| 词汇 | parsec |
| 释义 | BETA Examples of parsecparsec isn’t in the Cambridge Dictionary yet. You can help! Instead, cosmic rays would only be a serious threat for close sources (of the order of a few parsecs). The distance d to the star is in parsecs (pc). Answer: a simple factor of 3.26, but astronomers insist on using parsecs for their distance unit, seriously impeding communication with non-astronomers. Many blazars have apparent superluminal features within the first few parsecs of their jets, probably due to relativistic shock fronts. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. There is also a larger opaque toroid extending several parsecs from the central black hole, containing a hot gas with embedded regions of higher density. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The former is quite prominent; the latter has only two planets and has a host star farther away at 21.5 parsecs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The degree of polarization is on the order of 1.5% for stars at 1000 parsecs distance. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. A parsec is defined as the length of the side adjacent to the vertex occupied by a star whose parallax angle is one arcsecond. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. As a result he was able to come up with a distance estimate of 150,000 parsecs. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. If within 70 parsecs, the source could be either coherent or incoherent. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Most of these 100 young, massive stars seem to be concentrated within one or two disks, rather than randomly distributed within the central parsec. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Stars are born deep inside large complexes of molecular clouds, typically a few parsecs in size. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Astronomers use light years and parsecs to deal with huge distances, rather than kilometres. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is 110790 parsecs distant, 1420 light years across, and has a total luminosity of 2100 suns. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. It is 1,851 parsecs or 6,037 light-years away. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. One thousand light-years (roughly 307 parsecs) are seldom called a kilolight-year, abbreviated kly. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. Based on the distance modulus of 8.38, this cluster is located at a distance of about 470 parsecs, or 1,500 light years. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. The parsec (3.26 light-years) is defined as the distance for which the annual parallax is 1 arcsecond. From Wikipedia This example is from Wikipedia and may be reused under a CC BY-SA license. |
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