New dwarf planet found in our solar system

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Read MPEC 2025-K46
M.P.E.C. 2025-K47 Issued 2025 May 21, 17:10 UT The Minor Planet Electronic Circulars contain information on unusual minor planets, routine data on comets and natural satellites, and occasional editorial announcements. They are published on behalf of Division F of the International Astronomical Union by the Minor Planet Center, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A. Prepared using the Tamkin Foundation Computer Network [email protected] URL https://www.minorplanetcenter.net/ ISSN 1523-6714 2017 OF201 Observations: K17OK1F &C2011 08 31.47629901 36 40.144+25 44 31.95 22.66rWEK047T14 K17OK1F &C2011 08 31.51931001 36 40.074+25 44 32.08 22.60rWEK047T14 K17OK1F &C2011 08 31.56247701 36 39.996+25 44 32.11 22.63rWEK047T14 K17OK1F &C2011 09 05.48962201 36 31.220+25 44 32.41 22.58rWEK047T14 K17OK1F &C2011 11 24.38075501 33 14.889+25 29 41.15 22.59rWEK047T14 K17OK1F &C2011 11 30.38590401 33 02.846+25 27 58.06 22.61rWEK047T14 K17OK1F &C2011 11 30.40231601 33 02.814+25 27 57.75 22.61rWEK047T14 K17OK1F &C2011 12 01.39764901 33 00.946+25 27 40.74 22.63rWEK047T14 K17OK1F &C2012 01 28.24831901 32 30.863+25 15 22.20 22.66rWEK047T14 K17OK1F NC2014 08 13.41269901 42 46.672+26 25 58.51 21.79zUEK047W84 K17OK1F NC2015 10 11.22165101 42 46.775+26 37 44.50 22.54rUEK047W84 K17OK1F NC2015 10 11.22339201 42 46.783+26 37 44.42 23.70gUEK047W84 K17OK1F*NC2017 07 23.43911401 48 22.616+27 02 09.48 21.77zUEK047W84 K17OK1F NC2017 09 17.30671401 47 24.008+27 06 52.60 22.71rUEK047W84 K17OK1F NC2017 11 12.13920001 45 04.120+26 57 08.36 24.32gUEK047W84 K17OK1F NC2018 07 26.42913801 50 10.026+27 15 20.25 22.02zUEK047W84 K17OK1F NC2018 08 10.38536501 50 06.204+27 17 54.30 23.49gUEK047W84 K17OK1F NC2018 08 11.37484001 50 05.580+27 18 02.49 22.62rUEK047W84 K17OK1F NC2018 10 31.16980401 47 24.018+27 13 04.03 22.65rUEK047W84 Observer details: T14 Canada-France-Hawaii Telescope, Maunakea. Observer . Measurers J. Li, S. Cheng. 3.6-m f/4.18 reflector + CCD. W84 Cerro Tololo-DECam. Observer . Measurers J. Li, S. Cheng. 4.0-m f/2.87 reflector + CCD. Orbital elements: 2017 OF201 Epoch 2025 May 5.0 TT = JDT 2460800.5 Alexandersen M 1.30220 (2000.0) P Q n 0.00003775 Peri. 338.15750 +0.60705834 +0.78128316 a 880.0169161 Node 328.66696 -0.68151060 +0.41790320 e 0.9485897 Incl. 16.21146 -0.40868506 +0.46363083 P 26106 H 3.55 G 0.15 U 9 Residuals in seconds of arc 110831 T14 0.1- 0.1- 111201 T14 0.1+ 0.0 171112 W84 0.1- 0.0 110831 T14 0.0 0.0 120128 T14 0.1+ 0.0 180726 W84 0.0 0.0 110831 T14 0.1- 0.0 140813 W84 0.0 0.0 180810 W84 0.0 0.2- 110905 T14 0.0 0.0 151011 W84 0.1- 0.2+ 180811 W84 0.0 0.1- 111124 T14 0.0 0.0 151011 W84 0.1+ 0.1+ 181031 W84 0.2- 0.1+ 111130 T14 0.0 0.0 170723 W84 0.3+ 0.0 111130 T14 0.0 0.0 170917 W84 0.0 0.1- Ephemeris: 2017 OF201 a,e,i = 880.02, 0.95, 16 q = 45.2419 Date TT R. A. (2000) Decl. Delta r Elong. Phase V 2025 04 21 01 58 57.6 +28 10 11 91.5165 90.5532 16.5 0.2 23.2 ... 2025 05 06 01 59 42.4 +28 14 03 91.5444 90.5793 16.8 0.2 23.2 ... 2025 05 14 02 00 05.4 +28 16 19 91.5340 90.5932 21.3 0.2 23.2 ... 2025 05 20 02 00 22.1 +28 18 04 91.5150 90.6036 25.6 0.3 23.2 2025 05 21 02 00 24.8 +28 18 22 91.5110 90.6053 26.4 0.3 23.2 2025 05 22 02 00 27.5 +28 18 40 91.5066 90.6071 27.1 0.3 23.2 ... 2025 05 28 02 00 43.2 +28 20 29 91.4754 90.6175 32.0 0.3 23.2 ... 2025 06 05 02 01 02.6 +28 22 55 91.4202 90.6314 38.8 0.4 23.2 ... 2025 06 20 02 01 33.6 +28 27 25 91.2800 90.6575 52.0 0.5 23.2 M. P. C. Staff (C) Copyright 2025 MPC M.P.E.C. 2025-K47
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