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[vsnet-chat 2220] other query



Dear Steve (and vsnetters),

>Thanks for the answer on the supernova question; would you happen to
>know the answer to these other questions:
>
>--Planetary nebulae eject what two heavy elements into the galaxy?

It depends on their track of evolution.

>--What satellite galaxy is moving fastest toward the galactic center?

The satellite galaxy of our Galaxy? Sorry I don't know.

>--How many miles per second does the Sun move in its orbit?

If you mean the galactic rotation, it is about 200-250 km/s = 125 -
155 miles/s. 

Sincerely Yours,
Hitoshi Yamaoka, Kyushu Univ., Japan
yamaoka@rc.kyushu-u.ac.jp

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