_2009_YE7&sq=Qlik&lang=&file=File:Haumea_family_orbits.png) (386723) 2009 YE7 among other Haumea family objects | |
| Discovery[1] | |
|---|---|
| Discovered by | David Rabinowitz |
| Discovery date | 17 December 2009 |
| Designations | |
| 2009 YE7 | |
| K09Y07E | |
| TNO Cubewano[2] Haumea family[3][4] | |
| Orbital characteristics[5] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 4 | |
| Observation arc | 2273 days (6.22 yr) |
| Aphelion | 50.694 AU (7.5837 Tm) |
| Perihelion | 37.893 AU (5.6687 Tm) |
| 44.293 AU (6.6261 Tm) | |
| Eccentricity | 0.14450 |
| 294.79 yr (107672 d) | |
| 180.87° | |
| 0° 0m 12.037s / day (n) | |
| Inclination | 29.080° |
| 141.71° | |
| ≈ 5 May 2164[6] ±15 days | |
| 99.077° | |
| Physical characteristics | |
| 200[7]–560[8] km[5][9] | |
| assume 0.7 to 0.09 | |
| Temperature | < 44 K |
| (Neutral) | |
| ≈21.7(JPL Horizons) | |
| 4.5[5] | |
(386723) 2009 YE7 (provisional designation 2009 YE7) is a trans-Neptunian object (TNO) discovered by David Rabinowitz on December 17, 2009, at the La Silla Observatory in Chile.
- ^ "List of Transneptunian Objects". IAU Minor Planet Center. 2009-12-28. Retrieved 2009-12-28.
- ^ "2009 YE7 Orbit". IAU Minor Planet Center. Retrieved 2014-04-02.
- ^ Cite error: The named reference
Trujillo2011was invoked but never defined (see the help page). - ^ Mike Brown (2009-12-29). "A ghost of Christmas past". Mike Brown's Planets (blog). Archived from the original on 2 January 2010. Retrieved 2009-12-29.
- ^ a b c "JPL Small-Body Database Browser: 386723 (2009 YE7)" (last observation: 2010-09-12). Archived from the original on 25 September 2019. Retrieved 12 April 2016.
- ^ JPL Horizons Observer Location: @sun (Perihelion occurs when deldot changes from negative to positive. Uncertainty in time of perihelion is 3-sigma.)
- ^ Assuming a Haumea-like albedo of 0.7
- ^ Assuming an unlikely albedo of 0.09
- ^ Dan Bruton. "Conversion of Absolute Magnitude to Diameter for Minor Planets". Department of Physics & Astronomy (Stephen F. Austin State University). Archived from the original on 18 December 2008. Retrieved 2009-01-07.