Reference Article

from Wikipedia, the free encyclopedia

Sun dog

A sun dog or sundog (scientific name parhelion) is a relatively common atmospheric optical phenomenon associated with the reflection/refraction of sunlight by the numerous small ice crystals that make up cirrus or cirrostratus clouds.

Note: This article excerpts material from the Wikipedia article "Sun dog", which is released under the GNU Free Documentation License.

See the following related content on ScienceDaily:


Related Videos

last updated on 2014-04-18 at 10:53 pm EDT

Scientists Target UVA Rays for Future Sunscreens

Scientists Target UVA Rays for Future Sunscreens

Reuters (Nov. 25, 2013) British scientists have created a molecule they say could greatly improve the effectiveness of sun-screens and reduce the incidence of skin cancer. Whereas most sun-screens protect against exposure to short-wave, ultraviolet B rays, the scientists are targetting long-wave UVA rays which they say cause just as much damage. Jim Drury has more.
Powered by NewsLook.com
Alaska Bore Tide Draws Surfers, Viewers

Alaska Bore Tide Draws Surfers, Viewers

AP (June 6, 2012) Mother Nature put on a show near Anchorage, and it had nothing to do with Venus and the sun.
Powered by NewsLook.com
Kyrgyzstan: Free from the State Power Grid

Kyrgyzstan: Free from the State Power Grid

Deutsche Welle (May 28, 2012) The Central Asian state's high mountains are flecked with glaciers and snowfields. Climate change is causing them to melt faster. Mudslides and floods are threatening the population and its power supply. The country is responding to the new challenge with an awareness-raising campaign. And the sun is being harnessed as a clean and reliable energy source. Hospitals in the country are installing solar panels to cut their reliance on harmful diesel generators during power cuts.
Powered by NewsLook.com
RAW VIDEO: 'Ring of Fire' Solar Eclipse Seen in Australia

RAW VIDEO: 'Ring of Fire' Solar Eclipse Seen in Australia

Russia Today (May 10, 2013) People in remote parts of Northern Australia were recently treated to a rare nighttime sight: An annular solar eclipse in which the moon blocks the Sun, leaving a thin 'ring of fire' uncovered.
Powered by NewsLook.com

Related Stories


Share This



Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins