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Anders Celsius's original thermometer used a reversed scale, with 100 as the freezing point and 0 as the boiling point of water.. In 1742, Swedish astronomer Anders Celsius (1701–1744) created a temperature scale that was the reverse of the scale now known as "Celsius": 0 represented the boiling point of water, while 100 represented the freezing point of water. [5]
Henize 70 was first observed in 1950 in a survey of bright planetary nebulae.Based on appearance it was proposed that it might be a supernova remnant. [7] In 1956, it was added to a catalogue of Hα emission stars and nebulae by Karl Gordon Henize, where it was described as an emission nebula rather than a planetary nebula.
The OB association LH 54 was catalogued by astronomers Lucke and Hodge in 1970, listed as containing 18 member stars. It is associated with NGC 1955, part of the N51 H II region. [7]
Areas south of the twenty-fourth parallel with elevations up to 1,000 meters (3,281 ft) (the southern parts of both coastal plains as well as the Yucatán Peninsula), have a desert climate and a yearly median temperature between 24 and 28 °C (75.2 and 82.4 °F).
A hypergiant (luminosity class 0 or Ia +) is a very rare type of star that has an extremely high luminosity, mass, size and mass loss because of its extreme stellar winds.The term hypergiant is defined as luminosity class 0 (zero) in the MKK system.
Georgiy L. Stenchikov is an applied mathematician and climate scientist focusing on studies of physical processes that govern the Earth's climate. He is a professor in the Department of Earth Science and Engineering at the King Abdullah University of Science and Technology in Saudi Arabia.
The genus was first described by Jean Baptiste Bory de Saint-Vincent in 1825. [8] The genus name of Lessonia is in honour of René Primevère Lesson (1794–1849), who was a French surgeon, naturalist, ornithologist, and herpetologist. [9]