* Astronomy

Blobrana · L

RE: Gamma-Delphinids

Blobrana · L

Gamma Delphinid meteor shower: June 11, 2013

The American Meteor Society (AMS) is predicting that the Gamma Delphinid meteor shower should appear around 4:28 a.m. Eastern Daylight Time (EDT), or 8:30 Universal Time (UT), on Tuesday morning. Other equivalent times include 3:28am Central Daylight Time (CDT), 2:28am Mountain Daylight Time (MDT), and 1:28am Pacific Daylight Time (PDT).
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Blobrana · L

Possible Gamma-Delphinid return

According to information in Peter Jenniskens' book "Meteor Showers & Their Parent Comets" (Cambridge University Press, 2006), on 1930 June 11, three American Meteor Society observers at the same site in Maryland, USA, apparently saw a shortlived meteor outburst from an otherwise unknown source, the Gamma-Delphinids, with a radiant estimated as near alpha = 312°, Delta = +17°. The meteors were apparently quite fast-moving (a geocentric velocity of ~ 57 km/s has been suggested). Activity was seen from the proposed shower during only a thirty-minute interval, 02h15m-02h45m UT, albeit there was a full Moon in the sky throughout. It seems no confirmation of this report was made elsewhere, while the suggested radiant was very low at the claimed time, all of which difficulties create doubts about exactly what the three observers may have witnessed. However, Peter Jenniskens' has proposed that a fresh return of this possible shower may happen in 2013, on June 11 at or around 08h28m UT.
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