heliolongitude

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noun

A longitude described in terms of solar coordinates.

Scrabble 19
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Meanings

nounheliolongitude (plural heliolongitudes)

plural heliolongitudes

  1. astronomyA longitude described in terms of solar coordinates.
    1 more example

    Recent modelling of solar energetic particles (SEPs) propagation through the heliospheric turbulence, also discussed in this workshop, has investigated the role of the pitch-angle scattering and the perpendicular transport in spreading particles in heliolongitude, as shown by multi-spacecraft measurements (STEREO A/B, ACE, SOHO, etc.) at 1 AU in various energy ranges.

    2015, F. Fraschetti, “Cross-field transport and pitch-angle anisotropy of solar energetic particles in MHD turbulence”, in arXiv

Origin

From helio- + longitude.

Full word history & related roots →
Cite this entry
APA

heliolongitude. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/heliolongitude

MLA

“heliolongitude.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/heliolongitude. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “heliolongitude,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/heliolongitude.

Source: heliolongitude on Wiktionary, CC BY-SA 4.0.