Archives for the 'atmosphere' Category
Unidentified Flying Sundog
Published on 18 Jan 2008 at 11:27 am.
8 Comments.
Filed under atmosphere, skywatching.
Two days ago, I wrote about an UFO sighting over Stephenville, TX, that has been getting a lot of press attention. Well, the local news paper, the Fort Worth Star Telegram, has published a photograph purportedly of the UFO. It is an excellent photograph of a parhelion! Here is the photograph, courtesy […]
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Parhelia
Published on 23 Nov 2007 at 10:20 pm.
2 Comments.
Filed under atmosphere, skywatching.
About a week or so ago, I was driving home and I looked up towards the Sun. It was late in the afternoon, and the Sun was fairly low in the sky. Off to either side of the Sun was a small rainbow pattern in the sky. They were parhelia (often called […]
Seeing and Transparency
Published on 9 Sep 2007 at 2:11 pm.
5 Comments.
Filed under amateur astronomy, atmosphere.
When you want to have some idea how to dress to go to a ball game or a picnic, or even to walk around outdoors, you turn to the radio or television and listen to the weather forecast. If you want more detail, then there are web sites, such as the National Weather Service […]
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AIMing at Earth
Published on 26 Apr 2007 at 1:10 pm.
No Comments.
Filed under Earth, atmosphere.
Well, that is an ominous sounding title. No, I don’t mean that alien space battlecruisers are aiming destructor beams at Earth. Rather, I am refering to yesterday’s launch of the Aeronomy of Ice in the Mesosphere (AIM) spacecraft aboard a Pegasus XL rocket.
Almost all of Earth’s clouds form in the troposphere, the lowest […]
Airglow
Published on 17 Nov 2006 at 2:11 pm.
3 Comments.
Filed under Earth, astronomy, atmosphere, skywatching.
Yesterday, I talked about twilight. I made it sound like once all the twilight was gone, then it got totally dark, with no light except that from the stars (moon, planets, streetlights, etc). Well, that isn’t quite true. As it turns out, it never gets completely dark. There is always some sky glow. And, that […]
