asterism

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asterism

A prominent grouping of stars forming a distinctive shape but not a complete or recognized constellation. The Plough is an asterism within the constellation Ursa Major. Other examples of asterisms are the Sickle in Leo, the False Cross and the Summer Triangle.

asterism

[′as·tə‚riz·əm]
(astronomy)
A constellation or small group of stars.
(optics)
A starlike optical phenomenon seen in gemstones called star stones; due to reflection of light by lustrous inclusions reduced to sharp lines of light by a domed cabochon style of cutting.
(spectroscopy)
A star-shaped pattern sometimes seen in x-ray spectrophotographs.
References in periodicals archive ?
Because opposing asterisms can only be found with the help of circumpolar stars, which are always in the sky.
0) Dec Streicher 65 Asterism 20h32m5 -45[degrees]18' NGC 7038 Galaxy 21 15 2 -47 13 NGC 7038A Galaxy 21 15 4 -47 37 NGC 7041 Galaxy 21 16 5 -48 22 NGC 7041A Galaxy 21 18 3 -48 24 NGC 7041B Galaxy 21 17 8 -48 24 NGC 7049 Galaxy 21 19 3 -48 34 ESO 236-SC07 Open Cluster 21 21 5 -51 49 NGC 7090 Galaxy 21 36 5 -54 33 NGC 7140/41 Galaxy 21 52 2 -55 34 NGC 7205 Galaxy 22 08 5 -57 25 NGC 7205A Galaxy 22 07 5 -57 27 HD 209295 Star 21 36 5 -54 33 Object Mag.
Even the humble mopani worm is pressed into service to illustrate one of Magda's own asterisms.
The shifting position with respect to the stellar background of the sun at this time, as it reached its southern horizontal extremes towards the winter solstice of mid-to-late December, would have been detectable indirectly by careful attention to helical risings and settings of the region's stars--or indeed, if such could be imagined, to the changing positions of other stars or asterisms known by early observers to be removed from these by particular intervals.
5 degrees further west from the asterism is the globular cluster NGC 6352, situated inside the diffuse emission nebula GN 17.
The conventional order of the twenty-seven or twenty-eight lunar asterisms in Indic astrology is as follows: Agvini, Bharani, Krttikit, Rohini, Mrgagiras, Ardra, Punarvasu, Pusya, Aslesa, Magha, Purva or Purva-phalguni, Uttara or Uttara-phalguni, Hasta, Citra, Svati, Vigakha, Anuradha, Jyetha, Mula, Parva-asadha, Uttara-asadha, Sravana, Sravitha, Satabhisa or Satataraka, Parva-bhadrapada, Uttara-bhadrapaa Revati.
The shape of the asterism reminds me in a way of a typical Japanese fan.
The earliest such metaphorical use of stars or asterisms occurs in ode no.
3 degrees east of NGC 3132 is another asterism which really appeals to me and is a great pleasure to share with you.
Here, the correlative cosmology of the "Fire Phases" (wuxing) is invoked to explain the antagonism between Chen and Chu, based on their archaic astrological linkage with watery and fiery asterisms.
Searching for asterisms, I could hardly believe my eyes when I stumbled across a small miracle in the far south-western corner of the constellation.
37 These are the asterisms, Oxherd (Qianniu [Chinese Text Omitted], [Alpha] Aquilae, or Altair) and Weaving Maid (Zhinu [Chinese Text Omitted], [Alpha] Lyrae, or Vega); according to mythology they were lovers separated by the Sky River (our Milky Way) who could meet only once a year, on the seventh day of the seventh month, by crossing a bridge formed by magpies.