News: Page 3
Updates Completed
January 17, 2011 - The updates, as previously announced (http://www.caglow.com/news/32) are now in place. Currently, we are moving forward to move all non-news material from the News section to Info. This should take no more than a few hours. Meanwhile, if there is anything abnormal, please leave a message: http://www.caglow.com/contact All help is appreciated. Read more...
Expected Updates
January 17, 2011 - The Caglow Web platform has gone for over a year without any real updates. It has been even longer since the last major site-wide revision. That is about to change in the coming weeks with version 1.2 of the Caglow Web platform. A few of the first changes are already in place, namely inline image support (in news articles) and updates to the front page. The rest have been held back for further ... Read more...
Solar Cycle 24 Predictions
January 16, 2011 - The sun goes through cycles of activity levels every 11 or so years. Tracking the number of sunspots over a long duration of time will show the pattern of ups and downs. The current cycle, solar cycle 24 was originally predicted a few years ago to be peaking right now. So far, it has just barely begun. Since that initial prediction, the forecast has been updated a good number of times to the po... Read more...
Capitol Reef NP, UT
January 15, 2011 - NOTE: This article has been moved to the info section: http://www.caglow.com/info/darksky/capitol-reef Any further updates will ONLY show there. Capitol Reef National Park, in central Utah, is one of the most remote national park in Utah. Within park boundaries, there is absolutely no significant source of light pollution. Any which may exist would require highly sensitive equipment to detect. ... Read more...
Yellowstone, ID/MT/WY
January 14, 2011 - NOTE: This article has been moved to the info section: http://www.caglow.com/info/darksky/yellowstone Any further updates will ONLY show there. Yellowstone is the world's first and likely most famous national park. The land of geysers, hot springs and steam vents, actually a large volcano, is also home to Wyoming's darkest sky. Plenty has changed since Lewis and Clark made their way to the area... Read more...
Arches National Park, UT
January 04, 2011 - You wouldn't know it in the daytime but Arches National Park, with its world-famous natural arches, is among the darkest of places in the country. Although anywhere in the park is great for viewing the heavens, certain parts are more favorable than others. The most accessible area of the park is long its main winding scenic road. Because of the city of Moab near the park entrance to the south,... Read more...
Death Valley, CA/NV
January 04, 2011 - NOTE: This article has been moved to the info section: http://www.caglow.com/info/darksky/death-valley Any further updates will ONLY show there. Death Valley is about as far as one can get, in California, from the city lights. The valley is the land of extremes being hottest in the western hemisphere, lowest and driest on North America, and some of the best observing sites in the world. Deat... Read more...
Dark Sky, USA
January 03, 2011 - The world, especially the United States, is increasingly brightening up the night sky. Ever since the invention of the incandescant bulb, the myriad of stars across the sky have become all but wiped out by the excessive use of poorly directed lights also called light pollution. Light pollution, primarily present in cities, is what prevents two thirds of Americans from seeing the Milky Way. It also... Read more...
Aciqra License 1.0
January 01, 2011 - It is now about time that the Aciqra License be finalized. It has come a long way from the original, 9.11 pre-release with several more (10.3 and 10.7) following. This latest revision should last at least another year or more barring any loopholes discovered. The only real changes made to this revision of the license are clarifications to its sections to better withstand legal challenges it may... Read more...
Solstice Lunar Eclipse
December 18, 2010 - It has been a long time since the last total lunar eclipse occurred back in February, 2008. That was visible from all the continents which border the Atlantic Ocean. This time, the eclipse is centered on the west coast of North America visible from all of North America, almost all of South America and fringes of Europe (beginning), Asia and Australia/Oceania (end). The eclipse reaches greatest ... Read more...
WT: Mass-Luminosity Relation
November 15, 2010 - NOTE: This article has been moved to the info section: http://www.caglow.com/info/wtopic/mass-lumin Any further updates will ONLY show there. Like humans, all stars are unique. Some may be very similar but on the whole, they are all different. Unlike humans however, knowing just one property of the star says a lot about everything else. With the majority, if not all stars, the more massive i... Read more...
WT: Tully-Fisher Relation
November 07, 2010 - NOTE: This article has been moved to the info section: http://www.caglow.com/info/wtopic/tully-fisher Any further updates will ONLY show there. Spiral galaxies are rotating bodies. The velocity of their rotation is related to their size. The Tully Fisher Relation approximately models this for type Sa, Sb and Sc galaxies. Using this information, it becomes possible to find its approximate distan... Read more...
WT: Magnitude Arithmetic
October 31, 2010 - NOTE: This article has been moved to the info section: http://www.caglow.com/info/wtopic/mag-arith Any further updates will ONLY show there. The brightness of astronomical objects are listed by magnitudes. In astronomy, each magnitude is 10^0.4 (about 2.512) times higher than the previous. This makes the combining of magnitudes a bit different from say that of earthquakes which follow and base ... Read more...
WT: Cepheid Variables
October 24, 2010 - NOTE: This article has been moved to the info section: http://www.caglow.com/info/wtopic/cepheid Any further updates will ONLY show there. Most stars in the night sky shine at more or less the same brightness for centuries. One example of such a star is the sun maintaining a relatively constant absolute visual magnitude of 4.83. Other stars are less stable in their brightness which may vary by ... Read more...
Supermassive Star Found
October 17, 2010 - This July, ESO researchers have discovered what appears to be the most massive star we know of possibly topping 300 solar masses. Not only is this the most massive star ever found but is potentially the most luminous one as well possibly topping 10 million solar luminosities. Such a star is expected to have an extremely short lifetime and explode in a rare pair-instability supernova which leaves n... Read more...
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