| Perseids (PER) | |
|---|---|
 Perseids in 2017 as seen from the White Desert, Egypt | |
| Pronunciation | /ˈpɜːrsi.ədz/[1] |
| Discovery date | AD 36 (first record)[2][3] |
| Parent body | Comet Swift–Tuttle[4] |
| Radiant | |
| Constellation | Perseus and Cassiopeia (near HD 19557) |
| Right ascension | 03h 13m [5] |
| Declination | +58°[5] |
| Properties | |
| Occurs during | July 14 – September 1[5] |
| Date of peak | August 12 (August 13 for 2023)[5] |
| Velocity | 58.8[5] km/s |
| Zenithal hourly rate | 100[5] |
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.
- ^ "Perseid". Merriam-Webster.com Dictionary. Merriam-Webster.
- ^ 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.
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