From Wikipedia, the free encyclopedia
(155140) 2005 UD (
provisional designation 2005 UD ) is an
asteroid on an
eccentric orbit, classified as a
near-Earth object of the
Apollo group . It was discovered on 22 October 2005, by the
Catalina Sky Survey at the
Catalina Station in Arizona, United States. 2005 UD is thought to be a possible fragment of
3200 Phaethon due to its similar orbit,
[8]
[9] although it is not dynamically associated with the
Geminid meteor stream produced by Phaethon.
[10]
[11]
Due to 2005 UD's highly eccentric orbit, it experiences extreme temperature variations up to 975 K (702 °C; 1,295 °F) at
perihelion , leading to
thermal fracturing of its surface
regolith and ejection of dust particles.
[12] However, no activity from 2005 UD has been observed as of yet, though it has been suspected that it could be the inactive
parent body of the Daytime Sextantids
meteor shower .
[7]
[13] 2005 UD and Phaethon share a bluish surface color at
visible wavelengths, but differ at
near-infrared wavelengths where 2005 UD appears redder than Phaethon.
[13]
2005 UD will pass 0.0558
AU (8.35 million
km ) from
Mars on 20 July 2024.
[3]
Potential Family Members
[14]
Object
Size
Earth
MOID (
AU )
Perihelion (AU)
Mars MOID (AU)
3200 Phaethon
6 km
0.02
AU (3.0 million
km )
0.14 AU (21 million km)
0.14 AU (21 million km)
(155140) 2005 UD
[3]
1.3 km
0.08 AU (12 million km)
0.16 AU (24 million km)
0.04 AU (6.0 million km)
[1]
(225416) 1999 YC
[15]
1.7 km
0.25 AU (37 million km)
0.24 AU (36 million km)
0.10 AU (15 million km)
See also
References
^
a
b
c
d
"(155140) = 2005 UD" . Minor Planet Center . International Astronomical Union. Retrieved 5 September 2021 .
^
a
b
"MPEC 2005-U22 : 2005 UD" . Minor Planet Electronic Circular .
Minor Planet Center . 23 October 2005. Retrieved 5 September 2021 .
^
a
b
c
d
e
"JPL Small-Body Database Browser: 155140 (2005 UD)" (2022-10-31 last obs.).
Jet Propulsion Laboratory . Retrieved 5 September 2021 .
^
"MPEC 2005-X10 : 2005 UD" . Minor Planet Electronic Circular .
Minor Planet Center . 2 December 2005. Retrieved 5 September 2021 .
^
a
b
c
d
e
f Huang, J.-N.; Muinonen, K.; Chen, T.; Wang, X.-B. (June 2020). "Photometric study for near-Earth asteroid (155140) 2005 UD". Planetary and Space Science . 195 : 105120.
arXiv :
2008.11442 .
Bibcode :
2021P&SS..19505120H .
doi :
10.1016/j.pss.2020.105120 .
S2CID
221319706 .
^ Kinoshita, D.; Ohtsuka, K.; Sekiguchi, T.; Watanabe, J.; Ito, H.; Arakida, T.; et al. (May 2007).
"Surface heterogeneity of 2005 UD from photometric observations" (PDF) . Astronomy & Astrophysics . 466 (3): 1153–1158.
Bibcode :
2007A&A...466.1153K .
doi :
10.1051/0004-6361:20066276 .
S2CID
55255286 .
^
a
b Devogèle, Maxime; MacLennan, Eric; Gustafsson, Annika; Moskovitz, Nicholas; Chatelain, Joey; Borisov, Galin; et al. (June 2020).
"New Evidence for a Physical Link between Asteroids (155140) 2005 UD and (3200) Phaethon" . The Planetary Science Journal . 1 (1): 15.
Bibcode :
2020PSJ.....1...15D .
doi :
10.3847/PSJ/ab8e45 .
S2CID
219521769 .
^ Ohtsuka, K.; Sekiguchi, T.; Kinoshita, D.; Watanabe, J.-I.; Ito, T.; Arakida, H.; Kasuga, T. (May 2006).
"Apollo asteroid 2005 UD: split nucleus of (3200) Phaethon?" (PDF) . Astronomy & Astrophysics . 450 (3): L25–L28.
Bibcode :
2006A&A...450L..25O .
doi :
10.1051/0004-6361:200600022 .
S2CID
120802314 .
^ Jewitt, David; Hsieh, Henry (October 2006). "Physical Observations of 2005 UD: A Mini-Phaethon". The Astronomical Journal . 132 (4): 1624–1629.
Bibcode :
2006AJ....132.1624J .
doi :
10.1086/507483 .
S2CID
121479835 .
^ Hanuš, J.; Vokrouhlický, D.; Delbo', M.; Farnocchia, D.; Polishook, D.; Pravec, P.; et al. (December 2018).
"(3200) Phaethon: Bulk density from Yarkovsky drift detection" (PDF) . Astronomy & Astrophysics . 620 : L8.
arXiv :
1811.10953 .
Bibcode :
2018A&A...620L...8H .
doi :
10.1051/0004-6361/201834228 .
S2CID
119378304 .
^ Ryabova, G. O.; Avdyushev, V. A.; Williams, I. P. (May 2019). "Asteroid (3200) Phaethon and the Geminid meteoroid stream complex". Monthly Notices of the Royal Astronomical Society . 485 (3): 3378–3385.
Bibcode :
2019MNRAS.485.3378R .
doi :
10.1093/mnras/stz658 .
S2CID
126849510 .
^ MacLennan, Eric; Toliou, Athanasia; Granvik, Mikael (September 2020). "Dynamical evolution and thermal history of asteroids (3200) Phaethon and (155140) 2005 UD". Icarus . 366 : 114535.
arXiv :
2010.10633 .
Bibcode :
2021Icar..36614535M .
doi :
10.1016/j.icarus.2021.114535 .
S2CID
224814434 .
^
a
b
c Kareta, Theodore; Reddy, Vishnu; Pearson, Neil; Sanchez, Juan A.; Harris, Walter M. (September 2021).
"Investigating the Relationship between (3200) Phaethon and (155140) 2005 UD through Telescopic and Laboratory Studies" . The Planetary Science Journal . 2 (5): 190.
arXiv :
2109.01020 .
Bibcode :
2021PSJ.....2..190K .
doi :
10.3847/PSJ/ac1bad .
^ Cukier, W. Z.; Szalay, J. R. (June 1, 2023).
"Formation, Structure, and Detectability of the Geminids Meteoroid Stream" . The Planetary Science Journal . 4 (6): 109.
arXiv :
2306.11151 .
doi :
10.3847/psj/acd538 .
ISSN
2632-3338 .
^
"JPL Small-Body Database Browser: 225416 (1999 YC)" .
Jet Propulsion Laboratory .
External links