Image/Video Credit: Rongpu Zhou

Dusk to Dawn time-lapse at CTIO

While observing for the DECam Legacy Survey (DECaLS), Rongpu Zhou (University of Pittsburgh) set up a camera to capture a time-lapse of the evening. For the first 18 seconds of the video, the moon illuminates the foreground as if it were daylight, while the night sky rotates overhead. As the moon sets, many more stars become visible, and our galaxy, the Milky Way, rises as the Magellanic Clouds set behind the Blanco 4m Telescope. The time-lapse was taken on 4 March 2017.

Click the image to view the time-lapse and to see more options.

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

  • GLOBE at Night Join the international star-hunt campaign, Globe at Night, March 20-29. Use a smart phone to submit sky brightness in real time! Visit

  • Students from six Tucson high schools recently built Galileoscopes as part of the MathMovesU program, led by Raytheon, the UA Early Academic Office NOAO and the TAAA.

  • 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?”

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