye with an apparent visual magnitude of +5.28. Properties This is an A-type main sequence star with a stellar classification of A0 V. It is a candidate Lambda Boötis star, showing a chemically peculiar spectrum with a low abundance of most elements heavier than oxygen. The star is around 251 million years old and is spinning rapidly with a projected rotational velocity of 212 km/s. It has 2.78 times the mass of the Sun and is radiating 21 times the solar luminosity from its photosphere at an effective temperature of 10,878 K. At an angular separation of 1,199 arcseconds lies a faint proper motion companion designated HIP 99550. At the estimated distance of Chi Capricorni, t ...
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35 Capricorni
This is the list of notable stars in the constellation Capricornus, sorted by decreasing brightness. See also * List of stars by constellation References * * * * * * * {{Stars of Capricornus *List Capricornus Capricornus is one of the constellations of the zodiac. Its name is Latin for "horned goat" or "goat Horn (anatomy), horn" or "having horns like a goat's", and it is commonly represented in the form of a sea goat: a mythical creature that is hal ...

37 Capricorni
This is the list of notable stars in the constellation Capricornus, sorted by decreasing brightness. See also *List of stars by constellation References * * * * * * * {{Stars of Capricornus *List Capricornus Capricornus is one of the constellations of the zodiac. Its name is Latin for "horned goat" or "goat Horn (anatomy), horn" or "having horns like a goat's", and it is commonly represented in the form of a sea goat: a mythical creature that is hal ...

Iota Capricorni
Iota Capricorni (ι Cap, ι Capricorni) is a solitary, yellow-hued star in the southern constellation of Capricornus. It can be seen with the naked eye, having an apparent visual magnitude of +4.3. Based upon an annual parallax shift of 16.2  mas as seen from the Earth, the star is located about 201 light years from the Sun. At that distance, the visual magnitude of the star is diminished by an extinction factor of 0.08 due to interstellar dust. This is an evolved G-type giant star with a stellar classification of G8 III. It is classified as a BY Draconis type variable star. This is a chromospherically-active star with a longitudinal magnetic field strength of and an X-ray luminosity of . The activity and photometric variation of the star allow an estimate of its rotation period as 68 days. Iota Capricorni has an estimated 2.9 times the mass of the Sun and nearly 11 times the Solar radius. It is 390 million years old and is radiating 83 times ...
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Phi Capricorni
Phi Capricorni (φ Cap, φ Capricorni) is a solitary star in the southern constellation of Capricornus. It is visible to the naked eye with an apparent visual magnitude of +5.16. Based upon an annual parallax shift of 5.07  mas as seen from the Earth, the star is located about 640 light years from the Sun, give or take 30 light years. This is an evolved, orange-hued K-type giant/bright giant star with a stellar classification of K0 II-III It shows an infrared excess, which may be due to leftover material from a mass-loss event. The star has an estimated 2.63 times the mass of the Sun, and radiates 447 times the solar luminosity from its photosphere at an effective temperature of 4,490 K. Phi Capricorni is around 1.24 billion years old and is spinning with a projected rotational velocity of 3.8 km/s. Chinese Name In Chinese, (), meaning '' Twelve States'', refers to an asterism which is represent twelve ancient states in the Spring and Autumn p ...
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Warring States Period
The Warring States period in history of China, Chinese history (221 BC) comprises the final two and a half centuries of the Zhou dynasty (256 BC), which were characterized by frequent warfare, bureaucratic and military reforms, and struggles for greater hegemonic influence among the ancient Chinese states, various autonomous feudal states of the Eastern Zhou dynasty. It followed the Spring and Autumn period and concluded with the eventual unification of China by the western state of Qin (state), Qin under Qin Shi Huang, who Qin's wars of unification, conquered all other contender states by 221 BC and found the Qin dynasty, the first history of China#Imperial China, imperial dynasty in East Asian history. While scholars have identified several different dates as marking the beginning of the Warring States period, Sima Qian's choice of 475 BC, the first year of King Yuan of Zhou's reign, is the most often cited due to the paucity of preceding annals after th ...
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Spring And Autumn Period
The Spring and Autumn period () was a period in History of China, Chinese history corresponding roughly to the first half of the Eastern Zhou (256 BCE), characterized by the gradual erosion of royal power as local lords nominally subject to the Zhou exercised increasing political autonomy. The period's name derives from the ''Spring and Autumn Annals'', a chronicle of the state of Lu between 722 and 481 BCE, which tradition associates with Confucius (551–479 BCE). During this period, local polities negotiated their own alliances, waged wars against one another, up to defying the king's court in Luoyang, Luoyi. The gradual Partition of Jin, one of the most powerful states, is generally considered to mark the end of the Spring and Autumn period and the beginning of the Warring States period. The periodization dates to the late Western Han (). Background In 771 BCE, a Quanrong invasion in coalition with the states of Zeng (state), Zeng and Shen (state), Shen— ...
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Girl (Chinese Constellation)
The Girl mansion (女宿, pinyin: Nǚ Xiù) is one of the Twenty-eight mansions of the Chinese constellation Traditional Chinese astronomy has a system of dividing the celestial sphere into asterisms or constellations, known as "officials" ( Chinese ''xīng guān''). The Chinese asterisms are generally smaller than the constellations of Hellenisti ...s. It is one of the northern mansions of the Black Tortoise. Asterisms Notes {{Chinese constellation Chinese constellations ...
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