Search results
Results From The WOW.Com Content Network
It, too, has nebulosity in the east. Collinder 421 is a particularly old open cluster at an age of approximately 1 billion years; it is of magnitude 10.1. 3100 light-years from Earth, more than 30 stars are visible in a diameter of 8 arcseconds. The prominent star in the north of the cluster has a golden color, whereas the stars in the south of ...
1 Cassiopeiae is a single [10] star in the northern constellation of Cassiopeia, located around 1,130 light years from the Sun. [1] It is visible to the naked eye as a faint, blue-white hued star with an apparent visual magnitude of +4.84. [2] This object is moving closer to the Earth with a heliocentric radial velocity of −9 km/s. [2]
Stars in constellations can appear near each other in the sky, but they usually lie at a variety of distances away from the Earth. Since each star has its own independent motion, all constellations will change slowly over time. After tens to hundreds of thousands of years, familiar outlines will become unrecognizable. [13]
It has been reported to show eclipses of less than 0.1 magnitudes with a period of 2 years and 1 month., [23] but this has never been confirmed. It is 99.4 ± 0.4 light-years from Earth. [ 17 ] Delta Cassiopeiae was the star used by Jean Picard in 1669 to establish the length on the Earth's surface corresponding to one degree, and hence the ...
All stars but one can be associated with an IAU (International Astronomical Union) constellation. IAU constellations are areas of the sky. Although there are only 88 IAU constellations, the sky is actually divided into 89 irregularly shaped boxes as the constellation Serpens is split into two separate sections, Serpens Caput (the snake's head) to the west and Serpens Cauda (the snake's tail ...
It has since become a variable star fluctuating between 2.0 and 1.6. [5] This means that at its brightest it is the second brightest star in Scorpius. Stars of the constellation by distance (red-green 3D view) and the brightness of each star (star size) U Scorpii is the fastest known nova, with a period of about 10 years. [6]
These names of stars that have either been approved by the International Astronomical Union or which have been in somewhat recent use. IAU approval comes mostly from its Working Group on Star Names, which has been publishing a "List of IAU-approved Star Names" since 2016. As of April 2022, the list included a total of 451 proper names of stars. [1]
The constellations along the ecliptic are called the zodiac. When explorers mapped the stars of the southern skies, European astronomers proposed new constellations for that region, as well as ones to fill gaps between the traditional constellations. Because of their Roman and European origins, every constellation has a Latin name.