794 Irenaea information

794 Irenaea
Discovery
Discovered by	J. Palisa
Discovery site	Vienna Obs.
Discovery date	27 August 1914
Designations
MPC designation	(794) Irenaea
Pronunciation	/ɪrɪˈniːə/
Named after	Irene Hillebrand, daughter of Edmund Weiss; (Austrian astronomer )
Alternative designations	A914 QB · 1930 KH; 1936 QK · 1947 QD; 1953 TT2 · 1914 VB
Minor planet category	main-belt · (outer); background ;
Orbital characteristics
	Epoch 31 May 2020 (JD 2459000.5)
	Uncertainty parameter 0
Observation arc	83.12 yr (30,360 d)
Aphelion	4.0559 AU
Perihelion	2.2004 AU
Semi-major axis	3.1281 AU
Eccentricity	0.2966
Orbital period (sidereal)	5.53 yr (2,021 d)
Mean anomaly	31.160°
Mean motion	0° 10m 41.16s / day
Inclination	5.4193°
Longitude of ascending node	160.40°
Argument of perihelion	131.27°
Physical characteristics
Mean diameter	35.703±6.145 km; 35.75±3.6 km; 38.00±1.35 km;
Synodic rotation period	9.14±0.01 h
Geometric albedo	0.045±0.004; 0.046±0.018; 0.0502±0.012;
Spectral type	C (assumed)
Absolute magnitude (H)	11.10; 11.20; 11.30;

794 Irenaea (prov. designation: A914 QB or 1914 VB) is a dark background asteroid from the outer regions of the asteroid belt. It was discovered on 27 August 1914, by Austrian astronomer Johann Palisa at the Vienna Observatory.^[1] The presumed C-type asteroid has a rotation period of 9.1 hours and measures approximately 36 kilometers (22 miles) in diameter. It was likely named after Irene Hillebrand, daughter of Austrian astronomer Edmund Weiss (1837–1917).^[3]

^ ^a ^b ^c ^d Cite error: The named reference MPC-object was invoked but never defined (see the help page).
^ Cite error: The named reference pronounced was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference springer was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference jpldata was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference lcdb was invoked but never defined (see the help page).
^ Cite error: The named reference AstDys-object was invoked but never defined (see the help page).
^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
^ Cite error: The named reference Zappala-family was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference Mainzer-2016 was invoked but never defined (see the help page).
^ ^a ^b Cite error: The named reference SIMPS was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference AKARI was invoked but never defined (see the help page).
^ Cite error: The named reference geneva-obs was invoked but never defined (see the help page).

[MPC-object-1] Cite error: The named reference MPC-object was invoked but never defined (see the help page).

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

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

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

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

[AstDys-object-6] Cite error: The named reference AstDys-object was invoked but never defined (see the help page).

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

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

[Mainzer-2016-9] Cite error: The named reference Mainzer-2016 was invoked but never defined (see the help page).

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

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

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

794 Irenaea information

and 5 Related for: 794 Irenaea information

794 Irenaea

722 Frieda

795 Fini

Johann Palisa

793 Arizona