. This is a new popup window - close it when you are done . Submitted by John Blomquist on 05/27/2007 16:14:54 . Moon Feature-аа"Straight Wall" . Taken 25 May '07 with a to-u-cam and Tak FS-128 from Westford. The straight wall, "Rupes Recta" is slightly above the doublet crater at bottom center of this picture and a little below a similar sized crater. Logon to post a follow-up comment or review comments from others . Copyright (c) Amateur Telescope Makers of Boston, Inc. About Us Contact Us

Astronotes Armagh Planetarium's Stellar Blog! ... This image combines orbital imagery with 3-D modelling to show flows that appear in spring and summer on a slope inside Mars' Newton crater. ... Warm season flows on a slope in Newton Crater, possible evidence of salty liquid water active on Mars today. Image credit: NASA) . ... Frozen water is common on and under the surface of Mars but these images are the best evidence to date for the presence of liquid water on the Martian surface today. ...

... Home Observing-Events WP_20130708_011_edited-1 . ... Lecture Series 2014-2015 . ... AAA Fall Astronomy Class: Astronomy Basics тАУ October-November 2015 . ... This Month's Sky . ... This Month's Sky - 2015 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

... Ciel Espace, le magazine qui vous guide toujours plus loin . ... les plus belles images de l'Univers d†йcrypt†йes pour vous . ... 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 Vid†йo: comment Huygens a rebondi sur Titan . ... Pour en savoir davantage sur ce satellite de la plan†иte Saturne, †йcoutez le podcast " Sous les brumes de Titan " sur le site Ciel et Espace Radio . ...

In this gallery are many images of Low Surface Brightness Galaxies which have recently been discovered and analyzed. ... The central surface brightness of this galaxy is 24.28 . Malin 2 This galaxy is another huge disk galaxy with a scale length of 15 kpc and a redshift of 15000 km/a. The high surface brightness knot in one of its spiral arms actually has the same color, luminosity and H-alpha equivalent width as the entire Large Magellanic Cloud . ... Truly it is a Low Surface Brightness Galaxy. ...

http://hea-www.harvard.edu/ AstroStat / slog /2007/on-the- unreliability -of- fitting / Weaving together Astronomy+Statistics+Computer Science+Engineering+Intrumentation, far beyond the growing borders Fri, 01 Jun 2012 18:47:52 +0000 hourly 1 http://wordpress.org/?v=3.4 http://hea-www.harvard.edu/ AstroStat / slog /2007/on-the- unreliability -of- fitting /comment-page-1/#comment-44 Jeff Scargle Tue, 10 Jul 2007 18:42:49 +0000 http://hea-www.harvard.edu/ ...

... Ж.Ф. Родионова, А.А.Карлов, Т.П. Скобелева и др. ... Sternberg State Astronomical Institute, 119899, Moscow, Russia; jeanna@sai.msu ru. ... Moscow State University, Vorobjovy Gory, 119899, Moscow, Russia. Brown University - Vernadsky Institute Microsymposium 34, October 8-9, 2001, Moscow, Russia . ... Rodionova J1., ... Sternberg State Astronomical Institute, Moscow University, jeanna@sai.msu.ru . ... 1 Sternberg State Astronomical Institute Lomonosov Moscow University, Russia; marss8@mail.ru . ...

ATM Forum Message . ... Post . ... Testing Convex Surfaces. ... Post Message | ... There are several ways to test convex surfaces. You can test through the glass. ... Next is making a test plate and doing the convex measurement just like doing two flats against each otehr. ... Next is using a larger lens to test the surface. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

Main Sections LabIR main page . Instrument page . ... Tirgo Page . Tirgo Archive . ... Actually, two observations of Z Cnc are available in our archive. ... The data show a well resolved stellar surface (diameter 0.00487?0.00018 arcseconds) and the possible presence of circumstellar emission at the level of few percent of the total flux. The second occultation was recorded at the ESO 3.6m with TIMMI at 10?m on Dec 11, 1995 in collaboration with H.U. Ka?fl (ESO) and B. Stecklum (Jena). ...

Журнал ПОВЕРХНОСТЬ публикует оригинальные статьи и обзоры по наиболее актуальным проблемам изучения поверхностных явлений. ... Редакция журнала 'Поверхность. ... Англоязычная версия журнала Journal of Surface Investigation . X-Ray, Synchrotron and Neutron Techniques выходит 6 раз в год . The Journal of Surface Investigation. X-ray, Synchrotron and Neutron Techniques ( Poverkhnost '. ... X-ray, Synchrotron and Neutron Techniques is abstracted and/or indexed in (Impact Factor 0.359): . ...

... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Site Info . ... It is from from Voyager 1 and shows a whopping big impact crater dominating the profile of the moon. Note that Mimas is about 400 kilometers across (about 250 miles). ... The wall around the crater is 5 kilometers high, and that central peak rises 6 kilometers above the surface (many impact craters have a large central peak which is caused by a pressure rebound from the impact). ... 2008 Phil Plait. ...

... The scheme for defining the background extraction region defined here is preliminary. ... The true PSF of the mirrors is approximately elliptical towards the edges of the field-of-view, therefore the best extraction region may be an ellipse rather than a circle, or better still a ``banana''. ... It would therefore generally be larger for brigher sources. ... For very crowded sources the best extraction region may not be circular (or ellptical), it may be a segment. ...

... Charles P. Conrad Jr 1930 1999 . ... Moon, Planets, and Rocket Trails . ... The Flame Nebula in Infrared . ... Fifteen hundred light years away towards the constellation of Orion lies a nebula which, from its glow and dark dust lanes, appears like a billowing fire. ... A Delta Rocket Launches . ... Barringer Crater on Earth . ... Neptune, the Solar System's outermost gas giant planet, is 30 times farther from the Sun than Earth. ... NGC 7789: Galactic Star Cluster . ... M80: A Dense Globular Cluster...

plots: . ... A 430 Mhz test feed was installed on carriage 1 for john mathew's to look into the 430 interferometer he wants to install. 4 cross scans on 3C286 were done on 12sep04 while the feed was 5 feet below the paraxial surface (the bottom of the carriage house was used as the reference).On 22 sep04 the feed was lowered about 3 feet and more tests were done. 4 cross scans were done on 3C286 using the test feed and 4 cross scans were done using the 430 Mhz linefeed (for comparison). ... 1.6 deg . ...

... There are several classifications of the exact methods. ... A more physical classification is that of Th.Wriedt (1998) where he devides the methods in 3 groups: Mie theory expansions (SVM), surface-based (PMM, EBCM, GMT, MoM) and volume-based (FDTDM, TLMM, FEM and various volume IEMs - CDM, DDA, etc.) methods. Features of the methods . Among the methods only SVM and EBCM are capable to provide very accurate results (5 and more correct decimals) (Mishchenko et al., 2000). ... 1998) Part. ...

Next: Additional information Up: Required observational data Previous: Timing information . Comments are so common, and so useful, that a 32-byte COMMENT column should be considered part of the basic data, even though it may be blank for the majority of the data. This field may be used to append comments to a particular observation, such as DOME IN THE WAY? ... The time field MJD_OBS should always be filled in, but the rest can remain undefined. ... Mon Jan 22 15:08:15 MET 1996 ...

... Authors: Spyros Basilakos (Imperial College London) . ... Title: Populating a cluster of galaxies - I. Results at z=0 . ... Title: The Merger Rate to Redshift One from Kinematic Pairs: Caltech Faint Galaxy Redshift Survey XI . ... Title: Multi-wavelength observations of an evolved galaxy group: An endpoint of galaxy merging? ... 23 matches for the search pattern galaxy merging . The URL for this page is: http://xxx.itep.ru/find/astro-ph/1/galaxy+merging/0/1/0/past,all/0/0 www-admin@xxx.lanl.gov ...

... HST . ... APT . ... HST Overview . Overview . ... Phase I Proposing . ... Cycle 24 Announcement . ... Phase II Cycle 23 . ... Documents . ... After you have brought up APT you will see a "Help" menu on the top menu bar. From here you can also bring up the documents that will help you to learn APT. Phase I: You can bring up Phase I Specific APT Training Materials to learn about using APT to submit your Phase I proposal. ... These are the same documents you will find on the HST Website. ...

image collection >> physical phenomena >> vortices . Image env0505282016Gda . ... May 28, 2005 at 20:16 GMT . South Batic Sea . Gulf of Gdansk . ... At the end of May, the sea surface is densely covered with filamentary slicks helping to disclose local dynamics pattern. In the image, the centre of the Gulf of Gdansk is occupied by an eddy dipole of about 70 km in diameter. ... Wind field from QuikScat at 18: 20 GMT . MODIS Aqua image at 11: 35 GMT . Image . ...

... Tonight's Sky . ... Mars . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Under the surface . ... M ars Express, a European Space Agency (ESA) spacecraft orbiting the Red Planet, used the Mars Advanced Radar for Subsurface and Ionospheric Sounding (MARSIS) to provide the first three-dimensional views beneath the Red Planet's surface. ... Only registered members of Astronomy.com are allowed to comment on this article....