| 词条 | (19308) 1996 TO66 |
| 释义 |
| minorplanet = yes | background = #C2E0FF | image = (19308) 1996 TO66 imaged by NTT cut out.jpg | image_size = 265 | image_alt = (19308) 1996 TO66 imaged by NTT cut out | caption = {{longitem|{{mp|1996 TO|66}} (center top) imaged by the NTT at La Silla in 1998. Other objects are elongated due to the 4-hour-exposure. The horizontal streak is from a geostationary satellite.|style=padding:6px 0;}} | name = {{mp|(19308) 1996 TO|66}} | discoverer = Chadwick Trujillo David Jewitt Jane Luu | discovered = 12 October 1996 | mpc_name = {{mp|(19308) 1996 TO|66}} | alt_names = | mp_category = TNO weak eighth-order 11:19 resonance? | orbit_ref = [2] | epoch = 13 January 2016 (JD 2457400.5) | semimajor = {{Convert|43.157|AU|Tm|abbr=on}} | perihelion = {{Convert|37.939|AU|Tm|abbr=on}} | aphelion = {{Convert|48.375|AU|Tm|abbr=on|lk=on}} | eccentricity = 0.12090 | period = 283.52 yr (103555 d) | inclination = 27.4948° | asc_node = 355.2889° | arg_peri = 239.07° | mean_anomaly = 137.16° | avg_speed = | dimensions = 200 km (assuming a {{nowrap|Haumea-like albedo of 0.7) [3]}} (<902km) [4] | radius = | mass = | density = | surface_grav = | escape_velocity = | sidereal_day = 7.92 h [2] | spectral_type = (Neutral) B−V=0.68, V−R=0.39 [6] B−V=0.74; V−R=0.38 [7] | abs_magnitude = 4.5 | albedo = 0.7 (assumed) | single_temperature = ~ 43 K | mean_motion = {{Deg2DMS|0.0034764|sup=ms}} / day | rotation = {{Convert|7.92|h|d|abbr=on|lk=on}} | observation_arc = 7322 days (20.05 yr) | uncertainty = 3 | moid = {{Convert|37.0117|AU|Tm|abbr=on}} | jupiter_moid = {{Convert|33.0091|AU|Tm|abbr=on}} }} {{mp|(19308) 1996 TO|66}} (also written (19308) 1996 TO66) is a trans-Neptunian object that was discovered in 1996 by Chadwick Trujillo, David Jewitt and Jane Luu. Until 20000 Varuna was discovered, it was the second-largest known object in the Kuiper belt, after Pluto. Origin{{main|Haumea family}}Based on their common pattern of IR water-ice absorptions, neutral visible spectrum[8] and the clustering of their orbital elements, the other KBOs {{mpl|(24835) 1995 SM|55}}, {{mpl|(55636) 2002 TX|300}}, {{mpl|(120178) 2003 OP|32}} and {{mpl|(145453) 2005 RR|43}} all appear to be collisional fragments broken off of the dwarf planet {{dp|Haumea}}. {{clear|left}}References1. ^1 2 {{cite web |type=2003-10-18 last obs |title=JPL Small-Body Database Browser: 19308 (1996 TO66) |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1996TO66 |accessdate=5 April 2016}} 2. ^1 {{cite web |title=Conversion of Absolute Magnitude to Diameter for Minor Planets |publisher=Department of Physics & Astronomy (Stephen F. Austin State University) |author=Dan Bruton |url=http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html |accessdate=2009-12-27 |archiveurl= https://web.archive.org/web/20100323180835/http://www.physics.sfasu.edu/astro/asteroids/sizemagnitude.html |archivedate= 23 March 2010}} 3. ^1 {{cite journal |arxiv=astro-ph/0502229 |title=Diverse albedos of small trans-neptunian objects |last=Grundy |first=W. M. |date=2004 |journal=Icarus |volume=176 |pages=22 |bibcode=2005Icar..176..184G |doi = 10.1016/j.icarus.2005.01.007}} 4. ^1 {{cite journal |author=Snodgrass, Carry |author2=Dumas, Hainaut |title=Characterisation of candidate members of (136108) Haumea's family |doi=10.1051/0004-6361/200913031 |journal=Astronomy and Astrophysics |date=16 December 2009 |arxiv=0912.3171 |bibcode = 2010A&A...511A..72S}} 5. ^1 {{cite web |url=http://www.physics.nau.edu/~tegler/research/survey.htm |archive-url=https://archive.is/20060901063349/http://www.physics.nau.edu/~tegler/research/survey.htm |dead-url=yes |archive-date=2006-09-01 |title=Kuiper Belt Object Magnitudes and Surface Colors |accessdate=2006-11-07 |last=Tegler |first=Stephen C. |date=2007-02-01 }} 6. ^1 {{cite journal |title=The water ice rich surface of (145453) 2005 RR43: a case for a carbon-depleted population of TNOs? |author=Pinilla-Alonso, N. |author2=Licandro, J. |author3=Gil-Hutton, R. |author4=Brunetto, R. |journal=Astronomy and Astrophysics |date=June 2007 |volume=468 |issue=1 |bibcode=2007A&A...468L..25P |doi= 10.1051/0004-6361:20077294 |page=L25|arxiv= astro-ph/0703098}} |author=D. Ragozzine |author2=M. E. Brown |journal=The Astronomical Journal |volume=134 |issue=6 |pages= 2160–2167 |date=2007-09-04 |bibcode=2007AJ....134.2160R |doi=10.1086/522334 |arxiv=0709.0328}}[1][2][3][4][5][6] }} External links
6 : Haumea family|Kuiper belt objects|Discoveries by David C. Jewitt|Discoveries by Jane Luu|Discoveries by Chad Trujillo|Astronomical objects discovered in 1996 |
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