[AZ-Observing] Re: How many Asteroids?

There are the same number now as there were then.  (Nyuk nyuk nyuk).   Of
course, we are now AWARE of a lot more of them!  ;^)

I don't have any data on that.  Actual counts of cataloged asteroids
probably run between 20,000 and 30,000, but you always here talk of
"millions" or "billions", which there probably are, but such talk is
actually little more than speculation.

Perhaps the Minor Planet Center in Boston would have some data.  Check their
website.


Richard Harshaw
Cave Creek, AZ

-----Original Message-----
From: az-observing-bounce@xxxxxxxxxxxxx
[mailto:az-observing-bounce@xxxxxxxxxxxxx] On Behalf Of Rick Tejera
Sent: Thursday, August 28, 2008 7:27 PM
To: az-observing@xxxxxxxxxxxxx
Subject: [AZ-Observing] How many Asteroids?

All,
Lindsay's Science curriculum this year has an astronomy unit that will focus
on the Solar System. I've offered to do a presentation for the class when
they get to that unit. My working title is "Not Your Dad's Solar System".
The theme will be the advances in what we know about the solar system now
compared to when I was in 7th grade (1972, yeah, I'm old). One of the
comparisons is the growth in how many asteroids there are now vs. how many
were know back then. Any ideas where I can dig this up?

Thanks
Clear Skies

Rick Tejera
Editor SACnews,
Public Outreach Coordinator
Saguaro Astronomy Club
Phoenix, Arizona
www.saguaroastro.org <http://www.saguaroastro.org/> 
saguaroastro@xxxxxxx 




--
See message header for info on list archives or unsubscribing, and please 
send personal replies to the author, not the list.

--
See message header for info on list archives or unsubscribing, and please 
send personal replies to the author, not the list.

Other related posts: