Image Credit: Alexandra Angelich (NRAO/AUI/NSF)

Meet “DeeDee”, a Distant Dwarf in the Outer Solar System

Located 92 AU from the Sun, DeeDee is the second most distant trans-Neptunian object known — only the dwarf planet Eris is further away. Discovered in the Dark Energy Survey, which is being carried out at CTIO, DeeDee is petite, with a diameter ¼ that of Pluto. DeeDee was discovered by an international team, including NOAO astronomers Alistair Walker and Tim Abbott.

Read more in the NRAO Press Release.

  • Dusk to Dawn time-lapse at CTIO. Watch the Milky Way rise as the Magellanic Clouds set behind the Blanco 4m. Taken by Rongpu Zhou while observing for DECaLS on 4 March 2017.

  • The March 2017 NOAO Newsletter contains sections on Science Highlights, Community Science & Data, System Observing: Telescopes and Instruments, and NOAO Operations & Staff.

  • Protecting Dark Skies for Astronomy and Life. NOAO, in partnership with other concerned organizations, convened a workshop at the AAS meeting to showcase successful strategies for reducing light pollution.

  • NOAO announces with sorrow the death of Dr. Vera Rubin. Her observations at the KPNO 2.1-m provided compelling evidence for Dark Matter. She will be greatly missed by the entire NOAO staff.

  • DECam Legacy Survey Announces Third Data Release: reduced images and source catalogs covering between 4000 and 8000 square degrees of sky in three wavelength bands have been released.

  • A recent community-based study takes a science-driven look at the question “What supporting OIR capabilities will be needed to maximize the science enabled by the LSST?”

  • Pluto Spray Paints its Moon Red: “Mordor Macula” gets its color from methane gas escaping Pluto & freezing on Charon. NOAO astronomer Tod Lauer is a member of the team reporting this result.

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