2018 Napoved vidljivosti
90
Ocena vidljivosti
137.4
Pričakovano /h
30.9%
Osvetl. Lune
fair
82.6°
Najb. višina
at 18:00
Višina radianta in urna stopnja (noč vrha)
Opis
Usually the strongest shower of the year. Good activity before midnight unlike most showers. Bright, intensely colored meteors. Medium-slow velocity means few persistent trains.
Zgodovina
First observed in 1862. Unique among major showers for having an asteroidal parent body (3200 Phaethon).
Položaj radianta
Lastnosti roja
Koda IAUGEM
RazredMajor Shower
ZHR150
Hitrost35.0 km/s
Razred hitrostiMedium (30-50 km/s)
Pop. indeks (r)2.6
RA radianta112.0°
Dek. radianta+33.0°
Vrh. sol. dolžina262.2°
Matično telo3200 Phaethon
Vrsta matičnega telesaasteroid
Najboljša poloblaboth
2018 Datumi
Začetek aktivnostiDec 04
Konec aktivnostiDec 20
Datum vrhaDec 13
Lunina fazaFirst Quarter
Stanje Lune
fair
Najboljši čas2am
Značilnosti
Strongest Annual
Bright Meteors
Colorful
Early Evening