"Professor Goddard does not know the relation between action and reaction and the need to have something better than a vacuum against which to react. He seems to lack the basic knowledge ladled out daily in high schools."
--1921 New York Times editorial about Robert Goddard's revolutionary rocket work.

"Correction: It is now definitely established that a rocket can function in a vacuum. The 'Times' regrets the error."
NY Times, July 1969.

— New York Times

Jupiter+moons

By ebfaulkner6a at Wed, 09/16/2009 - 7:18am

I'm always trying something new.  Tuesday evening was no different.  This image was taken using my new G8 mount, Starlight Xpress ccd SVX-H9, filter wheel, Ha filter, required diagonal to focus, 5x Televue lens.  I used the Ha filter to cut the light and allow imaging the planet and moons at the same time.  Taken between 11 and 11:45 pm in Whiting, NJ.   261 combined images 0.6 exposures, processed in Adobe and Registax5.  The three moons are Io, Europa and Ganymede upper right hand corner.  Whew!

Jupiter+moons

Jupiter in ha?

Submitted by kuky
on Thu, 09/17/2009 - 9:24pm

Wow
never saw that b4
very kool