Ursids

2030 2031 2032

2031 Visibility Forecast

55
Visibility Score
7.1
Expected /hr
49.7%
Moon Illum.
fair
53.8°
Best Alt.
at 01:00

Radiant Altitude & Hourly Rate (Peak Night)

Açıklama

Often neglected as it peaks just before Christmas and after Geminids. 5-10/hr normally with occasional outbursts exceeding 25/hr. Northern hemisphere only.

Geçmiş

Outbursts appear unrelated to 8P/Tuttle perihelion dates.

Radiant Position

Shower Properties

IAU CodeURS
ClassMinor Shower

ZSH10
Velocity33.0 km/s
Speed ClassMedium (30-50 km/s)
Pop. Index (r)3.0

Radiant RA217.0°
Radiant Dec+76.0°
Peak Sol. Lng.270.7°

Ana Cisim8P/Tuttle
Parent Typecomet
Best Hemispherenorthern

2031 Dates

Activity StartDec 17
Activity EndDec 26
Zirve TarihiDec 21

Moon PhaseFirst Quarter
Moon Condition fair
Best Timepredawn

Characteristics

Northern Only Occasional Outbursts