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A volume of luminous, predominantly hydrogen gas that appears on the sun above the chromosphere; occurs only in the region of horizontal magnetic fields because these fields support the prominences against solar gravity.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.



a luminous formation of incandescent gases visible at the edge of the solar disk. When viewed against the background of the solar disk, prominences appear as dark filaments.

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in periodicals archive ?
The prominent relative was told that this was Ahmad's chance and that he should be helped to obtain it.
For PP-190, prominent contenders are PTI's Rai Hammad Aslam, PML-N's Rai Ali Noor, Ch Ghulam Raza Rubera, MMA's Dr Liaquat Ali Kausar, Arif Khan Lashari and Noorul Ain Rai, the wife of former PTI MPA Ch Masood Shafaq Rubera.
A group of prominent architects and urban planners staged a presentation featuring major Japanese cities and landmark buildings, including Hiroaki Ohtani, Casa Akira, Hiro Yamashita and Atelier Tokauto.
Prominent Placement's search engine optimization (SEO) and pay-per-click (PPC) services will be scaled back to the bare essentials to launch these companies on their search marketing journey.
Prominent figures in Wadi Khaled held a meeting calling on officials to ensure protection of the border, expressing their fear of possible infiltration by a third party and the incitement of civil strife, which they said could lead to a military interference in the area.
However, as is the case with any reparative or regenerative epithelium, enlarged nuclei, prominent nucleoli, apoptosis, and mitotic figures can be seen (figure 3).
In particular, the notion of victimisation, the theme of the resistance to outsiders and external as well as internal enemies are prominent throughout the period under discussion.
A member of ENGHC's board, Shaheen is a prominent engineer and a geologist.
Since that time newspapers and especially CBC radio have carried regular reports on the so-called Cornwall conspiracy, reputedly involving prominent members of the Catholic clergy.
Recently, the International Association of Business Communicators (IABC) compared its active membership roster against a list of prominent business communicators from across the country I am writing today because your name, as it appeared on the business communicator's list, was missing from the IABC membership roster.
A magnificent bronze head of the elder Robeson has a prominent place in the family living room, and on one wall is a colorful poster from a 1973 seventy-fifth birthday tribute to his father held at Carnegie Hall.