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{{Infobox planet
| minorplanet=yes
| background=#D6D6D6
| name=146 Lucina
| image= 146Lucina (Lightcurve Inversion).png
| image_size = 250
| caption=A three-dimensional model of 146 Lucina based on its light curve.
| discovery_ref=[1]
| discoverer=Alphonse Borrelly
| discovered=8 June 1875
| mpc_name=(146) Lucina
| alt_names=
| pronounced={{IPAc-en|lj|uː|'|s|aɪ|n|ə}} or as Latin Lūcīna[2]
| mp_category=Main belt
| orbit_ref=[3][4]
| epoch=31 July 2016 (JD 2457600.5)
| semimajor={{Convert|2.71793|AU|Gm|abbr=on}}
| perihelion={{Convert|2.53641|AU|Gm|abbr=on}}
| aphelion={{Convert|2.89945|AU|Gm|abbr=on|lk=on}}
| eccentricity=0.066786
| period=4.48 yr (1636.6 d)
| inclination=13.0947°
| asc_node=83.9692°
| arg_peri=146.982°
| mean_anomaly=198.102°
| avg_speed=18.04 km/s
| dimensions={{val|132.21|2.4|ul=km}}[4]
131.893 km[6]
| mass=2.4{{e|18}} kg
| density=2.0 g/cm³
| surface_grav=0.0369 m/s²
| escape_velocity=0.0699 km/s
| sidereal_day=
| axial_tilt=
| pole_ecliptic_lat=
| pole_ecliptic_lon=
| spectral_type=C[6] (Tholen)
| abs_magnitude=8.20,[4] 8.277[6]
| albedo={{val|0.0531|0.002}}[4]
0.0496 ± 0.0107[6]
| single_temperature=~169 K
| mean_motion={{Deg2DMS|0.219962|sup=ms}} / day
| observation_arc=130.35 yr (47610 d)
| uncertainty=0
| rotation={{Convert|18.557|h|d|abbr=on|lk=on}}
| moid={{Convert|1.53233|AU|Gm|abbr=on}}
| jupiter_moid={{Convert|2.14062|AU|Gm|abbr=on}}
| tisserand=3.319
}}Lucina (minor planet designation: 146 Lucina) is a main-belt asteroid that was discovered by Alphonse Borrelly on June 8, 1875, and named after Lucina, the Roman goddess of childbirth. It is large, dark and has a carbonaceous composition. The spectra of the asteroid displays evidence of aqueous alteration.[Photometric observations of this asteroid made during 1979 and 1981 gave a light curve with a period of 18.54 hours.[13]]Two stellar occultations by Lucina have been observed so far, in 1982 and 1989. During the first event, a possible small satellite with an estimated 5.7 km diameter was detected at a distance of 1,600 km from 146 Lucina.[14] A 1992 search using a CCD failed to discover a satellite larger than 0.6 km, although it may have been obscured by occultation mask.[15] Further evidence for a satellite emerged in 2003, this time based on astrometric measurements.[16] References1. ^
2. ^
3. ^{{Cite web |url=ftp://ftp.lowell.edu/pub/elgb/astorb.html |website=astorb |title=The Asteroid Orbital Elements Database |publisher=Lowell Observatory}}
4. ^1 2 3 4 {{Citation | first1 = Donald K. | last1 = Yeomans | title = 146 Lucina | work = JPL Small-Body Database Browser | publisher = NASA Jet Propulsion Laboratory | url = http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=146 | accessdate= 12 May 2016 | postscript= .}}
5. ^1 2 3 4 {{Citation | last1 = Pravec | first1 = P. | last2 = Harris | first2 = A. W. | last3 = Kusnirak | first3 = P. | last4 = Galad | first4 = A. | last5 = Hornoch | first5 = K. | display-authors = 1 | title = Absolute Magnitudes of Asteroids and a Revision of Asteroid Albedo Estimates from WISE Thermal Observations | work = Asteroids, Comets, Meteors 2012, Proceedings of the conference held May 16–20, 2012 in Niigata, Japan | issue = 1667 |date=May 2012 | bibcode = 2012LPICo1667.6089P | postscript= .}} See Table 4.
6. ^1 {{Citation | last1 = Arlot | first1 = J. E. | last2 = Lecacheux | first2 = J. | last3 = Richardson | first3 = Ch. | last4 = Thuillot | first4 = W. | display-authors = 1 | title = A possible satellite of (146) Lucina | work = Icarus | volume = 61 | pages = 224–231 |date=February 1985 | doi = 10.1016/0019-1035(85)90104-6 | bibcode = 1985Icar...61..224A | postscript= .}}
7. ^1 {{Citation | last1 = Stern | first1 = S. Alan | last2 = Barker | first2 = Edwin S. | title = A CCD search for distant satellites of asteroids 3 Juno and 146 Lucina | work = In Lunar and Planetary Inst., Asteroids, Comets, Meteors 1991 | pages = 577–581 |date=December 1992 | bibcode = 1992acm..proc..577S | postscript= .}}
8. ^1 {{Citation | last1 = Schober | first1 = H. J. | title = The large C-type asteroids 146 Lucina and 410 Chloris, and the small S-type asteroids 152 Atala and 631 Philippina - Rotation periods and lightcurves | work = Astronomy and Astrophysics Supplement Series | volume = 53 | pages = 71–75 |date=July 1983 | bibcode = 1983A&AS...53...71S | postscript= .}}
9. ^1 {{Citation | last1 = Kikwaya | first1 = J.-B. | last2 = Thuillot | first2 = W. | last3 = Rocher | first3 = P. | last4 = Viera Martins | first4 = R. | last5 = Arlot | first5 = J.-E. | last6 = Angeli | first6 = Cl. | display-authors = 1 | title = Does 146 Lucina Have a Satellite? An Astrometric Approach | work = 34th Annual Lunar and Planetary Science Conference, March 17–21, 2003, League City, Texas, abstract no.1214 |date=March 2003 | bibcode = 2003LPI....34.1214K | postscript= .}}
[4][5][6][7][8][9]
}} External links - {{AstDys|146}}
- {{JPL small body}}
{{Use dmy dates|date=September 2018}}{{Minor planets navigator |145 Adeona |number=146 |147 Protogeneia}}{{Small Solar System bodies}}{{DEFAULTSORT:Lucina}}{{C-beltasteroid-stub}} 8 : Background asteroids|Discoveries by Alphonse Borrelly|Minor planets named from Roman mythology|Named minor planets|Objects observed by stellar occultation|C-type asteroids (Tholen)|Ch-type asteroids (SMASS)|Astronomical objects discovered in 1875 |