660 results for Astronomy · 0.077s

en.wikipedia.org/wiki/Axis_mundi

Axis mundi - Wikipedia

astronomy, axis mundi is the Latin term for the axis of Earth between the celestial poles. In a geocentric coordinate system, this is the axis of rotation

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en.wikipedia.org/wiki/Star_catalogue

Star catalogue - Wikipedia

A star catalogue is an astronomical catalogue that lists stars. In astronomy, many stars are referred to simply by catalogue numbers. There are a great

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What is the simplest way to prove that Earth orbits the Sun?

Apr 17, 2015 · Assume you're talking to someone ignorant of the basic facts of astronomy. How would you prove to them that Earth orbits the Sun? Similarly, how would you prove to them that the Moon …

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astronomy - How big a coincidence is the Sun and Moon having …

May 3, 2020 · It's consensus that the very similar apparent sizes of the Moon and the Sun as seen from Earth is a coincidence (as already answered in this site). This provides us with almost exact total solar

en.wikipedia.org/wiki/Spiral_%28disambiguation%29

Spiral (disambiguation) - Wikipedia

around the point. Spiral may also refer to: Spiral galaxy, a type of galaxy in astronomy Spiral Dynamics, a theory of human development Spiral cleavage, a type

en.wikipedia.org/wiki/Metallicity

Metallicity - Wikipedia

In astronomy, metallicity is the abundance of elements present in an object that are heavier than hydrogen and helium. Most of the normal currently detectable

arxiv.org/abs/astro-ph/0606091v1

Failed disk winds; a physical origin for the soft X-ray excess?

The origin of the soft X-ray excess emission observed in many type-1 AGN has been an unresolved problem in X-ray astronomy for over two decades. We develop the model proposed Gierlinski & Done (2004), which models the soft excess with heavily smear...

arxiv.org/abs/1408.0623v1

Detecting the Upturn of the Solar $^8$B Neutrino Spectrum with LENA

LENA (Low Energy Neutrino Astronomy) has been proposed as a next generation 50 kt liquid scintillator detector. The large target mass allows a high precision measurement of the solar $^8$B neutrino spectrum, with an unprecedented energy threshold of...