b Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity", The Astronomical Journal, 135 (1): 209–231, Bibcode:2008AJ. ^ (in Chinese) 中國星座神話, written by 陳久金. Published by 台灣書房出版有限公司, 2005, ISBN 978-986-7332-25-7. Iota Hydrae (ι Hydrae, abbreviated Iota Hya, ι Hya), formally named Ukdah / ˈ ʌ k d ə/, is a star in the constellation of Hydra, about 8° to the north-northwest of Alphard (Alpha Hydrae) and just to the south of the celestial equator. NGC 3311 is a supergiant elliptical galaxy (a type-cD galaxy) located about 190 million light-years away in the constellation Hydra. The galaxy was discovered by astronomer John Herschel on March 30, 1835. It was later rediscovered by astronomer Guillaume Bigourdan on February 26, 1887. NGC 3312 was later listed and equated with IC 629 because the two objects share essentially the same celestial coordinates. This is a double star with an angular separation of 2.6 ±0.1 arc second along a position angle of 265.1° ±1.0°, as of 2003. The brighter component is an A-type main sequence star with a stellar classification of A1 Vnn. epsilon 0 *bos* 1 The 2 Fulton 3 County 4 Grand 5 Jury 6 said 7 Friday 8 an 9 investigation 10 of 11 Atlanta 12 's 13 re
It is a single giant star, cooler than the sun but larger and more luminous. It is about 177 light years away.
NGC 3311 is a supergiant elliptical galaxy (a type-cD galaxy) located about 190 million light-years away in the constellation Hydra. The galaxy was discovered by astronomer John Herschel on March 30, 1835. It was later rediscovered by astronomer Guillaume Bigourdan on February 26, 1887. NGC 3312 was later listed and equated with IC 629 because the two objects share essentially the same celestial coordinates. This is a double star with an angular separation of 2.6 ±0.1 arc second along a position angle of 265.1° ±1.0°, as of 2003. The brighter component is an A-type main sequence star with a stellar classification of A1 Vnn. epsilon 0 *bos* 1 The 2 Fulton 3 County 4 Grand 5 Jury 6 said 7 Friday 8 an 9 investigation 10 of 11 Atlanta 12 's 13 re Readbag users suggest that topkeywords.pdf is worth reading. The file contains 170 page(s) and is free to view, download or print.
It was later rediscovered by astronomer Guillaume Bigourdan on February 26, 1887. NGC 3312 was later listed and equated with IC 629 because the two objects share essentially the same celestial coordinates.
zažil, můžete se těšit na jeho strašidelné historky s bubáky, strašáky, proradnými můrami a tajemnými povozy, při jejichž čtení se budete i trochu bát. 17×24 cm, pevná vazba, 64 stran, 198 Kč, 8,32 �, ISBN 978-80-271-0081-1 It is rotating rapidly with a projected rotational velocity of 19 km s−1. It has an X-ray luminosity of 2.8 × 1029 erg s−1. With an apparent visual magnitude of 4.3, it is visible to the naked eye. However, it is the faintest of the five stars that form the "head" of the hydra. Based upon an annual parallax shift of 5.56 mas, it is located roughly 590 light years… The inner layers of the nebula were formed some 1,500 years ago. The two ends of the nebula are marked by Fliers, lobes of fast moving gas often tinted red in false-color pictures. It is visible to the naked eye with an apparent visual magnitude of 4.48. The estimated distance to this star from the Sun, based upon an annual parallax shift of 8.75 mas, is around 370 light-years. There is no cluster in the position indicated by Messier. The value that he gave for the right ascension matches that of NGC 2548, however, his declination is off by five degrees. Credit for discovery is sometimes given instead to Caroline… b Massarotti, Alessandro; et al. (January 2008), "Rotational and Radial Velocities for a Sample of 761 Hipparcos Giants and the Role of Binarity", The Astronomical Journal, 135 (1): 209–231, Bibcode:2008AJ.
This is a double star with an angular separation of 2.6 ±0.1 arc second along a position angle of 265.1° ±1.0°, as of 2003. The brighter component is an A-type main sequence star with a stellar classification of A1 Vnn.
Iota Hydrae (ι Hydrae, abbreviated Iota Hya, ι Hya), formally named Ukdah / ˈ ʌ k d ə/, is a star in the constellation of Hydra, about 8° to the north-northwest of Alphard (Alpha Hydrae) and just to the south of the celestial equator. NGC 3311 is a supergiant elliptical galaxy (a type-cD galaxy) located about 190 million light-years away in the constellation Hydra. The galaxy was discovered by astronomer John Herschel on March 30, 1835. It was later rediscovered by astronomer Guillaume Bigourdan on February 26, 1887. NGC 3312 was later listed and equated with IC 629 because the two objects share essentially the same celestial coordinates.
Messier 84 or M84, also known as NGC 4374, is an elliptical or lenticular galaxy in the constellation Virgo. Charles Messier discovered Messier 84 on 18 March 1781 in a systematic search for "nebulous objects" in the night sky. Messier 68 (also known as M68 or NGC 4590) is a globular cluster in the equatorial constellation Hydra. It was discovered by Charles Messier in 1780. William Herschel described it as "a beautiful cluster of stars, extremely rich, and so… Their population density decreases with increasing distance from the core. It has an active supermassive black hole at its core, which forms the primary component of an active galactic nucleus. zažil, můžete se těšit na jeho strašidelné historky s bubáky, strašáky, proradnými můrami a tajemnými povozy, při jejichž čtení se budete i trochu bát. 17×24 cm, pevná vazba, 64 stran, 198 Kč, 8,32 �, ISBN 978-80-271-0081-1 It is rotating rapidly with a projected rotational velocity of 19 km s−1. It has an X-ray luminosity of 2.8 × 1029 erg s−1. With an apparent visual magnitude of 4.3, it is visible to the naked eye. However, it is the faintest of the five stars that form the "head" of the hydra. Based upon an annual parallax shift of 5.56 mas, it is located roughly 590 light years… The inner layers of the nebula were formed some 1,500 years ago. The two ends of the nebula are marked by Fliers, lobes of fast moving gas often tinted red in false-color pictures.
Download book PDF. Chapters Table of contents (6 Introduction. Jim Pitman. Pages 1-77. PDF · Repeated Trials and Sampling. Jim Pitman. Pages 79-137.
Messier 68 (also known as M68 or NGC 4590) is a globular cluster in the equatorial constellation Hydra. It was discovered by Charles Messier in 1780. William Herschel described it as "a beautiful cluster of stars, extremely rich, and so… Their population density decreases with increasing distance from the core. It has an active supermassive black hole at its core, which forms the primary component of an active galactic nucleus. zažil, můžete se těšit na jeho strašidelné historky s bubáky, strašáky, proradnými můrami a tajemnými povozy, při jejichž čtení se budete i trochu bát. 17×24 cm, pevná vazba, 64 stran, 198 Kč, 8,32 �, ISBN 978-80-271-0081-1 It is rotating rapidly with a projected rotational velocity of 19 km s−1. It has an X-ray luminosity of 2.8 × 1029 erg s−1. With an apparent visual magnitude of 4.3, it is visible to the naked eye. However, it is the faintest of the five stars that form the "head" of the hydra. Based upon an annual parallax shift of 5.56 mas, it is located roughly 590 light years… The inner layers of the nebula were formed some 1,500 years ago. The two ends of the nebula are marked by Fliers, lobes of fast moving gas often tinted red in false-color pictures.