© Jacek Halicki 2016. Perseid meteor seen in 2016 from Poland.

π-Puppid meteor shower 2024

Dominic Ford, Editor
From the Meteor Showers feed

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The π-Puppid meteor shower will be active from 15 April to 28 April, producing its peak rate of meteors around 23 April.

Over this period, the shower will be active whenever its radiant point – in the constellation Puppis – is above the horizon, with the number of meteors increasing the higher the radiant point is in the sky.

Unfortunately, however, the radiant point of the π-Puppid shower is only ever above the horizon during the daytime, which means that no meteors will be visible from Fairfield . They may, nonetheless, be detected by radio antennas even during the daytime, which pick up radio bursts associated with the ionisation trails left in the wake of the meteors as they burn up in the atmosphere.

The origin of the shower

Meteor showers arise when the Earth passes through streams of debris left behind in the wake of comets and asteroids. Over time, the pieces of grit-like debris in these streams distribute themselves along the length of the parent object's orbit around the solar system.

Shooting stars are seen whenever one of these pieces of debris collides with the Earth's atmosphere, typically burning up at an altitude of around 70 to 100 km.

On certain days of the year the Earth's orbit passes through particularly dense streams, associated with comets or asteroids which have vented particularly large amounts of solid material to space, and this gives rise to an annual meteor shower. Such showers recur on an annual basis, whenever the Earth passes the particular point in its orbit where it crosses the particular stream of material.

The geometry of meteor shower radiants The geometry of meteor shower radiants
All of the meteors associated with any particular shower appear to radiate from a common point on the sky (not drawn to scale).

The meteors that are associated with any particular meteor shower can be distinguished from others because their paths appear to radiate outwards from a common point on the sky, which points back in the direction from which their orbital motion brought them.

This is because the grit particles in any particular stream are travelling in almost exactly the same direction when they cross the Earth's orbit, owing to having very similar orbits to the parent object they came from. They strike the Earth from almost exactly the same direction, and at the same speed.

To see the most meteors, the best place to look is not directly at the radiant itself, but at any dark patch of sky which is around 30–40° away from it. It is at around this distance from the radiant that the most meteors will be seen.

By determining the position of this radiant point on the sky, it is possible to work out the orbit of the stream giving rise to any particular meteor shower. It is sometimes even be possible to identify the particular body responsible for creating the debris stream, if there is a known comet or asteroid with a very similar orbit.

The parent body responsible for creating the π-Puppid shower has been identified as comet 26P/Grigg-Skjellerup.

The radiant of the π-Puppid meteor shower is at around right ascension 07h10m, declination 45°S, as shown by the green circle on the planetarium above.

The sky on 23 Apr 2024

The sky on 23 April 2024
Twilight ends
Twilight begins

15-day old moon
Waning Gibbous


15 days old

Rise Culm. Set
Mercury 05:21 11:43 18:05
Venus 05:40 12:09 18:38
Moon 18:35 00:13 05:43
Mars 04:34 10:25 16:16
Jupiter 06:56 14:03 21:10
Saturn 04:16 09:54 15:31
All times shown in EDT.


The position of the radiant of this shower, and its predicted hourly rate, were taken from International Meteor Organisation's List of Meteor Showers.

Image credit

© Jacek Halicki 2016. Perseid meteor seen in 2016 from Poland.





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