Dr Boffin
A perfect example of Nominative Determinism if ever I heard one
http://www.newscientist.com/article/mg19626322.300-feedback.html
The European Organisation for Astronomical Research in the Southern Hemisphere (aka ESO, or European Southern Observatory) has released a rather fetching snap of distant galaxies posing in the U-band - the boundary between visible light and ultraviolet - which shows some clusters of stars so old that they're seen "as they were …
I find these types of images the most interesting and yet equally the most boring images ever. It's truly amazing that what we are seeing is light which has travelled so far, and is so old it pre-dates so much time which the human brain can't even comprehend.
And yet, what can we *really* see? A few white pixels on a black background.
Oh oh. You know what this means?
That there billion times fainter, ba-jillion year old galaxy is bound to be messing with the events of my day. All our horoscopes are screwed up! Again!
I can't tell you how much this explains everything. We can only hope that Russell Grant is keeping careful notes on all this.
circled a few or put little pointy arrows to highlight them!
Perhaps it's just my 45-year-old eyesight, but they don't look a lot different from the merely-a-few-millions-of-years-"old" stars I see most nights.
I presume the picture contains both the ancient and distant ones and a few of the closer, less ancient ones.
"The stars in the photo have four spokes"
Yes, Joe, this is an artefact introduced by the fact that the secondary mirror of the telescope is suspended in the telescope tube by a "spider" of four struts.
There's a copy of "Amateur Telescope Making" in the pocket - but you really need a warm coat when observing, so mine is adapted from one of the space-suit modules used in the moon missions.
And the reason why that happens is because the diffraction pattern is strong enough to appear.
so the brighter the star, the more visible the spokes.
And the galaxies aren't bright enough (contrasty enough, really, since the spokes appear for each dot and so merge each other out and share the overall brightness) to show spikes.
So the ones with spokes aren't distant galaxies.
Which is why Joe mentioned them.
I suspect he knows as much as you do about telescopes. Maybe more. He does at least know what it MEANS better than you.
Sheesh.