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Latest Exoplanetology Stories

Stars And Planets Larger Than Thought Kepler
2013-06-04 13:36:00

Lee Rannals for redOrbit.com - Your Universe Online Astronomers writing in the Astrophysical Journal say they have found that many of the stars and planets discovered are larger than previously thought. The astronomers used the NOAO Kitt Peak National Observatory Mayall 4-meter telescope to observe candidate planets identified by the NASA Kepler Mission and found that most of the stars observed are larger than originally thought, and a quarter of them were 35 percent bigger....

Low-Budget Ground Telescope Pinpoints Gas Giant Exoplanet
2013-06-04 13:45:19

Lee Rannals for redOrbit.com — Your Universe Online Scientists announced during the American Astronomical Society´s (AAS) national meeting in Indianapolis this week that they have discovered a hot Saturn-like planet in another solar system 700 light-years away. The team used an inexpensive ground-based telescope to discover KELT-6b, which resides in the constellation Coma Berenices near Leo. This exoplanet has an orbit that transits its star every 7.8 days. Because of the...

Electrifying Exoplanets With Stellar Winds
2013-06-04 11:10:37

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online When scientists began seeking out planets outside of our solar system, they anticipated seeing systems much like our own. Small, rocky worlds orbiting a couple of astronomical units from the host star, with the gas giant planets orbiting farther out. After all, much effort had been given to explaining how a solar system such as ours would form. Only, this is not what has been found. Many solar systems are constructed...

Least Massive Exoplanet Outside The Solar System Observed By ESO Telescope
2013-06-03 05:43:49

Lee Rannals for redOrbit.com — Your Universe Online Astronomers using the European Southern Observatory's (ESO) Very Large Telescope (VLT) have imaged possibly the faintest exoplanet so far. The team reported in Astrophysical Journal Letters that they imaged a faint object moving near a bright star. The exoplanet has an estimated mass of four to five times that of Jupiter, which could potentially make it the least massive planet to be directly observed outside the Solar System....

White Dwarf Star Cooling Rates Updated By New Data
2013-05-29 16:00:35

Lee Rannals for redOrbit.com — Your Universe Online University of British Columbia (UBC) astronomers have determined that white dwarfs cool more slowly in the early stages of their life than models have previously predicted. White dwarfs are the dense, hot remnant cores of stars that have used up all of their fuel and lost their outer layers during the red giant phase. When these objects form, their surface temperatures are very hot, but cool over time as they radiate their...

Tiny Telescopes Ready To Study Sun's Future And The Origins Of Atoms
2013-05-29 05:17:17

Lee Rannals for redOrbit.com - Your Universe Online The smallest space telescope to ever hit the cosmos will soon start observing the largest stars in history. The BRIght Target Explorer (BRITE) telescopes will target the sky for the most luminous stars in our galaxy. Eventually, the two currently in orbit will be part of a "constellation" of telescopes in orbit that will monitor the sky regularly for years to come. Each BRITE satellite holds a small optical telescope feeding a CCD...

Weather Forecasting For Hot Jupiters
2013-05-25 06:34:23

[ Watch the Video: Big Weather on Hot Jupiters ] redOrbit Staff & Wire Reports - Your Universe Online The class of new worlds dubbed as “hot Jupiters” definitely live up to their name, according to new research that has recorded temperatures as high as 2400 degrees Kelvin (or more than 3800 degrees Fahrenheit) on one of these massive, close-orbiting exoplanets. According to NASA, those temperature readings were observed on a gas giant named HAT-P-2b by Nikole Lewis, a...

Solar Twin Revealed By CoRoT
2013-05-20 06:06:03

John P. Millis, Ph.D. for redOrbit.com — Your Universe Online Our knowledge of how stars evolve arises out of our survey of billions of stars within and outside of our galaxy. As we piece together the snapshots of these stars of various sizes and masses, at various stages of their evolution, we begin to get a complete picture of how stars are born, live, and die. Of course, stars most similar to our Sun are perhaps the most relevant as they can tell us about our Sun´s past...

Scientists Has Plan To Revive Defunct Kepler Telescope
2013-05-16 14:29:36

Lee Rannals for redOrbit.com - Your Universe Online NASA announced yesterday that its Kepler space telescope is stuck in standby mode, but one professor is already coming up with ideas to try and revive the observatory. Scott Hubbard, a consulting professor of aeronautics and astronautics, helped guide the Kepler mission when he served as director of NASA Ames Research Center. He has devised a few plans for the space agency that could potentially help bring the planet-hunting spacecraft...

Kepler Goes Into Thruster-Controlled Safe Mode
2013-05-15 18:53:56

Lee Rannals for redOrbit.com — Your Universe Online NASA announced on Wednesday that its Kepler spacecraft was sitting in safe mode once again, possibly putting an end to its high-accuracy observations. Kepler went into a Thruster-Controlled Safe Mode earlier in May, and NASA said its spacecraft is sitting in the same position again. The space agency said the root cause of Kepler putting itself into safe mode is unknown, but the possible cause "appears to be an altitude error."...


Latest Exoplanetology Reference Libraries

Planetary Astronomy
2014-01-12 00:00:00

Image Caption: Artistic concept of a planetary system. Credit: Wikipedia/NASA/JPL-Caltech The term Astronomy encompasses a broad range of topics, including the study of stars, galaxies, and planets. In order to focus on the different areas of study, many subfields of astronomy emerge. One such area is the study of planets known, appropriately, as Planetary Astronomy. Observational Planetary Astronomy Even within the field of Planetary Astronomy, there are several divisions to...

7_a23a0395183f2368aec4b62e1b9470672
2004-10-19 04:45:43

Terrestrial Planet Finder -- The Terrestrial Planet Finder is a proposed NASA telescope system capable of detecting extrasolar terrestrial planets. In May 2002, NASA chose two TPF mission architecture concepts for further study and technology development. Each would use a different means to achieve the same goal - to block the light from a parent star in order to see its much smaller, dimmer planets. That technology challenge has been likened to finding a firefly near the beam of...

6_f3ae28666ea2fe9e06e16221eea19d522
2004-10-19 04:45:41

Extrasolar Planet -- An extrasolar planet is a planet orbiting around a star other than the Sun. Extrasolar planets were first discovered in the 1990s as a result of improved telescope technology, CCD and computer-based image processing which allowed far more accurate measurements of stellar motions. The first extrasolar planets were reported by the astronomer Aleksander Wolszczan in 1993, orbiting the pulsar PSR 1257+12. Subsequent investigation has determined that they are only planets...

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Word of the Day
bibliopole
  • A bookseller; now, especially, a dealer in rare and curious books.
This word comes from a Greek phrase meaning 'book seller.'
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