... HST . ... APT . ... HST Overview . ... Phase I Proposing . ... Get Help . Please try these steps to test for and resolve communication problems with APT: . ... Click on the "Help" menu and select "Phase I Call for Proposals". ... But it is also possible that you need to go to "Edit" menu (or "APT" menu on Mac), click on "Preferences", select the "Network" tab and click on "Force HTTP". ... When you have finished these steps, you should be set up to use APT without any communication problems. ...

... Pre-university education . ... The NEICON consortium provides free test access to three platforms of electronic resources of McGraw-Hill Education company: . ... ACCESS ENGINEERING (www.accessengineeringlibrary.com ) is the largest platform in the area of technology and engineering science. It contains over 250 key items as well as interactive graphs, tables and video materials. ... ACCESS MEDICINE (www.accessmedicine.com) is the basic medicinal platform of McGraw-Hill Education. ...

M1 image More About M1 Nice Color Picture . ... M16 image More About M16 HST image . ... M31 image More About M31 Nice Color Picture . ... M42 image ; M43 image More About M42/43 Nice Color CCD Picture . M51 image More About M51 Color Image of M51 M51 Supernova . M57 image More About M57 Nice Color CCD Picture Very Deep M57 Image . ... M81 image More About M81 M81 Supernova Ultraviolet Image of M81 More about Ultraviolet Imaging . M82 image More About M82 M82 False Color M82 True Color . ...

... Tonight's Sky . тАФ . ... RISE тАФ . SET тАФ . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . We test Denkmeier's 3-D eyepieces . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The first test of Einstein's gravity . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

... click image to view discuss) . ... Submitted by Paul Valleli on 06/21/2007 00:15:41 . ... ITEAMS 1st Light (for Paul) . At the end of October '09, I got access to the robotic telescopes of the ITEAMS project - a 5-inch automatic scope with cooled CCD detector. ... Submitted by Paul Valleli on 11/03/2009 10:52:59 . ... Paul at the Air Space Museum of the Strategic Air Command, Ashland NE . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

... Gravitational microlensing of giant luminous arcs: . a test for compact dark matter in clusters of galaxies . ... This paper discusses a new test for the detection of stellar mass compact dark matter in galaxy clusters by observing its gravitational lensing influence on the surface brightness of giant luminous arcs. ... With the advent of the Next Generation Space Telescope, cluster dark matter in the form of compact objects will induce a ubiquitous `shimmering' of the giant arcs. ... Giant Arcs . ...

... Science . ... Science Users Information > Observing Facilities > Instrumentation Development . ... Science Users Information . ... La Silla Paranal Observatory . ... Paranal Instrumentation . Decommissioned Instruments . ... VLT/VLTI Science Verification . ... ESO exercises strict control over the interfaces between the VLT observatory and its instruments. ... The instruments below are now maintained (and documented on the ESO web) by the Directorate of Operations/La Silla Paranal Observatory: . ...

... The XPA messaging system provides seamless communication between many kinds of Unix programs, including X programs and Tcl/Tk programs. It also provides an easy way for users to communicate with XPA-enabled programs by executing XPA client commands in the shell or by utilizing such commands in scripts. ... A program becomes an XPA-enabled server by defining named points of public access through which data and commands can be exchanged with other client programs (and users). ... XPA User Programs . ...