15760 Albion

15760 Albion
1992 QB1 crop.jpg
Long-exposure image of Albion (circled) taken by the European Southern Observatory in September 1992
Discovery
Discovered byD. C. Jewitt
J. X. Luu
Discovery siteMauna Kea Obs.
Discovery date30 August 1992
Designations
(15760) Albion
Pronunciation/ˈælbiən/
Named after
Albion (mythology by William Blake)
1992 QB1
TNO · cubewano (cold)
distant
Orbital characteristics
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 3
Observation arc26.34 yr (9,621 days)
Aphelion47.042 AU
Perihelion40.809 AU
43.925 AU
Eccentricity0.07096
291.13 yr (106,334 days)
34.041°
0° 0m 12.188s / day
Inclination2.1797°
359.276°
0.7765°
Physical characteristics
Mean diameter
108 km
167 km
0.2 (assumed)
RR (red)
B–V=0.869±0.143
V−R=0.707±0.093
V−I=1.212±0.146
23.3
7.38±0.06 · 7.1

15760 Albion, provisional designation 1992 QB1, was the first trans-Neptunian object to be discovered after Pluto and Charon. Measuring about 108–167 kilometres in diameter, it was discovered in 1992 by David C. Jewitt and Jane X. Luu at the Mauna Kea Observatory, Hawaii. After the discovery, they dubbed the object "Smiley" and it was shortly hailed as the tenth planet by the press. It is a "cold" classical Kuiper belt object and gave rise to the name cubewano for this kind of object, after the QB1 portion of its designation. Decoding its provisional designation, "QB1" reveals that it was the 27th object found in the second half of August of that year.[1] As of January 2018, around 2,400 further objects have been found beyond Neptune, a majority of which are classical Kuiper belt objects. It was named after Albion from William Blake's mythology.

Naming

Orbit of the four outer planets (red) compared to (15760) Albion (blue)

This minor planet was named after Albion from the complex mythology of English poet and painter William Blake (1757–1827). Albion is the island-dwelling primeval man whose division resulted into The Four Zoas: Urizen, Tharmas, Luvah/Orc and Urthona/Los. The name Albion itself derives from the ancient and mythological name of Britain. The official naming citation was published by the Minor Planet Center on 31 January 2018 (M.P.C. 108697).

The discoverers suggested the name "Smiley" for (15760) 1992 QB1, but the name was already used for an asteroid 1613 Smiley, named after the American astronomer Charles Hugh Smiley. It has received the number 15760 and remained unnamed until January 2018 (it was normally referred to simply as "QB1", even though this was technically ambiguous without the year of discovery).

Legacy

The next year in 1993, objects in similar orbits were found including (15788) 1993 SB, (15789) 1993 SC, (181708) 1993 FW, and (385185) 1993 RO.

Over one thousand bodies were found in the Kuiper belt orbiting between about 30 and 50 AU from the Sun in the twenty years after finding 15760 Albion. This revealed a vast belt of bodies, more than just Pluto and Albion themselves. By 2018, over 2000 Kuiper belt objects were discovered.

See also


This page was last updated at 2022-07-27 11:25 UTC. Update now. View original page.

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