706 Hirundo

706 Hirundo
Modelled shape of Hirundo from its lightcurve
Discovery [1]
Discovered byJ. Helffrich
Discovery siteHeidelberg Obs.
Discovery date9 October 1910
Designations
(706) Hirundo
Pronunciation/hɪˈrʌndoʊ/[2]
Named after
Hirundo (swallows)[3]
(Genus of birds)
A910 TF · 1948 AE
1957 DA · 1977 QB
A924 WD · 1910 KX
AdjectivesHirundinian /hɪrənˈdɪniən/[8]
Orbital characteristics [4]
Epoch 31 May 2020 (JD 2459000.5)
Uncertainty parameter 0
Observation arc109.55 yr (40,014 d)
Aphelion3.2601 AU
Perihelion2.1987 AU
2.7294 AU
Eccentricity0.1944
4.51 yr (1,647 d)
124.52°
0° 13m 6.96s / day
Inclination14.431°
325.34°
31.090°
Physical characteristics
22.027±0.005 h[12][a]
  • (92°, 66°) (λ1/β1)[6]
  • (244°, 54°) (λ2/β2)[6]
SMASS = Cgh [4]

706 Hirundo (prov. designation: A910 TF or 1910 KX) is an elongated background asteroid, located in the central region of the asteroid belt. It was discovered by German astronomer Joseph Helffrich at the Heidelberg Observatory on 9 October 1910.[1] The carbonaceous C-type asteroid (Cgh) has a rotation period of 22.0 hours and measures approximately 30 kilometers (19 miles) in diameter. It was named after the bird genus Hirundo, commonly known as swallows.[3]

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  11. ^ a b c Cite error: The named reference Mainzer-2016 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Warner-2001a was invoked but never defined (see the help page).


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