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Virgo
(
Latin
Virgo,
Astronomical symbol
♍), with an area of 1294.43 square degrees, accounting for 3.318% of the total area of the sky, ranking second in the area of 88 constellations
Hydra
And the biggest
Ecliptic sign
. There are 58 stars in Virgo brighter than magnitude 5.5,
lucida
for
althea
(Alpha Virgo star),
Apparent magnitude
It is 0.98. Every year at midnight on April 11, the center of Virgo passes through the upper meridian. Since modern times
Autumnal equinox
Located in the constellation Virgo.
[1]
- Chinese name
- Virgo
- Foreign name
- Virgo
- alias
- Virgo
- categorize
- Star sign
- Apparent magnitude
- 0.98
- Right ascension
- 13 h
- Latin abbreviation
- Vir
- Area product
- 1294.43 km²
- Area ranking
- 2nd place
- Bright star number
- 3
- lucida
- althea (α Vir)
- Meteor shower
- The Virgo meteor shower μ Virgo meteor shower
- Adjacent constellations
- Posterior occlusion , Leo , Colossus , Corvus , Hydra , Libra , Serpens , Bootes , Capricornus
- Optimum observation time
- May
- Best observed latitude
- Between +80° and −80°
- The apparent magnitude of the brightest star
- 0.98
- Fully visible region
- 67°N-75°S
- interzone
- 8.23 ~ 9.22
Virgo east connection
Serpens
(head) and
Libra
, lean to the west
Leo
,
Colossus
and
Corvus
, our south neighbor
Hydra
, our Northern neighbor
Bootes
and
Posterior occlusion
.
In addition to the ecliptic line passing through Virgo, the celestial equator also passes through the north-central part of Virgo, so that Virgo is simultaneously covered
Celestial equator
And the ecliptic line.
From the 18th century BC to the 4th century BC, the autumnal equinox was in Libra, after which it entered the constellation Virgo. This will enter the neighboring Leo around 2440.
Bayer nomenclature | Flamsteed nomenclature | Other names | Chinese star officer | Apparent magnitude | remark |
---|---|---|---|---|---|
Alpha Virgo | Virgo 67 | Spica | althea | 0.98 | The brightest star in Virgo;Beta Cephei variable star |
Beta Virgo | Virgo 5 | Zavijah [2] | Right hand enforcement | ---- | The sixth brightest star in the constellation Virgo |
Gamma Virgo | Virgo 29 | Porrima | Eastern facies | ---- | Binary star; The second brightest star in the constellation Virgo |
Virgo delta | Virgo 43 | Auva | Eastern phase | 3.39 Etc. | The fifth brightest star in the constellation Virgo |
Epsilon Virgo | 47 Virgo | Vindemiatrix | Dongji General | 2.85 level | The third brightest star in the constellation Virgo |
Zeta Virgo | Virgo 79 | Heze | Ceraseus | 3.38 etc. | The fourth brightest star in the constellation Virgo |
η Virgo | Virgo 15 | Zaniah | Left hand enforcement | 3.89 etc. | ---- |
Theta Virgo | 51 Virgo | ---- | Parallel road 1 | 4.38 Etc. | Cluster star |
Virgo ι | Virgo 99 | Syrma [2] | roselle | 4.07 etc. | ---- |
κb Virgo | Virgo 98 | Kang | Kangshuichi | 4.18 etc. | ---- |
Lambda Virgo | Virgo 100 | Khambalia | Erythrina | 4.52 | ---- |
μ Virgo | 107 Virgo | Rijl al Awwa | The overtones have always increased in number seven | Level 3.87 | ---- |
Virgo ν | Virgo 3 | ---- | Inner screen 2 | 4.04 etc. | ---- |
ξ Virgo | Virgo 2 | ---- | Inner screen 1 | 4.84 | ---- |
Virgo ο | Virgo 9 | ---- | Inner screen 4 | 4.12 Etc. | ---- |
PI Virgo | Virgo 8 | ---- | Inner screen 3 | 4.65 | ---- |
[3]
-
Cerueii (alpha Virgo)
althea
(Alpha Virgo) is a pair
Spectral type
It's B1V
[4]
Blue close binary star. Larger of these
Primary star
The mass is 11.43±1.15 times
Solar mass
The radius is 7.47±0.54 times
Solar radius
The luminosity is about 20,500 times
Solar luminosity
. The entire system is about 250 light years from Earth. Of Kakujuichi
Apparent magnitude
About 0.98 magnitude,
Absolute magnitude
With a magnitude of -3.55, they are among the top 20 brightest stars in the night sky.
[5]
-
Right hand law (beta Virgo)
Right hand enforcement
Beta Virgo is a star of spectral type F9 V with a mass of 1.25 solar masses, a radius of about 1.68 solar radii, and a luminosity of about 3.57 solar luminosity, located about 35.7 light-years from Earth with an apparent magnitude of about 3.6.
[6]
-
Eastern facies (gamma Virgo)
Eastern facies
(Virgo gamma) is a pair made up of two almost identical stars
Main sequence star
constituent
Binary star
The spectral type is F0V
[7]
Both are 1.56 times the mass of the Sun and have a total apparent magnitude of about 2.75.
-
Ross 128
Ross 128
Located near the right branch (beta Virgo), it is a faint star
Red dwarf
. It has one planet, Ross 128 b, orbiting it and is thought to be in
Goldilocks zone
Medium.
in
Dongji General
(ε Vir) 5° to 10° west
The Virgo Galaxy Cluster
, which includes
Messier catalog
Hit the mark
M49
(ellipse),
M58
(spiral),
M59
(ellipse),
M60
(ellipse),
M61
(spiral),
M84
(ellipse),
M86
(ellipse),
M87
(Ellipse; celebrated
Radio source
) and
M90
(Spiral).
M87
is
The Virgo Galaxy Cluster
The largest of
galaxy
It has an apparent magnitude of 8.6 and is 60 trillion light years from Earth.
redshift
0.0035). It is a large radio source, in part because of its electrons
Jet stream
Centered by the galaxy
Supermassive black hole
Out of the galaxy. Because this jet is visible at several different wavelengths, it is of great interest to astronomers hoping to observe black holes in a unique galaxy.
[8]
April 10, 2019, from"
Event horizon
Astronomers with the Event Horizon Telescope project have released images of its central black hole; This is the first direct image of a black hole with a mass of at least 7.2 billion times that of the Sun.
[9]
It is...
Milky Way galaxy
The most massive black hole in the neighborhood.
M84
It is also a notable object in the Virgo Cluster of galaxies, with an apparent magnitude of 9.1 and also 60 trillion light-years from Earth (redshift 0.0035). By calculating the mass and speed of the material orbiting its center, astronomers speculate that the center is also likely a black hole.
[8]
M104 is also known as
Straw hat galaxy
, in
Astronomy enthusiast
It is very famous because it looks like a straw hat and gets its name. It is a
Spiral galaxy
It has an apparent magnitude of 8.0 and is 28 million light-years away from Earth, with some brighter ones clustered in the center
Old star
And the bulge.
[8]
quasar
3C273, also an object in the constellation Virgo, is the first quasar to be discovered and, with an apparent magnitude of 12.9, is the optically brightest known quasar.
Virgo has several very small ones
Meteor shower
the
radiant
. among
Theta Virgo meteor shower
The maximum time is usually on March 20,
ZHR
About 1~3;
Gamma Virgo meteor shower
The maximum time is about April 14 or 15, and the ZHR is also less than 5.
[10]
In about The 10th century BC, a section of Virgo was called The Furrow, representing the goddess Shala and her
ear
.
althea
The Latin name for alpha Virgo is Spica, meaning ear of grain, which is
The Mesopotamian plains
The main crop.
[11]
The name of Virgo is handed down from ancient times, the Latin name Virgo, abbreviated as Vir, the symbol of Virgo meaning beauty.
The astronomical image of Virgo is a beautiful goddess with wings. It can be seen that its long existence and importance. Virgo is also an angel, bringing happiness and beauty to mankind.
Early Greek legends associate Virgo with
Valley God
Cerys
(Ceres) and the Goddess of fertility
Demeter
(Demeter) linked together. Be regarded as
The Twelve gods of Olympus
One of
Hera
. Earth mother
Gaea
To the holy garden
Golden apple
Gift, is ancient
Greek mythology
The queen of heaven,
Lord of the gods
The Queen of the gods, the highest goddess. Hera is considered to be the protector of marriage and women. Hera has the elegance and honor of a queen. Sitting on a golden throne, Hera is extremely beautiful.
Splendid clothes
Her arms were as white as lilies, and her gorgeous curls poured down from her crown. Hera rules marriage and childbirth, defends the family, and is very loyal to her love and family. Usually youth goddess
Hebe
Seen as the virgin of Hera, Hera herself represents the mother. There are also accounts of Iustitia, the goddess of Virgo and Virgo, or Astraya, the goddess of the stars and justice.
Astraea
The goddess Astraes is related to the goddess of purity, the goddess of justice, the goddess of stars, the goddess of purity, bringing light and hope, and its image is a young girl with wings, holding a torch, emitting bright light. The golden olive is the embodiment of the holy goddess Astria's love and compassion for human beings, and the possession of golden olives will have the noblest virtue. She brings light and hope to mankind. She holds in her hand a scale of justice, known as a Libra. Another Greek myth arose later
Classical period
Virgo was identified as Erigone, daughter of Icarius of Athens. In this version of the myth,
Dionysus
The father and daughter were placed on the stars to play the roles of the Fauves and the Virgo. Another figure thought to be associated with Virgo is the beautiful goddess of spring
Persephone
(
Persephone
She is the earthly goddess of grain management, the Greek mother of the earth, she is also the brilliant goddess of spring, white arms
Persephone
Beauty was a blonde, and Persephone was also a fertility goddess. She was
Zeus
And Demeter's only daughter,
Hardys
She had fallen in love with this beautiful goddess, and had taken her back to the underworld, and tricked her into eating six pomegranate seeds, so that she could not return to the earth for half the year, but lived in the underworld. She and Hades had three sons.
[12]
At the same time, she also brings spring back to the earth, everything comes back to life, and the earth returns to light.
Virgo is a symbol of beauty and purity.