| 词条 | 550 Senta |
| 释义 |
| minorplanet= yes | image= 550Senta (Lightcurve Inversion).png | image_size = 265 | caption= A three-dimensional model of 550 Senta based on its light curve | background= #D6D6D6 | name= 550 Senta | mpc_name= (550) Senta | alt_names= 1904 PL | discoverer= Max Wolf | discovered= 16 November 1904 | discovery_site= Heidelberg | epoch= 31 July 2016 (JD 2457600.5) | orbit_ref= | eccentricity= 0.22287 | semimajor= {{Convert|2.5884|AU|Gm|abbr=on}} | perihelion= {{Convert|2.0115|AU|Gm|abbr=on}} | aphelion= {{Convert|3.1653|AU|Gm|abbr=on|lk=on}} | period= 4.16 yr (1521.1 d) | inclination= 10.108° | asc_node= 270.702° | arg_peri= 45.342° | mean_anomaly= 17.4133° | rotation= {{Convert|20.555|h|d|abbr=on|lk=on}}[3] | mean_motion= {{Deg2DMS|0.23667|sup=ms}} / day | observation_arc= 115.33 yr (42124 d) | uncertainty= 0 | abs_magnitude= 9.37 | albedo= {{val|0.2215|0.052}} | mean_radius= {{val|18.875|1.9}} km }} Senta (minor planet designation: 550 Senta) is a minor planet orbiting the Sun that was discovered by German astronomer Max Wolf on November 16, 1904, from Heidelberg. Photometric observations of this asteroid made at the Torino Observatory in Italy during 1990–1991 were used to determine a synodic rotation period of 20.555 ± 0.01 hours.[3]In light of Max Wolf's propensity around the time of discovery to name asteroids after operatic heroines, it is likely that the asteroid is named after Senta, the heroine of Richard Wagner's opera The Flying Dutchman. References1. ^1 2 {{Citation | last1 = di Martino | first1 = M. | last2 = Blanco | first2 = C. | last3 = Riccioli | first3 = D. | last4 = de Sanctis | first4 = G. | display-authors = 1 | title = Lightcurves and rotational periods of nine main belt asteroids | work = Icarus | volume = 107 | issue = 2 | pages = 269–275 |date=February 1994 | doi = 10.1006/icar.1994.1022 | bibcode = 1994Icar..107..269D | postscript= .}} [1]}} External links
8 : Background asteroids|Discoveries by Max Wolf|Minor planets named for opera characters|Minor planets named from literature|Named minor planets|Richard Wagner|S-type asteroids (Tholen)|Astronomical objects discovered in 1904 |
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