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Active. Astronomy Picture of the Day ( APOD) is a website provided by NASA and Michigan Technological University (MTU). It reads: "Each day a different image or photograph of our universe is featured, along with a brief explanation written by a professional astronomer ." [ 1] The photograph does not necessarily correspond to a celestial event ...
The North America Nebula covers a region more than ten times the area of the full moon, but its surface brightness is low, so normally it cannot be seen with the unaided eye. Binoculars and telescopes with large fields of view (approximately 3°) will show it as a foggy patch of light under sufficiently dark skies.
Robert J. Nemiroff is an Astrophysicist and Professor of Physics at Michigan Technological University. He received his Ph.D. from the University of Pennsylvania in Astronomy and Astrophysics in 1987 and his B.S. from Lehigh University in Engineering Physics in 1982. [1] He is an active researcher with interests that include gamma-ray bursts ...
The California Nebula ( NGC 1499/ Sh2 -220) is an emission nebula located in the constellation Perseus. Its name comes from its resemblance to the outline of the US State of California in long exposure photographs. It is almost 2.5° long on the sky and, because of its very low surface brightness, it is extremely difficult to observe visually.
Helix Nebula. The Helix Nebula (also known as NGC 7293 or Caldwell 63) is a planetary nebula (PN) located in the constellation Aquarius. Discovered by Karl Ludwig Harding, most likely before 1824, this object is one of the closest of all the bright planetary nebulae to Earth. [ 3] The distance, measured by the Gaia mission, is 655±13 light ...
The Fox Fur Nebula is a nebula (a formation of gas and dust) located in the constellation of Monoceros (the Unicorn) not far off the right arm of Orion and included in the NGC 2264 Region. In the Sharpless catalog it is number 273. The image is a close-up of a small section of a much larger complex, generally known as the Christmas Tree cluster.
IC 342 (also known as Caldwell 5) is an intermediate spiral galaxy in the constellation Camelopardalis, located relatively close to the Milky Way.Despite its size and actual brightness, its location behind dusty areas near the galactic equator makes it difficult to observe, leading to the nickname "The Hidden Galaxy", [4] [1] though it can readily be detected even with binoculars. [5]
The Engraved Hourglass Nebula (also known as MyCn 18[ 2]) is a young planetary nebula in the southern constellation Musca. It was discovered by Annie Jump Cannon and Margaret W. Mayall during their work on an extended Henry Draper Catalogue (the catalogue was built between 1918 and 1924). At the time, it was designated simply as a small faint ...