(145480) 2005 TB190
{{DISPLAYTITLE:{{mp|(145480) 2005 TB|190}}}}
{{Infobox planet
| minorplanet = yes
| background = #C2E0FF
| name = {{mp|(145480) 2005 TB|190}}
| image = 145480-2005tb190 hst.jpg
| image_scale =
| caption = Hubble Space Telescope image of {{mp|2005 TB|190}} taken in 2011
| discoverer = Becker, A. C., Puckett, A. W., Kubica, J at Apache Point (705)
| discovered = 11 October 2005
| mpc_name = {{mp|(145480) 2005 TB|190}}
| epoch = 13 January 2016 (JD 2457400.5)
| uncertainty = 3
| aphelion = {{Convert|104.14|AU|Tm|abbr=on|lk=on}} (Q)
| perihelion = {{Convert|46.197|AU|Tm|abbr=on}} (q)
| semimajor = {{Convert|75.166|AU|Tm|abbr=on}} (a)
| eccentricity = 0.38540 (e)
| period = 651.69 yr (238031 d)
| avg_speed =
| inclination = 26.5376° (i)
| asc_node = 180.4280° (Ω)
| mean_anomaly = 359.520° (M)
| arg_peri = 171.47° (ω)
| satellites =
| dimensions = {{val|464|62|u= km}}
{{val|372.5|37.5|u= km}}
| mass =
| density =
| surface_grav =
| escape_velocity =
| sidereal_day = 12.68 hours
| axial_tilt =
| pole_ecliptic_lat =
| pole_ecliptic_lon =
| albedo = {{val|0.148|0.051|-0.036}}
0.12–0.20
| spectral_type = B−V=0.98
V−R=0.56
| abs_magnitude = {{val|4.40|0.11}} , 4.6
| mean_motion = {{Deg2DMS|0.0015124|sup=ms}} / day (n)
| rotation = {{Convert|12.68|h|d|abbr=on|lk=on}}
| observation_arc = 5041 days (13.80 yr)
| moid = {{Convert|45.1927|AU|Tm|abbr=on}}
| jupiter_moid = {{Convert|41.2446|AU|Tm|abbr=on}}
}}
{{mp|(145480) 2005 TB|190}} (provisional designation {{mp|2005 TB|190}}) is a trans-Neptunian object (TNO) with an absolute magnitude of 4.4.
Orbit
File:Extreme transneptunian object eccentricity vs perihelion.png
{{mp|(145480) 2005 TB|190}} is classified as scattered-extended by the Deep Ecliptic Survey (DES), because its orbit appears to be beyond significant gravitational interactions with Neptune's current orbit. However, if Neptune migrated outward, there would have been a period when Neptune had a higher eccentricity. The aphelion of {{mp|(145480) 2005 TB|190}} lies at 104 AU.
Simulations by Emel’yanenko and Kiseleva in 2007 showed that {{mp|(145480) 2005 TB|190}} appears to have less than a 1% chance of being in a 4:1 resonance with Neptune.
It has been observed 202 times over seven oppositions. It will come to perihelion in January 2017. There are precovery observations dating back to November 2001.
Physical properties
In 2010, thermal flux from {{mp|(145480) 2005 TB|190}} in the far-infrared was measured by the Herschel Space Telescope. As a result, its size was estimated to lie within a range from 335 to 410 km.
In the visible light, {{mp|(145480) 2005 TB|190}} has a moderately red spectral slope.
The TNO was found in 2009 to have a rotation period of 12.68 ±3 hours, a common value for trans-Neptunian objects of its size. Similarly sized {{mpl|(120348) 2004 TY|364}} has a rotation period of 11.7 ± 3 hours.
References
{{reflist
|refs=
|type=2008-08-29 last observation used
|title=JPL Small-Body Database Browser: 145480 (2005 TB190)
|url=https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=145480
|access-date=7 April 2016}}
|author=Marc W. Buie
|author-link=Marc W. Buie
|date=2008-08-29
|title=Orbit Fit and Astrometric record for 145480
|publisher=SwRI (Space Science Department)
|url=http://www.boulder.swri.edu/~buie/kbo/astrom/145480.html
|access-date=2009-01-24}}
|last=Muller |first=T.G.
|author2=Lellouch, E.|author3=Stansberry, J.
|title="TNOs are Cool": A survey of the trans-Neptunian region I. Results from the Herschel science demonstration phase (SDP)
|journal=Astronomy and Astrophysics
|volume=518 |page=L146
|date=2010
|doi=10.1051/0004-6361/201014683
|bibcode=2010A&A...518L.146M
|arxiv= 1005.2923|s2cid=118635387
|display-authors=etal}}
|last=Sheppard |first=Scott S.
|date=2010
|title=The colors of extreme outer Solar System objects
|journal=The Astronomical Journal
|volume=139|issue=4|pages=1394–1405
|doi=10.1088/0004-6256/139/4/1394
|bibcode=2010AJ....139.1394S
|arxiv=1001.3674|s2cid=53545974
}}
|last=Emel’yanenko |first=V. V
|author2=Kiseleva, E. L.
|title=Resonant motion of trans-Neptunian objects in high-eccentricity orbits
|journal=Astronomy Letters
|volume=34 |pages=271–279 |date=2008
|issue=4
|doi=10.1134/S1063773708040075
|bibcode=2008AstL...34..271E|s2cid=122634598
}}
}}
External links
- {{JPL small body|id=145480}}
{{Minor planets navigator| |number=145480 |PageName={{mp|(145480) 2005 TB|190}} |}}
{{Small Solar System bodies}}
{{Trans-Neptunian objects}}
{{Authority control}}
{{DEFAULTSORT:145480}}