... Armagh Observatory, 24th March 2009: The International Space Station ( ISS ) has recently become the second brightest object in the night sky тАФ even brighter than the planet Venus, and second only to the Moon. Evenings will provide the chance of a spectacular view, if the sky is clear, as for the next few days the orbit of the ISS around the Earth repeatedly takes it over Ireland. ... At its best, it is now the second brightest object in the night sky. ...

Еще в разделе: (Показать все результаты (>2664) - star.arm.ac.uk/ )

• International Space Station
• ISS passes over Ireland | International Year of Astronomy in Ireland |
• Armagh Observatory

Various types of stars have dust around them. In the well known case of the Pleiades the dust around the stars is unrelated to the stars, and is instead dust from an interstellar cloud that the Pleiades cluster has drifted into on its way through the galactic disk. ... The dust in interstellar space is observed in a variety of ways: due to its passive absorption of starlight ("extinction"), by its production of polarization in starlight, and then at long wavelengths due to its thermal radiation. ...

Еще в разделе: (Показать все результаты (>12774) - www.stsci.edu/ )

• NICMOS Data Handbook
• JWST Passes TNAR

... Discovered less than two months before, Comet C/1996 B2 Hyakutake came within only 1/10th of the Earth-Sun distance from the Earth in late March. ... Pictured above near closest approach as it appeared on 1996 March 26, the long ion and dust tails of Comet Hyakutake are visible flowing off to the left in front of a distant star field that includes both the Big and Little Dippers . ... Publications with keywords: comet Hyakutake - comet tail . Publications with words: comet Hyakutake - comet tail . ...

Еще в разделе: (Показать все результаты (>110242) - www.astronet.ru/ )

• Comet Hale-Bopp Passes M14
• Астронет > Comet Hale-Bopp Passes M14
• XWare > APOD

Astronotes Armagh Planetarium's Stellar Blog! ... Colin Johnston . ... Milky Way . Stars . ... Monthly Sky Notes . ... June . ... This red supergiant is the brightest star in the constellation Scorpius and is of awesome size. ... Returning to Vega (which will be the pole star in about 12 000 years from now), follow an imaginary line between it and Arcturus, this line will cross two more constellations, faint and sprawling Hercules and that celestial smile Corona Borealis. ...

Еще в разделе: (Показать все результаты (>2810) - www.armaghplanet.com/ )

• Rings Around an Asteroid | Astronotes
• A Summer Night?s Stargazing | Astronotes
• Astronomy FAQs

... November 12, 1996 . Comet Hale-Bopp Passes M14 . ... Explanation : Comet Hale-Bopp continues its slow trek across the night sky, and can now be seen superposed near the bright globular cluster M14 . Will Comet Hale-Bopp become as bright in early 1997 as Comet Hyakutake did in early 1996? It is still too early to tell. ... Because of the size of coma , some speculate that the nucleus of Hale-Bopp is unusually large. ... Tomorrow's picture: Seven Jets from Comet Hale-Bopp . ... About APOD . ...

Еще в разделе: (Показать все результаты (>7818) - www.arcetri.astro.it/ )

• A collection of images
• A Bright Ring Of Star Birth Around A Galaxy's Core (PR98-21)
• Passing file descriptors to the kernel

... 2009 December 16 . Comet Hyakutake Passes the Earth . ... Explanation: In 1996, an unexpectedly bright comet passed by planet Earth. Discovered less than two months before, Comet C/1996 B2 Hyakutake came within only 1/10th of the Earth-Sun distance from the Earth in late March. At that time, Comet Hyakutake, dubbed the Great Comet of 1996 , became the brightest comet to grace the skies of Earth in 20 years. ... New Mirror: APOD now available in Romanian from Romania . ... About APOD | ...

Еще в разделе: (Показать все результаты (>5176) - www.sai.msu.su/ )

• APOD: 2001 December 24 - Asteroid 1998 WT24 Passes Near Earth
• APOD: 2010 October 26 - Comet Hartley Passes a Double Star Cluster
• APOD: 2011 September 3 - Comet Garradd Passes Ten Thousand Stars

... In temperate latitudes, this is a good time to see halos formed by clouds of ice crystals high in the atmosphere where the temperature is always well down below -30 deg. ... The most prominent halos, however, appear quite close to the sun where it can be uncomfortably bright to look. ... In a sense, halos are like rainbows, glories and coronae in that they require the presence of a bright source of light, the Sun or the Moon, and water floating in the air. ...

Еще в разделе: (Показать все результаты (>16871) - www.eso.org/ )

• Los Cielos de Am , The darkest sky and the two galactic hemispheres
• Wide-field view of the sky around the bright star cluster NGC 3532
• Wide-field view of the sky around the bright star cluster IC 4651

... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...

Еще в разделе: (Показать все результаты (>41) - www.tesis.lebedev.ru/ )

• Project's diary

... The damage to NIFS has freed up the RSAA instrumentation team to concentrate on the timely delivery of the Gemini South Adaptic Optics Imager (GSAOI). ... GSAOI is the second instrument that ANU is building for Gemini. ... GSAOI Website: http://www.mso.anu.edu.au/gsaoi/ NIFS Website: http://www.mso.anu.edu.au/nifs/ RSAA Website: http://www.mso.anu.edu.au/ Australian Gemini Project Office Website: http://www.ausgo.unsw.edu.au/ Gemini Public Information Website: http://www.gemini.anu.edu.au/public/ . ...

Еще в разделе: (Показать все результаты (>609) - www.mso.anu.edu.au/ )

• C/2006 P1 (McNaught)
• Research Interests
• Stromlo - Guide to the Game

Calibration asp ects in the XMM-Newton Slew Survey Michael Freyb erg , MPE · Optical Loading · Pattern Pileup / Pseudo-MIPs · Internal FIFO overflows · Straylight / PSF · Background Michael Freyb erg MPE Garching XMM-Newton EPIC Calibration Meeting , MPE Garching , 04 May 2006 1 XMM-Newton Slew Survey: EPIC -pn · ... 918 ­ 952 CalClosed (first + last slew IDLE) Michael Freyb erg MPE Garching XMM-Newton EPIC Calibration Meeting, MPE Garching, 04 May 2006 19 ...

Еще в разделе: (Показать все результаты (>4204) - xmm.vilspa.esa.es/ )

• Home Page
• Bad pixels detection

ALBUM: gba @ SONG : Leave them all behind Leave Them All Behind Wheels turning around Into alien grounds Pass through different times Leave them all Behind Just to see We've got so far to go Until we get there Just let it flow Colours shining clear Fading into night Our grasp is broken There's nothing we can do I Don't care about the colours ... SONG: BENEATH Rise above the rain, For all our sins we're not to blame, This time will pass away not yours or mine. ...

Еще в разделе: (Показать все результаты (>5366) - crydee.sai.msu.ru/ )

• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/p/pink.floyd/ummagumma
• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/c/clark.anne/unstill.life
• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/r/rollins.band/wartime

Large sunspots were occasionally seen far in the past without any instruments, when the sun was dimmed by thick haze, but not much was remembered of those observations. ... Sunspot Cycle (1850 - 1975) . One who was greatly influenced by Schwabe's discovery was an English gentleman of independent means, Richard Christopher Carrington , who devoted himself to the study of sunspots. ... Carrington had seen a flare, of the rare variety that is visible in white light (only about 50 are known). ...

Еще в разделе: (Показать все результаты (>601) - www.iki.rssi.ru/ )

• The Sky Above Us
• Close-up of the Aurora
• Comet Shoemaker-Levy 9

... The twilight zone is not just an old television series. ... Most places on Earth pass through the twilight zone twice a day; the result is an enchanting hour at dawn and dusk of low sunlight and long shadows. ... Before assigning your students to watch a sunrise or sunset, have them try the following activities to develop their global sense. ... Armed with a global sense of our spinning planet, go out to watch the sky as your part of the Earth moves through the twilight zone. ...

Еще в разделе: (Показать все результаты (>1146) - www.astrosociety.org/ )

• ASP: Stellar Evolution (a la Chez Stella)
• ASP: This Restless Globe
• ASP: Miranda: A Jigsaw Puzzle World

Wave Model for light Electromagnetic Wave What Happens to the Wave When it Encounters the Small Opening? ... Diffraction: Bending of light when it passes around a sharp obstacle or through a narrow slit. ... Constructive interference occurs when waves reinforce each other (as at point A above). ... Diffraction Grating has many narrow "slits". ... Both light waves arrive in phase. ... If light waves 1 and 2 arrive at the eye in phase (constructive interference), then you see a bright reflection. ...

Еще в разделе: (Показать все результаты (>3581) - hea-www.harvard.edu/ )

• http://hea-www.harvard.edu/~pgreen/figs/mcgraw1.ps
• dictionary
• Spatial Region Boundaries

This is a new popup window - close it when you are done . Submitted by Robert Halstead on 06/30/2015 23:19:35 . Planets Passing in the Night, June 30, 2015 . ... Captured using my Canon 6D at the prime focus of my 8-inch f/10 Celestron Schmidt-Cassegrain telescope. ISO 1600, 0.6 seconds for the image at the left; and ISO 400, 1/50 second for the image at the right. Images captured between 8:57 and 9:02 pm EDT on June 30, 2015. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

Еще в разделе: (Показать все результаты (>66425) - www.atmob.org/ )

• Astronomy and the Human Eye

... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... It's semi-common knowledge that stars twinkle and planets don't. By semi-common, I mean that a lot of folks know that, but I also mean it isn't strictly true. Stars twinkle because we see them from the bottom of a sea of air. ... These small bundles of air act like little lenses, bending light as it passes through them. ... What we see is the light from the star flickering. ...

Еще в разделе: (Показать все результаты (>377) - www.badastronomy.com/ )

• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Bad News:
• Phil Plait's Bad Astronomy: Bad TV

... The 430 carriage house transmitter was used on two dates to measure the temperatures while the swarm a,b satellite flew through the beam: . tle computation used: . ... 2014.03.22 20:21:50 (utc) . ... compute power for each height sample dynamic spectra of overpass (.gif) . ... vertical scale (time hours utc) 1 second resolution (i averaged 100 ipps together after computing power) . ... I used the predict program (and some idl software) to plot the satellite pass around 8:00 utc on 26mar14 . ...

Еще в разделе: (Показать все результаты (>2790) - www.naic.edu/ )

• aug08_lbwcals
• sep08_lbwcals
• RFI Issues at AO

Isaak Newton (1642 - 1727). ... During 1665 - 1667 Newton made his three main discoveries: the method of fluxings and quadratures (differential and integral calculus, explanation of the light nature and the law of gravitation). ... In 1668 Newton built the first reflecting telescope. The big lens telescope gave indistinct image with painted edges. ... The scientist considered this problem indisolved and suggested a mean against chromatic aberration: a mirror must be used instead of objective lens. ...

Еще в разделе: (Показать все результаты (>69) - www.space.vsi.ru/ )

• yeare
• scorpione
• redkoste

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... des pages consacr†йes †а la publication de vos photos Mais c'est aussi une vraie communaut†й avec laquelle partager votre passion et nourrir votre curiosit†й. Accueil Le monde entier regarde V†йnus passer devant le Soleil . ... Hier soir, †а New York, les curieux scrutaient le ciel dans l'espoir qu'une †йclaircie leur laisse entrevoir V†йnus devant le Soleil. ... Transit et Soleil de minuit . ...

Еще в разделе: (Показать все результаты (>2632) - www.cieletespace.fr/ )

• LтАЩUnivers a-t-il besoin de Dieu ? | Ciel et Espace

You Can Make Stellar Images Brighter . Articles | ... A few months ago I wrote an article titled "You Can’t Make Them Brighter". So why am I now writing that you can make them brighter. ... The image of a focused star is actually a small disk called the Airy disk, named after the 19 th century scientist Sir George Airy. ... For a given aperture, a smaller Airy disk means that the light is focused to a smaller disk and is therefore brighter. ... www.astronomy.net . About Astronomy Net | ...

Еще в разделе: (Показать все результаты (>491) - www.astronomy.net/ )

• Observation Report From Coyle 07/19/03 - an Astronomy Net Observation_reports
• Summer Triangle - an Astronomy Net Article
• For The Record...."vague Denials And Buck-passing?" - an Astronomy Net