6 Minutes 42 Seconds . ... Credit Copyright: Babak Tafreshi ( TWAN ) Explanation: The July 22nd total solar eclipse was the longest of the 21st century . From the point of maximum eclipse along the Moon's shadow track across the Pacific Ocean, the Moon completely blocked the Sun for a total of 6 minutes and 39 seconds. But from the deck of this cruise ship the duration of the total eclipse phase was extended to a whopping 6 minutes and 42 seconds by the ship's motion along the shadow track. ...

... 2010 January 22 . Millennium Annular Solar Eclipse . ... Explanation: The Moon's shadow raced across planet Earth on January 15 . Observers within the central shadow track were able to witness an annular solar eclipse as the Moon's apparent size was too small to completely cover the Sun. A visually dramatic ring of fire , the annular phase lasted up to 11 minutes and 8 seconds depending on location, the longest annular solar eclipse for the next 1,000 years . ... About APOD | ...

adapted from Observe: Eclipses, published in 1979 by the Astronomical League and "Safe Solar Filters," by B. Ralph Chou, Sky and Telescope, August 1981) . ... Tape TWO pieces of film together into a sandwich, and tape this over the opening in the cardboard. ... The cardboard frame will act as a shade from the bright Sun, while you safely observe through the film sandwich. ... Undeveloped film is not safe. ... tape . ... At the end of one of the tubes, tape the aluminum foil, and make a tiny pinhole. ...

... First Contact Moon begins to move over Sun from West Starts at ~5:44:45 AM (about 10 minutes after sunrise) Must observe sun with filter! Good time to check and adjust mount tracking and alignment Watch for sunspots 6/21/ 2001 - Zambia ( Mario Motta ) First Contact Crescent images of Sun Natural pin-holes such as leaves on trees Pin-holes in cardboard Mario Motta Watch sky and environment Gradually darkens Temperature drops 8/11/1999 Hungary (Eric Pauer) ~1 min Before Second ...

... The following times are BST: Start oif Penumbral Phase (P1) Barely noticeable): 02h 05m 25s Start of Umbral Phase (U1): 03h 02m 51s Start of Total Phase: (U2) 04h 13m 49s Mid Eclipse: 04h 40m 10s End of Total Phase: (U3) 05h 06m 31s End of Umbral Phase (U4): 06h 17m 29s Duration of Totality is just 52 mt 42s, and the sky will be brightening with dawn twilight towards the end of totality, especially for observers in the North-east. ... 7° 00'; 225° End Totality 1° 48'; 232°. ... Terry Moseley . ...

Having studied the solar corona and its radio emissions sunspot cycles ago, I was keen to verify its existence optically during the total solar eclipse of Wednesday, 4 December 2002, the first on Australian soil since 1976. The moon's shadow was to travel from the south-Atlantic west of The Congo, across southern Africa, the Indian Ocean and into the Great Australian Bight, finally making Australian landfall at Ceduna, South Australia (SA). ... The favoured site to observe the eclipse was Ceduna. ...

... Posts tagged ?afterglow? ... Without an optical afterglow, a galaxy within the 2 arc second error region of a GRB x-ray afterglow is identified as a host galaxy; however confusion can rise due to the facts that 1. the edge of a galaxy is diffused, 2. multiple sources could exist within 2 arc second error region, 3.the distance between the galaxy and the x-ray afterglow is measured by projection, and 4. lensing causes increase of brightness and position shifts. ... ArXiv] GRB host galaxies, Aug. ...

DAILY REPORT #2433 PERIOD COVERED: 0000Z (UTC) 08/10/99 - 0000Z (UTC) 08/11/99 Daily Status Report as of 223/0000Z 1.0 ACTIVITIES SCHEDULED AND ACCOMPLISHED: 1.1 Completed STIS / CCD 8271 (A Snapshot Survey of LMC Planetary Nebulae: A Study of Nebular and Late Stellar Evolution) The Space Telescope Imaging Spectrograph ( CCD ) was used to ... This is to monitor the darks for the STIS CCD. The observations were executed as scheduled, and no anomalies were reported. ...