for those who love astronomy, and for amateur astronomers. the star named albireo is also one of the most popular star hotspot in the autumn night sky!, although the star has magnitudes of about +3.8, albireo is one the many stars of constellation Cygnus (swan) with the best view from earth because of best combination of these double stars.
there are different colors of each one of theme albireo 1 has a color of orange star while the albireo 2 has color of blue star. the combination of two stars is very brilliant for amateur astronomers target object. if you are using telescope of at least 50 mm, albireo is clearly visible and obviously has different pair of colours. from about 380 light years away, albereo is lies within our milky way galaxy disk.
NAME : ALBIREO
MAGNITUDES : +3.1 & +5.1
DISTANCE : 380 LYS
CONSTELLATION : CYGNUS
R.A : 19 H 40 M
DECLINATION : +30° N
COLORS : ORANGE
Monday, August 19, 2019
The Universe is all of things and time[a] and their contents, including planets, stars, galaxies, and all other forms of matter and energy. While the spatial size of the entire Universe is unknown,it is possible to measure the size of the observable universe, which is currently estimated to be 93 billion light-years in diameter. In various multiverse hypotheses, a universe is one of many causally disconnected constituent parts of a larger multiverse, which itself comprises all of space and time and its contents.The earliest cosmological models of the Universe were developed by ancient Greek and Indian philosophers and were geocentric, placing Earth at the center. Over the centuries, more precise astronomical observations led Nicolaus Copernicus to develop the heliocentric model with the Sun at the center of the Solar System. In developing the law of universal gravitation, Isaac Newton built upon Copernicus' work as well as Johannes Kepler's laws of planetary motion and observations by Tycho Brahe.
Monday, August 5, 2019
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.