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864 Aase
Discovery
Discovered by	K. Reinmuth
Discovery site	Heidelberg
Discovery date	30 September 1921
Designations
MPC designation	(864) Aase
Pronunciation	English: /ˈɔːsə/ AW-sə; Norwegian: [ˈôːsə]
Alternative designations	A921 SB; 1944 RC;; 1967 RA1; 1970 PC
Orbital characteristics
	Epoch 31 July 2016 (JD 2457600.5)
	Uncertainty parameter 0
Observation arc	94.55 yr (34533 days)
Aphelion	2.6300 AU (393.44 Gm)
Perihelion	1.7863 AU (267.23 Gm)
Semi-major axis	2.2081 AU (330.33 Gm)
Eccentricity	0.19102
Orbital period (sidereal)	3.28 yr (1198.5 d)
Mean anomaly	327.686°
Mean motion	0° 18m 1.332s / day
Inclination	5.4506°
Longitude of ascending node	163.155°
Argument of perihelion	193.982°
Earth MOID	0.781473 AU (116.9067 Gm)
Jupiter MOID	2.80382 AU (419.446 Gm)
TJupiter	3.630
Physical characteristics
Mean diameter	7.25±0.35 km
Synodic rotation period	3.2329 h (0.13470 d)
Absolute magnitude (H)	12.87

864 Aase is an S-type asteroid^[1] belonging to the Flora family in the Main Belt.

The object A917 CB discovered 13 February 1917, by Max Wolf was named 864 Aase, and the object 1926 XB discovered 7 December 1926, by Karl Reinmuth was named 1078 Mentha. In 1958 it was discovered that these were one and the same object. In 1974, this was resolved by keeping the name 1078 Mentha and reusing the name and number 864 Aase for the object 1921 KE, discovered 30 September 1921, by Karl Reinmuth. Aase refers to the character from Henrik Ibsen's play Peer Gynt.^{[citation needed]}