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    constellation Cassiopeia tagged posts

    Dying Stars Breathe Life into Earth: Study

    July 7, 2020, Categories  Astronomy/Space

    NGC 7789, also known as Caroline’s Rose, is an old open star cluster of the Milky Way, which lies about 8,000 light-years away toward the constellation Cassiopeia. It hosts a few White Dwarfs of unusually high mass, analyzed in this study.
    Credit: Guillaume Seigneuret and NASA

    As dying stars take their final few breaths of life, they gently sprinkle their ashes into the cosmos through the magnificent planetary nebulae. These ashes, spread via stellar winds, are enriched with many different chemical elements, including carbon.

    Findings from a study published today in Nature Astronomy show that the final breaths of these dying stars, called white dwarfs, shed light on carbon’s origin in the Milky Way.

    “The findings pose new, stringent constraints on how and when carbon was produce...

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    Sapphires and Rubies in the Sky

    December 20, 2018, Categories  Astronomy/Space


    Illustration of one of the exotic super-Earth candidates, 55 Cnc e, which are rich in sapphires and rubies and might shimmer in blue and red colors.
    Credit: Illustration Thibaut Roger

    Researchers have discovered a new, exotic class of planets outside our solar system. These so-called super-Earths were formed at high temperatures close to their host star and contain high quantities of calcium, aluminium and their oxides – including sapphire and ruby.

    21 light years away from us in the constellation Cassiopeia, a planet orbits its star with a year that is just three days long. Its name is HD219134 b. With a mass almost five times that of Earth it is a so-called “super-Earth...

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    Astronomers discover a Large Cavity around the Tycho’s Supernova

    August 23, 2016, Categories  Astronomy/Space

    Astronomers discover a large cavity around the Tycho's supernova

    The large-field WISE [12–4.6] µm infrared image around the Tycho’s supernova remnant (SNR). The red circle shows the position and size of the shell-like structure in the Tycho’s SNR, while the yellow dashed ellipse shows the cavity found in the MWISP CO images. The three white dashed lines are shown to guide the eye for the stream-like structures seen in the CO images. The white arrows mark the positions of the pillar-like structures found in the WISE image. Credit: Chen et al., 2016.

    Chinese astronomers have detected a large cavity existing around Tycho’s supernova, SN 1572, exhibiting stream-like structures. The findings show that the environments of the supernovae may be much more complicated than previously thought...

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