2156 Visibility Forecast
72
Visibility Score
16.9
Expected /hr
29.2%
Moon Illum.
good
65.5°
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
2156 Dates
Activity StartOct 02
Activity EndNov 07
உச்ச தேதிOct 19
Moon PhaseFirst Quarter
Moon Condition
good
Best Timepredawn
Characteristics
Fast Meteors
Variable Rates
Persistent Trains