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— CH. 1 · DISCOVERY AND DESIGNATION —

15760 Albion

~3 min read · Ch. 1 of 5
5 sections
  • David C. Jewitt and Jane X. Luu spotted a faint point of light in the night sky above Mauna Kea Observatory on the 30th of August 1992. Their telescope captured an object orbiting beyond Neptune that had never been seen before. The press immediately called it the tenth planet following the announcement. Scientists assigned it the provisional designation 1992 QB1 to track its position. This code revealed specific details about when and how many objects were found during that half-month. The letter Q indicated discovery between August 16 and 31 while B1 marked it as the twenty-seventh find of that period. The team named the object Smiley for a moment of joy after years of searching. They hoped this name would stick until official approval arrived from astronomers worldwide.

  • The Minor Planet Center published the official naming citation on the 31st of January 2018. Before that date the object remained unnamed despite being known by its number 15760. Discoverers suggested calling it Smiley but another asteroid already bore that title. Charles Hugh Smiley was an American astronomer who lent his name to asteroid 1613. Astronomers needed a new name that honored the mythological roots of the outer solar system. They chose Albion from William Blake's complex mythology spanning 1757 to 1827. Blake described Albion as an island-dwelling primeval man whose division created four distinct entities. These entities included Urizen Tharmas Luvah Orc and Urthona Los. The name also connects to ancient mythological references for Britain itself. This choice linked modern astronomy with centuries-old poetic traditions about the landmass.

  • Scientists estimate the diameter ranges between 108 kilometers and 167 kilometers based on different calculations. Mike Brown suggests a mean diameter of 108 kilometers or roughly 66 miles. He states the object is too small to qualify as a dwarf planet candidate. A generic magnitude-to-diameter conversion assumes an albedo of 0.9 and a magnitude of 7.0. No rotational lightcurve has been obtained from photometric observations as of 2021. Researchers cannot determine its rotation period or pole orientation yet. Its composition remains unknown along with its exact shape. The lack of data prevents definitive classification beyond size estimates. Future telescopes may reveal more details about this distant world.

  • This object established the category known as cold classical Kuiper belt objects. Scientists named these bodies cubewanos after the QB portion of its provisional designation. The term distinguishes them from other trans-Neptunian objects with different orbital characteristics. Albion orbits in a stable region far from Neptune's gravitational influence. It represents one of the earliest examples found in this specific zone. The discovery proved that Pluto was not alone in the outer solar system. This finding shifted how astronomers understood the structure of our planetary neighborhood. They realized vast numbers of icy bodies existed beyond the known planets.

  • The next year in 1993 researchers found similar objects including 15788 1993 SB and 15789 1993 SC. Additional finds included 181708 1993 FW and 385185 1993 RO. Over one thousand bodies were discovered orbiting between 30 and 50 AU from the Sun within twenty years. By January 2018 around 2,400 further objects had been located beyond Neptune. A majority of these are classical Kuiper belt objects. The initial discovery triggered an exponential growth in detection capabilities. Scientists now map a vast belt of bodies rather than isolated points. This expansion revealed more than just Pluto and Albion themselves. The field continues to grow as technology improves observation methods.

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Common questions

When was 15760 Albion discovered?

David C. Jewitt and Jane X. Luu spotted 15760 Albion on the 30th of August 1992 above Mauna Kea Observatory.

What is the official name of object 15760?

The Minor Planet Center published the official naming citation for 15760 Albion on the 31st of January 2018.

How large is 15760 Albion in kilometers?

Scientists estimate the diameter of 15760 Albion ranges between 108 kilometers and 167 kilometers based on different calculations.

Why did astronomers choose the name Albion for 15760?

Astronomers chose the name Albion from William Blake's complex mythology spanning 1757 to 1827 because another asteroid already bore the title Smiley.

Who named 15760 Albion a cubewano?

Scientists named 15760 Albion a cubewano after the QB portion of its provisional designation 1992 QB1.