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  2. Astrological symbols - Wikipedia

    en.wikipedia.org/wiki/Astrological_symbols

    Name Image Text Unicode Angle Ratio Explanation Conjunction ☌ U+260C: 0°-Two or more planets in the same house (zodiacal sign). A circle with a line implying two objects are aligned (or, the starting point of an angle) Vigintile: V: V: U+0056: 18° 20: Also known as semidecile. SD: SD: U+0053 U+0044 Semisextile ⚺ U+26BA: 30° 12: One sign ...

  3. Astrology - Wikipedia

    en.wikipedia.org/wiki/Astrology

    The names of the signs (e.g. Greek 'Krios' for Aries, Hindi 'Kriya'), the planets (e.g. Greek 'Helios' for Sun, astrological Hindi 'Heli'), and astrological terms (e.g. Greek 'apoklima' and 'sunaphe' for declination and planetary conjunction, Hindi 'apoklima' and 'sunapha' respectively) in Varaha Mihira's texts are considered conclusive ...

  4. Glossary of astronomy - Wikipedia

    en.wikipedia.org/wiki/Glossary_of_astronomy

    A-type star In the Harvard spectral classification system, a class of main-sequence star having spectra dominated by Balmer absorption lines of hydrogen. Stars of spectral class A are typically blue-white or white in color, measure between 1.4 and 2.1 times the mass of the Sun, and have surface temperatures of 7,600–10,000 kelvin.

  5. Your Sun Sign vs Moon Sign: Your Cosmic Identity - AOL

    www.aol.com/lifestyle/sun-sign-vs-moon-sign...

    Your Sun sign and Moon sign are equally important but very different.

  6. Why 'Cosmic Cobalt' Is Our Color of the Year for 2025

    www.aol.com/lifestyle/why-cosmic-cobalt-color...

    Eventually, a less costly pigment was developed from cobalt ores, giving the color its present-day name. Cosmic Cobalt has been a favorite color for artists of every era. Getty Images/Wikimedia ...

  7. Vacuum energy - Wikipedia

    en.wikipedia.org/wiki/Vacuum_energy

    However, in quantum electrodynamics, consistency with the principle of Lorentz covariance and with the magnitude of the Planck constant suggests a much larger value of 10 113 joules per cubic meter. This huge discrepancy is known as the cosmological constant problem or, colloquially, the "vacuum catastrophe."

  8. Cosmological constant - Wikipedia

    en.wikipedia.org/wiki/Cosmological_constant

    This ratio is w = −1 for the cosmological constant used in the Einstein equations; alternative time-varying forms of vacuum energy such as quintessence generally use a different value. The value w = −1.028 ± 0.032, measured by the Planck Collaboration (2018) [18] is consistent with −1, assuming w does not change over cosmic time.

  9. Dark energy - Wikipedia

    en.wikipedia.org/wiki/Dark_energy

    The "cosmological constant" is a constant term that can be added to Einstein field equations of general relativity.If considered as a "source term" in the field equation, it can be viewed as equivalent to the mass of empty space (which conceptually could be either positive or negative), or "vacuum energy".