List of periodic comets

Last updated

Periodic comets (also known as short-period comets) are comets with orbital periods of less than 200 years or that have been observed during more than a single perihelion passage [1] (e.g. 153P/Ikeya–Zhang). "Periodic comet" is also sometimes used to mean any comet with a periodic orbit, even if greater than 200 years.

Contents

Periodic comets receive a permanent number prefix usually after the second perihelion passage, which is why there are a number of unnumbered periodic comets, such as P/2005 T5 (Broughton). Comets that are not observed after a number of perihelion passages, or presumed to be destroyed, are given the D designation, and likewise comets given a periodic number and subsequently lost are given [n]D instead of [n]P, such as 3D/Biela or 5D/Brorsen.

In nearly all cases, comets are named after their discoverers, but in a few cases such as 2P/Encke and 27P/Crommelin they were named for a person who calculated their orbits (the orbit computers). The long-term orbits of comets are difficult to calculate because of errors in the known trajectory that accumulate with perturbations from the planets, and in the days before electronic computers some people dedicated their entire careers to this. Even so, quite a few comets were lost because their orbits are also affected by non-gravitational effects such as the release of gas and other material that forms the comet's coma and tail. Unlike a long-period comet, the next perihelion passage of a numbered periodic comet can be predicted with a high degree of accuracy.

Periodic comets sometimes bear the same name repeatedly (e.g. the nine Shoemaker–Levy comets or the twenty-four NEAT comets); the IAU system distinguishes between them either through the number prefix or by the full designation (e. g. 181P and 192P/Shoemaker–Levy are both "Comet Shoemaker–Levy"). In the literature, an informal numbering system is applied to periodic comets (skipping the non-periodic ones), thus 181P and 192P are known as Comet Shoemaker–Levy 6 and Comet Shoemaker–Levy 1, respectively. Non-periodic Shoemaker–Levy comets are interleaved in this sequence: C/1991 B1 between 2 and 3, C/1991 T2 between 5 and 6, C/1993 K1 and C/1994 E2 after Shoemaker–Levy 9.

In comet nomenclature, the letter before the "/" is either "C" (a non-periodic comet), "P" (a periodic comet), "D" (a comet that has been lost or has disintegrated), "X" (a comet for which no reliable orbit could be calculated usually historical comets), "I" for an interstellar object, or "A" for an object that was either mistakenly identified as a comet, but is actually a minor planet, [1] or for an object on a hyperbolic orbit that does not show cometary activity. [2] Some lists retain the "C" prefix for comets of periods larger than about 30 years until their return is confirmed. [3]

List of Halley-type comets

List of unnumbered Jupiter-Family comets

While Jupiter-family comets are officially defined by (2< T Jupiter <3), they can also be loosely defined by any comet with a period of less than 20 years, a relatively low inclination, and an orbit coinciding loosely with that of Jupiter's. These comets are often patchily observed, as orbital interactions with the planet often cause comets' orbits to become perturbed, causing them to not be found at the expected position in the sky and subsequently lost. Additionally, their low cometary albedos and frequent proximity to the Sun compared to Oort Cloud comets cause them to much more quickly become depleted of volatiles, making them comparatively dimmer than comets with longer orbital periods.

Comet designation Name Eccentricity Semimajor axis (AU) Period (years) Inclination (°) Perihelion distance (AU) Absolute magnitude Last perihelionNext unobserved perihelionRef
X/1979 O3 Kowal 0.333.095.441.752.0715.81979/07/261985
X/1981 R1Stattmayer0.262.453.8411.001.2813.41981/08/181986
3200 Phaeton IRAS 0.889902151.2712052531.4322.2457860.1399569714.62020/12/072022/05/15 MPC  · JPL
X/1991 G1 Meyer 0.442.413.735.961.3618.71991/04/111995 [4]
P/1996 R2 Lagerkvist 0.309983.7827.362.60542.609646.31997/01/192004/05/30 MPC  · JPL
P/1998 VS24 LINEAR 0.243934.50419.565.0313.405411.31998/11/032008/05/26 MPC  · JPL
P/1999 J6 SOHO 0.984183.10055.4626.610.049062004/11/082021/03/27 MPC  · JPL [ failed verification ]
P/1999 RO28 LONEOS 0.650793.52726.628.1911.2317619.41999/10/022006/05/17 MPC  · JPL
P/1999 XN120 Catalina 0.213914.18068.555.02833.28639.92000/05/012008/11/17 MPC  · JPL
P/2000 R2 LINEAR 0.58373.3386.13.21631.3899717.62000/09/122006/10/18 MPC  · JPL
P/2001 H5 NEAT 0.60025.99514.688.39932.39666.82001/01/282015/10/03 MPC  · JPL
P/2002 EJ57 LINEAR 0.593916.4916.534.96972.635515.82001/12/192018/06/30 MPC  · JPL
C/2002 R5 SOHO 0.985263.216125.7714.120.04742002/09/052008/02/02 MPC  · JPL
P/2002 S7 SOHO 0.984963.223445.7913.60.048492002/09/212008/07/06 MPC  · JPL
P/2003 F2 NEAT 0.542196.50316.5811.6052.977213.72003/04/142019/11/12 MPC  · JPL
P/2003 T12 SOHO 0.7754332.5700784.1211.45790.5771619.72016/03/092020/05/06 MPC  · JPL
X/2004 D5Murakami1.12004/02/15 ?
P/2004 FY140 LINEAR 0.17094.952311.022.12794.106112.52004/08/062015/08/13 MPC  · JPL
P/2004 R3 LINEAR-NEAT 0.441843.83677.527.97232.1414813.52004/05/242011/11/30 MPC  · JPL
P/2004 V3 Siding Spring 0.44677.11718.9950.45293.9383911.52004/11/112023/11/07 MPC  · JPL
P/2005 E1Tubbiolo0.38477.22519.425.1544.445610.72005/03/182024/08/15 MPC  · JPL
P/2005 J1 McNaught 0.570963.56646.7431.76591.5301513.42005/04/172012/01/12 MPC  · JPL
P/2005 L1 McNaught 0.209243.97457.927.73693.142810.22005/12/132013/11/14 MPC  · JPL
P/2005 SB216 LONEOS 0.4632087.1131218.9724.098433.8182669.92007/02/112018/01/31 MPC  · JPL
P/2005 T2Christensen0.42193.8257.488.33782.211210.42005/04/112012/10/03 MPC  · JPL
P/2005 T5 Broughton 0.552453.246819.5421.37243.246811.22005/11/032025/05/19 MPC  · JPL
P/2005 W3 Kowalski 0.530526.407816.2216.77813.00818.52005/08/232021/09/20 MPC  · JPL
P/2006 S4Christensen0.508086.236715.5839.62583.067986.32006/06/012022/01/13 MPC  · JPL
P/2006 WY182Christensen0.558566.334715.9426.49162.7963913.72007/01/172012/12/26 MPC  · JPL
P/2007 B1Christensen0.580975.829514.0812.37482.4427213.92021/02/172035/02/07 MPC  · JPL
P/2007 C2 Catalina 0.4622517.028318.638.67473.779481102007/09/042026/04/22 MPC  · JPL
P/2007 K2 Gibbs 0.6847.1819.237.61972.2686142007/06/082026/09/01 MPC  · JPL
P/2007 Q2 Gilmore 0.671235.59413.2310.23841.8390216.72007/08/232020/11/15 MPC  · JPL
P/2007 R4 Garradd 0.671435.847614.1420.22571.9213714.72007/09/272021/11/17 MPC  · JPL
P/2007 S1Zhao0.343393.79897.45.9732.494413.52007/12/062015/05/01 MPC  · JPL
P/2007 T2 Kowalski 0.774833.09045.439.895280.69586318.62007/09/192013/02/23 MPC  · JPL
P/2008 CL94 Lemmon 0.119416.170615.338.348195.43378.52006/06/302021/09/20 MPC  · JPL
P/2008 L2Hill0.6138156.0006914.725.860622.31737810.42008/08/182022/05/01 MPC  · JPL
P/2008 WZ96 LINEAR 0.50963.35676.156.957861.6462415.22009/01/232015/03/19 MPC  · JPL
P/2008 Y12 SOHO 0.97873.078225.423.350.06542008/12/222014/05/17 MPC  · JPL
P/2009 B1 Boattini 0.637196.68817.322.22852.4265913.22009/02/062026/05/27 MPC  · JPL
P/2009 Q1Hill0.496495.540913.0414.4432.7898812.92009/07/042022/07/19 MPC  · JPL
P/2009 Q4 Boattini 0.5791973.138945.5610.969323.1389415.52009/11/192015/06/11 MPC  · JPL
P/2009 WX51 Catalina 0.7402973.08035.419.59260.79995620.62010/01/312015/06/30 MPC  · JPL
P/2009 Y2 Kowalski 0.640526.50716.629.92962.339196.12010/03/302026/11/04 MPC  · JPL
P/2010 A3Hill0.732236.056814.9115.028251.6218286.52010/04/032025/03/01 MPC  · JPL
P/2010 A5 LINEAR 0.6643125.100111.525.784381.71204514.82021/10/262033/04/02 MPC  · JPL
P/2010 B2 WISE 0.48033.11045.498.93161.6164616.12009/12/212015/06/18 MPC  · JPL
P/2010 C1 Scotti 0.259117.065718.789.142475.23495.72009/12/012028/09/12 MPC  · JPL
P/2010 D2 WISE 0.453016.689417.357.177043.6590211.12010/03/052027/06/23 MPC  · JPL
P/2010 H2Vales0.1928943.850387.5614.25293.107676.92010/03/092017/09/29 MPC  · JPL
P/2010 H4 Scotti 0.2726.62417.052.3144.82110.82010/07/032027/07/21 MPC  · JPL
P/2010 H5 Scotti 0.156467.143619.0914.08716.02599.62010/04/172029/05/20 MPC  · JPL
P/2010 T2 PANSTARRS 0.32315.54613.068.01093.7546.42011/07/092024/07/31 MPC  · JPL
P/2010 TO20 LINEAR-Grauer0.0886855.600613.252.63995.10395.92008/09/082021/12/21 MPC  · JPL
P/2010 U1 Boattini 0.261126.63617.098.246234.9031762010/03/282027/04/30 MPC  · JPL
P/2010 UH55 Spacewatch 0.575146.51516.638.662572.7679696.62011/05/102027/12/26 MPC  · JPL
P/2010 WK LINEAR 0.6919875.730913.7211.479131.76517812.42010/10/192024/07/09 MPC  · JPL
P/2011 C2 Gibbs 0.268467.36619.9910.910985.388546.22012/01/072032/01/03 MPC  · JPL
P/2011 FR143 Lemmon 0.453056.829617.8516.013583.7354111.12011/03/102029/01/14 MPC  · JPL
P/2011 N1ASH0.5459266.293515.7935.668772.85771210.32012/05/312028/03/15 MPC  · JPL
P/2011 NO1 Elenin 0.7775.5613.115.271.24313.32011/01/202024/05/06 MPC  · JPL
P/2011 Q3 McNaught 0.531535.054311.366.0522.3677814.82011/08/142022/12/23 MPC  · JPL
P/2011 UA134 Spacewatch-PANSTARRS 0.63275.585413.210.53952.0515115.72011/12/072025/02/18 MPC  · JPL
P/2011 V1 Boattini 0.5553.8437.537.3971.709413.72011/05/112018/11/15 MPC  · JPL
P/2011 W1 PANSTARRS 0.288664.6560610.053.718613.312066.22012/01/222022/02/09 MPC  · JPL
P/2011 Y2 Boattini 0.712916.225115.536.351391.78714513.62012/03/212027/09/03 MPC  · JPL
P/2012 B1 PANSTARRS 0.41049666.488770216.537.627793.82515225.62013/07/232030/02/01 MPC  · JPL
P/2012 F2 PANSTARRS 0.542246.328715.9214.724652.89707122013/04/102029/03/12 MPC  · JPL
P/2012 G1 PANSTARRS 0.38524.19678.6011.69652.58015.22012/06/062021/01/08 MPC  · JPL
P/2012 K3Gibbs0.425963.6186.8813.20122.076866.92012/09/302019/08/17 MPC  · JPL
P/2012 O1 McNaught 0.579253.5636.7311.42861.49914516.62012/07/232019/04/15 MPC  · JPL
P/2012 O2 McNaught 0.538273.5976.8224.52741.66083417.32012/06/252019/04/20 MPC  · JPL
P/2012 O3 McNaught 0.6488084.55449.7216.496741.59944915.82012/08/162022/05/06 MPC  · JPL
P/2012 S2 La Sagra 0.690594.43169.338.581811.37119215.32021/12/162031/02/11 MPC  · JPL
P/2012 SB6 Lemmon 0.384623.910537.7310.98972.406514.12020/07/242027/12/21 MPC  · JPL
P/2012 T2 PANSTARRS 0.1595.73513.7312.5624.82310.22013/04/102026/12/31 MPC  · JPL
P/2012 T3 PANSTARRS 0.6025.99014.669.512.3914.82012/04/152026/12/24 MPC  · JPL
P/2012 TK8 Tenagra 0.261374.18478.566.294573.090936.92013/05/102021/10/26 MPC  · JPL
P/2012 U2 PANSTARRS 0.506577.352219.9410.53453.627812.12012/12/042032/11/12 MPC  · JPL
P/2012 US27 Siding Spring 0.648585.181411.7939.292951.8208446.82013/02/082024/11/23 MPC  · JPL
P/2012 WA34 Lemmon-PANSTARRS 0.340254.809710.556.11673.173212.72013/01/252023/08/14 MPC  · JPL
P/2013 A2 Scotti 0.455844.001483.36612.17739162021/02/072029/02/24 MPC  · JPL
P/2013 AL76 Catalina 0.6856.5116.6144.8612.0476162012/12/132029/06/08 MPC  · JPL
P/2013 EW90 Tenagra 0.196214.106058.3231.81023.300412.22021/02/052029/06/15 MPC  · JPL
P/2013 G1 Kowalski 0.512376.876518.035.468673.35309910.32013/12/102031/12/21 MPC  · JPL
P/2013 G4 PANSTARRS 0.41044.4329.335.9262.613215.12013/02/092022/06/09 MPC  · JPL
P/2013 J2 McNaught 0.6561466.2463415.6115.495532.14782810.82013/08/222029/04/02 MPC  · JPL
P/2013 N5 PANSTARRS 0.73196.80117.7423.24251.8230514.72013/07/022031/03/29 MPC  · JPL
P/2013 O2 PANSTARRS 0.438943.824917.4813.307062.140113.12021/06/092028/10/13 MPC  · JPL
P/2013 R3 Catalina-PANSTARRS 0.273453.032935.280.898932.203586.42013/08/052018/11/15 MPC  · JPL
P/2013 R3-A Catalina-PANSTARRS 0.27333.03275.280.8982.20382013/08/052018/11/15 MPC  · JPL
P/2013 R3-B Catalina-PANSTARRS 0.27333.03275.280.89962.20382013/08/052018/11/15 MPC  · JPL
P/2013 T1 PANSTARRS 0.62335.86714.2124.212.210516.62013/07/312027/10/16 MPC  · JPL
P/2013 T2Schwartz0.528493.39266.259.35211.5996214.42013/06/202020/09/19 MPC  · JPL
P/2013 W1 PANSTARRS 0.593883.48576.514.699511.41561416.52014/03/082020/09/11 MPC  · JPL
P/2013 YG46 Spacewatch 0.45163.31036.028.2171.81510.62017/01/192023/01/26 MPC  · JPL
P/2014 A2Hill0.649835.924814.4224.51352.0746813.42013/10/282027/03/30 MPC  · JPL
P/2014 A3 PANSTARRS 0.2424.679610.1213.67063.54712.52013/04/182023/06/01 MPC  · JPL
P/2014 C1 TOTAS 0.4463.0435.312.67961.685715.62013/12/182019/04/10 MPC  · JPL
P/2014 E1Larson0.4231843.711987.1515.979162.14113314.52021/07/162028/10/02 MPC  · JPL
P/2014 L2 NEOWISE 0.6467636.3258915.915.184412.2345418.62014/07/152030/06/15 MPC  · JPL
P/2014 M4 PANSTARRS 0.595575.813914.023.345192.351313.12014/12/272029/01/02 MPC  · JPL
P/2014 MG4 Spacewatch-PANSTARRS 0.2591725.0122711.229.368763.713238.52013/06/132024/09/01 MPC  · JPL
P/2014 R5 Lemmon-PANSTARRS 0.41284.06348.191.08812.385913.12014/06/172022/08/25 MPC  · JPL
P/2014 U4 PANSTARRS 0.47113.48536.516.45711.843415.42014/08/032020/02/05 MPC  · JPL
P/2014 V1 PANSTARRS 0.448232.613.42014/12/182023 MPC  · JPL
P/2014 W4 PANSTARRS 0.353126.587716.9115.27384.261506.12015/12/292032/11/26 MPC  · JPL
P/2015 C1 TOTAS-Gibbs 0.562566.612617.0013.87742.8926412.82015/05/012032/05/01 MPC  · JPL
C/2015 D1 SOHO 0.99434.91169.620.0283214.72015/02/192026 MPC  · JPL
P/2015 D6 Lemmon-PANSTARRS 0.36967.23919.4820.18394.563711.02015/07/132035/01/03 MPC  · JPL
P/2015 F1 PANSTARRS 0.278253.521426.612.804402.5416012.22021/10/222028/06/15 MPC  · JPL
P/2015 J3 NEOWISE 0.554043.35036.138.12523.350315.92021/04/192027/05/21 MPC  · JPL
P/2015 K5 PANSTARRS 0.55406.69417.3239.9872.986113.72015/06/062032/09/30 MPC  · JPL
P/2015 M2 PANSTARRS 0.178967.201719.333.97415.91288.22015/08/312024/12/29 MPC  · JPL
P/2015 P4 PANSTARRS 0.584246.073614.978.713752.525166.52016/01/192031/01/08 MPC  · JPL
P/2015 PD229Cameron-ISON 0.326737.176819.232.026874.8318811.02015/08/142034/11/06 MPC  · JPL
C/2015 R1 PANSTARRS 0.632865.898214.3222.66832.1654513.42015/06/252030/01/04 MPC  · JPL
P/2015 R2 PANSTARRS 0.4404.369.114.82.4415.82015/06/192021/07/29 MPC  · JPL
P/2015 T3 PANSTARRS 0.433.97.712.22.2115.02015/03/122023 MPC  · JPL
P/2015 TO19 Lemmon-PANSTARRS 0.358984.56389.756.49992.925476.62016/03/062025/12/04 MPC  · JPL
P/2015 TP200 LINEAR 0.536217.299319.728.772313.3853113.92016/10/282036/07/18 MPC  · JPL
P/2015 W2 Catalina 0.634117.320019.8011.61132.6783413.72015/09/302035/07/19 MPC  · JPL
P/2015 X1 PANSTARRS 0.420393.62926.9112.16222.1035516.32015/10/102022/09/07 MPC  · JPL
P/2015 X3 PANSTARRS 0.43825.02411.2624.382.82214.52015/08/072026/11/09 MPC  · JPL
P/2015 X6 PANSTARRS 0.17002.7564.574.55832.287316.12016/03/182020/07/08 MPC  · JPL
P/2016 A2Christensen0.2744.7510.3426.83.4512.12015/06/162025/10/19 MPC  · JPL
P/2016 A7 PANSTARRS 0.566625.022511.2616.63742.176657.32016/02/252027/05/31 MPC  · JPL
P/2016 BA14 PANSTARRS 0.666179283.02157695.2518.9180891.0086649520.82016/03/152021/06/14 MPC  · JPL
P/2016 G1 PANSTARRS 0.210032.583224.1510.96852.0406814.72017/01/262021/03/21 MPC  · JPL
P/2016 J1-A PANSTARRS 0.2282653.172095.6514.330192.4480116.52016/06/242022/02/16 MPC  · JPL
P/2016 J1-B PANSTARRS 0.2282313.172015.6514.33122.4480616.82016/06/242022/02/16 MPC  · JPL
P/2016 J3 STEREO 0.88035263.9026047.7125.329920.46713.32016/05/212024/02/05 MPC  · JPL
P/2016 P1 PANSTARRS 0.2943.235.8262.2815.52015/09/072021/08/11 MPC  · JPL
P/2016 R4Gibbs0.475065.335012.3210.86212.8005213.12016/07/202028/11/13 MPC  · JPL
P/2017 B4 PANSTARRS 0.3604.379.119.92.8014.62017/01/212026/05/06 MPC  · JPL
P/2017 D1Fuls0.440334.8024410.5220.73262.68813.42016/06/282027/01/06 MPC  · JPL
P/2017 K3Gasparovic0.581255.57427213.164.278722.334214.62017/05/312030/07/29 MPC  · JPL
P/2017 R1 PANSTARRS 0.1950054.13258.402.572653.3266913.92017/04/072025/09/01 MPC  · JPL
P/2017 S8 PANSTARRS 0.3936962.776214.6329.859941.6832214.82018/01/282022/09/13 MPC  · JPL
P/2017 S9 PANSTARRS 0.304573.156595.6114.13802.1951816.82017/07/232023/03/03 MPC  · JPL
P/2017 TW13 Lemmon 0.70987.16319.1744.8372.07878152018/06/202037/08/22 MPC  · JPL
P/2017 U3 PANSTARRS 0.09974.93610.9715.9094.44411.12019/04/222030/04/09 MPC  · JPL
P/2018 A4 PANSTARRS 0.781810.97436.353.14232.3956.92018/05/192054 MPC  · JPL
P/2018 A5 PANSTARRS 0.52305.64813.4223.5772.69413.92017/09/232031 MPC  · JPL
P/2018 C1 Lemmon-Read0.53455.57713.175.13502.59613.92018/02/242031 MPC  · JPL
P/2018 H2 PANSTARRS 0.53984.4059.257.3892.02715.42018/01/232027 MPC  · JPL
P/2018 L1 PANSTARRS 0.48223.6426.9510.5881.88614.62018/11/122025 MPC  · JPL
P/2018 L4 PANSTARRS 0.65984.92810.9426.6191.6768.92018/07/312029 MPC  · JPL
P/2018 L5Leonard0.3633553.618156.882.2092.30356.82018/05/042025 MPC  · JPL
P/2018 P3 PANSTARRS 0.41683.015775.248.912571.75917.82018/10/082024 MPC  · JPL
P/2018 P4 PANSTARRS 0.4496.65617.1723.1083.666412.12018/11/062036 MPC  · JPL
C/2018 P5 PANSTARRS 0.640512.7296845.427.25684.5766.52019/02/262064 MPC  · JPL
P/2018 V5Trujillo-Sheppard0.4758.96126.8310.584.718.52018/10/032045 MPC  · JPL
P/2018 VN2Leonard0.4794.06398.1918.1472.117216.42018/06/062026 MPC  · JPL
P/2018 Y2Africano0.47917.476520.4411.6873.8946112019/01/022039 MPC  · JPL
P/2019 A1 PANSTARRS 0.56895.130711.6213.7442.211713.72018/10/112030 MPC  · JPL
P/2019 A2 ATLAS 0.38205.733113.7314.8563.54310.82018/11/212032 MPC  · JPL
P/2019 A3 PANSTARRS 0.26483.14715.5815.3662.313414.92018/08/012024 MPC  · JPL
P/2019 A4 PANSTARRS 0.08962.61354.2313.31902.379415.42018/12/052023 MPC  · JPL
P/2019 A6 Lemmon - PANSTARRS 0.63925.372512.4533.22831.938514.52018/08/292031 MPC  · JPL
P/2019 A8 PANSTARRS 0.43873.35446.142.96671.882813.62018/09/022024 MPC  · JPL
P/2019 B2Groeller0.37293.85347.5616.82872.41656.62019/06/082026 MPC  · JPL
P/2019 F2 ATLAS 0.865116.550867.3319.18742.23286.22019/09/082086 MPC  · JPL
P/2019 GG21 PANSTARRS 0.47207.455320.366.08983.936515.02019/05/082039 MPC  · JPL
P/2019 LD2 ATLAS 0.14075.327912.3011.524.5812.22020/04/072032 MPC  · JPL
P/2019 LM4Palomar0.58525.717813.6736.39472.3714.1422019/06/182033 MPC  · JPL
P/2019 M2 ATLAS 0.6483.01985.2512.27221.06321.22019/06/222024 MPC  · JPL
P/2019 S2 PANSTARRS 0.206684.733510.3010.4733.755213.12019/02/202029 MPC  · JPL
P/2019 S3 PANSTARRS 0.47063.4136.318.6921.806717.92019/08/262025 MPC  · JPL
P/2019 T6 PANSTARRS 0.62355.45412.7418.75742.053415.72019/11/082032 MPC  · JPL
P/2019 U4 PANSTARRS 0.4753.51946.6011.69161.84718.62019/09/182026 MPC  · JPL
P/2019 W1 PANSTARRS 0.2664.559.7123.4623.3413.22019/05/072029 MPC  · JPL
P/2019 X1Pruyne0.30376.1815.3610.244.302610.32019/07/202034 MPC  · JPL
P/2019 X2 PANSTARRS 0.4993.6436.9515.881.82418.12019/12/092026 MPC  · JPL
P/2019 Y3 Catalina 0.69562.99575.1924.6340.9119619.22019/12/132025 MPC  · JPL
P/2020 G1Pimentel0.8613.656.9818.490.50618.72020/03/172027 MPC  · JPL
P/2020 K9 Lemmon-PANSTARRS 0.322544.2018.6123.2052.84612.32021/02/122029 MPC  · JPL
P/2020 M1 PANSTARRS 0.4775.087411.478.6332.66110.12019/12/212031 MPC  · JPL
P/2020 O1 Lemmon-PANSTARRS 0.122.654.315.2212.328415.92020/05/032024 MPC  · JPL
P/2020 O3 PANSTARRS 0.10614.66210.078.44284.167412.32021/01/262031 MPC  · JPL
P/2020 P4-B0.90921.020too uncertain to determine28.14730.092616.22020/08/08 MPC  · JPL
P/2020 P4-C0.93941.391too uncertain to determine37.55930.084215.62020/08/06 MPC  · JPL
P/2020 Q2 PANSTARRS 0.505510.92336.105.40183.310010.92020/02/072056 MPC  · JPL
P/2020 R5 PANSTARRS 0.31454.978811.1111.45433.41307.52020/05/282031 MPC  · JPL
P/2020 S1 PANSTARRS 0.507259.81114.6313.73492.947317.52021/01/162038 MPC  · JPL
P/2020 S5 PANSTARRS 0.33834.04828.1512.35422.678714.72020/08/082028 MPC  · JPL
P/2020 S6Leonard0.47903.5996.8315.45971.87489.02020/11/232027 MPC  · JPL
P/2020 S7 PANSTARRS 0.41065.023811.2616.09222.961014.62020/11/182032 MPC  · JPL
P/2020 T3 PANSTARRS 0.59153.51686.607.2961.436613.22021/01/202027 MPC  · JPL
P/2020 U2 PANSTARRS 0.51053.7777.346.4211.8499.22020/12/252028 MPC  · JPL
P/2020 W1Rankin0.26497.19319.2910.7925.28810.42020/04/042039 MPC  · JPL
P/2020 X1 ATLAS 0.36414.51869.6131.66722.87312.52020/07/212030 MPC  · JPL
P/2020 X2 ATLAS 0.766316.378966.2918.19173.82910.52020/11/152087 MPC  · JPL
P/2021 A5 PANSTARRS 0.13983.0475.3218.1882.620915.02020/11/112026 MPC  · JPL
P/2021 L2Leonard0.52184.0538.1621.0691.93915.82021/07/242029 MPC  · JPL
P/2021 L4 PANSTARRS 0.11873.1655.6316.9622.78913.82019/09/042025 MPC  · JPL
P/2021 N1 ZTF 0.67682.9775.8411.5060.96217.82021/06/062026 MPC  · JPL
P/2021 N2Fuls0.45246.93418.2613.0623.7978.92021/11/122039 MPC  · JPL

See also

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References

  1. 1 2 "Cometary Designation System". Minor Planet Center. Retrieved 2011-07-03.
  2. "MPEC 2018-H54 : 2. A/ Objects". Minor Planet Center. 20 April 2018. Retrieved 12 August 2018.
  3. Comet names and designations
  4. Meyer, Maik. "Unknown comet of 11 April 1991". comethunter.de. Retrieved 18 January 2016.