Ophiuchus

Astronomical terminology, one of the zodiac constellations

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Ophiuchus （ Latin : Ophiuchus, astronomical symbol ⛎）， Zodiac One, with an area of 948 square meters, 88 in the whole day constellation Middle, ranking 11th in area. Seen from the Earth Hercules to the south of, scorpio and Sagittarius to the north of, the galaxy West side of the. Ophiuchus and Serpent It is the only pair of constellations connected together in the whole day. Meanwhile, Ophiuchus passes by Ecliptic , Across Celestial equator , and part of the Silverway This is unique among the 88 constellations in the whole day. Ophiuchus is large, wide and rectangular in shape, celestial equator It just slants through the rectangle. Although Ophiuchus spans the galaxy Very short, but Galaxy The center is not far from Ophiuchus Sagittarius Inside. The Milky Way has a prominent part here, forming the widest region of the Milky Way. The latitude variation is between+80 ° and − 80 °.

Chinese name: Ophiuchus
Foreign name: Ophiuchus
Alias: Ophiuchus
Classification: constellation
Right ascension: 17 h
Declination: 0°
Name of celestial body: Ophiuchus
Latin name: Ophiuchus
Latin abbreviation: Oph
Symbolism: Snake catcher, healer
Area: 948 km²

Area ranking: 11th
Number of bright stars: five
Brightest star: Hou ( Ophiuchus alpha )
meteor shower: Ophiuchus Meteor Shower 、 Ophiuchus θ meteor shower
Adjacency constellation: Hercules ， Giant snake head ， libra ， scorpio ， Sagittarius ， Giant snake tail ， Aquila
Best observation time: July
Optimum observation latitude: +Between 80 ° and − 80 °
Apparent magnitude of brightest star: two point one
Fully visible area: 59°N-75°S
Properties: All around

catalog

Star position

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Ophiuchus

Declination ：0°， Right ascension ：17 h。 Every year on November 29, the sun will pass through Ophiuchus until it enters Sagittarius on December 17. 1928 , Ophiuchus International Astronomical Union 13 in the International Astronomical Conference Zodiac One, ecliptic scorpio There is no solar term, but there is a solar term heavy snow In Ophiuchus.

Major constellations

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Bayer designation	Franstide nomenclature	Other names	Chinese Star Officer	Apparent magnitude	remarks
Ophiuchus alpha	Ophiuchus 55	Ras Alhague	Hou	2.07 etc	Ophiuchus brightest star
Ophiuchus beta	Ophiuchus 60	Cebalrai	Zong Zhengyi	2.76 etc	Ophiuchus, the fifth bright star
Ophiuchus gamma	Ophiuchus 62	Tsung Ching	Zong Zhenger II	3.75 etc	----
Ophiuchus δ	Ophiuchus 1	Yed Prior	Yed Prior	2.73 etc	Ophiuchus, the fourth bright star
Ophiuchus epsilon	Ophiuchus 2	Yed Posterior	Tianshi Youyuanshi	3.23 etc	----
Zeta Ophiuchus	Ophiuchus 13	Han	Zeta Ophiuchi	2.54 etc	Shell star ； Be Star ； Ophiuchus, the third bright star
Ophiuchus η	Ophiuchus 35	Sabik	Tianshi Zuoyuan No.11	2.43 etc	Ophiuchus second bright star
Ophiuchus θ	Ophiuchus 42	----	Tianjiangsan	3.27 etc	Cepheus beta variable
Ophiuchus	Ophiuchus 25	----	Dendrobium officinale	4.39 etc	----
Ophiuchus κ	Ophiuchus 27	----	Dendrobium	3.19 etc	----
Ophiuchus λ	Ophiuchus 10	Marfik	Column 42	3.82 etc	----
Ophiuchus μ	Ophiuchus 57	----	City Building I	4.58 etc	----
Ophiuchus ν	Ophiuchus 64	Yan	Tianshi Zuoyuanjiu	3.32 etc	There are 2 Brown dwarf
Ophiuchus ξ	Ophiuchus 40	----	Tianjiang Zengqi	4.39 etc	----
Ophiuchus o	Ophiuchus 39	----	Tianjiang Zengjiu	5.14 etc	----
Ophiuchus ρ	Ophiuchus 5	Heart stay increases nine	Rho Ophiuchi	4.57 etc	----
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(References in the table above:^{[3 ]} ）

The brightest star in Ophiuchus Ophiuchus alpha , is a white giant star (A5III) with apparent magnitude of 2.08, absolute magnitude of 0.96, and distance of 54 light-years. Ophiuchus beta is a red giant star (K2III) with apparent magnitude of 2.77, distance of 99 Light year ， Absolute magnitude Is - 0.1, etc. At 1 ° 5 in its northeast, there is a large but rare star Open cluster 。

Ophiuchus

Barnard star Seen from the earth, this star is located east of Ophiuchus. It was first discovered by American scientist Barnard in 1916. It is second only to Alpha It is 5.87 light years away from the sun. At the same time, it is the fastest moving star in the whole sky when viewed from the earth. Its self motion is 10.3 seconds a year, and it will move one lunar surface on the celestial sphere every 189 years. The direction of motion is toward the solar system, so in thousands of years, it will become the nearest star to the Earth, and there may be planets around it.

Ophiuchus 70（ Grandfather IV ）: This is a binary star. The time of one circle around each other is 88 years. The two sub stars are+4 and+6, respectively. The distance between them is 3.7 arc seconds, and the distance is expanding.

deep space

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Johannes Kepler Drawn by“ Kepler supernova ( Supernova 1604).

M9 : A globular cluster with loose structure, very small, and the brightest star is also about+14 magnitude. It requires a 10 inch (25 cm) telescope to see part of it, with a magnitude of+7.9.
M10 and M12 : The two globular clusters are 3.4 degrees apart and close to the center of Ophiuchus, and their structures are relatively loose light pollution They can be easily seen with a 4-inch (10 cm) telescope. Their magnitude is+6.6, M10 is 14000 light years away from the earth, M12 is 18000 light years from the earth.
M14 This is a globular cluster. With a small telescope, you can only see the faint outline. With a 10 inch (25 cm) telescope, you can distinguish the bright star. Its magnitude is+7.5.
M62 : This is a bright, round globular cluster, located in the compact sky of stars, with a magnitude of+6.6.
M107 : This is Messier object The darkest globular cluster with magnitude+8.1.
NGC6633 and IC4665 : This is large and loose that can be observed with binoculars cluster , using Binoculars The bright stars can be seen.

Ophiuchus

Constellation myth

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Ophiuchus astrogram

Holding a giant snake with both hands Asclepios (Asclepius) is the god of medicine, the son of Apollo and Coronis. When Colognes When she was killed by the golden bird, the snake man tried to revive her. Later, Hades (called Pluto by the Romans), the hot tempered king of the underworld, learned that he violated the law of heaven, and killed Asclepios with thunder.

Zeus Add him to the constellation, and thus Ophiuchus was born. Asclepios is more respected. In a temple built for him in Jepitaurus, there are always long lines of patients coming to the temple for help. Those patients come to the temple to provide for him and pray for him. Then when they fall asleep, Asclepios will appear in their dreams and tell them how to cure their diseases. Asclepios, who has become Ophiuchus, holds one in his hands snake Because Asclepios often snake venom Medication.

^[1-2]

Astrology

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Ophiuchus (Palace) is in Astrology The situation in is as follows:

one
Ophiuchus no Zodiac One, so Ophiuchus no Zodiac one of
two
Shefu Palace Thirteen Palaces of the Zodiac One of the 16, 16, and 24 palaces, Ophiuchus is the 13th, 16th 24 constellations One, the time range is Gregorian calendar annually November 8th to November 22nd , 15 days in total
three
48 star area I Double constellation One of Scorpio-Sagittarius Cusp be situated between scorpio (Astronomy scorpio ）And sagittarius (Astronomy Sagittarius ）, corresponding to the position of Ophiuchus, the time range is every year in the Gregorian calendar November 19th to November 24th , 6 days in total

Note: Astrology is generally accepted Pseudoscience , which endows Ophiuchus with time range and other attributes For entertainment only 。

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