... Super Moon vs Micro Moon . ... On that night, the smallest Full Moon of 2012 reached its full phase only about 4 hours before apogee , the most distant point from Earth in the Moon's elliptical orbit. Of course, earlier this year on May 6, a Full Super Moon was near perigee, the closest point in its orbit . The relative apparent size of November 28's Micro Moon (right) is compared to the famous May 6 Super Moon in these two panels, matching telescopic images from Bucharest, Romania. ...

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• Journal "Peremennye Zvezdy"
• Alpha Centauri: The Closest Star System

... 9a. Earth orbits Sun? . ... 10a. Scale of Solar Sys. ... If the mean distance of Earth from the Sun is 1 AU ("Astronomical Unit"), then that of Venus is 0.723 AU, of Mercury 0.387 AU and that of Mars is 1.524 AU. ... By noting (1) where on the Sun's disk is the crossing seen, (2) timing its duration at two far-apart points on Earth, and (3) comparing the times, one can calculate the distance to Venus and from it the scale of the solar system. ... One occurred in 1639--too early. ...

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• Comparing Masses Without Use of Gravity
• Energetic Particles
• Parallax

... On 27jan16 Felix and i found strong rfi coming from the turret control cabinet (huffman box in the gregorian receiver room). Checking the rfi gasket on the inside of the huffman box door, we found high impedance along the gasket (this was the old gasket with rubber impregnated with silver.. we've had problems before with this gasket material oxidizing.. ... start taking data with the huffman box closed, the turret powered on . ... Turn off all power to the turret control box. ...

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• cband stability with shutter closed

Gaspra . ... On October 29, 1991, Galileo came within 1,600 kilometers (1,000 miles) of Gaspra. ... These two color views of the asteroid Gaspra were produced by combining three images taken through violet, green, and infrared filters by the Galileo spacecraft on October 29, 1991, from a distance of about 16,000 kilometers (10,000 miles). ... The earliest view (upper left) was taken 5 hours, 45 minutes before closest approach when the spacecraft was 164,000 kilometers (102,000 miles) from Gaspra. ...

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• Educator's Guide to The Inverse Square Law

... Get the file name to create the difference file name . file _type,ext = os.path.splitext(os.path.basename( self.new_PRD_file )) results_ file = file _type + .dif if (len(self.dif_lis) 0): output = open(results_ file , w ) output.writelines(self.dif_lis) output.close() def compare_ file (self): Compare the new file with the old ... None): # Compare against installed reference PRD file. diff_util.compare_install_file(new_file, branch_name) elif (old_file != ...

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• Archive for December
• Python: module asyncore
• Terrestrial Silicates Compared to Astronomical Silicates

... 2015 January 29 . Close Encounter with M44 . ... Explanation: On Monday, January 26, well-tracked asteroid 2004 BL86 made its closest approach, a mere 1.2 million kilometers from our fair planet. ... The remarkably pretty telescopic field of view includes M44, also known as the Beehive or Praesepe star cluster in Cancer. Of course, its close encounter with M44 is only an apparent one, with the cluster nearly along the same line-of-sight to the near-earth asteroid. ... About APOD | ...

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• APOD: 2003 March 23 - Alpha Centauri: The Closest Star System
• APOD: 2011 July 3 - Alpha Centauri: The Closest Star System
• APOD: May 26, 1996 - Alpha Centauri: The Closest Star System

... SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . ... Accidental Astrophysics: The Devil's In the Magnitudes, Part II . ... The star second to the Sun in brilliance is Sirius. ... Recall the magnitude system, passed down to us through a hundred generations of sky watchers, as a means of quantifying stellar brightness ("Accidental Astrophysics," May/June, p. 9). ... Yes, it is a magnitude difference, but that difference is due to the distance between us and the star. ...

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• ASP: Biography of a Star: Our Sun's Birth, Life, and Death
• ASP: A Taste of Real Astronomy ? The ESA/ESO Astronomy Exercises
• ASP: The Nearest Stars: A Guided Tour

As the Universe expands, gravity pulls on the Universe, and slows the expansion down over time. As we look to great distances, we are looking back in time. If we can measure how fast the Universe is expanding in the past, and compare it to how fast it is expanding now, we can see the total gravitational effect of all matter in the Universe. Here we plot the distance between two galaxies as a function of time. ... Universes with lots of material . ...

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• Untitled1

These images show Pluto in the latest series of New Horizons Long Range Reconnaissance Imager (LORRI) photos, taken May 8-12, 2015, compared to LORRI images taken one month earlier. In the month between these image sets, New Horizons' distance to Pluto decreased from 68 million miles (110 million kilometers) to 47 million miles (75 million kilometers), as the spacecraft speeds toward a close encounter with the Pluto system in mid-July. ...

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• What are typical star-to-star distances in globular clusters compared to
• Closest, brightest supernova in decades is also a little weird | Astronomy.com
• Astronomers close in on cause of stellar explosions | Astronomy.com

... Bad Astronomy . ... Bitesize Astronomy . ... I always like it when I can mix the Bad and Bitesize astronomy into one topic. ... There is an email circulating the 'net about the full moon that will happen at 17:00 Universal Time December 22 nd of 1999. ... It says that the full moon which occurs on December 22 is also happening when the Moon is at perigee , or closest approach to the Earth. ... This small difference doesn't add up to much change in the brightness of the Moon though.] ...

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• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Bad News:
• Phil Plait's Bad Astronomy: Mad Science

... The hotter the gas, the faster they move, and the more energy each of them holds. The free ions and electrons in a plasma behave the same way. Knowing the temperature of the high atmosphere of Earth, or that of the Sun, we can calculate energies expected of ions and electrons found there. However, ions and electrons actually observed in space are often much , much more energetic, and may move at a respectable fraction of the velocity of light (300,000 km/sec or 186,000 miles/sec). ...

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• Parallax
• The Moon's Distance--Another Way
• Comet Shoemaker-Levy 9

Astropark Home . Solar System . ... The first part of the Astropark that most people see represents our own Solar System. The Sun and the nine main planets are laid out here, so that you can compare their distances and sizes. ... The Sun - the closest star to Earth, represented by a giant archway at the same scale as the planets beyond. ... They move in orbits around the Sun, also marked out in the Astropark. ... Comets - ghostly and occasional visitors to the inner Solar System. ... Sun . ...

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• Armagh Astropark
• Armagh Observatory
• The planetary conjunction of Venus and Jupiter at their closest | International

... First of all, you can obtain a map of the final coordinates of your objects and guide stars by using the command: PLOT/OPTOPUS [table] [label] [EW_flag] , . where [table] is the table output by REFRACTION/OPTOPUS . ... In order to avoid object misidentifications at a later stage, and for a cross identification between object identifiers and hole numbers, it is recommended to bring a printout of the table output created by the command REFRACTION/OPTOPUS to the telescope. ...

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• Column label: TUBETYPE
• Comparison using a multiresolution quality criterion
• Cosmology Tutorial - Part 2

... Submitted by Paul Benni on 11/27/2013 18:38:14 . Comet C/2013 R1 Lovejoy (November 8) . Morning image (Nov. 8) of Comet Lovejoy. ... C8 EdgeHD SCT with Hyperstar (f/2.1) and ST-8300C ccd. Image is uncropped from the Hyperstar setup. Compare to my Comet ISON image with the same image scaling. Interesting how much brighter and larger Comet Lovejoy is now compared to ISON. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Our Galaxy . ... Weird and Fun . ... It came from another galaxy: This artistтАЩs impression shows HIP 13044 b, an exoplanet orbiting a star that entered our galaxy from beyond. ... HIP 13044 is one of tens of millions of stars in the тАЬHelmi streamтАЭ, stars that belonged to a dwarf galaxy consumed by our own Milky Way galaxy, some six to nine billion years ago. ... Tweets that mention ESO finds weird doomed planet from another galaxy | ...

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• Return to Comet Tempel 1 | Astronotes
• Kepler 36b and c: Too Close for Comfort | Astronotes
• Aldebaran: Red Giant at the Eye of the Bull | Astronotes

P.O. Box 797 Sonoita, AZ 85637-0797 June 19, 2000 Prof. David Chalmers Philosophy Department Room 213, Social Sciences Building University of Arizona Tucson, AZ 85721-0027 Dear Prof. Chalmers: Well, here's another one from Mr. At-Least-I-Thought-Of-It-Independently. ... So as a thought experiment, let's imagine that instead of having our matter transporter actually move matter, what it moves is information. ... That will make it necessary to move the matter to move consciousness. ...

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. You can use the diff command to compare the contents of two directories: diff directory1 directory2 . The information given by the command tells you what to do to make the directories match. If there is no difference between the directories you are returned to the shell prompt . diff reports if a file or directory is only to be found in directory1 or directory2 . It also reports any line by line differences for files that are common to each directory. Example .

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• Comparing files
• Comparing files under SCCS control
• Examples of comparing files with the sccsdiff command

... We compare our results with the GRANAT X-ray observations of the Galactic center (Churazov et al. ... It is instructive to compare our results for the Galactic center starburst with what might be expected for a continuous star formation, with the average rate characteristic for the whole Galaxy. For this continuous star formation model, we would expect to observe in the region of around the Galactic center about 10% of the total number of X-ray sources in the Galaxy. ...

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The Chi-Square Goodness of Fit Statistic . This statistic enables us to test whether observed frequencies are close to . those we would expect. ... Expected frequencies . ... For example, if we . have an honest die we would expect 1/6 of all cases to show any of . ... So, for example, if we roll a die 60 times we would expect : . ... If we actually roll a die 60 times we wouldn't expect each of the faces . ... times each face actually comes up is the observed frequency for that face. ...

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• http://zebu.uoregon.edu/messier/m31.txt
• http://zebu.uoregon.edu/51peg.html
• Comparing Means and Deviations

.

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• The Dreadful Beauty of Medusa | ESO
• Snow line distance compared to the Solar System | ESO
• Spiral shocks