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Alpha Monocerotids Meteor Shower

The Alpha Monocerotids meteor shower takes place within the boundaries constellation of Monoceros. The meteor showers occurs between Nov 15 - Nov 25 with the peak occuring on the Nov 21 every year.

The Solar Longitude (Abbrev: S.L., λ ☉) is 239 degrees, this value is the the date of maximum activity. It is measured as a degree with zero degree indicating spring equinox (roughly March 21st/22nd). 90 is the Summer Solstice, 180 is the Autumn Equinox and 270 is the Winter Solstice. This degree is independent of the calender. AMS .

The Alpha Monocerotids are one of two meteor Shower that occur in the vacinity of the constellation of Monoceros. The other one being simply named Monocerotids. Based on its radiate point location, the meteor shower could quite easily be credited to the Canis Minor with its bright star Alpha Canis Minoris Procyon which is far bigger than anything else in the vacinity. The name for the meteor shower is presumed to be because of its radiate centre is close to Alpha Monocerotis, although granted that the radiate point is closer to Zeta Monocerotis. The meteorites are believed to have come from a long period comet , one that has not been identified.

The closest star to the radiant point of the meteor shower is Alpha Monocerotis. The coordinates can also be determined by the Right Ascension (116.8) and the Declination (0.9).

The Zenith Hourly Rate or how many you expect to see during the hour is Var. The ZHR can radically increase if the comet or associated object is close by. The speed/velocity of the Meteor Shower particles is 63 km/s. The population index of the meteor shower is 2. The population index refers to the magnitude distribution of the meteorites, the smaller the index, the brighter the meteors are, the higher, the dimmer the meteors are. For this particular meteor shower, faint meteors are more frequent.

Related Meteor Showers :-

Recent and Forthcoming Meteor Showers :-

Alpha Monocerotids Meteor Shower Facts

Closest Star to Radiant PointAlpha Monocerotis
Max Activity Date21 Nov
Population Index2
Activity PeriodNov 15 - Nov 25
Right Ascension116.8
Solar Longitude / λ ☉239 °
Zenith Hourly RateVar
Semi-Major Axis500.0000

Location of the Radiant Point for the Alpha Monocerotids Meteor Shower

Map showing the location of where the Alpha Monocerotids radiate from within Monoceros

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