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Discover LudwigThe phrase "a comet that appears" is correct and usable in written English.
You can use it when describing a specific comet that becomes visible or is observed in the sky.
Example: "Astronomers are excited about a comet that appears every 76 years, providing a rare opportunity for observation."
Alternatives: "a comet that is visible" or "a comet that shows up".
Exact(1)
Hamilton is a comet that appears briefly, then departs.
Similar(59)
The first certain appearance of Halley's Comet in the historical record is a description from 240 BC, in the Chinese chronicle Records of the Grand Historian or Shiji, which describes a comet that appeared in the east and moved north.
52,31; the way Olympiodorus reminds his students about a comet that had appeared in March/April 565 suggests that the event occurred a couple of years earlier).
Early in 1619, Father Grassi had anonymously published a pamphlet, An Astronomical Disputation on the Three Comets of the Year 1618, which discussed the nature of a comet that had appeared late in November of the previous year.
Tryon was a comet that streaked across the tour.
Han Chinese astronomers made star catalogues and detailed records of comets that appeared in the night sky, including recording the 12 BC appearance of the comet now known as Halley's comet.
There are other explanations for the phenomenon, such as planetary conjunctions, and there are also records of other comets that appeared closer to the date of Jesus' birth.
Comets that appeared under neutral conditions provided evidence of double strand breaks (DSBs); whereas comets produced under alkaline conditions indicated single strand breaks (SSBs).
This calculation enabled him, after examining historical records, to determine that the orbital elements of a second comet that had appeared in 1682 were nearly the same as those of two comets that had appeared in 1531 (observed by Petrus Apianus) and 1607 (observed by Johannes Kepler).
Rosetta will descend towards a region containing a pit that appears to be where the comet releases dust and gas into space.
Of course a comet could appear that has never been seen before, in which case you get little warning, so cannot predict that.
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Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com