Astronomy Picture of the Day

    Discover the cosmos! Each day a different image or photograph of our
      fascinating universe is featured, along with a brief explanation
                    written by a professional astronomer.

                                2020 March 23

                   From the Pleiades to the Eridanus Loop
                  Image Credit & Copyright: Hirofumi Okubo

   Explanation: If you stare at an interesting patch of sky long enough,
   will it look different? In the case of Pleiades and Hyades star
   clusters -- and surrounding regions -- the answer is: yes, pretty
   different. Long duration camera exposures reveal an intricate network
   of interwoven interstellar dust and gas that was previously invisible
   not only to the eye but to lower exposure images. In the featured wide
   and deep mosaic, the dust stands out spectacularly, with the familiar
   Pleaides star cluster visible as the blue patch near the top of the
   image. Blue is the color of the Pleiades' most massive stars, whose
   distinctive light reflects from nearby fine dust. On the upper left is
   the Hyades star cluster surrounding the bright, orange, foreground-star
   Aldebaran. Red glowing emission nebula highlight the bottom of the
   image, including the curving vertical red ribbon known as the Eridanus
   Loop. The pervasive dust clouds appear typically in light brown and are
   dotted with unrelated stars.

                  Almost Hyperspace: Random APOD Generator
                   Tomorrow's picture: black hole shredder
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       Authors & editors: Robert Nemiroff (MTU) & Jerry Bonnell (UMCP)
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