... On the night of December 13, 1908, 100 years ago today, the 60-inch diameter reflecting telescope of Mount Wilson Observatory was first tested on the stars. ... Perhaps the most famous star cluster on the sky, the Pleiades can be seen without binoculars from even the depths of a light-polluted city. ... A Halo Around the Moon . ... Cameras around the globe pointed skyward this week to capture the spectacular conjunction of a crescent Moon and bright planets Venus and Jupiter. ... Venus in the Moon ....

... 2008 December 4 . Venus in the Moon . ... Explanation: On December 1, bright planets Venus and Jupiter gathered near the young crescent Moon, an inspiring celestial scene in early evening skies around the world . But from some locations the Moon actually passed in front of Venus, interrupting the tight grouping with a lunar occultation. ... In the inset, recorded later in darkened skies over Breil-sur-Roya in southeastern France, a dazzling Venus has reappeared below the bright lunar crescent. ...

... The Pleiades star cluster, also known as the Seven Sisters and Messier 45, is a conspicuous object in the night sky with a prominent place in ancient mythology . ... The stars in the Pleiades are thought to have formed together around 100 million years ago, making them 1/50th the age of our sun, and they lie some 130 parsecs (425 light years ) away. ... Data for these stars are listed in a table below. ... Yes . ... WEBDA Pleiades cluster data . ... M45: The Pleiades Star Cluster (2007 November 18) ...

Astronotes Armagh Planetarium's Stellar Blog! ... Monthly Sky Notes . ... Posted on May 20, 2011 | No Comments In our latest night sky guide we look at the stars of late spring and early summer and ponder just what does the brightness of a star really mean. ... Continue Reading.. ... No Comments What can you see in the March 2011 night sky? ... 2 Comments The long dark nights continue through February, but this does give us a chance to see some interesting objects in our night sky. ...

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . Armagh Observatory, 13 October 2015 : Armagh Observatory reports that the next three weeks, from mid-October to the first week of November, will provide an interesting opportunity to observe a "dance" of the brightest planets Venus, Jupiter and Mars in the morning sky towards the East before dawn. ... The attached image shows the view of the morning sky towards the East at 06:00 (BST) on 28th October 2015. ...

... More on 51 Peg: . The discovery of a Jupiter--mass planet in orbit around the solar--type star 51Peg has been reported by Michel Mayor and Didier Queloz (Geneva Observatory) on October 6th at the 9th Cambridge workshop on "cool stars, stellar systems, and the sun" held at Florence (Italy). ... Recall that the measurements of radial velocity only yield v sin i which in turn gives us M sin i. For most values of i, sin i will be greater than 0.5 and this gives a mass estimate of 0.5 Jupiter masses. ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... Bright planets meet at dusk . ... Astronomy magazine subscribers can read the full article for free. ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter....

... In typical nightly use, the wide field and planetary telescope and cameras record images of favorably placed objects in the sky, including constellations, bright variable stars, nebulae through narrow-band filters, comets, the Moon, and planets. ... Shared Skies telescopes are available for use by students at the University of Louisville and the University of Southern Queensland, and by teachers and students in middle and high schools mentored by faculty at the universities. ...

... Abstract . ... Quasars at Redshift z=6 and Early Star Formation History . ... The Red Sequence at 1.3 . ... Coronagraphic Polarimetry of HST-Resolved Debris Disks . ... Exploring the Scaling Laws of Star Formation . ... ACS imaging of the "Little Red Spot" from April, 2006 . ... Using the High Resolution Camera (HRC) on ACS, HST obtained a series of images of the `Little Red Spot' in early 2006. ... Observations of the A0 star, HD 32297, and the G3 dwarf, HD 61005, are scheduled in the coming week. ...

... A rogue planet has been spotted wandering alone through space with no parent star in sight! ... It's even harder when the object is very dark and floating through space. ... These are star-like objects that are much bigger than planets up to about 80 times bigger than Jupiter but too small to be stars. ... Cool Fact: Some astronomers say there are about twice as many rogue planets as there are stars in our galaxy; other think there are up to 100,000 times more! ...

home publications > mercury . SEARCH ASP SITE: Match ALL words Match ANY word . ... ASP Conference Series . Monograph Publications . IAU Publications . ... Publications of the ASP (PASP) . ... Mercury Magazine . ... Order Mercury Issues . Mercury Advertising Rates . ... Astronomy Beat . ... Mercury Magazine Contents . ... November/December 2003 . ... What Is a "Planet"?, ... The Planet Neptune . ... The Night Sky Network . ... October/November Sky Map | December/January Sky Map . ...

... It was designed to observe the solar wind approaching Earth, from a position near the Lagrangian point L1, and it is part of the International Solar-Terrestrial Physics (ISTP) Initiative . ... The original plan called for "Wind" to approach its final station over two years, undergoing two close encounters with the Moon to boost its speed. ... If however the object is moving , the encounter is not symmetric, and in the end the spacecraft may have gained or lost speed, depending on its trajectory. ...

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2000 November 8 . October Skylights . ... Explanation: With brilliant Venus above the western horizon at sunset and Jupiter and Saturn high in the east by early evening, November's night sky is filled with bright planets. October's sky featured bright planets as well and, triggered by the active Sun, some lovely auroral displays . ...

... Articles | ... Forums . ... 230 deg . 49 deg . ... 130 deg . ... More Info . ... 210 deg . ... 168 deg . ... 249 deg . ... 195 deg . ... 271 deg . ... 110 deg . ... 338 deg . ... July 15 . 247 deg . ... 224 deg . ... 340 deg . ... July Phoenicids (PHE) . ... August 10 . 341 deg . ... 339 deg . ... 307 deg . ... 334 deg . ... 335 deg . ... 286 deg . ... 327 deg . ... 262 deg . ... 102 deg . ... 153 deg . ... 117 deg . ... December 2 . ... 123 deg . ... 100 deg . ... www.astronomy.net . ...

ATCA flux density scale at 12mm R.J. Sault 7 December 2003 The flux of PKSB1934-638 at centimetre wavelengths has been well-studied by Reynolds (1994), and is in routine use as the primary flux density reference for the ATCA. ... With the installation of receivers at the ATCA which operate in the 16-25 GHz window, there is a clear need for a flux density scale in this band. ... The data were measured as part of pro ject C1225 and as special observations to determine the flux density of 1934-638. ...

IAA Transactions, No. 8, ``Celestial Mechanics'', 2002 The Major Planets Satellite Observations with CCD techniques A. Lopez Garcia 1 , J. A. Morano Fernandez 2 , A. F. Martinez 3 , E. Yagudina 4 1 Astronomical Observatory, Valencia University 2 Astronomy and Astrophysics Dept., ... Casas R., Krasinsky G. A., Yagudina E. I. CCD observations of relative positions of Galilean satellites of Jupiter and star 104297 HIPPARCOS (1997 November 12 -- 124). Communications of IAA, 1998, No. ...

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... Bad Astronomy . ... Bitesize Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... This image is a single frame of a GREAT animation made of several images of Jupiter and its moons by Antonio Cidadao. You can actually watch the moons orbit Jupiter! ... So it surprises me that no ancient texts describe the moons of Jupiter. ... If Jupiter were painted black, the four moons would be pretty easily seen with the naked eye from a dark site. ... 2008 Phil Plait. ...

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