astro.wikisort.org - Asteroid

28439 Miguelreyes, provisional designation 2000 AM₃₀, is a background asteroid from the central region of the asteroid belt, approximately 3.9 kilometers in diameter. The asteroid was discovered on 3 January 2000, by the LINEAR team at Lincoln Lab's ETS in Socorro, New Mexico, United States.[2] It was named for Filipino student Miguel Reyes, a 2011 ISEF awardee.

28439 Miguelreyes

Discovery [1]
Discovered by	LINEAR
Discovery site	Lincoln Lab's ETS
Discovery date	3 January 2000
Designations
MPC designation	(28439) Miguelreyes
Named after	Miguel Reyes (2011 ISEF awardee)[2]
Alternative designations	2000 AM30 · 1998 UH41
Minor planet category	main-belt · (middle) background
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc	20.64 yr (7,537 days)
Aphelion	3.0242 AU
Perihelion	2.5050 AU
Semi-major axis	2.7646 AU
Eccentricity	0.0939
Orbital period (sidereal)	4.60 yr (1,679 days)
Mean anomaly	222.06°
Mean motion	0° 12m 51.84s / day
Inclination	4.3355°
Longitude of ascending node	87.853°
Argument of perihelion	118.95°
Physical characteristics
Mean diameter	3.851±0.145 km[3]
Geometric albedo	0.249±0.071[3]
Absolute magnitude (H)	14.4[1]

Orbit and classification

Miguelreyes is a non-family from the main belt's background population. It orbits the Sun in the central asteroid belt at a distance of 2.5–3.0 AU once every 4 years and 7 months (1,679 days). Its orbit has an eccentricity of 0.09 and an inclination of 4° with respect to the ecliptic.[1]

The asteroid's observation arc begins almost 4 years prior to its official discovery observation, with a precovery taken by the Steward Observatory's Spacewatch survey at Kitt Peakt in April 1996.[2]

Physical characteristics

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Miguelreyes measures 3.851 kilometers in diameter and its surface has an albedo of 0.249.[3]

Lightcurves

As of 2018, Miguelreyes's spectral type, as well as its rotation period and shape remain unknown.[1][4]

Naming

This minor planet was named in honor of Miguel Arnold Silverio Reyes, a Philippine high-school student from Manila, who was awarded second place in the 2011 Intel International Science and Engineering Fair for his materials and bioengineering project entitled "Synthesis and Characterization of Composite Plastics from Thermoplastic Starch and Nano-sized Calcium Phosphate for Film Packaging". His project sought alternatives, such as cornstarch, in making biodegradable plastic for film packaging. He attended the Philippine Science High School in Quezon City, Philippines.[5][6][7]

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
• Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
• Discovery Circumstances: Numbered Minor Planets (25001)-(30000) – Minor Planet Center
• 28439 Miguelreyes at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 28439 Miguelreyes at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

---