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Pi Scorpii. Pi Scorpii or π Scorpii, is a triple star [10] system in the southern constellation of Scorpius. With a combined apparent magnitude of 2.9, [2] it can be easily seen with the naked eye. Parallax measurements yield an estimated distance of around 590 light-years (180 parsecs) from the Sun. [2]
Pi 3 Orionis (π 3 Orionis, abbreviated Pi 3 Ori, π 3 Ori), also named Tabit / ˈ t eɪ b ɪ t /, is a star in the equatorial constellation of Orion. At an apparent visual magnitude of 3.16, [2] it is readily visible to the naked eye and is the brightest star in the lion's hide (or shield) that Orion is holding.
Pi1 Cygni ( π1 Cygni, abbreviated Pi1 Cyg, π1 Cyg) is a binary star [5] in the northern constellation of Cygnus. It is visible to the naked eye, having a combined apparent visual magnitude of 4.66. [2] The distance to this system can be roughly gauged by its annual parallax shift of 1.89 mas, [1] which yields a separation of around 1,700 ...
Pi Ceti, Latinized from π Ceti, is the Bayer designation for a star system in the equatorial constellation of Cetus. It is visible to the naked eye with an apparent visual magnitude of 4.238. [2] Observed to have an Earth half yearly parallax shift of 8.30 mas , [1] it is around 393 light years from the Sun .
Pi Aquarii, Latinized from π Aquarii, is the Bayer designation for a binary star in the equatorial constellation of Aquarius. This system has an apparent visual magnitude of a mean apparent magnitude of +4.57. [4] Based upon parallax measurements, it is located at a distance of roughly 780 light-years (240 parsecs) from Earth. [1]
Pi1 Ursae Majoris ( Pi1 UMa, π¹ Ursae Majoris, π¹ UMa) is a yellow G-type main sequence dwarf with a mean apparent magnitude of +5.63. It is approximately 46.8 light years from Earth, [1] and is a relatively young star with an age of about 200 million years. [11]
Pi Canis Majoris (π Canis Majoris; Latin for 'Greater Dog') is a binary star system in the southern constellation of Canis Major. It is visible to the naked eye, having an apparent visual magnitude of +4.69. Based upon an annual parallax shift of 33.80 mas as seen from Earth, this system is located 96.5 light years from the Sun.
In computer science, the iterated logarithm of , written log * (usually read "log star"), is the number of times the logarithm function must be iteratively applied before the result is less than or equal to . The simplest formal definition is the result of this recurrence relation:
Pi6 Orionis (π 6 Ori, π 6 Orionis) is a solitary [9] star in the eastern part of the constellation Orion. It is visible to the naked eye with an apparent visual magnitude of 4.469. [2] Based upon an annual parallax shift of 3.45 mas, [1] it is around 950 light-years from the Sun. At that distance, the visual magnitude of the star is reduced ...
π Persei, Latinized as Pi Persei, is a single star in the northern constellation of Perseus. It has the traditional name Gorgonea Secunda / ɡ ɔːr ɡ ə ˈ n iː ə s ɪ ˈ k ʌ n d ə /, the second of three Gorgons in the mythology of the hero Perseus. This star has a white hue and is faintly visible to the naked eye with an apparent visual ...