... September 02, 2009 - Solar activity hits a new low . The Sun has come all of one day away from breaking its record for the longest period of inactivity for the last decade - reaching a mid-summer low and falling into yet another state of 'hibernation'. ... Astrophysicists had to wait almost two months for this event: the group of sunspots occupying the last line of the catalogue (number 1024), vanished from the solar disk on 11 July this year. ... Solar activity hits a new low . ...

. Welcome to . Comet . Web server of . RadioAstronomy . Department . Sternberg Astronomical Institute . Moscow University . Questions and comments send to martis @ sai.msu.ru .

Winer Observatory P.O. Box 797, Sonoita, Arizona 85637-0797, USA . ... Site . Weather . Roof Status . ... Average Max. ... 0.0 . ... In 2004, the roof was operated manually, while in 2005 through 2007, it was operated automatically by computer, but was not closed by weather sensors. ... The "Closed" column includes those nights outside the Monsoon season when the Observatory was closed due to weather (the usual cause), equipment failures, or vacation by the Winer staff in 2004 through 2006. ...

Michael Strauss (Princeton University) has set up several mail servers for discussion of various aspects of the use of the 3.5-m telescope at APO. There is a mail server for each of the instruments, the telescope, and related computer hardware/software. A full description of the mail servers is available at the link listed below. To go directly to the mail server page choose the following link. Description of the APO Users Mail Servers . APO 3.5-m Mail Server Page . ...

... Bad Astronomy . ... Every few months, one of a series of questions comes up on the USENET group sci.astro involving tides, or the rotation of the Moon, or the recession of the Moon from the Earth. ... Why the Moon's rotation period is the same as the length of time it takes to orbit the Earth (same as number 1, but phrased differently). ... But when this happens, the time it takes for the Earth to rotate once will be slowed to exactly the same time it takes for the Moon to go around the Earth once! ...

... Home Lectures Lecture Series 2015-2016 . ... Lecture Series 2014-2015 . ... Beyond New York City . ... The Amateur Astronomers Association is proud to present an astronomy lecture series from October through May each year for our members and the public. ... Amateur Astronomer Association is pleased to announce we will be offering select, limited reserved seating for current AAA members for the Friday, January 8, 2015 AAA Lecture entitled Robert Nemiroff ?2015 Astronomy Picture of the Day?. ...

... ANU College of Physical & Mathematical Sciences . EXPLORE ANU . ... ANU College of . ... SEARCH . ... Search query . Search . Search query Search button . ... Search site search . Search RSAA . Search query Search . ... Contact us . ... Observatories . ... Home Observers Observing at RSAA SSO meteorological data . ... External Temperature [ C] . ... Updated: 19 November 2015 / Responsible Officer: Director, RSAA / Page Contact: RSAA Webmaster About this site . Contact ANU . ...

... SEARCH ASP SITE: Match ALL words Match ANY word . ... Comet Hyakutake wowed us this spring [see Guest Observer, May/June, p. 11]. ... The best time to observe a meteor shower is after midnight, as your nighttime location moves head-on into the path of the cometary debris. ... As observers, we are interested in the number of Perseids per time interval. ... Tabulate the number of meteors observed per interval, and make sure to label the table with the local time and date of each interval. ...