83 Leonis Bb, also catalogued as HD 99492 b or abbreviated 83 Leo Bb, is an extrasolar planet approximately 58 light-years away in the constellation of Leo, also called by which term that's one of the big cats in the Felidae family and a member of genus "Panthera"?
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83 Leonis Bb 83 Leonis Bb, also catalogued as HD 99492 b or abbreviated 83 Leo Bb, is an extrasolar planet approximately 58 light-years away in the constellation of Leo (the Lion). The planet was discovered in January 2005 by the California and Carnegie Planet Search team, who use the Doppler spectroscopy method to detect planets. It orbits in a close orbit around the star, completing one orbit in about 17 days.
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Lion The lion ("Panthera leo") is one of the big cats in the Felidae family and a member of genus "Panthera". It has been listed as Vulnerable on the IUCN Red List since 1996, as populations in African range countries declined by about 43% since the early 1990s. Lion populations are untenable outside designated protected areas. Although the cause of the decline is not fully understood, habitat loss and conflicts with humans are the greatest causes of concern. The West African lion population is listed as Critically Endangered since 2016. The only lion population in Asia survives in and around India's Gir Forest National Park and is listed as Endangered since 1986.
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Gliese 649 Gliese 649 is a red dwarf star in the constellation of Hercules, located roughly 34 light years from the Sun. The star has been found to host an extrasolar planet.
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Lambda Lupi Lambda Lupi (λ Lup) is a triple star system in the southern constellation of Lupus. It is visible to the naked eye with a combined apparent visual magnitude of 4.04. Based upon an annual parallax shift of just 4.20 mas as seen from Earth, it is located roughly 800 light years from the Sun. The system has a peculiar velocity of relative to its neighbors, making it a candidate runaway star system. It is a member of the Upper-Centaurus Lupus sub-group in the Scorpius-Centaurus OB association.
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Upsilon Leonis Upsilon Leonis (υ Leo) is a star in the zodiac constellation of Leo. It is visible to the naked eye with an apparent visual magnitude of 4.33. The distance to this star, as determined using parallax measurements, is about 182 light years. At that distance, the visual magnitude of the star is diminished by an estimated extinction factor of 0.02 because of interstellar dust.
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60 Leonis 60 Leonis (60 Leo) is a peculiar star in the constellation Leo. Its apparent magnitude is 4.398.
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RR Caeli RR Caeli is a double star in the constellation Caelum. It is approximately 66 light years from Earth. It was first noted to be a high-proper motion star in 1955 by Jacob Luyten, and given the name LFT 349. Discovered to be an eclipsing binary in 1979, it has a baseline magnitude of 14.36, dimming markedly every 7.2 hours for an interval of around 10 minutes, due to the total eclipse of the brighter star by the fainter one. Its variability in brightness led to its being given the variable star designation RR Caeli in 1984. This star system consists of a red dwarf of spectral type M6 and a white dwarf that orbit each other every seven hours; the former is 18% as massive as the Sun, while the latter has 44% of the Sun's mass. The red dwarf is tidally locked with the white dwarf, meaning it displays the same side to the heavier star. The system is also a post-common-envelope binary, and the red dwarf star is transferring material onto the white dwarf. In approximately 9–20 billion years, RR Caeli will likely become a cataclysmic variable star due to the period's gradual shortening, leading to increasing rates of transfer of hydrogen to the surface of the white dwarf.
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HD 103197 HD 103197 is a 9th magnitude K-type main sequence star located approximately 170 light years away in the constellation Centaurus. This star is smaller, cooler, dimmer, and less massive than our Sun. Also its metal content is thirteen-eighths as much as the Sun. In 2009, a gas giant planet was found in orbit around the star.
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Leo Cluster The Leo Cluster (Abell 1367) is a galaxy cluster about 330 million light-years distant (z = 0.022) in the constellation Leo, with at least 70 major galaxies. Along with the Coma Cluster, it is one of the two major clusters comprising the Coma Supercluster. Along with being a part of the Coma Supercluster, that with many others, helps form the CfA2 Great Wall, which is hundreds of millions light years long and is one of the largest structures in the universe. Leo has many galaxies, galaxy clusters and quasars; but lacks nebulae, planetaries, or star clusters.
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Lambda Librae λ Librae (Latinised as Lambda Librae) is the Bayer designation for a binary star system in the zodiac constellation of Libra. It can be faintly seen with the naked eye on a dark night, having an apparent visual magnitude of 5.03. With an annual parallax shift of 10.54 mas, it is located roughly 310 light years from the Sun. At that distance, the visual magnitude of this system is diminished by an extinction factor of 0.22 due to interstellar dust.
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Leo Supercluster The Leo Supercluster is a supercluster in the Northern Celestial Hemisphere that stretches across the constellations Ursa Major and Leo. It covers an area approximately 130 megaparsecs long by 60 megaparsecs wide. The redshifts of member galaxy clusters range from 0.032 to 0.043. The brightest cluster in the system is Abell 1185.
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Gliese 849 Gliese 849 is a red dwarf star approximately 29 light years away in the constellation of Aquarius.
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Leopard The leopard ("Panthera pardus") is one of the five "big cats" in the genus "Panthera". It is a member of the family Felidae with a wide range in sub-Saharan Africa and parts of Asia. Fossil records suggest that in the Late Pleistocene it occurred in Europe and Japan.
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Gamma Leonis b Gamma Leonis b is an extrasolar planet located 125.5 light years away in the constellation Leo, orbiting the giant star Gamma Leonis.
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HD 68988 b HD 68988 b is a hot jupiter located approximately 192 light-years away in the constellation of Ursa Major, orbiting the star HD 68988 in a moderately eccentric orbit.
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HD 147513 b HD 147513 b is an exoplanet approximately 42 light-years away in the constellation of Scorpius. It is at least 21% more massive than Jupiter. But unlike Jupiter, it orbits the star much closer, mean distance being only a third more than Earth's distance from the Sun. Its orbit is also eccentric; at periastron, it is closer to itse star than Earth is from the Sun, whereas at apastron, it is further from its star than Mars to the Sun, finding itself on the outer edge of the habitable zone.
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Gliese 581d Gliese 581d (often shortened to Gl 581d or GJ 581d) is a possible extrasolar planet orbiting within the Gliese 581 system, approximately 20.4 light-years away in the Libra constellation. It is the third planet claimed in the system and (assuming a six-planet model) the fifth in order from the star.
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47 Ursae Majoris c 47 Ursae Majoris c (abbreviated 47 UMa c), also named Taphao Kaew (Thai: ตะเภาแก้ว , rtgs: Taphaokaeo ,  ] ), is an extrasolar planet approximately 46 light-years from Earth in the constellation of Ursa Major. The planet was discovered located in a long-period around the star 47 Ursae Majoris. Its orbit lasts 6.55 years and the planet has a mass at least 0.540 times that of Jupiter.
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21 Leonis Minoris 21 Leonis Minoris is a star in the constellation of Leo Minor. With an apparent magnitude of about 4.5, the star is faintly visible to the naked eye (see Bortle scale). Parallax estimates made by the Hipparcos spacecraft put it at a fairly close distance of about 92.1 light years (28.2 parsecs) away from the Earth. It is considered a member of the Sirius supercluster.
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HD 8574 b HD 8574 b is an extrasolar planet discovered in 2001 by a team of European astronomers using Doppler spectroscopy as part of the ELODIE Planet Search Survey, and was published in a paper with five other planets. HD 8574 b is in the orbit of host star HD 8574. The planet is at most two times the mass of Jupiter, orbiting every 227 days at three quarters of the distance between the Earth and Sun. HD 8574 b has a very elliptical orbit, far more than that of Jupiter.
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Zeta Chamaeleontis Zeta Chamaeleontis (ζ Cha), is a star located in the constellation Chamaeleon. Zeta Chamaeleontis is also known as HR 3860, and HD 83979. Located around 570 light-years distant, it shines with a luminosity approximately 522 times that of the Sun and has a surface temperature of 13544 K. South African Astronomer A.W.J. Cousins noted it to vary between magnitudes 5.06 and 5.17 in 1960. It was classified as a Beta Cephei variable in the Hipparcos and Tycho Catalogues (ESA 1997), with a period of 1.07 days, before being reclassified as a Slowly pulsating B star in the 2011 version.
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F Hydrae F Hydrae, also known as HD 74395, is a star in the constellation Hydra with an apparent magnitude is 4.64. It was catalogued as 31 Monocerotis, but this name is now rarely used since the star is now within the boundaries of Hydra. It is a low mass yellow supergiant around a thousand times brighter than the sun and five times as massive.