| 词条 | 80 Sappho |
| 释义 |
| minorplanet= yes | background= #D6D6D6 | name= 80 Sappho | image= 80Sappho (Lightcurve Inversion).png | image_size = 265 | caption= Lightcurve-based 3D-model of Sappho | discoverer= N. R. Pogson | discovery_site= Madras Obs. | discovered= 2 May 1864 | mpc_name= (80) Sappho | named_after = Sappho {{small|(Greek poet)}} | mp_category= main-belt{{·}}{{small|(inner)}} | orbit_ref= | uncertainty= 0 | epoch= 4 September 2017 (JD 2458000.5) | aphelion= {{Convert|2.7544|AU|Gm|abbr=on|lk=on}} | perihelion= {{Convert|1.8370|AU|Gm|abbr=on}} | semimajor= {{Convert|2.2957|AU|Gm|abbr=on}} | eccentricity= 0.19980 | period= 3.48 yr (1270.5 d) | inclination= 8.676° | mean_anomaly= 287.260° | mean_motion= {{Deg2DMS|0.28335|sup=ms}} / day | asc_node= 218.699° | arg_peri= 139.662° | moid= {{Convert|0.843652|AU|Gm|abbr=on}} | jupiter_moid= {{Convert|2.7319|AU|Gm|abbr=on}} | tisserand= 3.553 | pole_ecliptic_lat = 194[2] | pole_ecliptic_lon = −26[2] | physical_ref= | dimensions= {{val|68.563|1.033|ul=km}} | mass= | rotation= 14.03087[2] h | albedo= {{val|0.206|0.014}} 0.185 [1] | spectral_type= S-type asteroid | abs_magnitude= 7.98 | magnitude = 9.38 to 13.6 }} Sappho ({{IPAc-en|ˈ|s|æ|f|oʊ}} {{Respell|SAF|oh}}; minor planet designation: 80 Sappho) is a large main-belt S-type asteroid. It was discovered by Norman Pogson on May 2, 1864, and is named after Sappho, the Greek poet. 13-cm radar observations of this asteroid from the Arecibo Observatory between 1980 and 1985 were used to produce a diameter estimate of {{convert|83|km|mi}}.[8] Hanuš et al. (2013) confirmed the polar axis has ecliptic coordinates {{nowrap|(λ, β)}} = {{nowrap|(194°, −26°)}} and listed a rotation period of 14.03087 h.[2] Sappho (at apparent magnitude 11.8) occulted the magnitude 7.2 star HIP 24403 in the constellation of Taurus on 16 September 2018 at 8:54 UT.[10][2] Sacramento and Salt Lake City were the two major cities located underneath the shadow path. Data from this event will help improve the shape model of the asteroid. During the occultation the asteroid was be roughly {{cvt|1.6|AU|km mi|abbr=on}} from Earth with an uncertainty of ±76 km. References1. ^Asteroid Data Sets {{webarchive|url=https://www.webcitation.org/5mqof7ROl?url=http://www.psi.edu/pds/resource/albedo.html |date=2010-01-17 }} [3][4][5]2. ^http://www.asteroidoccultation.com/2018_09/0916_80_56486.htm 3. ^1 2 3 4 {{citation | title=Sizes of main-belt asteroids by combining shape models and Keck adaptive optics observations | display-authors=1 | last1=Hanuš | first1=J. | last2=Marchis | first2=F. | last3=Ďurech | first3=J. | journal=Icarus | volume=226 | issue=1 | pages=1045−1057 | date=September 2013 | doi=10.1016/j.icarus.2013.07.023 | bibcode=2013Icar..226.1045H | postscript=. | arxiv=1308.0446}} 4. ^1 {{Citation | last1 = Ostro | first1 = S. J. | last2 = Campbell | first2 = D. B. | last3 = Shapiro | first3 = I. I. | display-authors = 1 | title = Mainbelt asteroids - Dual-polarization radar observations | work = Science | volume = 229 | pages = 442–446 |date=August 1985 | doi = 10.1126/science.229.4712.442 | bibcode = 1985Sci...229..442O | postscript= . | pmid=17738665 | issue=4712}} 5. ^1 {{Cite web |url=http://www.poyntsource.com/New/Google/20180916_56486.HTM |title=Interactive GoogleMap of Shadow Path |access-date=2018-02-21 |archive-url=https://archive.today/20180221142956/http://www.poyntsource.com/New/Google/20180916_56486.HTM |archive-date=2018-02-21 |dead-url=no |df= }} }} External links
7 : Background asteroids|Discoveries by Norman Pogson|Minor planets named for people|Named minor planets|S-type asteroids (Tholen)|S-type asteroids (SMASS)|Astronomical objects discovered in 1864 |
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