1215 Boyer

1215 Boyer
Discovery
Discovered by	A. Schmitt
Discovery site	Algiers Obs.
Discovery date	19 January 1932
Designations
MPC designation	(1215) Boyer
Named after	Louis Boyer; (French astronomer)
Alternative designations	1932 BA
Minor planet category	main-belt · (middle); Eunomia · Maria
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	85.46 yr (31,214 days)
Aphelion	2.9213 AU
Perihelion	2.2352 AU
Semi-major axis	2.5783 AU
Eccentricity	0.1331
Orbital period (sidereal)	4.14 yr (1,512 days)
Mean anomaly	324.91°
Mean motion	0° 14m 17.16s / day
Inclination	15.915°
Longitude of ascending node	123.74°
Argument of perihelion	266.02°
Physical characteristics
Dimensions	13.041±0.106 km; 14.705±0.091 km; 17.47 km (calculated); 20.68±0.79 km; 23.06±4.95 km; 24.65±0.36 km
Synodic rotation period	10.36±0.05 h
Geometric albedo	0.116±0.022; 0.147±0.013; 0.17±0.08; 0.21 (assumed); 0.3012±0.1397
Spectral type	Tholen = S · S; B–V = 0.900; U–B = 0.459
Absolute magnitude (H)	11.00; 11.1; 11.14; 11.53±0.15

1215 Boyer, provisional designation 1932 BA, is a stony Eunomian asteroid from the central region of the asteroid belt, approximately 20 kilometers in diameter. It was discovered by astronomer Alfred Schmitt in 1932, who named it after French astronomer and college Louis Boyer.^[11]

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

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[Kim-2014-4] Cite error: The named reference Kim-2014 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-7] Cite error: The named reference AKARI was invoked but never defined (see the help page).

[Nugent-2015-8] Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).

[Masiero-2012-9] Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).

[Veres-2015-10] Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).

[MPC-Boyer-11] Cite error: The named reference MPC-Boyer was invoked but never defined (see the help page).

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