astro.wikisort.org - Asteroid

4947 Ninkasi, provisional designation 1988 TJ₁, is a sub-kilometer asteroid, classified as near-Earth object of the Amor group, approximately 520 meters in diameter. It was discovered on 12 October 1988, by American astronomer Carolyn Shoemaker at Palomar Observatory in California.

4947 Ninkasi

Discovery[1]
Discovered by	C. S. Shoemaker
Discovery site	Palomar Obs.
Discovery date	12 October 1988
Designations
MPC designation	(4947) Ninkasi
Pronunciation	/nɪŋˈkɑːsi/
Named after	Ninkasi
Alternative designations	1988 TJ1
Minor planet category	NEO Amor
Orbital characteristics[2]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc	13659 days (37.40 yr)
Aphelion	1.600761485818500 AU (239.47050977701 Gm)
Perihelion	1.13928481550582 AU (170.43458252051 Gm)
Semi-major axis	1.370023150662 AU (204.9525461487 Gm)
Eccentricity	0.1684192964511710
Orbital period (sidereal)	1.60 yr (585.72 d)
Mean anomaly	337.8470256565600°
Mean motion	0° 36m 52.66s / day
Inclination	15.65150318051197°
Longitude of ascending node	215.4605646418820°
Argument of perihelion	192.858019947831°
Earth MOID	0.148912 AU (22.2769 Gm)
Physical characteristics
Dimensions	520 meters (est. at 0.20)[3]
Spectral type	Sq [2]
Absolute magnitude (H)	18.0[2]

It was named after Ninkasi, the Sumerian goddess of wine and beer, who helped the god Lugalbanda rescue the tablets of fate from the demon Zu.[4]

With an absolute magnitude of 18.0,[2] the asteroid is about 670–1500 meters in diameter.[3] On 2031-Apr-20 the asteroid will pass 0.02917 AU (4,364,000 km; 2,712,000 mi) from Mars.[2]

References

External links

• 4947 Ninkasi at NeoDyS-2, Near Earth Objects—Dynamic Site
  • Ephemeris · Obs prediction · Orbital info · MOID · Proper elements · Obs info · Close · Physical info · NEOCC
• 4947 Ninkasi at ESA–space situational awareness
  • Ephemerides · Observations · Orbit · Physical Properties · Summary
• 4947 Ninkasi at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters

На других языках

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[de] (4947) Ninkasi

(4947) Ninkasi ist ein Asteroid des Amor-Typs, der am 12. Oktober 1988 von C. S. Shoemaker am Palomar-Observatorium entdeckt wurde.

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- [en] 4947 Ninkasi

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[ru] (4947) Нинкаси

(4947) Нинкаси (лат. Ninkasi) — околоземный астероид из группы Амура (I), который был открыт 12 октября 1988 года американским астрономом Кэролин Шумейкер в Паломарской обсерватории и назван в честь шумерской богини Нинкаси, отвечаюшей за пиво и другие алкогольные напитки[1].

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