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Skip to main content Submit keywords Search the site Columbia University in the City of New York Toggle search Astronomy & Astrophysics Toggle search MAIN NAVIGATION EXPANDED * About * People * Academics * Research * Events * Administration * About Us * News * Find Us * Contact Us * Support Us * Equal Opportunity * Faculty * Grad Students * Research Scientists * PostDocs & PostBacs * Staff * Former Grad Students * Department of Astronomy * Courses * Facilities * Graduate * Admissions * Degree Requirements * Financial Aid * Housing * New York City * Undergraduate * About the Major * Requirements * Columbia College * Admissions * Labs * Blueshift Astronomy Club * Columbia Astrophysics Laboratory * Research Interests * Facilities * Computing * Collaborations * For Undergrads * Astro Tools * Publications * Colloquia * Seminars * Special Events * Informal Talks * Outreach * Big Apple Sky Calendar * Travel, Expense & Reimbursements * Purchasing * Grants * Hiring Astronomy & Astrophysics HOME IMAGE CAROUSEL WITH 4 SLIDES A carousel is a rotating set of images. Use the previous and next buttons to change the displayed slide 1. Slide 1: Astrofest 2023 2. Slide 2: 3. Slide 3: 4. Slide 4: Astrofest 2023 GALFA-HI survey Astrochemistry in the Savin Lab Previous Next UPCOMING EVENTS There are no upcoming events. More Colloquia More Seminars NEWS April 05, 2024 THE 2024 SOLAR ECLIPSE IS ON MONDAY! Head to Low Plaza to get your eclipse glasses. March 18, 2024 COLUMBIA UNIVERSITY GETS READY FOR THE ECLIPSE March 12, 2024 COLUMBIA LEADS JWST SEARCH FOR EXOMOONS More News FEATURED PUBLICATIONS NOT SO FAST KEPLER-1513: A PERTURBING PLANETARY INTERLOPER IN THE EXOMOON CORRIDOR Daniel A. Yahalomi David Kipping David Nesvorný, et al. WHEN AND HOW RAM PRESSURE STRIPPING IN LOW-MASS SATELLITE GALAXIES ENHANCES STAR FORMATION Jingyao Zhu Stephanie Tonnesen Greg L. Bryan DETECTING SOLAR SYSTEM ANALOGS THROUGH JOINT RADIAL VELOCITY/ASTROMETRIC SURVEYS Daniel A. Yahalomi Ruth Angus David N. Spergel Daniel Foreman-Mackey THE KINEMATIC STRUCTURE OF MAGNETICALLY ALIGNED H I FILAMENTS Kim, Doyeon A. Clark, S. E. Putman, M. E. Li, Larry THE UNIVERSAL TIMEKEEPERS: RECONSTRUCTING HISTORY ATOM BY ATOM David J. Helfand GREEN BANK TELESCOPE DISCOVERY OF THE REDBACK BINARY MILLISECOND PULSAR PSR J0212+5321 Karen I. Perez Slavko Bogdanov Jules Halpern Vishal Gajjar LINEAR ANALYSIS OF THE KELVIN–HELMHOLTZ INSTABILITY IN RELATIVISTIC MAGNETIZED SYMMETRIC FLOWS Anthony Chow Michael E. Rowan Lorenzo Sironi Jordy Davelaar Gianluigi Bodo Ramesh Narayan More Publications BIG APPLE SKY CALENDAR Date Jul 1 Event Mars and Venus are very close together, visible low in the evening sky 40-50 minutes after sunset, staying there for around a week before being swallowed by the solar glare around the month’s end Date Jul 3 Event Full Buck Moon, directly opposite the Sun, as full Moons always are, and since the noontime summer Sun is as high as it ever gets, the midnight full Moon is as low as it ever gets, just 25 degrees above the horizon Date Jul 6 Event Earth at aphelion, 1.017 AU (95 million miles) from the Sun, as distant as it ever gets Date Jul 9 Event Last quarter Moon and solar observing (open to the public) at Pioneer Works, from 1-4 pm, at 159 Pioneer Street in Brooklyn Date Jul 10-13 & 28-29 Event Excellent overpasses of NYC by the International Space Station (ISS); on each occasion, the object first appears low in the west, then moves roughly overhead three minutes later, and then disappears roughly in the east another three minutes later--starting times: Jul 10, 10:12:55 pm EDT; Jul 11, 9:20:26 pm; Jul 12, 10:12:16 pm; Jul 13, 9:20:26 pm; Jul 28, 9:51:12 pm; Jul 29, 9:01:09 pm Date Jul 14 & 28 Event From 8-10 pm, weather permitting, the New York Amateur Astronomers Association will hold a telescopic observing session at Lincoln Center (near the fountain) Date Event Jul 1Mars and Venus are very close together, visible low in the evening sky 40-50 minutes after sunset, staying there for around a week before being swallowed by the solar glare around the month’s endJul 3Full Buck Moon, directly opposite the Sun, as full Moons always are, and since the noontime summer Sun is as high as it ever gets, the midnight full Moon is as low as it ever gets, just 25 degrees above the horizonJul 6Earth at aphelion, 1.017 AU (95 million miles) from the Sun, as distant as it ever getsJul 9Last quarter Moon and solar observing (open to the public) at Pioneer Works, from 1-4 pm, at 159 Pioneer Street in BrooklynJul 10-13 & 28-29Excellent overpasses of NYC by the International Space Station (ISS); on each occasion, the object first appears low in the west, then moves roughly overhead three minutes later, and then disappears roughly in the east another three minutes later--starting times: Jul 10, 10:12:55 pm EDT; Jul 11, 9:20:26 pm; Jul 12, 10:12:16 pm; Jul 13, 9:20:26 pm; Jul 28, 9:51:12 pm; Jul 29, 9:01:09 pmJul 14 & 28From 8-10 pm, weather permitting, the New York Amateur Astronomers Association will hold a telescopic observing session at Lincoln Center (near the fountain) View Full Calendar Department of AstronomyColumbia University, Mail Code 5246, 538 West 120th Street, Pupin Hall, Rm 1328 · New York, NY 10027 Columbia Astrophysics LaboratoryColumbia University, Mail Code 5247, 538 West 120th Street, Pupin Hall, Rm 1027 · New York, NY 10027 PHONE 212.854.3278 212.854.3257 * * * * * * Columbia University ©2024 Columbia University Accessibility Nondiscrimination Careers Built using Columbia Sites Back to Top Close Close Cookie Notice I AGREE This website uses cookies as well as similar tools and technologies to understand visitors' experiences. 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