asterism

Definitions

  • WordNet 3.6
    • n asterism (astronomy) a cluster of stars (or a small constellation)
    • n asterism (mineralogy) a star-shaped figure with six rays that is seen in some crystal structures under reflected or transmitted light
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Webster's Revised Unabridged Dictionary
    • Asterism (Astron) A constellation.
    • Asterism (Astron) A small cluster of stars.
    • Asterism (Printing) An asterisk, or mark of reference.
    • Asterism (Crystallog) An optical property of some crystals which exhibit a star-shaped by reflected light, as star sapphire, or by transmitted light, as some mica.
    • Asterism (Printing) Three asterisks placed in this manner, ⁂, to direct attention to a particular passage.
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Century Dictionary and Cyclopedia
    • n asterism A group of stars: formerly equivalent to constellation, but now appropriated to any small cluster of stars, whether a part of a constellation or not.
    • n asterism An asterisk, or mark of reference.
    • n asterism Three asterisks placed before a passage, to direct attention to it.
    • n asterism An optical property exhibited by some crystallized minerals which show a star-shaped luminous figure when viewed by reflected light, as the asteriated sapphire, or by transmitted light, as some kinds of phlogopite. In the former case it is due to certain peculiarities of internal structure, in the latter to the inclusion of symmetrically arranged acicular crystals.
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Chambers's Twentieth Century Dictionary
    • n Asterism a group or collection of small stars: a constellation: three asterisks placed to direct attention to a passage: a property of some minerals which show a star-shaped luminous figure when viewed by reflected light—e.g. the asteriated sapphire
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Etymology

Webster's Revised Unabridged Dictionary
Gr. , fr. 'asth`r star; cf. F. astérisme,
Chambers's Twentieth Century Dictionary
Gr. asteriskos, dim. of aster, a star.

Usage

In literature:

All the golden-rod and asters were alert to see the sight.
"Harper's Young People, July 13, 1880" by Various
Try to find the elegant golden asters, which are more rare.
"Harper's Young People, August 10, 1880" by Various
This wild Daisy-like Callistephus bore many graceful single flowers about the size of our largest wild Asters.
"The Mayflower, January, 1905" by Various
Anthropomorphism has stolen back upon us: we can use the old language and speak simply of the planet Mercury as +Hermou aster+.
"Five Stages of Greek Religion" by Gilbert Murray
Aster, Bishop of Amasis (a town in Asiatic Turkey), describes these Oriental hangings in one of his homilies.
"Needlework As Art" by Marian Alford
On the other hand, Aratus kept the Pleiades distinct from Taurus, but Hipparchus reduced these stars to an asterism.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 2" by Various
The black aster beetle is fond of the flowers, and is quite a pest when very abundant.
"The Gladiolus" by Matthew Crawford
These are summer's flowers for remembrance, the goldenrod and asters.
"Old Plymouth Trails" by Winthrop Packard
Iron-weed, which looks like an overgrown aster, has the same intense purple-blue color, and a royal profusion of flowers.
"A Year in the Fields" by John Burroughs
The aster consists of two crossed half-hoops of silver and is used to place over the wafer.
"Encyclopaedia Britannica, 11th Edition, Volume 7, Slice 3" by Various
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In poetry:

Fringing the stream, at every turn
Swung low the waving fronds of fern;
From stony cleft and mossy sod
Pale asters sprang, and golden-rod.
"The Seeking Of The Waterfall" by John Greenleaf Whittier
Verbenas, dahlias, asters, scarlet cannas
Like torches flaming tall;
(Methought the fair, old face, enframed in silver,
The sweetest flower of all!)
"Afterbloom" by Leigh Gordon Giltner
THE glory has passed from the goldenrod's plume,
The purple-hued asters still linger in bloom
The birch is bright yellow, the sumachs are red,
The maples like torches aflame overhead.
"At The Turn Of The Road" by Oliver Wendell Holmes
Then you will touch at the bedside, torn in two,
Gold curls now deftly intricate with gray
As the windowpane extends a fear to you
From one peeled aster drenched with the wind all day.
"Death Of Little Boys" by Allen Tate
For I will tell, with wonted words,
A tale of two that autumn birds
Had led beneath oblivious skies,
Who plucked the wilding asters rare,
And peered from grasses like your hair
To distance blue as your blue eyes.
"Apologia" by Clark Ashton Smith
And the dead leaves lie huddled and still,
No longer blown hither and thither;
The last long aster is gone;
The flowers of the witch-hazel wither;
The heart is still aching to seek,
But the feel question 'Whither?'
"Reluctance" by Robert Frost

In news:

Lunch With the Aster 's.
GREEN THUMB — Asters are a great way to add color to your autumn garden.
"Unlike the fall-blooming asters , this one pumps out flowers all summer long – much to the delight of garden butterflies.".
Intrinsic Perennial Gardens announces its second aster introduction.
Aster First Snow from Intrinsic Perennial Gardens.
It's a bus- aster on Livingston Street thanks to Fulton Mall rebuild.
Aster Data Pushes MapReduce for Enterprises.
In an earlier version of this story, the name of Aster 's nCluster product was misspelled.
Fall aster is a dependable performer in our central Texas climate.
Aster Aweke By Jeff Tamarkin.
This Ethiopian beauty's Aster and Kabu albums show why she's sometimes been dubbed the "African Aretha Franklin.".
There's no mistaking Aster Aweke's primary influences.
Aster First Snow from Intrinsic Perennial Gardens.
Michigan State researchers share the effects of ConTego Pro spray concentrations on drought stress tolerance of finished potted garden chrysanthemums and asters.
Deeply integrated Aster and Apache Hadoop solution delivers SQL and MapReduce analytics with unified system management.
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In science:

In such active filament systems, complex behaviors such as contractions and the formation of asters and spirals have been observed [52, 53, 54, 55, 56]. A phenomenological description of the dynamics of active filament bundles can be used to describe tension generation and contractions in non-organized bundles .
Mechanical oscillations at the cellular scale
Like in the previous sections we use asterics to indicate the values of functions and variables in the steady state.
Generalized models as a universal approach to the analysis of nonlinear dynamical systems
However, there are two disadvantages to increasing the number of stars in our asterisms.
Astrometry.net: Blind astrometric calibration of arbitrary astronomical images
The first is that the probability that all k of the stars in an indexed asterism appear in the image and that all k of the stars in a query asterism appear in the index both decrease with increasing k .
Astrometry.net: Blind astrometric calibration of arbitrary astronomical images
As with all geometric hashing systems, our system is based around a pre-computed index of known asterisms.
Astrometry.net: Blind astrometric calibration of arbitrary astronomical images
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