1123 Shapleya information

1123 Shapleya
Discovery
Discovered by	G. Neujmin
Discovery site	Simeiz Obs.
Discovery date	21 September 1928
Designations
MPC designation	(1123) Shapleya
Named after	Harlow Shapley; (American astronomer)
Alternative designations	1928 ST · 1974 QQ2; 2016 FJ6
Minor planet category	main-belt · Flora
Orbital characteristics
	Epoch 16 February 2017 (JD 2457800.5)
	Uncertainty parameter 0
Observation arc	87.81 yr (32,073 days)
Aphelion	2.5741 AU
Perihelion	1.8758 AU
Semi-major axis	2.2250 AU
Eccentricity	0.1569
Orbital period (sidereal)	3.32 yr (1,212 days)
Mean anomaly	207.68°
Mean motion	0° 17m 49.2s / day
Inclination	6.4212°
Longitude of ascending node	79.889°
Argument of perihelion	317.60°
Physical characteristics
Dimensions	10.93±2.29 km; 11.282±0.136 km; 12.003±0.092 km; 12.08 km (taken); 12.084 km; 12.32±0.84 km
Synodic rotation period	20 h (dated); 24 h (dated); 52.92±0.01 h
Geometric albedo	0.2600±0.0630; 0.274±0.044; 0.278±0.037; 0.2797; 0.36±0.19
Spectral type	S
Absolute magnitude (H)	11.55±0.29 · 11.59±0.13 · 11.60 · 11.7

1123 Shapleya, provisional designation 1928 ST, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 21 September 1928, by Russian astronomer Grigory Neujmin at Simeiz Observatory on the Crimean peninsula.^[13] It was named after American astronomer Harlow Shapley.^[2]

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[springer-2] Cite error: The named reference springer was invoked but never defined (see the help page).

[lcdb-3] Cite error: The named reference lcdb was invoked but never defined (see the help page).

[Nugent-2015-4] Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).

[Masiero-2014-5] Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).

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[AKARI-8] Cite error: The named reference AKARI was invoked but never defined (see the help page).

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[Veres-2015-12] Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).

[MPC-Shapleya-13] Cite error: The named reference MPC-Shapleya was invoked but never defined (see the help page).

1123 Shapleya information

and 6 Related for: 1123 Shapleya information

1123 Shapleya

Grigory Neujmin

Harlow Shapley

List of minor planets named after people

1122 Neith

1124 Stroobantia