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Sudarsky's classification of gas giants for the purpose of predicting their appearance based on their temperature was outlined by David Sudarsky and colleagues in the paper Albedo and Reflection Spectra of Extrasolar Giant Planets [1] and expanded on in Theoretical Spectra and Atmospheres of Extrasolar Giant Planets, [2] published before any successful direct or indirect observation of an ...
The smallest known extrasolar planet that is likely a "gas planet" is Kepler-138d, which has the same mass as Earth but is 60% larger and therefore has a density that indicates a thick gas envelope. [16] A low-mass gas planet can still have a radius resembling that of a gas giant if it has the right temperature. [17]
[14] [15] The largest planetesimals can grow much faster via pebble accretion, [10] but if the formation or delivery of pebbles is rapid numerous Earth-mass planets form instead of a few giant planet cores. [16] As the largest objects approach Earth-mass the radius from which pebbles are accreted is limited by the Hill radius. [3]
The gas giants in our solar system — Jupiter, Saturn, Uranus and Neptune — are much denser. This giant gas planet is as fluffy and puffy as cotton candy Skip to main content
Celery (Apium graveolens Dulce Group or Apium graveolens var. dulce) [1] is a cultivated plant belonging to the species Apium graveolens in the family Apiaceae that has been used as a vegetable since ancient times. Celery has a long fibrous stalk tapering into leaves. Celery seed powder is used as a spice.
Fresh celery for celery juice. Celery is the vegetable that keeps on giving. For starters, the sturdy stalks stay fresh in the fridge for weeks and can be used in a myriad of ways.
It orbits a Jupiter-like gas giant exoplanet in the habitable zone, mostly white due to water vapor clouds (Class II, in Sudarsky's exoplanet classification) If the moon's mass is not too low compared to the planet, it may in turn stabilize the planet's axial tilt , i.e. its obliquity against the orbit around the star.
HAT-P-12b is a H/He-dominated gas giant planet with a core mass of 11.3 +2.6 −2.1 M 🜨 and is moderately irradiated by its low-metallicity host star. [ 3 ] Therefore, HAT-P-12b is most likely an H/He-dominated planet with a core of perhaps ~10 M 🜨 , and a total metal fraction of ~15%.