Perseids

Perseids (PER)
Perseids in 2017 as seen from the White Desert, Egypt
Pronunciation/ˈpɜːrsi.ədz/[1]
Discovery dateAD 36 (first record)[2][3]
Parent bodyComet Swift–Tuttle[4]
Radiant
ConstellationPerseus and Cassiopeia
(near HD 19557)
Right ascension03h 13m [5]
Declination+58°[5]
Properties
Occurs duringJuly 14 – September 1[5]
Date of peakAugust 12
(August 13 for 2023)[5]
Velocity58.8[5] km/s
Zenithal hourly rate100[5]
See also: List of meteor showers

The Perseids are a prolific meteor shower associated with the comet Swift–Tuttle that are usually visible from mid-July to late-August. The meteors are called the Perseids because they appear from the general direction of the constellation Perseus and in more modern times have a radiant bordering on Cassiopeia and Camelopardalis.

  1. ^ "Perseid". Merriam-Webster.com Dictionary. Merriam-Webster.
  2. ^ Bill Cooke; Danielle Moser & Rhiannon Blaauw (August 11, 2012). "NASA Chat: Stay 'Up All Night' to Watch the Perseids!" (PDF). NASA. p. 55. Archived from the original (PDF) on October 25, 2020. Retrieved August 16, 2013.
  3. ^ Cite error: The named reference Kronk was invoked but never defined (see the help page).
  4. ^ Cite error: The named reference moore_rees2011 was invoked but never defined (see the help page).
  5. ^ a b c d e f Cite error: The named reference AMS2023 was invoked but never defined (see the help page).