To be a dwarf planet under the IAU definition, the object must meet the first two conditions described above; in addition, it must not have cleared its neighbourhood, and it must not be amoonof another body. Pluto falls into this category, as do the asteroid Ceres and the large Kuiper be...
The planets and other objects that circle the Sun are thought to have formed when part of an interstellar cloud of gas and dust collapsed under its own gravitational attraction and formed a disk-shaped nebula. Further compression of the disk’s central region formed the Sun, while the gas and...
Rahman, M et al., Nebularine (9-2'-deoxy-beta-D-ribofuranosylpurine) has the template characteristics of adenine in vivo and in vitro, Mutation Research, vol. 377, pp. 263-268 (1997).Rahman, M et al., Nebularine (9-2′-deoxy-β-D-ribofuranosylpurine) has the template characteristics...
Dr. Hubble subsequently obtained a spectrum plate for NGC 3309 which nebula is a member of the Hydra cluster. He kindly informs me that the apparent velocity of recession for NGC 3309 is of the order of 3950 km./sec., a value which is in good agreement with our original estimate. \ud...
Diagnosing the stratosphere-troposphere stationary wave response to climate change in a general circulation model [1]聽A stationary wave model (SWM) that captures the stratospheric and tropospheric stationary wave field is developed and applied to the problem of the st... Lei Wang and,PJ Kushner ...
Luminosities and other characteristics of stars with broad hi lines in the orion nebula clusterLuminosities and other characteristics of stars with broad hi lines in the orion nebula clusterNot Available Translationdoi:10.1007/BF01005814T. E. DervizKluwer...
The Earth began to form around a newly ignited Sun around 4.5 billion years ago. Earth formed out of the gravitational accumulation of the leftover debris in the solar nebula that birthed the Sun. This process of gravitational accumulation grows more violent with the increase in Earth's size....
The implications of mantle rare gas characteristics for both the acquisition of rare gases from the solar nebula and subsequent losses to space are examine... D Porcelli,D Woolum,P Cassen - 《Earth & Planetary Science Letters》 被引量: 98发表: 2001年 Evolving Attractive Faces Using Morphing ...
ahe announced the discovery of a star in a nebula. 他在星云宣布了在一个星的发现上。[translate] a通过软件分析出座椅静的刚度变化特性 Analyzes the chair static rigidity change characteristic through the software[translate] a准备就绪之后再发运 After preparation ready again ships out[translate] ...
ahe announced the discovery of a star in a nebula. 他在星云宣布了在一个星的发现上。[translate] aI slept for 3 hours 我睡觉了3个小时[translate] a母狗,你又不乖了 The bitch, you are not clever[translate] a见到我你会很失望的[translate] ...