M
MeteorWayne
Guest
<font color="yellow">From this month's NAMN notes:</font><br /><br />A Good Year for Watching Leonids, but...<br /><br />The moon is our friend this month for watching the Leonids. Whether the<br />shower will give us much to see remains to be seen. The nodal crossing,<br />which is the theoretical "annual" peak, is at 2:50 UT on November 18th. The<br />only enhancement I've been able to find so far is that of Mikhail Maslov and<br />Dr. Peter Jenniskens, who propose a short peak of ZHRs near 60/Hour at 23:05<br />UT (Nov 18), which will be during daylight in North America. It will be<br />visible from Asia, Indonesia and surrounding areas. <br />The nodal crossing (annual peak)<br />should give us only normal rates of background Leonids ~ 15 an hour, and<br />even that is not visible from North America, since it occurs before the<br />radiant has risen. The best locations for that should be in Europe, the<br />Middle East, and Northern Africa. After what we've seen over the last<br />decade, it will be a bit of a letdown to see Leonid rates fall back to their<br />normal levels. It's easy to get spoiled. The moon will be setting near<br />midnight, leaving the morning hours with dark skies, and highest rate should<br />occur during the early morning hours of the 18th and 19th. The next<br />outburst, from Dr. Jenniskens' book "Meteor Showers and their Parent Comets"<br />is expected in 2009.<br /><br />The Leonids are active from November 10-23 according to the current<br />IMO working list, although once again, video data suggests a longer period<br />from the 8th through the 28th. The Leonids are the fastest major shower meteors we see, <br />with a velocity of 71 km/sec when they intersect the atmosphere.<br /><br />Meteor Wayne<br /><br /><br /> <div class="Discussion_UserSignature"> <p><font color="#000080"><em><font color="#000000">But the Krell forgot one thing John. Monsters. Monsters from the Id.</font></em> </font></p><p><font color="#000080">I really, really, really, really miss the "first unread post" function</font><font color="#000080"> </font></p> </div>