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Astronomy Buff

Archive for March 2007

March 31st, 2007

Universcale: A Flash App to Put You In Your Place

“Pinky, are you pondering what I’m pondering?”
“I think so Brain, but if Jimmy cracks corn, and no one cares, why does he keep doing it?”
Sometimes thinking about how big the universe is hurts my brain. That’s why I’m so glad someone at Nikon (wtf?!) decided to take on the arduous and unenviable task of […]

By Tony -- 1 comment

March 30th, 2007

Jupiter’s Spin Produces 10 Million Volts Around its Poles

Here is a stunning image taken in November 1998 with the Hubble Space Telescope Imaging Spectrograph (STIS). It is an ultraviolet image of auroras over the north pole of Jupiter.

Image Credit: ESA
It turns out that the auroras on Jupiter are larger than our entire planet. Here’s a composite image of a Hubble […]

By Tony -- 0 comments

March 30th, 2007

Solar Plasma Following Magnetic Field Lines

Some very good friends of mine have been working on the Solar-B mission and I’ve been quite impressed with the images coming out. I haven’t seen a lot of bloggers posting images from this spacecraft, so I thought I’d provide one.
Below is an image of the solar chromosphere, a region just above what is […]

By Tony -- 0 comments

March 30th, 2007

Why You Need a Telescope

I cannot remember a time in my life when I didn’t have a telescope. Since childhood, from a time before my earliest memories, there has been some kind of telescope in my possession.
I looked at the moon incessantly during the Apollo program in the 1960’s and 1970’s, I had many craters and mountain ranges […]

By Tony -- 0 comments

March 29th, 2007

Edmund Astroscan: Another Great Beginner’s Telescope

Of all the telescopes I own, I use my Edmund Astroscan the most. It usually sits in my living room floor, waiting for me to grab it and go outside for a quick look. It is small, inexpensive, with reasonably good optics.
It is also very durable. I had it in the trunk […]

By Tony -- 2 comments

March 28th, 2007

Dobsonians: A Great Beginners Scope

In my previous two posts on what makes a good beginner’s telescope, I emphasized ease of use. No telescope meets that criterion better than the Dobsonian.
It is perfect in its simplicity and offers the best value among the larger aperture telescopes. It was invented by an amateur astronomer named John Dobson. He […]

By Tony -- 1 comment

March 28th, 2007

My Globe at Night Results

The time for reporting sky glow conditions for the Globe at Night project has elapsed. Fortunately, I was traveling around the state during this time so I was able to report observations for several areas.
During the two weeks or so the Globe at Night project was accepting results, I took measurements from Louisville, Boulder, […]

By Tony -- 0 comments

March 26th, 2007

An Astronomer Lives Here

The photo at left is a picture of the street behind my backyard. As you can see, there are streetlights lining the entire length, just as you’d find on many streets. These streetlights are the reason I can’t set up my telescopes in my own backyard, they flood my house with so much […]

By Tony -- 3 comments

March 26th, 2007

How Much Should You Spend on Your First Telescope?

How much should you spend on your very first telescope? Get ready because I’m not going to say something predictable like, ‘well the answer is different depending on many factors like budget, interest level, and experience, blah, blah, blah…’.
No, my answer to this question is always the same: between $500.00 - $600.00. […]

By Tony -- 0 comments

March 24th, 2007

Sky-Map.org is Now WikiSky.org (or was it always that way?)

I just read this from NewScientist.com about a new site called wikisky.org and I excitedly clicked on the link to get me there.
The site looked awfully familiar to me, it looked just like sky-map.org. Apparently, they are the same site, just different domain. Perhaps this was always set up this way and I […]

By Tony -- 0 comments

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