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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 ().
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]
It is readily propagated from seed, [5] so most plants encountered in nurseries are seed grown. The popularity of this species among collectors and enthusiasts has ensured that a number of cultivars are available. One such cultivar is the 'Super Kabuto', a clonally propagated variety whose large trichomes congregate into dense spots, arranged ...
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.
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.
As of 2017, there are over 52,011 known variable stars, [1] with more being discovered regularly, so a complete list of every single variable is impossible at this place (cf. GCVS). The following is a list of variable stars that are well-known, bright, significant, or otherwise interesting.
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F-type main-sequence stars are main-sequence stars (luminosity class V) of spectral type F. Subcategories. This category has only the following subcategory. ...