| 词条 | (181708) 1993 FW |
| 释义 |
| minorplanet=yes | background=#C2E0FF | name=(181708) 1993 FW | discovery_ref= | discoverer=David C. Jewitt, Jane X. Luu | discovered=28 March 1993 | alt_names= | mp_category=Trans-Neptunian object (cubewano)[1] | epoch=13 January 2016 (JD 2457400.5)[2] | semimajor={{Convert|43.967|AU|Tm|abbr=on}} | perihelion={{Convert|41.642|AU|Tm|abbr=on}} | aphelion={{Convert|46.293|AU|Tm|abbr=on|lk=on}} | eccentricity=0.052899 | period=291.54 yr (106487 d) | inclination=7.7336° | asc_node=187.837° | arg_peri=40.180° | mean_anomaly=351.305° | avg_speed=4.489 km/s | dimensions=175 km[3] 241 km[4] | mass= | density= | surface_grav= | escape_velocity= | rotation= | spectral_type= | albedo= | magnitude= | abs_magnitude=7.0 | single_temperature= | mean_motion={{Deg2DMS|0.0033807|sup=ms}} / day | orbit_ref=[2] | observation_arc=5456 days (14.94 yr) | uncertainty=3 | jupiter_moid={{Convert|36.2333|AU|Tm|abbr=on}} }}(181708) 1993 FW was the second trans-Neptunian object to be discovered after Pluto and Charon, the first having been 15760 Albion, formally known as {{mpl|15760|1992 QB|1}}. It was discovered in 1993 by David C. Jewitt and Jane X. Luu at the Mauna Kea Observatory, Hawaii.[5] Following its discovery it was nicknamed 'Karla' by its discoverers.[6] Mike Brown lists it as possibly a dwarf planet on his website.[4] See also
References1. ^{{cite web |author=Marc W. Buie |author-link=Marc W. Buie |title=Orbit Fit and Astrometric record for 181708 |publisher=SwRI (Space Science Department) |url=http://www.boulder.swri.edu/~buie/kbo/astrom/181708.html |accessdate=2018-02-18}} 2. ^1 {{cite web|title=JPL Small-Body Database Browser|publisher=Jet Propulsion Laboratory|url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=181708|accessdate=7 April 2016}} 3. ^{{cite web|title=List of Known Trans-Neptunian Objects |publisher=Wm. Robert Johnston |url=http://www.johnstonsarchive.net/index.html |accessdate=2015-01-03 |archiveurl=https://www.webcitation.org/6VPwjAe8E?url=http://www.johnstonsarchive.net/index.html |archivedate=2015-01-08 |deadurl=no |df= }} 4. ^1 {{cite web|title=How many dwarf planets are there in the outer solar system?|publisher=Mike Brown|url=http://web.gps.caltech.edu/~mbrown/dps.html|accessdate=2015-01-03}} 5. ^{{cite journal|title=1993 FW|author=BS Marsden|publisher=Minor Planet Center|bibcode=1993IAUC.5730....1L|date=1993|author2=Jewitt, D.|author3=Marsden, B. G.|volume=5730|page=1|journal=IAU Circ.}} 6. ^{{cite news |title=Space body given name of Le Carre character: Astronomers discover planetesimal Karla |url=https://www.independent.co.uk/news/uk/space-body-given-name-of-le-carre-character-astronomers-discover-planetesimal-karla-1456581.html |newspaper=The Independent |date=April 20, 1993}} External links
4 : Classical Kuiper belt objects|Discoveries by David C. Jewitt|Discoveries by Jane Luu|Astronomical objects discovered in 1993 |
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