alphard constellation

alphard constellation插图

Hydra

Is Alphard a giant star?

Alphard has evolved away from the main sequence and became a giant star with a spectral classification of K3 II-III – it’s luminosity class being in between II and III, appearing orange in color. The angular diameter of Alphard is only beaten by stars such as Betelgeuse or R Doradus.

What is the location of the central star in Alphard?

For Alphard, the location is 09h 27m 35.25 and -08 39` 31.3 . All stars like planets orbit round a central spot, in the case of planets, its the central star such as the Sun.

Why is Alphard called the heart of the Snake?

This is because Alphard is the only bright star in the empty-looking region below Leo constellation. It has also been called Cor Hydrae. the heart of the snake. Fixed star Alphard has a planetary nature of Saturn and Venus (slovenly, very immoral, shameless, revolting, mean, sorrows in love.)

What is the location of the declination of Alphard?

The Declination is how far north or south the object is compared to the celestial equator and is expressed in degrees. For Alphard, the location is 09h 27m 35.25 and -08 39` 31.3 . All stars like planets orbit round a central spot, in the case of planets, its the central star such as the Sun. In the case of a star, its the galactic centre.

Did you know?

Alphard is among the 58 stars bright stars used for navigation. It is the only navigational star in Hydra.

How did Alphard form?

Alphard formed around 420 million years ago from an interstellar medium of dust and gas. Gravity pulled the swirling gas and dust together and when the right temperature was reached, the brightest star in Hydra, Alphard, was born.

What is the brightest star in the constellation of Hydra?

Alphard, designated as Alpha Hydrae, is the brightest star in the constellation of Hydra. Alphard is a giant star, cooler than our Sun yet larger and more luminous.

How much of the Sun’s mass is in Alphard?

In regards to its mass, Alphard has around 3.03 solar masses or 303% of the Sun’s mass.

Which constellation has two stars?

Though it is the largest constellation, Hydra is not particularly prominent, with only two stars, Alphard and the yellow giant Gamma Hydrae being brighter than magnitude 3.

What type of star is Alphard?

Alphard / Alpha Hydrae, is an orange star of spectral type K3 II-III, indicating a giant (III) or bright giant (II) star. Alphard is around 780 times brighter than our Sun, yet it is much cooler having surface average temperatures of around 4,120 K, or only 70% of the Sun’s heat.

How much is the radius of the Alphard?

Alphard’s radius has been estimated at around 50.5 solar radii or 5050% times the Sun’ s radius.

What does the Alphard symbol represent?

Alphard is one of the stars featured on the flag of Brazil. Each star represents a Brazilian Federative Unit and Alphard symbolizes the state of Mato Grosso do Sul. In ancient China, Alphard was part of an asterism known as the “red bird.”. The Toyota Alphard, a minivan produced by Toyota, was named after the star.

What is the only star in Hydra?

Alphard is one of the 58 bright stars selected for navigation. It is the only navigational star in Hydra. Navigational stars are some of the brightest and most recognizable stars in the sky. They span the celestial sphere from the declination -70° to +89° and have a special status in the field of celestial navigation because they are very easy …

What is the name of the orange star in the constellation Hydra?

2021-04-06. Alphard, Alpha Hydrae (α Hya) is an orange giant or bright giant star located in the constellation Hydra. With an apparent magnitude of 2.00, it is the brightest star in the constellation and marks the heart of the celestial Water Snake. It lies at a distance of 177 light years from Earth.

Which is more luminous, Alphard or Pollux?

Even though it appears considerably fainter than fellow class K giants Arcturus, Pollux and Aldebaran, Alphard is in fact more intrinsically luminous. It only appears fainter because it lies at a much greater distance. It is located 177 light years away and shines with 780 solar luminosities, while the other stars are closer to us, Arcturus (170 L ☉) at 36.7 light years, Pollux (32.7 L ☉) at 33.78 light years, and Aldebaran (439 L ☉) at 65.3 light years.

What is the largest apparent diameter?

Alphard has one of the largest apparent diameters measured, 9.09 ± 0.09 milliarcseconds (0.00909 arcseconds). It is smaller than the apparent diameters of R Doradus (0.052’’ – 0.062’’) and Betelgeuse (0.049’’ – 0.060’’), but larger than those of our neighbours Alpha Centauri A (0.007’’), Sirius (0.005936″) and Altair (0.003’’), as well as those of Canopus (0.006’’), Deneb (0.002’’), and Alnitak (0.0005″).

What is the period of the Alphard oscillation?

The oscillations had periods from several hours to a few days and are believed to be a result of stellar pulsations. The study also found a correlation between the oscillation in the asymmetry of Alphard’s spectral line profile and the star’s radial velocity.

What is the star type Alphard?

Star type. Alphard has the stellar classification K3 II-III, indicating a giant (III) or bright giant (II) appearing orange in colour. The star has a mass 3.03 times that of the Sun and has expanded to a size of 50.5 solar radii. With an effective temperature of 4,120 K, it is about 780 times more luminous than the Sun.

What is the brightest star in the constellation Hydra?

Alphard (Alpha Hydrae) is the brightest star in the constellation Hydra the Water Snake, which is the longest of all 88 constellations. Despite its long trail of stars, Hydra’s stars are mostly dim except for Alphard. As a 2nd-magnitude star, Alphard shines on a par with the stars of the Big Dipper. Known as the Heart of the Snake, Alphard is a precursor of spring.

What does the color of the star Alphard mean?

Look at Alphard with binoculars to discern its orange color. Alphard’s color shows that it is entering into the autumn of its years, like the color of the orange stars Pollux and Arcturus, and the ruddy star Aldebaran. Old stars’ colors are reminiscent of the orange color of autumn leaves. Like Pollux, Arcturus and Aldebaran, Alphard will shed its outer layers someday soon (by astronomical standards) and shrink into a dead white dwarf star.

What is the name of the water snake with the heart?

Hydra the Water Snake, with Alphard at its heart.

What is the color of the alphard?

Alphard’s warm orange color and location near the head of Hydra makes it a good representative for the snake’s heart. It’s sometimes called Cor Hydrae or Hydra’s Heart. There is something about Alphard – some combination of its orange color and not-too-showy brightness – that looks friendly.

What constellation has a question mark?

Do you know the constellation Leo the Lion and its famous asterism shaped like a backward question mark? If so – on an evening in March, April or May – look for the distinctive backward question mark shape of its head and the triangle body. Then, from Northern Hemisphere locations, look southward to Leo’s lower right to find Alphard. You’ll find Alphard not far from Regulus, Leo’s brightest star. Alphard is not as bright as Regulus, but it’s a distinctive orange color. Both Alphard and Regulus are known as the “heart” of their respective animal constellations.

Which is brighter, Pollux or Aldebaran?

Yet it appears fainter, because it lies some 180 light-years away, while Pollux, Arcturus and Aldebaran reside at 34, 37, and 65 light-years, respectively.

When does Alphard rise?

Alphard is located in the upper part of the Water Snake, and it has risen when darkness falls by the time of the March equinox.

What does ascendant conjunct mean?

Ascendant conjunct Alphard: Much trouble, anxiety, and loss in connection with estates and building; addicted to women and intemperance. Good-tempered, healthy, gain by industry and marriage. [1]

What does Jupiter conjunct mean?

Jupiter conjunct Alphard: Strong passions, favorable for gain, attachment to widow or widower, liable to disgrace, legal trouble and judicial sentence. [1]

What is the name of the orange star in the water snake?

Fixed star Alphard, Alpha Hydrae, is a 2.0 magnitude orange star in the neck of the Water Snake, Hydra constellation. The traditional name Alphard is from Al Fard Al Shujah, Arabic for the solitary one in the snake. This is because Alphard is the only bright star in the empty-looking region below Leo constellation.

What is Venus conjunct?

Venus conjunct Alphard: Passionate attachments that are opposed by relatives, handsome and admired by opposite sex, favorable for gain, sorrow through love affairs if female. [1] This position is almost masochistic but very creative. These natives have many creative talents and can create any art form they wish.

Which star has a planetary nature?

Fixed star Alphard has a planetary nature of Saturn and Venus (slovenly, very immoral, shameless, revolting, mean, sorrows in love.) It gives wisdom, musical and artistic appreciation, knowledge of human nature, strong passions, lack of self-control, immorality, revolting deeds, and sudden death by drowning, poison or asphyxiation. [1]

What is the star of the water serpent Hydra?

Alphard, the main star of the Water Serpent Hydra, in Arabic El-Ferd, “the one who stands alone”, is of a Saturn nature. However, there is a measure of influence of Venus and Neptune. This combination is of a disadvantage in most cases.

Which star rules the bottom of the heart?

Fixed star Alphard rules the bottom of the heart in the human body. [4]

How far is Alphard from Earth?

Using the original Hipparcos data that was released in 1997, the parallax to the star was given as 18.40000 which gave the calculated distance to Alphard as 177.26 light years away from Earth or 54.35 parsecs. If you want that in miles, it is about 1,042,045,133,650,526.71, based on 1 Ly = 5,878,625,373,183.61 miles.

How big is the alphard star?

Alphard estimated radius has been calculated as being 40.44 times bigger than the Sun. The Sun’s radius is 695,800km, therefore the star’s radius is an estimated 28,139,795.21.km. If you need the diameter of the star, you just need to multiple the radius by 2. However with the 2007 release of updated Hipparcos files, the radius is now calculated at being round 41.00. The figure is derived at by using the formula from SDSS rather than peer reviewed papers. It has been known to produce widely incorrect figures.

What constellation is Alphard in?

Alphard is a main star in the constellation Hydra and makes up the constellation outline.

What is the alpha iron abundance?

Alphard Iron Abundance is -0.03 with an error value of 9.99 Fe/H with the Sun has a value of 1 to put it into context. The value comes from the Hipparcos Extended Catalog.

What is the amount of energy that a star pumps out?

Luminosity is the amount of energy that a star pumps out and its relative to the amount that our star, the Sun gives out. The figure of 1,051.53 that I have given is based on the value in the Simbad Hipparcos Extended Catalogue at the University of Strasbourg from 2012.

What is the magnitude of the alphard?

Alphard has an apparent magnitude of 1.99, this is a measure of the brightness of the star as seen from Earth. Apparent Magnitude is also known as Visual Magnitude. If you used the 1997 Parallax value, you would get an absolute magnitude of -1.69 If you used the 2007 Parallax value, you would get an absolute magnitude of -1.72.

What type of star is Alphard?

Alphard is a Giant Star type star. Alphard is a K3 II-III giant star based on the spectral type that was recorded in the Michigan Catalogue of Two-Dimensional Spectral Types for the HD stars, Vol. 5.

What is the source of the fountains of the Great Deep?

The Euphrateans called Hydra the "Source of the Fountains of the Great Deep" [ Star Names, p.223.]

What is the meaning of "with Mars"?

With Mars: Trouble and scandal through love affairs. Attachment to a married person. Bad for childbirth, if a woman liable to miscarriage and death, together with death of child, danger of serious accidents; if afflicting luminaries, danger of death by drowning or poison. [ Robson ].

What does "if rising" mean?

If rising: Much trouble, anxiety and loss in connection with estates and building; addicted to women and intemperance. [ Robson ].

What is the 8th sieu?

In China it determined the 8th sieu ( Chinese Moon Mansion ), and was the prominent star of the Red Bird that combined the seven lunar divisions of the southern quarter of the heavens. Its longitude is said to have been ascertained there in the 19th century before our era, but the statement may be questionable; as also that it was observed passing the meridian at sunset on the day of the vernal equinox during the time of the emperor Yao, about 2350 B.C. It culminates on the 26th of March.

What is the nature of Ptolemy?

Ptolemy states that it is of the nature of Saturn and Venus, but according to Alvidas it is similar to the Sun and Jupiter in sextile. It gives wisdom, musical and artistic appreciation, knowledge of human nature, strong passions, lack of self control, immorality, revolting deeds and a sudden death by drowning, poison or asphyxiation. [ Robson, p.130.]

What are the bright stars in Ptolemy’s theory?

According to Ptolemy the bright stars are like Saturn and Venus. It is said to give an emotional and passionate nature, threatened by great troubles, and to cause some interest in shipping. [ Robson, p.47.]

What is the star in the neck of the Watersnake?

Alpha (α) Hydra, Alfard, is an orange star in the neck of the Watersnake.

What are the objects in the hydra?

Notable deep sky objects in Hydra include the open cluster Messier 48 , the globular cluster Messier 68 , the Southern Pinwheel Galaxy ( Messier 83 ), the Hydra Cluster of galaxies, the Porpoise Galaxy (NGC 2936) , Tombaugh’s Globular Cluster (NGC 5694) , the Ghost of Jupiter nebula, and the spiral galaxy ESO 510-G13.

How many stars are in the Hydra constellation?

It has 13 stars with known planets. The brightest star in Hydra constellation is Alphard, Alpha Hydrae, with an apparent magnitude of 1.98. There are two meteor showers associated with the constellation: the Alpha Hydrids and the Sigma Hydrids. Hydra constellation map by IAU and Sky&Telescope magazine.

How far away is Alpha Hydrae from the Sun?

Alpha Hydrae has an apparent magnitude of 2.0 and is approximately 177 light years distant from the Sun. It is the brightest star in the constellation. Alpha Hydrae has the stellar classification K3 II-III, which places it halfway between an orange giant and bright giant. It has three solar masses, 50 times the solar radius, and is believed to be around 420 million years old.

What is the constellation of Hydra?

Hydra constellation is usually associated with the second of Heracles’ labours in Greek mythology. Hydra was a giant multi-headed creature fathered by the monster Typhon and Echidna, who was half-woman, half-serpent. The dragon Ladon, that guarded the garden of the Hesperides, was Hydra’s brother.

How many stars are in Hydra?

Hydra is one of the 15 equatorial constellations. It contains seven named stars. The star names approved by the International Astronomical Union (IAU) are Alphard, Ashlesha, Felis, Lerna, Minchir, Ukdah, and Zhang.

Where is Messier 48?

Messier 48 (M48, NGC 2548) Messier 48 is an open star cluster in Hydra, believed to be about 300 million years old. It has an apparent magnitude of 5.5 and is approximately 1,500 light years distant from Earth. Open cluster Messier 48 (NGC 2548) The cluster was discovered by Charles Messier in 1771.

Where is the nu hydrae star?

ν Hydrae (Nu Hydrae) Nu Hydrae is an orange giant star located near the border with Crater constellation. It has an apparent magnitude of 3.115 and is approximately 144 light years distant from the solar system. The star has a radius 21 times solar and is 151 times more luminous than the Sun.