In general, open star clusters are found in the plane of our milky way galaxy, and contain anywhere from 100 to 10,000 stars all of which formed at nearly the same time. both open clusters m35 and ngc 2158 can be found together with a small telescope toward the constellation of the twins . An older and more compact open cluster, ngc 2158 , is at the lower right. ngc 2158 is four times more distant than m35 , over 10 times older, and much more compact with many more stars in roughly the same volume of space. ngc 2158's bright blue stars have self destructed, leaving cluster light to be dominated by older and yellower stars.
An older and more compact open cluster, ngc 2158, is visible above on the lower right. ngc 2158 is four times more distant that m35, over 10 times older, and much more compact as it contains many more stars in roughly the same volume of space. ngc 2158 's bright blue stars have self destructed, leaving cluster light to be dominated by older and. Contrastingly, ngc 2158, on the upper right, is four times more distant than m35 , over 10 times older, and much more compact. ngc 2158's bright blue stars have self destructed, leaving cluster light to be dominated by older and yellower stars. in general, open star clusters are found in the plane of our milky way galaxy, and contain anywhere. Open star clusters: m35 (bright blue stars) and ngc 2158 (faint red stars) telescope: william optics zenithstar 71mm f 5.9. camera: atik 314e ccd (read noise 5.3e , full well depth 13400e ) filters: optolong lrgb. mount: unitron model 152. Star clusters m35 and ngc 2158 explanation: clusters of stars can be near or far, young or old, diffuse or compact. the featured image shows two quite contrasting open star clusters in the same field.
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