| 词条 | 2005 VX3 | ||||||||||||||||||||||||||||
| 释义 |
| minorplanet = yes | name = {{mp|2005 VX|3}} | background = #C2E0FF | image = | image_size = | caption = | discovery_ref = [1][2] | discoverer = Mount Lemmon Srvy. | discovery_site = Mount Lemmon Obs. {{small|(first observed only)}} | discovered = 1 November 2005 | mpc_name = {{mp|2005 VX|3}} | alt_names = | pronounced = | named_after = | mp_category = {{nowrap|TNO {{·}}damocloid [4]}} unusual [5]{{·}}distant [1] | orbit_ref = | epoch = 27 April 2019 (JD 2458600.5) | uncertainty = 4 | observation_arc = 81 days | aphelion = 1825.61 AU | perihelion = 4.1058 AU | semimajor = 914.86 AU | eccentricity = 0.9955 | period = 27,672 yr | mean_anomaly = 0.1730° | mean_motion = {{Deg2DMS|0.0000|sup=ms}} / day | inclination = 112.22° | asc_node = 255.35° | arg_peri = 196.37° | jupiter_moid = 0.8884 AU | tisserand = −0.9430 | mean_diameter = {{val|7|ul=km}} {{small|(est.)}}[4] | rotation = | albedo = 0.09 {{small|(assumed)}}[4] | spectral_type = | abs_magnitude = 14.1[1] }} {{mp|2005 VX|3}} is trans-Neptunian object and retrograde damocloid on a highly eccentric, cometary-like orbit. It was first observed on 1 November 2005, by astronomers with the Mount Lemmon Survey at the Mount Lemmon Observatory in Arizona, United States. The unusual object measures approximately {{convert|7|km|mi|abbr=off|sigfig=1|sp=us}} in diameter.[4] It has the 3rd largest known heliocentric semi-major axis and aphelion.[13] Additionally its perihelion lies within the orbit of Jupiter, which means it also has the largest orbital eccentricity of any known minor planet. Description{{mp|2005 VX|3}} orbits the Sun at a distance of 4.1–1,826 AU once every 27,672 years (semi-major axis of 915 AU). Its orbit has an eccentricity of 0.9955 and an inclination of 112° with respect to the ecliptic. It belongs to the dynamical group of damocloids due to its retrograde orbit and its low Tisserand parameter (TJupiter of −0.9430). It is a Jupiter-, Saturn-, Uranus-, and Neptune-crosser. The body's observation arc begins with its first observation by the Mount Lemmon Survey on 1 November 2005.[1]
The object has a short observation arc of 81 days and does not have a well constrained orbit. It has not been observed since January 2006, when it came to perihelion, 4.1 AU from the Sun. It may be a dormant comet that has not been seen outgassing. In the past it may have made closer approaches to the Sun that could have removed most near-surface volatiles. The current orbit crosses the ecliptic just inside Jupiter's orbit and has a Jupiter-MOID of 0.8 AU. In 2017, it had an apparent magnitude of ~28 and was 24 AU from the Sun. It comes to opposition in mid-June. It would require one of the largest telescopes in the world for any more follow-up observations. Comparison{{clear}}See also
Notes{{Notelist|group=lower-alpha|{{efn|name=jpldata-2012|1=Archived JPL Small-Body Database Browser: (2005 VX3) from [https://archive.is/20121213175657/http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2005VX3 13 December 2012]. JPL Epoch 2012 orbital solution that has aphelion (Q)=1914 AU.}}{{efn|name=MPC-2013|1=Archived MPC object data for (2005 VX3) from [https://archive.is/20140308153340/http://www.minorplanetcenter.net/db_search/show_object?object_id=2005+VX3 8 March 2014].}}{{efn|name=JPL-2016|1=Archived MPC object data for (2005 VX3) from [https://www.webcitation.org/6eybonVXd?url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2005VX3 JPL Webcite archive of Epoch 2016-Jan-13 with aphelion (Q) of 3235AU].}}{{efn|name=MPC-2016|1=Archived MPC object data for (2005 VX3) from [https://www.webcitation.org/6ewX3szzE?url=http://minorplanetcenter.net/db_search/show_object?object_id=2005+VX3 Minor Planet Center archive of Epoch 2015-06-27 with aphelion (Q) of 2563 AU].}}}} References1. ^1 2 3 4 {{cite web |title = 2005 VX3 |work = Minor Planet Center |url = https://www.minorplanetcenter.net/db_search/show_object?object_id=2005+VX3 |accessdate = 20 November 2018}} [1][2][3][4][5][6][7]2. ^1 {{Cite web |title = MPEC 2005-V58 : 2005 VX3 |publisher = IAU Minor Planet Center |date = 8 November 2005 |url = https://www.minorplanetcenter.net/mpec/K05/K05V58.html |accessdate = 20 November 2018}} (K05V03X) 3. ^1 {{cite web |title = List Of Other Unusual Objects |work = Minor Planet Center |date = 14 November 2018 |url = https://www.minorplanetcenter.net/iau/lists/t_others.html |accessdate = 19 November 2018}} 4. ^1 2 3 4 {{cite web |title = List of Known Trans-Neptunian Objects |work = Johnston's Archive |date = 7 October 2018 |last = Johnston |first= Wm. Robert |url = http://www.johnstonsarchive.net/astro/tnoslist.html |accessdate = 19 November 2018}} 5. ^1 {{cite web |title=JPL Small-Body Database Search Engine: Asteroids and a > 100 (AU) |publisher=JPL Solar System Dynamics |url=http://ssd.jpl.nasa.gov/sbdb_query.cgi?obj_group=all;obj_kind=ast;obj_numbered=all;OBJ_field=0;ORB_field=0;c1_group=ORB;c1_item=Bh;c1_op=%3E;c1_value=100;table_format=HTML;max_rows=100;format_option=comp;c_fields=AcBhBgBjBiBnBsCjCpAiCkBe;.cgifields=format_option;.cgifields=ast_orbit_class;.cgifields=table_format;.cgifields=obj_kind;.cgifields=obj_group;.cgifields=obj_numbered;.cgifields=com_orbit_class&query=1&c_sort=BhD |accessdate=2014-03-06}} (Epoch defined at will change every 6 months or so) 6. ^1 {{Cite journal |display-authors = 6 |first1 = Nathan A. |last1 = Kaib |first2 = Andrew C. |last2 = Becker |first3 = R. Lynne |last3 = Jones |first4 = Andrew W. |last4 = Puckett |first5 = Dmitry |last5 = Bizyaev |first6 = Benjamin |last6 = Dilday |first7 = Joshua A. |last7 = Frieman |first8 = Daniel J. |last8 = Oravetz |first9 = Kaike |last9 = Pan |first10 = Thomas |last10 = Quinn |first11 = Donald P. |last11 = Schneider |first12 = Shannon |last12 = Watters |date = April 2009 |title = 2006 SQ372: A Likely Long-Period Comet from the Inner Oort Cloud |url = https://arxiv.org/pdf/0901.1690.pdf |journal = The Astrophysical Journal |volume = 695 |issue = 1 |pages = 268–275 |bibcode = 2009ApJ...695..268K |doi = 10.1088/0004-637X/695/1/268 |arxiv = 0901.1690 |access-date= 20 November 2018}} 7. ^1 2 3 {{cite web |title = Barycentric Osculating Orbital Elements for 2005 VX3 |author = Horizons output |url = http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=2005VX3 |accessdate = 6 March 2014}} (Solution using the Solar System Barycenter and barycentric coordinates. Select Ephemeris Type:Elements and Center:@0) }} External links
6 : Trans-Neptunian objects|Damocloids|Extended centaurs|Unusual minor planets|Minor planet object articles (unnumbered)|Astronomical objects discovered in 2005 |
||||||||||||||||||||||||||||
| 随便看 |
|
||||||||||||||||||||||||||||
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。