Meteor Activity Outlook for March 22-28, 2025

During this period, the moon reaches its last quarter phase on Saturday March 22nd. At that time 90 degrees west of the sun and will rise near 03:00 local daylight-saving time (LDST). Since the half-illuminated moon will be present during the more active morning hours, rates will be reduced during this time. The estimated total hourly rates for evening observers this weekend should be near 1 as seen from mid-northern latitudes (45N) and 2 as seen from tropical southern locations (25S). For morning observers, the estimated total hourly rates should be near 3 as seen from mid-northern latitudes (45N) and 6 as seen from tropical southern locations (25S). The actual rates seen will also depend on factors such as personal light and motion perception, local weather conditions, alertness, and experience in watching meteor activity. Note that the hourly rates listed below are estimates as viewed from dark sky sites away from urban light sources. Observers viewing from urban areas will see less activity as only the brighter meteors will be visible from such locations.

The radiant (the area of the sky where meteors appear to shoot from) positions and rates listed below are exact for Saturday night/Sunday morning March 22/23. These positions do not change greatly day to day so the listed coordinates may be used during this entire period. Most star atlases (available online and at bookstores and planetariums) will provide maps with grid lines of the celestial coordinates so that you may find out exactly where these positions are located in the sky. I have also included charts of the sky that display the radiant positions for evening, midnight, and morning. The center of each chart is the sky directly overhead at the appropriate hour. These charts are oriented for facing south but can be used for any direction by rotating the charts to the desired direction. A planisphere or computer planetarium program is also useful in showing the sky at any time of night on any date of the year. Activity from each radiant is best seen when it is positioned highest in the sky, either due north or south along the meridian, depending on your latitude. Radiants that rise after midnight will not reach their highest point in the sky until daylight. For these radiants, it is best to view them during the last few hours before dawn. It must be remembered that meteor activity is rarely seen at its radiant position. Rather they shoot outwards from the radiant, so it is best to center your field of view so that the radiant lies toward the edge and not the center. Viewing there will allow you to easily trace the path of each meteor back to the radiant (if it is a shower member) or in another direction if it is sporadic. Meteor activity is not seen from radiants that are located far below the horizon. The positions below are listed in a west to east manner in order of right ascension (celestial longitude). The positions listed first are located further west therefore are accessible earlier in the night while those listed further down the list rise later in the night.

These sources of meteoric activity are expected to be active this week

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The center of the large Anthelion (ANT) radiant is currently located at 13:00 (195) -06. This position lies in central Virgo, 8 degrees northwest of the 1st magnitude star known as Spica (alpha Virginis). Due to the large size of this radiant, Anthelion activity may also appear from northern Corvus as well as Virgo. This radiant is best placed near 0200 LDST, when it lies on the meridian and is located highest in the southern sky. Rates at this time should be near 2 per hour no matter your location. With an entry velocity of 30 km/sec., the average Anthelion meteor would be of slow velocity.

The eta Ophiuchids (EOP) were discovered by Dr. Peter Jenniskens and his Cameras for All Sky Meteor Surveillance (CAMS). The weak shower is active from March 12 through April 5 with maximum activity occurring on March 18. The current position of this radiant is 17:39 (265) -17. This area of the sky lies in southeastern Ophiuchus, 2 degrees south of the 4th magnitude star known as xi Serpentis. This area of the sky is best positioned for viewing during the last dark hour prior to dawn. Hourly rates are expected to always be less than 1 no matter your location. With an entry velocity of 71 km/sec., these meteors would have a swift velocity.

The nu Cygnids (NCY) were discovered by Jürgen Rendtel and Sirko Molau of the International Meteor Organization. These meteors are active from March 22 to April 23 with maximum activity occurring on April 21^st. The current position of this radiant is 18:55 (284) +29, which lies in southern Lyra, 4 degrees south of the 3^rd magnitude star known as Sulafat (gamma Lyrae). This area of the sky is best positioned for viewing during the last dark hour prior to dawn. Hourly rates are expected to be less than 1 no matter your location. With an entry velocity of 44 km/sec., these meteors would have a medium velocity.

The delta Pavonids (DPA) were discovered by Michael Buhagiar from Australia in the 1970’s. These meteors are active from March 21 through April 6, with maximum activity occurring on March 31st. The current position of the radiant lies near 19:37 (294) -63. This area of the sky lies in central Pavo, 4 degrees east of the 4th magnitude star known as lambda Pavonis. These meteors are best seen during the last dark hour prior to dawn when the radiant lies in the southeastern sky. With an entry velocity of 59km/sec., the average meteor from this source would be of fast velocity. Expected rates are less than 1 per hour during this period. Due to the far southern location, these meteors are poorly seen from the northern hemisphere.

The zeta Cygnids (ZCY) were also discovered by Jürgen Rendtel and Sirko Molau of the International Meteor Organization. These meteors are active from March 21 to May 1st with maximum activity occurring on April 5th. The current position of this radiant is 19:51 (298) +40, which lies in western Cygnus, 5 degrees west of the 2nd magnitude star known as Sadr (gamma Cygni). This area of the sky is best positioned for viewing during the last dark hour prior to dawn. Hourly rates are expected to be less than 1 no matter your location. With an entry velocity of 44 km/sec., these meteors would have a medium velocity.

Sporadic meteors are those meteors that cannot be associated with any known meteor shower. All meteor showers are evolving and disperse over time to the point where they are no longer recognizable. Away from the peaks of the major annual showers, these sporadic meteors make up the bulk of the activity seen each night. As seen from the mid-northern hemisphere (45N) one would expect to see during this period approximately 4 sporadic meteors per hour during the last hour before dawn as seen from rural observing sites. Evening rates would be near 2 per hour. As seen from the tropical southern latitudes (25S), morning rates would be near 6 per hour as seen from rural observing sites and 3 per hour during the evening hours. Locations between these two extremes would see activity between these listed figures. Morning rates are reduced due to moonlight.

The list below offers the information in tabular form of the showers that I feel are within reach of the visual observer to discern. Hourly rates are often less than one, so these sources are rarely listed as visual targets in most meteor shower lists. If you are like me and wish to associate as many meteors as possible with known sources, then you will appreciate these listings. Before listing meteors from these obscure sources, you should attempt to prove these meteors belong to them and are not chance alignments of sporadic meteors. You can note parameters such as duration, length, radiant distance and the elevation of each meteor to help compute the probability of shower association.  It should be remembered that slow meteors can be seen from fast showers, but fast meteors cannot be produced from slow showers. Slower showers are those with velocities less than 35/km per second. Slow meteors can appear from fast showers when they appear close to the radiant or low in the sky. The table located on page 22 of the IMO’s 2025 Meteor Shower Calendar is a big help in aiding in the identification of meteors. If you record the length and duration of each meteor, you can use this chart to check the probability of the meteor belonging to a shower of known velocity. If the angular velocity is similar to the figure in the table, then your meteor probably belongs to that shower. Rates and positions are exact for Saturday night/Sunday morning.

You can keep track of the activity of these meteor showers as well as those beyond the limits of visual observing by visiting the NASA Meteor Shower Portal. You can move the sky globe to see different areas of the sky. Colored dots indicate shower meteors while white dots indicate sporadic (random) activity. The large orange disk indicates the position of the sun so little activity will be seen in that area of the sky.

Class Explanation: A scale to group meteor showers by their intensity:

• Class I: the strongest annual showers with Zenith Hourly Rates normally ten or better.
• Class II: reliable minor showers with ZHR’s normally two to ten.
• Class III: showers that do not provide annual activity. These showers are rarely active yet have the potential to produce a major display on occasion.
• Class IV: weak minor showers with ZHR’s rarely exceeding two. The study of these showers is best left to experienced observers who use plotting and angular velocity estimates to determine shower association. These weak showers are also good targets for video and photographic work. Observers with less experience are urged to limit their shower associations to showers with a rating of I to III.
  

Tags: Anthelion Meteors delta Pavonids eta Ophiuchids March Meteor Activity March Meteor Showers Meteors Nu Cygnids Zeta Cygnids

Robert Lunsford

Bob has been interested in the stars as far back as he can recall His first experience with meteors was a biggie, the 1966 Leonid shower. In 1980, a major awaking occurred. He received a sample copy of Meteor News. He was amazed to learn there was a group actually devoted strictly to meteor observing! He joined the group also started to view some of the minor showers list among the pages of Meteor News. Lastly, he was contracted by Springer Publishing in 2007 to write a book on observing meteors. The book is now available and hopefully will be a useful guide to all interested in the enjoyable field of meteor observing.