Principal nighttime meteor showers

Principal nighttime meteor showers

Table
Principal nighttime meteor showers
shower average date
of maximum normal
duration
(days) visual strength
(Northern Hemisphere) entry velocity
(km/sec) associated comet
Quadrantid January 3   1 medium 41 not known
Lyrid April 22   1 irregular 48 Thatcher
Eta Aquarid May 3   5 weak 66 Halley
Southern Delta Aquarid July 29   8 medium 41 not known
Capricornid July 30   3 medium 23 not known
Perseid August 12   5 strong 59 Swift-Tuttle
Andromedid October 3 11 weak 21 Biela
Draconid October 9   1 irregular 20 Giacobini-Zinner
Orionid October 21   2 medium 66 Halley
Taurid November 8 30 weak 28 Encke
Leonid November 17 less than 1 irregular 71 Tempel-Tuttle
Geminid December 14   4 strong 34 (3200) Phaethon*
*This body was classified as an asteroid on discovery, but it is now suspected to be a burnt-out comet.
Source: Data derived primarily from A.F. Cook in NASA SP-319 (1973).
See as table:

* * *


Universalium. 2010.

Игры ⚽ Нужен реферат?

Look at other dictionaries:

  • meteor and meteoroid — ▪ astronomy Introduction   respectively, a glowing streak in the sky (meteor) and its cause, which is a relatively small stony or metallic natural object from space (meteoroid) that enters Earth s atmosphere and heats to incandescence. In modern… …   Universalium

  • meteor shower — Astron. the profusion of meteors observed when the earth passes through a meteor swarm. Also, meteoric shower. [1875 80] * * * Entry into Earth s atmosphere of multiple meteoroids (see meteor), traveling in parallel paths, usually spread over… …   Universalium

Share the article and excerpts

Direct link
Do a right-click on the link above
and select “Copy Link”