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Gagea villosa, common name hairy star of Bethlehem, [2] is a Eurasian and North African plant species in the lily family. Gagea villosa is found in Europe, North Africa and Western Asia. Its range extends from Spain and Morocco east to Russia and Iran, and as far north as Sweden. [1] It was first described to science by Bieberstein in 1808. [3] [2]
Cryptanthus bivittatus, (commonly known as Earth star) is a small, terrestrial species of plant in the family Bromeliaceae. Reaching a height of only 6 - 8 inches and preferring moderate or diffuse light, it is commonly used in terrariums and novelty planters.
Astrophytum is a genus of six species of cacti, native to North America. [2]These species are sometimes referred to as living rocks, though the term is also used for other genera, particularly Lithops ().
This method works best for young planets that emit infrared light and are far from the glare of the star. Currently, this list includes both directly imaged planets and imaged planetary-mass companions (objects that orbit a star but formed through a binary-star-formation process, not a planet-formation process).
The following is a list of stars with resolved images, that is, stars whose images have been resolved beyond a point source. Aside from the Sun , observed from Earth , stars are exceedingly small in apparent size, requiring the use of special high-resolution equipment and techniques to image.
Indeed, F0 stars (7,400 K, 1.6 M ☉︎, 1.7 R ☉︎, ~7 L ☉︎) are considered by many scientists as the hottest and most massive stars capable of supporting habitable planets. A planet orbiting an F-type star at the Earth boundary within the HZ would receive 2.5 (F9 star) to 7.1 (F0 star) times the UV that Earth gets from the sun. [1]
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It is prominent in many galactic open clusters, and it is also noticeable in many intermediate-age globular clusters and in nearby field stars (e.g. the Hipparcos stars). The red clump giants are cool horizontal branch stars, stars originally similar to the Sun which have undergone a helium flash and are now fusing helium in their cores.