The period of April 11-20 sees a little more diversity as a number of showers become active. Though most are minor, the Lyrids (LYR) are the first major shower since the Quadrantids of early January. Unfortunately, the Lyrids introduce a theme that will be all too common this year, a major shower ruined by bright moonlight.
Obs Date(UT) Time TOT SPO ANT ZCY SLE PPU LYR NCY SAL3 2011-04-20 09h 11m 15 6 2 - 1 0 5 1 ALLS 2011-04-20 09h 26m 6 4 0 - 0 0 2 0 SAL3 2011-04-19 09h 13m 6 4 0 - 0 0 0 2 ALLS 2011-04-19 09h 43m 10 8 1 - 0 0 1 0 SAL3 2011-04-18 09h 16m 6 6 0 - 0 0 0 0 ALLS 2011-04-18 09h 34m 4 4 0 - 0 0 0 0 SAL3 2011-04-17 09h 17m 7 7 0 - - 0 0 - ALLS 2011-04-17 09h 47m 2 1 0 - - 0 1 - SAL3 2011-04-16 09h 19m 11 9 1 - - 0 1 - ALLS 2011-04-16 09h 49m 5 3 0 - - 0 2 - SAL3 2011-04-15 09h 22m 11 11 0 - - 0 - - ALLS 2011-04-15 09h 51m 4 3 1 - - 0 - - SAL3 2011-04-14 09h 24m 5 4 1 - 0 - - - ALLS 2011-04-14 09h 52m 6 4 2 - 0 - - - SAL3 2011-04-13 09h 26m 7 5 2 0 0 - - - ALLS 2011-04-13 00h 41m 2 2 0 0 0 - - - SAL3 2011-04-12 09h 27m 11 8 2 0 1 - - - ALLS 2011-04-12 09h 57m 3 3 0 0 0 - - - SAL3 2011-04-10 09h 30m 13 11 2 0 0 - - - ALLS 2011-04-11 09h 59m 3 3 0 0 0 - - - SAL3 - SALSA3 camera in Tucson (Carl Hergenrother) ALLS - Near all-sky camera in Tucson (Carl Hergenrother) VIST - Visual observations from Tucson (Carl Hergenrother) VISH - Visual observations from Hermosillo (Salvador Aguirre) HERM - PARENI camera in Hermosillo (Salvador Aguirre) SDG - Camera in San Diego operated by Bob Lunsford Time - Total amount of time each camera looked for meteors TOT - Total number of meteors detected SPO - Sporadics (meteors not affiliated with any particular meteor shower) ANT - Antihelions ZCY - Zeta Cygnids SLE - Sigma Leonids PPU - Pi Puppids LYR - Lyrids NCY - Nu Cygnids
The Transient Sky - Comets, Asteroids, Meteors 