(709487) 2013 BL76
![]() The orbits of some of the most distant minor planets, 2013 BL76 at top left | |
Discovery[1][2][3] | |
---|---|
Discovered by | Mt. Lemmon Survey |
Discovery date | 20 January 2013 |
Designations | |
2013 BL76 | |
Orbital characteristics[1] | |
Epoch 4 September 2017 (JD 2458000.5) | |
Uncertainty parameter 1 | |
Observation arc | 1.88 yr (687 days) |
Aphelion | |
Perihelion | 8.3622 |
| |
Eccentricity | 0.9923 |
0.0493° | |
0° 0m 0s / day | |
Inclination | 98.613° |
180.20° | |
165.96° | |
Physical characteristics | |
Dimensions | |
22.1[7] | |
10.8[1][5] | |
(709487) 2013 BL76 is a trans-Neptunian object and centaur[4] from the scattered disk and Inner Oort cloud approximately 30 kilometers in diameter.
Using an epoch of February 2017, it is the minor planet with the 5th largest heliocentric semi-major axis in the Solar System (larger ones include 2014 FE72, 2012 DR30, and 2005 VX3).[8] 2013 BL76 has a barycentric semi-major axis of ~964
Possible comet
[edit]With an absolute magnitude (H) of 10.8[5] and an unknown albedo, the object has an estimated diameter of 15–40 km.[6] Since it has not been seen out-gassing, it is not known if it is a comet or not. It might also be a damocloid, a type of minor planet that was originally a comet but lost most of its near-surface volatile materials after numerous orbits around the Sun. It also might be a dormant comet that simply has not been seen outgassing.
Orbit
[edit]2013 BL76 came to perihelion 8.3
It will not be 50
The orbit of 2013 BL76 currently comes closer to Saturn than any of the other giant planets.[5] In a 10 million year integration of the orbit, the nominal (best-fit) orbit acquires a perihelion point of 0.5
2013 BL76 travels in a technically retrograde orbit around the Sun. It is actually orbiting in a plane nearly perpendicular to that of the ecliptic. It has the 55th highest inclination of any known asteroid, after 2010 GW147 and before 2014 HS150.
Comparison
[edit]![](https://upload.wikimedia.org/wikipedia/commons/thumb/5/56/Distant_object_orbits_%2B_Planet_Nine.png/500px-Distant_object_orbits_%2B_Planet_Nine.png)
Epoch | Barycentric Aphelion (Q) ( |
Orbital period yr |
---|---|---|
1950 | 1849 | 28300 |
2050 | 1920 | 29900 |
Largest semimajor axes of minor planets
[edit]Similar bodies | |||||||||
---|---|---|---|---|---|---|---|---|---|
Minor planet desig. | Semi- major axis |
Semi- major axis (bary) |
Perihelion | Aphelion | Aphelion (bary) |
Abs. mag. (H) |
Diameter (km) |
Orb. uncert. (0–9)[b] |
No. obs. (arc days) |
2002 GB32 | 213 | 206.7 | 35.3420 | 390 | 378 |
|
120 | 3 | 26 (4733) |
(82158) 2001 FP185 | 220 | 216 | 34.2340 | 406 | 398 | 6.0 | 265 | 3 | 50 (2461) |
2012 KA51 | 224 | 190 | 4.9 | 444 | 380 | 11.1 | 15 | 9 | 12 (6) |
(148209) 2000 CR105 | 229.8 | 222.2 | 44.2000 | 415.5 | 400.4 | 6.3 | 320 | 3 | 54 (3242) |
(468861) 2013 LU28 | 230 | 230 | 8.698 | 460 | 451.5 | 7.9 | 115 | 5 | 56 (385) |
2006 UL321 | 261 | 257 | 23.5 | 498 | 490.5 | 7.6 | 125 | 9 | 3 (1) |
2012 VP113 | 265 | 263.158 | 80.4500 | 448 | 445.88 | 4.0 | 460 | 5 | 26 (739) |
1996 PW | 267 | 240 | 2.5557 | 532 | 480 | 14.0 | 7 | 2 | 250 (506) |
2011 OR17 (2010 KZ127) | 272 | 270 | 3.0987 | 550 | 540 | 13.1 | 10 | 1 | 101 (748) |
2013 RF98 | 320 | 316.7 | 36.288 | 603 | 597 |
|
90 | 5 | 38 (56) |
(336756) 2010 NV1 | 322.7 | 286 | 9.41587 | 635.9 | 562 | 10.6 | 34 | 1 | 147 (1815) |
474640 Alicanto | 328.8 | 327.3 | 47.3324 | 610.3 | 607.3 | 6.4 | 314 | 2 | 28 (3611) |
(418993) 2009 MS9 | 349.55 | 352.5 | 11.00317 | 688.1 | 694 |
|
42 | 1 | 134 (1995) |
2010 GB174 | 367 | 351.1 | 48.5600 | 686 | 653.7 | 6.5 | 223 | 3 | 18 (965) |
2007 DA61 | 475 | 500 | 2.6550 | 950 | 900 |
|
4.5 | 4 | 78 (29) |
2010 BK118 | 490 | 385 | 6.1050 | 980 | 770 | 10.2 | 38 | 1 | 292 (1319) |
90377 Sedna | 524.2 | 505.88 | 76.094 | 972.4 | 935.6 | 1.5 | 1000 | 2 | 90 (8819) |
2007 TG422 | 530 | 501.8 | 35.5830 | 1030 | 968 | 6.2 | 343 | 2 | 34 (1956) |
(87269) 2000 OO67 | 570 | 555 | 20.7900 | 1100 | 1110 | 9.2 | 60 | 2 | 34 (2187) |
2002 RN109 | 720 | 850 | 2.7040 | 1440 | 1201 | 15.3 | 4 | 3 | 38 (80) |
(308933) 2006 SQ372 | 765 | 792 | 24.172 | 1500 | 1585 | 8.1 | 110 | 2 | 65 (1830) |
2013 AZ60 | 880 | 593 | 7.908 | 1700 | 1176 | 10.2 | 62.3 | 1 | 189 (8067) |
2013 BL76 | 1251 | 940 | 8.37358 | 2494 | 1825 | 10.8 | 35 | 1 | 68 (687) |
2012 DR30 (2009 FW54) | 1300 | 1036 | 14.546 | 2600 | 2030 | 7.1 | 171 | 0 | 206 (5375) |
2005 VX3 | 1300 | 1200 | 4.133 | 2700 | 2038 | 14.1 | 6 | 4 | 50 (81) |
2014 FE72 | 2000 | 1500 | 36.3 | 4000 | 3000 | 6.0789±0.1699 | 226 | 5 | 12 (623) |
Notes
[edit]- ^ a b c d e Given the orbital eccentricity of this object, different epochs can generate quite different heliocentric unperturbed two-body best-fit solutions to the semi-major axis and orbital period. For objects at such high eccentricity, the Sun's barycenter is more stable than a heliocentric solution.[10] Using JPL Horizons, the barycentric semi-major axis is approximately 964
AU .[9] - ^ 0–3 is high-certainty and well constrained, 9 is low-certainty and probably lost.
References
[edit]- ^ a b c d "JPL Small-Body Database Browser: (2013 BL76)" (last observation: 2014-08-25; arc: 1.88 years). Jet Propulsion Laboratory. Archived from the original on 4 January 2014. Retrieved 25 March 2016.
- ^ a b "2013 BL76". Seicchi Yoshida's Home Page. Archived from the original on 15 January 2020. Retrieved 12 July 2013.
- ^ "MPEC 2013-C12 : 2013 BL76". IAU Minor Planet Center. 3 February 2013. Retrieved 14 October 2013. (K13B76L)
- ^ a b c Marc W. Buie. "Orbit Fit and Astrometric record for 13BL76". SwRI (Space Science Department). Archived from the original on 6 February 2016. Retrieved 3 February 2016.
- ^ a b c d "2013 BL76". IAU minor planet center. Archived from the original on 12 July 2013. Retrieved 12 July 2013.
- ^ a b "Absolute Magnitude (H)". NASA/JPL. Archived from the original on 2 March 2001. Retrieved 13 October 2013.
- ^ "AstDyS 2013BL76 Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 4 February 2016.
- ^
"JPL Small-Body Database Search Engine: Asteroids and a > 100 (
AU )". JPL Solar System Dynamics. Archived from the original on 6 March 2014. Retrieved 13 October 2013. (Epoch defined at will change every 6 months or so) - ^ a b Horizons output. "Barycentric Osculating Orbital Elements for 2013 BL76". Retrieved 6 March 2014. (Solution using the Solar System Barycenter and barycentric coordinates. Select Ephemeris Type:Elements and Center:@0)
- ^ Kaib, Nathan A.; Becker, Andrew C.; Jones, R. Lynne; Puckett, Andrew W.; Bizyaev, Dmitry; Dilday, Benjamin; Frieman, Joshua A.; Oravetz, Daniel J.; Pan, Kaike; Quinn, Thomas; Schneider, Donald P.; Watters, Shannon (2009). "2006 SQ372: A Likely Long-Period Comet from the Inner Oort Cloud". The Astrophysical Journal. 695 (1): 268–275. arXiv:0901.1690. Bibcode:2009ApJ...695..268K. doi:10.1088/0004-637X/695/1/268. S2CID 16987581.
- ^
"AstDys 2013BL76 Ephemerides for 1927 (when 100
AU from Sun)". Department of Mathematics, University of Pisa, Italy. Retrieved 14 October 2013. - ^
"AstDys (90377) Sedna Ephemerides for 1975 (when 100
AU from Sun)". Department of Mathematics, University of Pisa, Italy. Retrieved 14 October 2013.
External links
[edit]- Webcite archive of Epoch 2015-06-27 with aphelion (Q) of 2467
AU - (709487) 2013 BL76 at AstDyS-2, Asteroids—Dynamic Site
- (709487) 2013 BL76 at the JPL Small-Body Database