[Prev][Next][Index][Thread]
(meteorobs) Re: Geminids Parent Body
Karl and All,
To answer your questions:
1. Yes, Geminid observations obtained this year under moonlight are
still valuable. Just be sure to face away from the radiant this year to
avoid the intense moonlight.
2. The 2003 Leonids will still be a decent shower with slight
enhancements when we pass close to several dust trails. With any luck
rates of 30-60 Leonids per hour may be witnessed for a short time near
closest approach to each dust trail.
Clear Skies!
Bob Lunsford
Antoine ANTIER wrote:
>
> Hi all!
>
> If I'm right, Geminids are likely to come from the earth-grazer asteroid
> Phaeton. This explains the very low rate of fragmentation of the metezoroids
> of this shower because of their density ( 2g/cm3). The discover of this
> possible parent body of the Geminids had happen in 1983 an it's Fred Whipple
> that first thought it could be the source of this meteor shower. It was
> confirmed in 1990 by Bo Gustafon by the similarity between Geminids trajectory
> and Phaeton. It's quite funny that an asteroid can let meteoroids on it's
> orbit, and some explaination have been advanced to explain that, like the warm
> up of the asteroid when it passes close to the Sun, the possible former comet
> nature of Phaeton, the collision between meteoroids and the asteroid's
> surface, a possible fragmentation of the asteroid itself... The meteoroids
> that produce But other meteor showers seem to be linked to asteroids
> trajectories and whose maxima had been calculated by both searchers Jack
> Drummond and Ian Halliday may occur on February,22, August, 14 ( beta
> triangulids? I'm not sure of the spelling and alpha ursamajorids? ) ,
> september, 29 and december 22 ( Ursids?).
> That's all I can found on it.
> If I'm wrong, correct me please.
>
> Two little questions, too:
> 1- Will report made of Geminids usable if they are made when the Moon is up?
> 2- What will happen for 2003 Leonids, ZHR of 10, more, less?
>
> Clear skies and good luck for the Geminids and Ursids!
>
> Karl.
To UNSUBSCRIBE from the 'meteorobs' email list, use the Web form at:
http://www.tiacdot net/users/lewkaren/meteorobs/subscribe.html
References: