... But most importantly, please allow convective surface currents to carry your visits away from the redzones ! Link to Past calendar of hotspot areas. ... Orbits . ... STIS anneal . 15 orbit ToO Map . 15 orbits . ... ACS anneal . ... likely ToO activation . ... 15 orbit ToO map . ... all SAA free orbits! ... ToO Activation likely . ... 10370 . ... ToO Activation likel . ...

Because they are so distant from Earth, Centaurs appear as pinpricks of light in even the largest telescopes. Saturn's 200 kilometer moon Phoebe, depicted in this image, seems likely to be a Centaur that was captured by that planet's gravity at some time in the past. ... NASA s New Horizons spacecraft, having flown past Pluto six months ago, has been targeted to conduct an approach to a 45-kilometer-wide trans-Neptunian object at the end of 2018. NASA/JPL-Caltech/Space Science Institute ...

... Planets . ... The planets were found using the HARPS instrument on the 3.6m telescope at ESOтАЩs La Silla Observatory. ... A planet in orbit around a star causes the star to regularly move towards and away from observers on Earth. ... One newly discovered planet, HD 85512 b, is best hope found so far for a habitable exoplanet. ... The HARPS team so far have found that about 40% of stars similar to own Sun have at least one planet smaller than Saturn (which is 95 times more massive than Earth). ...

... Circling a Black Hole at its Photon Sphere . ... What would it look like to go right up to a black hole? ... What would it look like to orbit a black hole? Since the strong gravity of the black hole can significantly alter light paths, conditions would indeed look strange. ... Saturns Hyperion: A Moon with Odd Craters . ... M31: The Andromeda Galaxy . ... Andromeda is the nearest major galaxy to our own Milky Way Galaxy. Our Galaxy is thought to look much like Andromeda. ...

... Hyperion is the largest highly irregular (non-spherical) body in the solar system. ... Like most of Saturn's moons, Hyperion's low density indicates that it is composed of water ice with only a small amount of rock. ... The Voyager images and subsequent ground based photometry indicate that Hyperion's rotation is chaotic , i.e. its axis of rotation wobbles so much that its orientation in space is completely unpredictable. ... Will Hyperion's rotation remain chaotic forever? ... Saturn .. Titan .. ...

... Image courtesy of Korea Astronomy and Space Science Institute . ... There are already 29 multi-planet extrasolar planetary systems discovered (including this last one), so what makes this particular system unique? ... International Year of Astronomy, Ireland National Node . ...

H yperion ("hi PEER ee en") is the sixteenth of Saturn 's known satellites: orbit : 1,481,100 km from Saturn diameter : 286 km (410 x 260 x 220) mass : 1.77e19 kg I n Greek mythology Hyperion was a Titan, the son of Gaea and Uranus and the father of Helios. ... T he Voyager images and subsequent ground based photometry indicate that Hyperion's rotation is chaotic , i.e. its axis of rotation wobbles so much that its orientation in space is completely unpredictable. ... Saturn .. Titan .. ...

... ESO, the European Southern Observatory . ... ESO's Governing Bodies . ... Travel to ESO Headquarters . ... Visits to ESO Sites . ... Architecture at ESO . ... ESO . ... Solar System . Star Clusters . ... Stars@ESO . ... This animation shows an artistтАЩs impression of the remarkable planetary system around the Sun-like star HD 10180. ... Here we initially see the HD 10180 planetary system in its entirety with the planets labelled. ... Milky Way : Star : Circumstellar Material : Planetary System . ...

... The Sun 1. Does anyone know how many stars are there in the solar system? ... Come take a look at the Sun. See that? ... Galaxies 1. Did you know all the stars you see when you look up are inside our galaxy! ... Our galaxy is huge! If the solar system- the sun and all the planets- could fit in the palm of my hand, the Milky Way galaxy would be the size of North America. ... What do you see? ... Did you know that our Sun and solar system were born in a cloud of gas and dust like this. ...

Visitor Information and Housing Request . Please note: APO accommodations are not available to the public . Read this page carefully, and please submit this form 30-working days in advance of your arrival. ... When on-site accommodations are full, APO will assist you in obtaining off-site housing. ... To cancel an existing reservation, enter the name and arrival date and choose "cancel." ... Complete the name and arrival date in the fill-in form and select Cancel . ... Room #1/Dorm A . ...

Dust around Herbig Ae/Be Stars: Porous, Cometary-like Grains? ... This brings up the question, which we try to answer here, of how the grain porosity affects the observational manifestations of the dust shells of HAeBe stars: the excess infrared emission, anomalous extinction in the ultraviolet, and the peculiar behaviour of colour indices and linear polarization during deep brightness minima observed for about 25% of HAeBe stars (UX Ori, WW Vul, etc). ...

Weekly Bulletin on Solar and Geomagnetic Activity Highlights on 14 - 20.09.2015, Forecast on 21 - 28.09.2015, Carrington Rotation 2168 (04,57.10.2015) SUNSPOT-FORMING ACTIVITY OF THE SUN WAS AT THE AVERAGE LEVELS. ... ACCORDING TO THE DATA FROM SOHO AND STE- REO CORONOGRAPHS >27 CMEs, ONE HALO TYPE AND ONE "PARTIAL HALO II" TY- PE HAVE BEEN OBSERVED. ... GEOMAGNETIC CONDITION THE ENTIRE PERIOD CHANGED FROM THE MINOR MAGNETIC STORM TO UNSETTLED. ... PROBABILITY OF MAGNETIC STORM 40%. ...

... Less than 1% of 20cm observing time would be lost to bad weather. ... Over the winters of 2002-2004, the so-called "swap" scheme has been used to give 3mm observers some robustness to poor weather. With this scheme, a pair of 3mm and centimetre proposals are partnered and scheduled typically a few days apart. At the discretion of the 3mm observer, the order of the 3mm and centimetre proposal can be swapped to give the 3mm observer the best chance at good weather. ...

... Proposal Type: General Category: Observation Category: Total Time Requested: Minimum Useful Time: Prop osal Title: Regular Pulsars Galactic 16.25 Hours 1 hour PSR J2045+3633: A pulsar - massive WD system with an unusually eccentric orbit ABSTRACT: PSR J2045+3633 is a new 31.7 ms pulsar with a companion which is likely a massive WD and an orbital period of 32 days. Its expected timing precision with Arecibo is 0.3 us every 30 minutes, making it a likely NANOGrav target. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. December 22, 1996 . 18 Miles From Deimos . Credit: The Viking Project , NASA . ... Potato shaped and barely 6 miles wide this asteroid-like body was visited by the Viking 2 orbiter in 1977. This image was made when the spacecraft approached to within 18 miles of Deimos' surface. ... About APOD > . ... NASA Technical Rep.: ...

... Bojan Nikolic web pages home . ... For some numerical experiments with CASA , I have recently been recompiling some parts of this package. ... That is before even touching the code! ... I used the SCons build system to build the CASACORE libraries. ... Apparently missing include for strlen: --- a/code/display/Display/Options.cc +++ b/code/display/Display/Options.cc @@ -30,6 +30,7 @@ #include <sys/stat.h> #include <iostream> #include <dirent.h> +#include <string.h> namespace casa { namespace viewer {...

METAR Wishlist Following is a list of items that I'd like to add to METAR or that others have requested. ... It'd be nice to have a lot of METARs which encompass various weather condition which we can test against. ... Sites around the world use similar (but slightly different) formats for their METARs. There is always a METAR format the parser will fail on. Calculate Heat Index and/or Wind Chill Both would be fairly easy to do, provided you get the formulas correct. ...

... Bad Astronomy . ... Bitesize Astronomy . ... Have you ever looked at pictures of Saturn's rings and noticed what look like gaps in the rings? ... Gian Domenico Cassini discovered a large gap in Saturn's rings in 1675. Later, an astronomer named Encke discovered a smaller gap near the edge of the rings. ... It was found long ago that an orbit in the Cassini Division, as the large gap is named, has a period almost exactly one-half that of one of Saturn's moons named Mimas. ... 2008 Phil Plait. ...

JSC History . ... NASA History . ... Space Shuttle: 1981 to 2011 . NASA's Space Shuttle orbiters were the first spacecraft capable of routinely launching into orbit like rockets and then returning to Earth as gliders. ... http://www.nasa.gov/agency/crm/shuttle/index.html . ... http://www.jsc.nasa.gov/history/oral_histories/sts-r.htm . ... http://www.jsc.nasa.gov/history/shuttle_pk/pk/Flight_001_STS-001_Press_Kit.pdf . ... http://www.jsc.nasa.gov/history/shuttle_pk/shuttle_press.htm . ...

... A dynamo is created in a magnetic field by an electric circuit, part of which is moving relative to the rest (additional conditions must also be met). ... Furthermore, the plasma between them conducts electricity very well along its magnetic field lines, which act as if they were wires connecting Io and the planet (drawing). ... The drawing is not to scale. ... The Hubble Space Telescope , using its Wide Field and Planetary Camera 2, has been photographing auroras of the planet Jupiter. ...