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  2. Name conflicts in astronomy - Wikipedia

    en.wikipedia.org/wiki/Name_conflicts_in_astronomy

    Some of these bodies have exactly the same name, referring to the same mythological character. The earliest such conflicts possibly arose through not considering certain mythological names as "official"; for instance, the names Io, Europa, Ganymede and Callisto for the Galilean satellites of Jupiter were not used in astronomical literature of a certain era, their place being taken by Jupiter I ...

  3. Observational history of comets - Wikipedia

    en.wikipedia.org/.../Observational_history_of_comets

    Even after Johannes Kepler had determined in 1609 that the planets moved about the Sun in elliptical orbits, he was reluctant to believe that the laws that governed the motions of the planets should also influence the motion of other bodies; he believed that comets travel among the planets along straight lines, and it required Edmond Halley to ...

  4. Comet - Wikipedia

    en.wikipedia.org/wiki/Comet

    A comet is an icy, small Solar System body that warms and begins to release gases when passing close to the Sun, a process called outgassing.This produces an extended, gravitationally unbound atmosphere or coma surrounding the nucleus, and sometimes a tail of gas and dust gas blown out from the coma.

  5. Naming of comets - Wikipedia

    en.wikipedia.org/wiki/Naming_of_comets

    The Great January Comet of 1910, named after the date it appeared. Before any systematic naming convention was adopted, comets were named in a variety of ways. Prior to the early 20th century, most comets were simply referred to by the year when they appeared e.g. the "Comet of 1702".

  6. Astronomical naming conventions - Wikipedia

    en.wikipedia.org/wiki/Astronomical_naming...

    The Roman numbering system arose with the very first discovery of natural satellites other than Earth's: Galileo referred to the Galilean moons as I through IV (counting from Jupiter outward), in part to spite his rival Simon Marius, who had proposed the names now adopted, after his own proposal to name the bodies after members of the Medici ...

  7. List of astronomical objects named after people - Wikipedia

    en.wikipedia.org/wiki/List_of_astronomical...

    This is a list of astronomical objects named after people. While topological features on Solar System bodies — such as craters, mountains, and valleys — are often named after famous or historical individuals, many stars and deep-sky objects are named after the individual(s) who discovered or otherwise studied it.

  8. Babylonian astronomy - Wikipedia

    en.wikipedia.org/wiki/Babylonian_astronomy

    The god Ea was the one believed to send the omens. Concerning the severity of omens, eclipses were seen as the most dangerous. [16] The Enuma Anu Enlil is a series of cuneiform tablets that gives insight on different sky omens Babylonian astronomers observed. [17] Celestial bodies such as the Sun and Moon were given significant power as omens.

  9. Early Greek cosmology - Wikipedia

    en.wikipedia.org/wiki/Early_Greek_cosmology

    Near the edges of the earth is a region inhabited by fantastical creatures, monsters, and quasi-human beings. [6] Once one reaches the ends of the earth they find it to be surrounded by and delimited by an ocean (), [7] [8] as is seen in the Babylonian Map of the World, although there is one main difference between the Babylonian and early Greek view: Oceanus is a river and so has an outer ...