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Keywords: open cluster, asterism
![Скопление NGC 290: шкатулка с звездными драгоценностями](https://images.astronet.ru/pubd/2008/08/04/0001229005/ngc290_hst.preview.jpg)
3.08.2008
Jewels don't shine this bright -- only stars do. Like gems in a jewel box, though, the stars of open cluster NGC 290 glitter in a beautiful display of brightness and color. The photogenic cluster, pictured above, was captured recently by the orbiting Hubble Space Telescope.
![Далекое рассеянное скопление M103](https://images.astronet.ru/pubd/2001/02/07/0001166181/m103_kpno.preview.jpg)
7.02.2001
Bright blue stars highlight the open cluster known as M103. The gas clouds from which these stars condensed has long dispersed. Of the stars that were formed, the brightest, bluest, and most massive have already used up their nuclear fuel and self-destructed in supernova explosions.
![NGC 7129 и NGC 7142](https://images.astronet.ru/pubd/2007/09/14/0001223462/n7129n7142_hallas_c786.preview.jpg)
13.09.2007
This alluring telescopic image looks toward the constellation Cepheus and an intriguing visual pairing of dusty reflection nebula NGC 7129 (left) and open star cluster NGC 7142. The two appear separated by only half a degree on the sky, but they actually lie at quite different distances.
![Рассеянное звездное скопление M7 в Скорпионе](https://images.astronet.ru/pubd/2009/11/08/0001236858/m7_atalasidis.preview.jpg)
8.11.2009
M7 is one of the most prominent open clusters of stars on the sky. The cluster, dominated by bright blue stars, can be seen with the naked eye in a dark sky in the tail of the constellation of the Scorpion (Scorpius).
![Рассеянные звездные скопления M35 и NGC 2158](https://images.astronet.ru/pubd/2002/11/29/0001181080/m35_noao.preview.jpg)
29.11.2002
Open clusters of stars can be near or far, young or old, and diffuse or compact. Open clusters may contain from 100 to 10,000 stars, all of which formed at nearly the same time. Bright blue stars frequently distinguish younger open clusters.
![Рассеянные звездные скопления M35 и NGC 2158](https://images.astronet.ru/pubd/2003/12/15/0001195582/m35_cfht.preview.jpg)
15.12.2003
Open clusters of stars can be near or far, young or old, and diffuse or compact. Open clusters may contain from 100 to 10,000 stars, all of which formed at nearly the same time. Bright blue stars frequently distinguish younger open clusters.
![Семь Сестер в пыли](https://images.astronet.ru/pubd/2007/04/13/0001221544/m45_spitzerR720.preview.jpg)
13.04.2007
Hurtling through a cosmic dust cloud a mere 400 light-years away, the lovely Pleiades or Seven Sisters star cluster is well-known in astronomical images for its striking blue reflection nebulae. At visible wavelengths...
![Плеяды и звездная пыль](https://images.astronet.ru/pubd/2009/10/14/0001236496/pleiades_andreo.preview.jpg)
14.10.2009
Have you ever seen the Pleiades star cluster? Perhaps the most famous star cluster on the sky, the Pleiades can be seen without binoculars from even the depths of a light-polluted city. Also known as the Seven Sisters and M45, the Pleiades is one of the brightest and closest open clusters.
![Дикая утка - рассеянное скопление M11](https://images.astronet.ru/pubd/2000/12/21/0001163938/m11_aat090.preview.jpg)
22.10.2000
Many stars like our Sun were formed in open clusters. The above open cluster, M11, contains thousands of stars and is just over three thousand light years distant. The stars in this cluster all formed together about 150 million years ago. The bright young stars in M11 appear blue.
![Рассеянное звездное скопление M11, "Дикая утка"](https://images.astronet.ru/pubd/2003/09/25/0001193343/m11_aat.preview.gif)
16.01.1996
Many stars like our Sun were formed in open clusters. The above open cluster, M11, contains thousands of stars and is just over three thousand light years distant. The stars in this cluster all formed together about 150 million years ago. The many bright stars in the cluster appear blue.
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