2091 Visibility Forecast
63
Visibility Score
15.7
Expected /hr
56.1%
Moon Illum.
fair
65.3°
Best Alt.
at 21:00
Radiant Altitude & Hourly Rate (Peak Night)
விளக்கம்
Medium strength, sometimes reaching high activity (50-75/hr in 2006-2009). Swift with persistent trains.
வரலாறு
Shares parent body (Halley's Comet) with eta Aquariids. Earth crosses Halley's outbound orbit.
Radiant Position
Shower Properties
IAU CodeORI
ClassMajor Shower
ZHR20
Velocity66.0 km/s
Speed ClassSwift (>50 km/s)
Pop. Index (r)2.5
Radiant RA95.0°
Radiant Dec+15.8°
Peak Sol. Lng.208.0°
தாய் உடல்1P/Halley
Parent Typecomet
Best Hemisphereboth
2091 Dates
Activity StartOct 02
Activity EndNov 07
உச்ச தேதிOct 20
Moon PhaseWaxing Gibbous
Moon Condition
fair
Best Timepredawn
Characteristics
Fast Meteors
Variable Rates
Persistent Trains