On 3/28/06, Dave Staples <dave.staples@teknovus.com> wrote:
> I don't know if I would consider today's an easy one (M87) just because of
> the plethora of similar objects in the area.
Yes, there are a lot of eliptical and round galaxies there. But, one more
clue or so, or one more square turned over should have given it away. The
clue about the fascinating discovery at Lick a century ago referred to the
relativistic jet hiding under one of the squares - its a very distinctive
feature seen only in M87. The reference to Halton Arp was his later
discovery of another relitivistic jet (opposite) in the same object.
Another clue I didn't use was that the object has 13,000 to 15,000 globular
clusters, compared to the couple hundred in our own galaxy.
The relativistic jet can be seen under square 57. You can look at the
guesses "flip-card" style using the "Next Page" button:
http://www.resource-intl.com/astro.concentration.html
I believe we have some observers in TAC who have seen this feature visually
in their telescopes. And yes, Dave, it is fun to learn about the
constellations and objects... Fifteen minutes of research to get the clues
is quick and interesting....
Received on Tue Mar 28 11:26:31 2006