astro.wikisort.org - Asteroid

133528 Ceragioli, provisional designation 2003 TC₂, is an asteroid of the Koronis family from the outer regions of the asteroid belt, approximately 1.75 kilometers (1.1 miles) in diameter. It was discovered on 4 October 2003, by American astronomer David Healy at the Junk Bond Observatory in Arizona, United States. The likely stony and possibly elongated asteroid has a rotation period of 3.1 hours.[5] It was named for American optician Roger Ceragioli.[1]

133528 Ceragioli

Discovery[1]
Discovered by	D. Healy
Discovery site	Junk Bond Obs.
Discovery date	4 October 2003
Designations
MPC designation	(133528) Ceragioli
Named after	Roger Ceragioli[1] (American optician)
Alternative designations	2003 TC2
Minor planet category	main-belt[1][2] · (outer) Koronis[3][4]
Orbital characteristics[2]
Epoch 27 April 2019 (JD 2458600.5)
Uncertainty parameter 0
Observation arc	17.73 yr (6,476 d)
Aphelion	3.1087 AU
Perihelion	2.6053 AU
Semi-major axis	2.8570 AU
Eccentricity	0.0881
Orbital period (sidereal)	4.83 yr (1,764 d)
Mean anomaly	92.922°
Mean motion	0° 12m 14.76s / day
Inclination	1.2673°
Longitude of ascending node	334.80°
Argument of perihelion	21.722°
Physical characteristics
Mean diameter	1.75 km (calculated)[5]
Synodic rotation period	3.052±0.0159 h[6]
Geometric albedo	0.24 (assumed)[5]
Spectral type	S (assumed)[5]
Absolute magnitude (H)	15.498±0.008 (R)[6] 15.5[1][2]

Orbit and classification

Ceragioli is a member of the Koronis family (605),[3][4] a very large asteroid family with nearly co-planar ecliptical orbits and named after 158 Koronis.[7] It orbits the Sun in the outer asteroid belt at a distance of 2.6–3.1 AU once every 4 years and 10 months (1,764 days; semi-major axis of 2.86 AU). Its orbit has an eccentricity of 0.09 and an inclination of 1° with respect to the ecliptic.[2] The body's observation arc begins with a precovery taken by Spacewatch in September 1998, or 5 years prior to its official discovery observation at the Junk Bond Observatory.[1]

Naming

This minor planet was named after American optician Roger Ceragioli (born 1959) at the Steward Observatory Mirror Laboratory, whose projects include parts of the Bok Telescope and the MODS spectrograph for the Large Binocular Telescope. The official naming citation was published by the Minor Planet Center on 1 June 2007 (M.P.C. 59925).[8]

Physical characteristics

Ceragioli is an assumed stony S-type asteroid,[5] in line with the overall spectral type for members of the Koronis family.[7]

Rotation period

In February 2010, a rotational lightcurve of Ceragioli was obtained from photometric observations in the R-band by astronomers at the Palomar Transient Factory in California. Lightcurve analysis gave a rotation period of 3.052±0.0159 hours with a brightness variation of 0.35 magnitude (U=2), indicative of an elongated shape.[6] Also in February 2010, David Polishook determined a similar period of 3.06±0.04 hours with an amplitude of 0.25 magnitude (U=1+).[9]

Diameter and albedo

The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.24 and calculates a diameter of 1.75 kilometers based on an absolute magnitude of 15.95.[5]

References

External links

• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• Dictionary of Minor Planet Names, Google books
• Discovery Circumstances: Numbered Minor Planets (130001)-(135000) – Minor Planet Center
• 133528 Ceragioli at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 133528 Ceragioli at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

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