The stars orbit each other with a period of over years.
The primary star has 2. Alpha Piscium has a combined apparent magnitude of 3.
Epsilon Piscium is an orange giant star belonging to the stellar class K0 III, slightly larger and more luminous than the Sun. The star is a suspected occultation double, composed of two stars with the same magnitude separated by 0. Theta Piscium has the stellar classification of K1 III, which means that the star is another orange giant. It is brighter, yet cooler than the Sun.
Delta Piscium is a binary star with an apparent magnitude of 4. It is approximately light years distant from the Sun.
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It lies two degrees from the ecliptic and is regularly occulted by the Moon. The primary star in the system is an orange giant with the stellar classification of K5 III. It is times more luminous than the Sun and has a radius The 13th magnitude companion is two arc minutes away and thought to be a K9-class dwarf or merely a star in the same line of sight. The star used to have the designation 51 Ceti. Nu Piscium is cooler, yet larger and more luminous than the Sun.
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It has a mass 1. Beta Piscium is a blue-white main sequence star with the stellar classification B6Ve. It has a visual magnitude of 4. It is also the nearest known solitary white dwarf. The stellar classification DZ8 indicates that the star has elements heavier than helium in its spectrum, which is to say metals. The star was discovered by the Dutch-American astronomer Adriaan van Maanen in It has an apparent magnitude of The star is located about two degrees south of Delta Piscium.
Its age is estimated to be around three billion years. It has the stellar classification of C5III and is approximately light years distant. The star has an apparent magnitude that varies between 4. It is a variable carbon star, which is to say a late type star that resembles a red giant or less frequently a red dwarf , that has an atmosphere with more carbon than oxygen.
It is an orange dwarf about It is a variable star, exhibiting variations in magnitude from 5. Its age is estimated to be about 6 billion years. The star used to have the designation 2 Arietis. It has two visual companions. Piscium is an orange main sequence dwarf belonging to the stellar class K2 V.
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It has a visual magnitude of 5. It is about 5. It has an apparent magnitude of 5. It has the stellar classification K0 V. The star has a confirmed planet in its orbit, discovered in , and a brown dwarf was also discovered orbiting it in The exoplanet 54 Piscium b as rendered by Celestia. It is about 6. The companion star, the brown dwarf, belongs to the stellar class T7. It has a mass 50 times that of Jupiter, or 0. It was the first brown dwarf discovered around a star that had a confirmed extrasolar planet in its orbit.
The planet has roughly the same mass as Saturn and orbits the star at a distance of 0. It takes 52 days to complete an orbit. Piscium is a yellow subgiant star with the stellar classification of G8 IV. It has an apparent magnitude of 6.
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It is older than the Sun and has a similar mass; 98 percent that of the Sun. The star is slightly larger, with a radius 1. It is believed to be about 7. Two planets have been detected orbiting the star. One completes an orbit every 7. The Circlet asterism is located south of Pegasus constellation , in the western fish of Pisces. Testudo is formed by the stars 24, 27, YY 30 , 33 and 29 Piscium. In , the astronomer John Hill suggested that this region of Pisces should be a separate constellation, called Testudo, or the Turtle. His proposal was neglected by most astronomers at the time.
Messier 74 is a spiral galaxy seen face-on. With two very clearly defined spiral arms, M74 is a textbook example of a grand design spiral galaxy. It is believed to contain about billion stars. Acknowledgment: R. Chandar University of Toledo and J. Miller University of Michigan. M74 has a low surface brightness and of all the Messier objects it is the one most difficult for amateur astronomers to observe.
It is located 1. Messier subsequently included the galaxy in his catalogue. SNap was one of the rare Type Ic supernovae, also known as hypernovae, discovered in recent years. Hypernovae are supernovae explosions with a substantially higher amount of energy than regular supernovae, and are believed to be the origin of long-duration gamma-ray bursts, which are some of the most energetic events observed in space. In March , an ultraluminous X-ray source was discovered in Messier 74 which emitted more X-ray power than a neutron star in periods of about every two hours, indicating the presence of an intermediate-mass black hole.
The suspected black hole is believed to have a mass of 10, Suns. Other members of the group include NGC , a peculiar spiral galaxy, and a few smaller irregular galaxies. The cluster lenses a galaxy located behind it, which results in arc-like images of the galaxy in the background. The cluster is approximately 3. A blue smudge near the cluster center is likely another image of the same background galaxy. In all, a recent analysis postulated that at least 33 images of 11 separate background galaxies are discernable.
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The galaxy is a strong radio source. The long radio jets are created by a supermassive black hole at the heart of the galaxy. The galaxy has an apparent magnitude of Refresh thy soul, friend, With the ever flowing waters of wealth-giving wisdom. Take from the Saviour of saints the honey-sweet food; Eat with joy and desire, holding the Fish in thy hands. I pray thee, Lord Saviour, satisfy his hunger with the Fish.
May my mother rest peacefully, I beseech thee, Light of the dead. Aschandius, father, my heart's beloved With my dearest mother and my brothers In the peace of the Fish remember thy Pectorius. It is also its most bright star. It is light-years from Earth. It is a star with multiple names.