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Domain: iau.org
Stories and comments across the archive that link to iau.org.
Stories · 13
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New Horizons Gets Closer to Pluto, But Mystery Spots Now Out of Sight
The L.A. Times reports that the strange spots spotted on the surface of Pluto by the New Horizons mission will be on the wrong side of the planet for the approaching fly-by that the craft will make of the smallest planet (or dwarf planet, depending) of our solar system. (The BBC makes a similar observation.) That doesn't mean that New Horizons' approach is anything short of "a spectacular event." -
One Astronomer's Quest To Reinstate Pluto As a Planet
sarahnaomi writes: Most of us grew up believing that tiny, distant Pluto was the outermost planet in our solar system. Then, one day, the scientific powers that be decreed that it wasn't. But it seems the matter is far from settled. David Weintraub—who describes Pluto's exile as a stunt organized by a "very small clique of Pluto-haters"—would have the dwarf world rejoin the ranks of our Solar System's fully-fledged planets today. But solid evidence that Pluto deserves the title may come in July, when NASA's New Horizons spacecraft slingshots around the icy rock and sends us back a detailed picture of its composition. Pluto's planethood was revoked by majority vote on the final day of the 2006 IAU conference. Over 2,500 astronomers attended the meeting throughout the week, but only 394 votes ultimately decided Pluto's fate: 237 in favor of demoting the planet and 157 against. -
IAU To Uwingu: You Can't Name That Martian Crater Either
RocketAcademy writes "The International Astronomical Union has thrown a tantrum over a plan to crowdsource names for craters on Mars. The IAU gives official scientific names to craters, but it has only bothered with craters that have 'scientific significance.' The science-funding platform Uwingu has launched a campaign to come up with popular names for the remaining craters. For as little as $5, a member of the public can name one of the craters on Uwingu's map, with the proceeds going to fund space science and education. This caused the IAU to issue a statement condemning such crowdsourcing efforts. The IAU pointed out that it did allow the public to vote on names for two of Pluto's moons, in the past. In that case, however, the IAU rejected the winning name (Vulcan)." Last year, the IAU got into a spat with Uwingu over naming exoplanets. Sounds like the old name a star scam, on Mars. -
IAU To Uwingu: You Can't Name That Martian Crater Either
RocketAcademy writes "The International Astronomical Union has thrown a tantrum over a plan to crowdsource names for craters on Mars. The IAU gives official scientific names to craters, but it has only bothered with craters that have 'scientific significance.' The science-funding platform Uwingu has launched a campaign to come up with popular names for the remaining craters. For as little as $5, a member of the public can name one of the craters on Uwingu's map, with the proceeds going to fund space science and education. This caused the IAU to issue a statement condemning such crowdsourcing efforts. The IAU pointed out that it did allow the public to vote on names for two of Pluto's moons, in the past. In that case, however, the IAU rejected the winning name (Vulcan)." Last year, the IAU got into a spat with Uwingu over naming exoplanets. Sounds like the old name a star scam, on Mars. -
New Moons of Pluto Named Kerberos and Styx; Popular Choice 'Vulcan' Snubbed
MarkWhittington writes "The International Astronomical Union announced on July 2, 2013 its picks to name the two recently discovered moons of Pluto, hitherto known as P4 and P5. They will now be known as Kerberos and Styx respectively. In Greek and Roman mythology Kerberos is the name of the mythological three headed hound that guards the entrance to the underworld. Styx is the name of the river that separated the underworld from the real world. The names, picked in a popular contest, were actually the second and third choices. The first choice was Vulcan, which was officially touted because it was the name of a Roman god who was a relative of Pluto's and was associated with fire and smoke. The real reason that Vulcan shot up to the top of the list was that was a choice by Star Trek fans in a campaign instigated by actor William Shatner, who played Captain James Kirk in the original series." Shatner is sad and may lead a revolt. Phil Plait wins the award for best headline for this news. -
IAU: No, You Can't Name That Exoplanet
astroengine writes "The International Astronomical Union (IAU) — the official body that governs the designations of all celestial bodies — in their capacity of purveyors of all things 'official' has deemed attempts at crowdsourcing names for exoplanets illegitimate. 'In the light of recent events, where the possibility of buying the rights to name exoplanets has been advertised, the International Astronomical Union wishes to inform the public that such schemes have no bearing on the official naming process,' writes Thierry Montmerle, General Secretary of the IAU in Paris, France. Although the 'schemes' are not specifically named, the most popular U.S.-based "exoplanet naming" group Uwingu appears to be the target of today's IAU statement. Set up by Alan Stern, planetary scientist and principal investigator for NASA's Pluto New Horizons mission, Uwingu encourages the public to nominate and vote (for a fee) on names for the slew of exoplanets steadily being discovered." -
Astronomers Fix the Astronomical Unit
gbrumfiel writes "The Astronomical Unit (AU) is known to most as the distance between the Earth and the Sun. In fact, the official definition was a much more complex mathematical calculation involving angular measurements, hypothetical bodies, and the Sun's mass. That old definition created problems: due to general relativity, the length of the AU changed depending on an observer's position in the solar system. And the mass of the Sun changes over time, so the AU was changing as well. At the International Astronomical Union's latest meeting, astronomers unanimously voted on a new simplified definition: exactly 149,597,870,700 meters. Nobody need panic, the earth's distance from the sun remains just as it was, regardless of whether it's in AUs, meters, or smoots." -
IAU Names Fifth Dwarf Planet Haumea
Kligat writes "The International Astronomical Union has renamed the dwarf planet Haumea and its two moons Hi'iaka and Namaka, after the Hawaiian fertility goddess, the patron goddess of Hawaii, and a water spirit. The cigar-shaped body is speculated to have resulted from its short rotational period of only four hours. Holding up the reclassification of the body as a dwarf planet was a dispute over its discovery between the groups of José Luis Ortiz Moreno and Michael E. Brown." -
IAU Proposes 3 New Planets
IZ Reloaded writes "Sources tell SPACE.com that the International Astronomical Union is preparing to include three new entries to the current list of planets in our solar system. From the article: The asteroid Ceres, which is round, would be recast as a dwarf planet in the new scheme. Pluto would remain a planet and its moon Charon would be reclassified as a planet. Both would be called "plutons," however, to distinguish them from the eight "classical" planets. A far-out Pluto-sized object known as 2003 UB313 would also be called a pluton." -
Pluto's New Moons Named Nix and Hydra
Dean W, Armstrong writes "Pluto's two new satellites, previously identified as S/2005 P 2 and S/2005 P 1, received official names from the International Astronomical Union today. Nix and Hydra are named after the mother of Charon and the fierce nine-headed monster. The initials of the new names, N and H, call to mind the New Horizons spacecraft, on a fast trajectory to visit Pluto, just like Pluto's symbol calls to mind Percival Lowell." -
Phoebe Pictures Released
EccentricAnomaly writes "NASA has begun to release some pictures from Cassini's Phoebe flyby last Friday. If you look at the thumbnail of this image or if you look at the right of these images, you can see a group of craters that look like a skull just south of the equator and something that looks like George Washington (wearing his wig) near the north pole. Come up with some good names for features, and you can submit your ideas to the IAU. There's a process for naming a newly discovered crater, fossa, or sulcus. By the way, the naming convention for Phoebe is people associated with Phoebe or the Greek islands." -
Nine More Extrasolar Planets Discovered
Complete Bastard writes: "Several news sites including BBC and Reuters are running a story about the discovery of an additional nine extrasolar planets, to be announced at a meeting of the International Astronomical Union (IAU). It will be further announced that astronomers have discovered two Saturn sized planets orbiting the star HD 83443. There is more to the BBC article, which can be found here." -
Radio Astronomers Win Spectra
General_Corto writes: "The BBC is currently running an article about the latest global allocations of EM spectrum for radio astronomy. The entire range from 75GHz to 275Ghz has been given to them alone, which should ensure that all their readings are free from earth-based interference. Apparently, "there is more energy at millimeter and sub-millimeter wavelengths washing through the Universe than there is of light or any other kind of radiation." Hopefully all those little green men out there use cellphones in that frequency range." You may also be interested in the home pages of the International Telecommunications Union and the International Astronomical Union.