Showing posts with label Ames Research Center. Show all posts
Showing posts with label Ames Research Center. Show all posts

Wednesday, February 20, 2013

Venus' Transit and the Search for Other Worlds | Redux

Venus' Transit and the Search for Other Worlds

Venus transit from Reno, Nevada
Venus transit from Reno, Nevada by Gadget_Guru
License (according to Flickr): Attribution License
Excerpt:

The first recorded transit of Venus: William Crabtree (1610–1644) was an astronomer, mathematician, and merchant from what is now Greater Manchester, England. He was one of only two people to observe and record the first predicted transit of Venus in 1639. Credit: Ford Madox Brown, mural at Manchester Town Hall. Light curve of a planet transiting its star: Transit data are rich with information. By measuring the depth of the dip in brightness and knowing the size of the star, scientists can determine the size or radius of the planet. The orbital period of the planet can be determined by measuring the elapsed time between transits. Once the orbital period is known, Kepler's Third Law of Planetary Motion can be applied to determine the average distance of the planet from its stars.

People:

Kepler

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Relevance: 0.785093

Disambiguation: Academic | Astronomer | OperaCharacter | ScientistReferences:

William Crabtree

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Madox Brown

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Captain James Cook

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Jeremiah Horrocks

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Natalie Batalha

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SentimentQuote
0.0685477"Throughout history, astronomers have creatively used nature's coincidences as opportunities to learn something new about the universe," said Natalie Batalha, ...
0"Throughout history, astronomers have creatively used nature's coincidences as opportunities to learn something new about the universe," said Natalie Batalha, Kepler mission scientist at NASA Ames Research Center, Moffett Field, Calif. "Today is no different. As Venus crosses the disk of the sun, her shadow sweeps across the face of Earth in the same way that the shadows cast by distant exoplanets sweep across the face of the Kepler photometer."
Sentiment Stats:
  • Number of Quotes: 2
  • Aggregate Sentiment: 0.0685477
  • Mean: 0.03427385
  • Standard Deviation: 1.7320508075689

Michele Johnson

Overall Sentiment: 0

Relevance: 0.269269

Key:

  • Aggregate Sentiment is meant to be an indicator of an individual's overall sentiment.
  • The Mean is meant to be an indicator of an individual's average comment sentiment.
  • The Standard Deviation, when there are enough quotes, will indicate an individual's consistency of sentiment (i.e. a Standard Deviation of 0 would mean they were very consistent in their sentiment and 1 would mean they were very inconsistent).

Note that quote stats are likely to be meaningless beyond the aggregate score due to the tiny sample size. However, they are always provided just in case you find something useful there.

Additional Info:

Organization: Kepler Mission

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Technology: Kepler space telescope

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Facility: Moffett Field

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Facility: Manchester Town Hall

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City: Manchester

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Disambiguation: AdministrativeDivision | EnglishMetropolitanBorough | GovernmentalJurisdiction | OlympicBiddingCityReferences:
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Wednesday, December 12, 2012

NASA’s Kepler Detects Potential Evaporating Planet Candidate | Synopsis

NASA’s Kepler Detects Potential Evaporating Planet Candidate

playing light
playing light by chang2034
License (according to Flickr): Attribution License
Excerpt:

The artist's concept depicts a comet-like tail of a possible disintegrating super Mercury-size planet candidate as it transits its parent star named KIC 12557548. At an orbital distance of only twice the diameter of its star, the surface temperature of the potential planet is estimated to be a sweltering 3,300 degrees Fahrenheit. At such a high temperature, the surface would melt and evaporate. The energy from the resulting wind would be enough to allow dust and gas to escape into space creating a trailing dusty effluence that intermittently blocks the starlight. Astronomers may have detected evidence of a possible planet disintegrating under the searing heat of its host star located 1,500 light-years from Earth. Similar to a debris-trailing comet, the super Mercury-size planet candidate is theorized to fashion a dusty tail. But the tail won't last for long.

People:

Kepler

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Relevance: 0.842551

Disambiguation: Academic | Astronomer | OperaCharacter | ScientistReferences:

Saul Rappaport

Overall Sentiment: -0.0114525

Relevance: 0.404297

Jon Jenkins

Overall Sentiment: 0.0154259

Relevance: 0.371172

SentimentQuote
-0.315806"The bizarre nature of the light output from this star with its precisely periodic transit-like features and highly variable depths exemplifies how Kepler is expanding the frontiers of science in unexpected ways," said Jon Jenkins, ...
-0.318881"The bizarre nature of the light output from this star with its precisely periodic transit-like features and highly variable depths exemplifies how Kepler is expanding the frontiers of science in unexpected ways," said Jon Jenkins, Kepler co-investigator at the SETI Institute in Mountain View, Calif. "This discovery pulls back the curtain of how science works in the face of surprising data."
Sentiment Stats:
  • Number of Quotes: 2
  • Aggregate Sentiment: -0.634687
  • Mean: -0.3173435
  • Standard Deviation: 1.7320508075689

Key:

  • Aggregate Sentiment is meant to be an indicator of an individual's overall sentiment.
  • The Mean is meant to be an indicator of an individual's average comment sentiment.
  • The Standard Deviation, when there are enough quotes, will indicate an individual's consistency of sentiment (i.e. a Standard Deviation of 0 would mean they were very consistent in their sentiment and 1 would mean they were very inconsistent).

Note that quote stats are likely to be meaningless beyond the aggregate score due to the tiny sample size. However, they are always provided just in case you find something useful there.

Additional Info:

Organization: NASA

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Disambiguation: Company | GovernmentAgency | AirportOperator | AwardPresentingOrganization | SoftwareDeveloper | SpaceAgency | SpacecraftManufacturerReferences:

Organization: Space Telescope Science Institute

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Organization: Science Mission

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Organization: MIT

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Organization: Discovery Mission

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Organization: University of Colorado

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Organization: SETI Institute

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Organization: Ames Research Center

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Company: Technologies Corp.

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Technology: Kepler space telescope

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Facility: Jet Propulsion Laboratory

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Disambiguation: Location | PoliticalDistrict | AdministrativeDivision | GovernmentalJurisdiction | USStateReferences:
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