Global Information706 Hirundo information
 Modelled shape of Hirundo from its lightcurve | |
| Discovery [1] | |
|---|---|
| Discovered by | J. Helffrich |
| Discovery site | Heidelberg Obs. |
| Discovery date | 9 October 1910 |
| Designations | |
MPC designation | (706) Hirundo |
| Pronunciation | /hɪˈrʌndoʊ/[2] |
Named after | Hirundo (swallows)[3] (Genus of birds) |
Alternative designations | A910 TF · 1948 AE 1957 DA · 1977 QB A924 WD · 1910 KX |
Minor planet category |
|
| Adjectives | Hirundinian /hɪrənˈdɪniən/[8] |
| Orbital characteristics [4] | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 109.55 yr (40,014 d) |
| Aphelion | 3.2601 AU |
| Perihelion | 2.1987 AU |
Semi-major axis | 2.7294 AU |
| Eccentricity | 0.1944 |
Orbital period (sidereal) | 4.51 yr (1,647 d) |
Mean anomaly | 124.52° |
Mean motion | 0° 13m 6.96s / day |
| Inclination | 14.431° |
Longitude of ascending node | 325.34° |
Argument of perihelion | 31.090° |
| Physical characteristics | |
Mean diameter |
|
Synodic rotation period | 22.027±0.005 h[12][a] |
Pole ecliptic latitude |
|
Geometric albedo |
|
Spectral type | SMASS = Cgh [4] |
Absolute magnitude (H) |
|
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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