Thursday, April 24, 2014
Thursday, June 16, 2011
last june 15 2011 20;14 UT, total lunar eclipse occured in the philippine sky at 04:14 am (june 16). as total lunar eclipse, the moon is very nice view during the maximum eclipse, many filipino astronomers and observers enjoyed to observing the eclipse because super shadow is visible lies the center of the moon on the philippine standard time (PST) at 03:33 am, and yet this eclipse is most recent on this year. The second total lunar eclipse of this year occur on december 10 2011, and thanks the sky because during the eclipse has no cloud.
Monday, June 6, 2011
Thursday, June 2, 2011
The Andromeda Galaxy (IPA: /ænˈdrɒmədə/, also known as Messier 31, M31, or NGC 224; often referred to as the Great Andromeda Nebula in older texts) is a spiral galaxy approximately 2.5 million light-years away in the constellation Andromeda. It is the nearest spiral galaxy to our own, the Milky Way, and is visible as a faint smudge on a moonless night to the naked eye.
Andromeda is the largest galaxy of the Local Group, which consists of the Andromeda Galaxy, the Milky Way Galaxy, the Triangulum Galaxy, and about 30 other smaller galaxies. Although the largest, it may not be the most massive, as recent findings suggest that the Milky Way contains more dark matter and may be the most massive in the grouping. However, recent observations by the Spitzer Space Telescope revealed that M31 contains one trillion (1012) stars, greatly exceeding the number of stars in our own galaxy. 2006 estimates put the mass of the Milky Way to be ~80% of the mass of Andromeda, which is estimated to be 7.1×1011 solar masses.
At an apparent magnitude of 4.4, the Andromeda Galaxy is notable for being one of the brightest Messier objects, making it easily visible to the naked eye even when viewed from areas with moderate light pollution. It appears quite small without a telescope because only the central part is bright enough to be visible, but the full angular diameter of the galaxy is seven times that of the full moon.
Tuesday, December 28, 2010
Wednesday, July 28, 2010
hi, this lunar eclipse is happened as june 26 2010 before occur the total solar eclipse of july 11 2010. from the philippines, the geatest eclipse will not visible because hazy cloud covering from east and west. and after the geatest moon is visible from 8:50 pm.
this image from reynold chong.