12P/Pons–Brooks

Halley-type comet other comets discovered by J. L. Pons and W. R. Brooks Comet Pons Comet Brooks (disambiguation)Comet Brooks March 2024 12P/Pons–Brooks Pons brooks.jpg 12P/Pons–Brooks photographed on 7 March 2024 Jean-Louis PonsWilliam Robert Brooks 12 July 1812 X/245?Kronk Meyer Seargent 1999 53 C/1385 U1Meyer_2020aKronk Meyer Seargent 1999 257–258 C/1457 A1Meyer_2020bKronk Meyer Seargent 1999 276–277 P/1812 O1Kronk Meyer Seargent 2003 30–32 P/1883 R1Kronk Meyer Seargent 2003 521–532 P/1953 M1Kronk Meyer Seargent 2009 408–416 1812 I, 1884 I, 1954 VII 1883b, 1953cICQ1 jpldata MPC 5 May 2025 (JD 2460800.5) 640–1,780 yearsobs_arc September 245 AD?Kronk Meyer Seargent 1999 53 October 1385Kronk Meyer Seargent 1999 257–258 8,340 0.781 AU 33.669 AU 17.225 AU 71.491 years 0.95466 74.190° 255.86° 199.01° 5.223° 0.598 0.180 AU 2.018 AU jpldata 5.0 11.0 34 12 kmYe_2020 (upper limit)2.2 kmLi_2025 (lower limit) 57 1.0 hoursKnight_2024 (B–R) 0.9 0.1Husarik_2026 (V–R) 0.47 0.05Husarik_2026 21 April 2024Horizons2024Horizons 15 August 2095Horizons2095 Comet Pons–Brooks is a periodic comet with an orbital period of 71 years.NYT-20240416 Comets with an orbital period of 20–200 years are referred to as Halley-type comets.Carusi, A Kresák, L. Perozzi, E. Valsecchi, G.B. Exploration of Halley's Comet High-order librations of Halley-type comets 1988 Grewing, M. Praderie, F. Reinhard, R. 899–905 Springer 10.1007/978-3-642-82971-0_153 978-3-642-82973-4 https://doi.org/10.1007/978-3-642-82971-0_153 It is one of the brightest-known periodic comets,When and How to Spot the 'Devil Comet' - NASA NASA 5 April 2024 2026-10-07 https://www.nasa.gov/blogs/watch-the-skies/2024/04/05/when-and-how-to-spot-the-devil-comet/ reaching an absolute visual magnitude of about 5 in its approach to perihelion.jpldata Comet Pons–Brooks was conclusively discovered at Marseilles Observatory in July 1812 by Jean-Louis Pons, and on its next appearance in 1883 by William Robert Brooks.Yeomans_1986 However it has been confirmed 12P/Pons–Brooks was observed before the 19th century.Meyer_2020a The last perihelion passage was 21 April 2024,Horizons with closest approach to Earth being 1.55 AU e6km unit on 2 June 2024. During the 2024 apparition the comet brightened to a magnitude of 3.8.ICQ2 Observational history Before 1812 Comet Pons–Brooks has been identified as a comet observed in 1385 and in 1457.Meyer_2020a The 1385 apparition was very favourable and the comet was recorded by the Chinese in Ming Shilu and was also mentioned in some European sources. A comet observed by Paolo dal Pozzo Toscanelli in January 1457 and mentioned in Chinese sources is also identified as comet 12P/Pons–Brooks. In both apparitions the comet had magnitude 3 or brighter, not accounting for possible outbursts. It is possible that it was also a comet recorded in Chinese sources in September 245 CE.Meyer_2020a So-Yeon Park and Jong-Chul Chae suggested that Pons–Brooks was also the comet recorded in Asian sources in 1313 and 1668.Park_2007 However, Maik Meyer argue that in the 1313 apparition, the comet would have been difficult to observe, being dim and close to the Sun, while the suggested position in Gemini contradicts the calculated location of comet Pons–Brooks in Aries.Meyer_2020a The March 1668 comet described by Koreans is probably the bright sungrazing comet observed by Europeans, whose orbit is no way compatible with that of comet 12P/Pons–Brooks.Meyer_2020a 1812 discovery Comet Pons–Brooks was discovered on 12 July 1812, by Jean-Louis Pons. Independently, this comet was later found by Vincent Wisniewski on 1 August, and Alexis Bouvard on 2 August the same year. The comet was spotted with the naked eye on 13 August and by the end of the month a tail measuring 2 degrees in length was reported.Kronk Meyer Seargent 2003 30–32 Shortly after its initial discovery it was found to have an orbital period of about 70 years with an error of about 5 years. Johann Franz Encke determined a definitive orbit with a period of 70.68 years. This orbit was used to generate an ephemeris for the 1883–1884 return.cometography 1883–84 thumb|left|Sketches of comet 12P/Pons–Brooks from 21–22 January 1884 On 2 September 1883 a (faint) comet was accidentally discovered by William Robert Brooks and later identified with the comet of 1812.Kronk Meyer Seargent 2003 521–532 An outburst was observed on 21–23 September 1883, as the comet brightened from magnitude 10–11 to 8–8.5, and its appearance changed from diffuse to star-like.Chandler_1883 The comet became visible with naked eye in 20 November and brightened up to magnitude 3. The comet was reported to experience outbursts on 1 January and 19 January.cometography This year it traveled from Scheat and Markab in western Pegasus, 13 January 1884; southward (through Pisces) to reach perihelion below Iota and Beta Ceti (~α 0, δ –10) around 24 January.Dawson_1884 It was last seen in June 1884.cometography 1954 The comet was recovered on 20 June 1953 when it was 4.5 AU e6km unit from the Sun.Kronk Meyer Seargent 2009 408–416 The comet outburst from magnitude 18 to magnitude 13 on 1 July 1953. Another outburst occurred in March 1954, the fourth observed in that apparition.Porter_1955 On 23 April the comet was estimated magnitude 6.4, and its tail was half a degree long.Porter_1955 Pons–Brooks came to perihelion on 22 May 1954 when it was 1.7 AU from Earth.Yoshida After perihelion it became better visible from the south hemisphere. It was last observed on 4 September 1954 when it was 1.9 AU e6km unit from the Sun.Porter_1955 On 10 December 1954, the meteor stream of comet Pons–Brooks passed about 0.12 AU e6km unit from Earth, resulting in potential meteors impacting Earth's atmosphere at relative velocity 45 km/s.Chebotarev_1972 2024 thumb|The comet on 27 July 2023, a week after its first outburst. On 10 June 2020 Pons–Brooks was recovered at apparent magnitude 23 by the Lowell Discovery Telescope when the comet was beyond the orbit of Saturn at 11.9 AU e9km unit from the Sun,MPEC_2020-M114 Ye_2020 with the uncertainty in the comet's heliocentric distance being roughly ± 10 000 km at the time. The comet underwent 14 well-documented outbursts, observed between 13 June 2023, and April 2024, at heliocentric distances ranging from 4.26 au to 0.85 au.Gritsevich_2025 CBET_5280 groups.io1 After perihelion, two additional outbursts were observed in summer 2024, at heliocentric distances of 1.20 AU and 2.26 AU. The coma had expanded to a diameter of 600000 km mi by 5 August, having an expansion rate of 220 m/s. Although initially spherical, the coma became asymmetrical due to the effects of radiation pressure on the dust.Manzini_2023 The comet outburst again on 5 October 2023 from magnitude 15 to magnitude 11 (brightening by ~40×).skytel1 Two more outbursts were recorded on 1 November and 14 November, with the comet brightening to apparent magnitude 9.3 after the later. Thursday 16 November 2023 Spaceweather.com Time Machine spaceweather.com https://www.spaceweather.com/archive.php?day=16&month=11&year=2023&view=view 17 November 2023 Outbursts were also observed on 14 December Cometas visibles en Enero de 2024 CometoGrafía https://cometografia.es/cometas-visibles/#012P-2024 20 January 2024 es and 18 January 2024. Friday 19 January 2024 spaceweather.com Spaceweather.com Time Machine https://www.spaceweather.com/archive.php?view=1&day=19&month=01&year=2024 20 January 2024 +OutburstsOutburst during 2023 Date Startmag Outburstmag Brightening Sun distance(AU) Solarelongation 2023-07-20CBET_5280 16 11 100× 3.9 101° 2023-10-05skytel1 15 11 40× 3.1 80° By mid February the comet had brightened to magnitude 7.5 and had developed an ion tail about two degrees long that featured jets and filaments.skytel2 A minor outburst took place on 29 February, with the comet brightening by 0.9 magnitudes.CBET_5369 James_2024 By 7 March the comet had brightened to magnitude 5.5 and was located about 10 degrees from the Andromeda Galaxy. Thursday 7 March 2024 Spaceweather.com Time Machine spaceweather.com https://www.spaceweather.com/archive.php?view=1&day=07&month=03&year=2024 9 March 2024 In the following days the comet was reported to be visible by naked eye and featured a tail about 5 degrees long.CBET_5369 Another outburst occurred on April 3, with the comet brightening to a magnitude of about 3.8.earthsky1 There was a solar eclipse on 8 April 2024 with the comet 25 degrees from the Sun. The Thai National Radio Telescope successfully detected OH maser emissions from the comet in the 1665 and 1667 MHz by late March 2024, showing fluctuations in the water production as it neared perihelion,Sakai_2025 of which data from the SWAN instrument aboard SOHO revealed that it reached 1.730 sec−1 at maximum on 14 April 2024.Combi_2025 The perihelion passage was on 21 April 2024 at 0.781 AU e6km unit from the Sun with a velocity with respect to the Sun of 47.1 km/s.Horizons2024 The closest approach to Earth was 42 days later on 2 June 2024 when it was at a distance of 1.55 AU e6km unit. Near perihelion passage the comet was expected to brighten to about magnitude 4.5 (around 400× brighter than the July 2023 outburst).Yoshida In early June Earth crossed the comet's orbital plane, resulting to an anti-tail becoming visible.duluth1 Orbit +Earth close approach Date Distance (AU) Solarelongation1812-Sep-21 1.22 AU e6km unit 40°1884-Jan-09cometography 0.63 AU e6km unit 58°1954-Jun-29 1.63 AU e6km unit 38°2024-Jun-02 1.55 AU e6km unit 45°2095-Aug-31 1.50 AU e6km unit 32° Libration is locked at a 1:6 resonance with Jupiter.Carusi_1987 The Tisserand invariant with respect to Jupiter (J) is 0.60.jpldata Carusi_1987 Aphelion (furthest point from the Sun) is just beyond the orbit of Neptune at 33.6 AU e9km unit. With a steep orbital inclination of 74.2° this comet does not spend a lot of time near the ecliptic. The Jet Propulsion Laboratory's (JPL) website shows that between the years 1900 and 2200, the comet made a relatively close approach with Saturn on 29 July 1957. At that point it passed within 1.6 AU e6km unit of the giant planet's influence, though even this approach had negligible effect.jpldata The comet's orbit appears to be stable between 1740 and 2167, with no strong perturbations by any of the planets.cometography Carusi_1987 Before the 2020 recovery, while the last observation was in 1954, Kinoshita calculated that the comet would come to a future perihelion passage (closest approach to the Sun) on 10 August 2095. Accounting for observations in 2020–2023, the nominal time of perihelion passage is now calculated to be 15 August 2095. Kirkwood in 1884 noticed that Pons–Brooks shares elements with 122P/de Vico. He suggested that the latter had calved off Pons–Brooks some centuries prior.Kirkwood_1884 Later he identified the two comets' capture into their elliptical orbits (or their parent body's capture) with their shared aphelion close to Neptune in 991 CE.Kirkwood_1886 Other comets with a similar orbital period include 13P/Olbers, 23P/Brorsen–Metcalf, and 1P/Halley. The orbital evolution of Pons–Brooks will remain stable in the next 100000 years, although there is a 0.5 percent probability that non-gravitational perturbations will cause the comet to transition into a retrograde orbit around the Sun, or even become a sungrazing comet, in the same timeframe.Królikowska_2025 Physical characteristics thumb|12P/Pons–Brooks on 6 April 2024 Nucleus size Upon being recovered in 2020, Quanzhi Ye estimated that the nucleus of Pons–Brooks is around 17.0 6.0 km in radius, assuming a geometric albedo of 0.04 and an absolute magnitude of 13.4.Ye_2020 This would make Pons–Brooks roughly half the size of Hale–Bopp, which is estimated to be 30 km mi in radius.Knight_2023 However, the comet was already active at the time it was photometrically measured, thus this represents its upper limit instead.Jewitt_2025 David C. Jewitt later revised the nucleus radius to 5.6 km mi, assuming that the outburst power was around 4.310 watts, which corresponds to the solar energy absorbed by a hemisphere surface of 200 km2.Jewitt_2025 Based on the water production rate, Li et al calculated a minimum active surface of 70 km2, which corresponds to a nuclear radius of 2.2 km mi, which represents the lower limit for the nucleus size.Li_2025 Based on the various size estimates, the comet has a mass of around 2 13 to 16 kg, assuming a density of 500 kg/m3.Zhao_2025 Enhanced imaging revealed two active regions within an isotropic coma, which contributed to its distinctive "devil comet" appearance.Garcia_2025 Subsequent photometric analysis revealed no change in dust behaviour with no characteristic outburst observed.Garcia_2025 Rotation period Observations conducted at the Lowell Observatory between January and February 2024 revealed that the comet rotates once every 57 1.0 hours, which was based on the morphology of its coma activity.Knight_2024 Analysis of CN jets from TRAPPIST resulted in a different value however, ranging from either 29.45 or 58.90 hours.Vander_Donckt_2026 Meteor showers 12P/Pons–Brooks is hypothesized to be the parent body of the weak December κ Draconids meteor shower (#336) that is active from about 29 November to 13 December and generates less than 2 meteors/hour. This is the most abundant of the meteor showers predicted to be related to the comet. One more nighttime meteor shower has been tentatively associated with 12P/Pons–Brooks, the northern June Aquilids, although most probably isn't the parent body.Tomko_2016 Comet Pons–Brooks could also be the source of a meteor shower on Venus, along with periodic comets 122P/de Vico and 27P/Crommelin.Christou_2010 Christou_2024 Notes Horizons JPL Horizons ephemeris generated by JPL K242/30 (soln.date: 2023-Jul-29) has 12P/Pons–Brooks coming to perihelion at 2024-Apr-21 03:16 which is about 2 hours later than Kinoshita's 2003 solution http://jcometobs.web.fc2.com/pcmtn/0012p.htm of 00:55. The Minor Planet Center's unperturbed two-body solution (epoch 2024-05-10) gives a less accurate date of 2024-04-20.47. JPL SBDB (using epoch 2010 https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html%23/?sstr=12P&view=OPC 8 September 2023 23 June 2022 https://archive.today/20220623124113/https://ssd.jpl.nasa.gov/tools/sbdb_lookup.html%23/?sstr=12P&view=OPC bot: unknown ) gives an even less accurate unperturbed date of 2024-Apr-19.89. See table.   "obs_arc" Observation arc from the Minor Planet Center database only covered dates from 1 October 1883 until 7 June 2025 (141.68 years). The entire arc up to October 1385 is about 640 years, and if the 245 AD apparition is confirmed to be Pons–Brooks, it will stretch out to at least 1,780 years. Outburst When a comet increases its apparent magnitude with a difference between 2 and 5 magnitudes (equivalent to a brightening of 6–100 times) the event is called an Hughes D. W. outburst Quarterly Journal of the Royal Astronomical Society 1975 16 410 1975QJRAS..16..410H https://adsabs.harvard.edu/full/1975QJRAS..16..410H One of the more extreme example of a cometary outburst is comet 17 P / Holmes' November 2007 brightening by about 15 magnitudes (nearly a millionfold), described in: A. Dyer 15 November 2007 Hubble zooms in on [the] heart of [a] mystery comet Release 2007-40 hubblesite.org Baltimore, MD Space Telescope Science Institute https://hubblesite.org/contents/news-releases/2007/news-2007-40.html 2024-03-19   References A. Carusi L. Kresak E. Perozzi G. B. Valsecchi High-order librations of Halley-type comets Astronomy & Astrophysics 1987 187 1–2 899–905 1987A&A...187..899C T. Prystavski K. Kadota P. Carson etal D. W. Green Comet 12P/Pons–Brooks http://www.cbat.eps.harvard.edu/iau/cbet/005200/CBET005280.txt Central Bureau Electronic Telegrams 2023-07-21 5280 1 2023CBET.5280....1P E. Jehin M. Vander Donckt S. Hmiddouch etal D. W. 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King Comet 12P/Pons–Brooks flares again! https://skyandtelescope.org/astronomy-news/comet-12p-pons-brooks-flares-again/ Sky & Telescope 2023-10-06 2023-10-08 Chambo Pepe The iconic tail of comet 12P/Pons–Brooks Sky and Telescope online gallery astrophoto 15 February 2024 17 February 2024 https://skyandtelescope.org/online-gallery/the-ionic-tail-of-comet-12p-pons-brooks/ D. Tomko L. Neslusan Meteoroid stream of 12P/Pons–Brooks, December κ Draconids, and northern June Aquilids Astronomy & Astrophysics 2016 592 A107 2016A&A...592A.107T 10.1051/0004-6361/201628404 free M. Vander Donckt E. Jehin K. Aravind etal Photometric and spectroscopic monitoring of the outbursting Halley-type comet 12P/Pons–Brooks https://www.aanda.org/articles/aa/pdf/2026/01/aa56202-25.pdf Astronomy & Astrophysics 2026 705 89–99 2026A&A...705A..89V 10.1051/0004-6361/202556202 free Q. Ye T. L. Farnham M. M. Knight C. E. Holt L. M. Feaga Recovery of returning Halley-type comet 12P/Pons–Brooks with the Lowell Discovery telescope American Astronomical Society 2020 4 7 101 2020RNAAS...4..101Y 2007.01368 220347511 10.3847/2515-5172/aba2d1 free D. K. Yeomans The intermediate comets and nongravitational effects The Astronomical Journal 1986 91 4 971–973 1986AJ.....91..971Y 0004-6256 10.1086/114073 free S. Yoshida 12P/Pons–Brooks http://www.aerith.net/comet/catalog/0012P/index.html www.aerith.net 2025-06-26 R. Zhao B. Yang M. S. P. Kelley S. Protopapa A. Li Y. Huang J. Liu 4 Optical and Near-infrared Spectroscopy of the Outbursting Comet 12P/Pons–Brooks The Astrophysical Journal 2025 989 2 146 2025ApJ...989..146Z 2507.03247 10.3847/1538-4357/adec8d free Kazuo Kinoshita 2003-02-22 12P/Pons–Brooks past, present and future orbital elements Comet Orbit jcometobs.web.fc2.com http://jcometobs.web.fc2.com/pcmtn/0012p.htm 2023-07-24 12P/Pons–Brooks closest approach to Earth around 21 September 1812 Using 1812 orbit solution (90000222) JPL Horizons Jet Propulsion Laboratory Pasadena, CA (Closest Earth approach occurs when deldot flips from negative to positive.) https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%2790000222%27&START_TIME=%271812-Sep-18%27&STOP_TIME=%271812-Sep-24%27&STEP_SIZE=%273%20hours%27&QUANTITIES=%2720,23%27 2025-10-06 12P/Pons–Brooks closest approach to Earth on 29 June 1954 (1 hour interval) Using 1812-1954 orbit solution (90000224) JPL Horizons Jet Propulsion Laboratory Pasadena, CA (Closest Earth approach occurs when deldot flips from negative to positive.) https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%2790000224%27&START_TIME=%271954-Jun-29%27&STOP_TIME=%271954-Jun-30%27&STEP_SIZE=%271%20hours%27&QUANTITIES=%2720,23%27 2025-10-06 Horizons batch for 12P/Pons–Brooks 90000223 at Solar Eclipse on 2024-Apr-08 JPL Horizons Jet Propulsion Laboratory Pasadena, CA https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%27DES%3D12P%3BCAP%27&START_TIME=%272024-Apr-08%2018:18%27&STOP_TIME=%272024-Apr-09%27&STEP_SIZE=%272%20days%27&QUANTITIES=%2723%27 2023-08-08 Horizons batch for 12P/Pons–Brooks 90000224 Soln.date: 2025-Jun-27 JPL Horizons Jet Propulsion Laboratory (Perihelion occurs when rdot flips from negative to positive.) https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%27DES%3D12P%3BCAP%27&START_TIME=%272024-Apr-21%27&STOP_TIME=%272024-Apr-22%27&STEP_SIZE=%2710%20minutes%27&QUANTITIES=%2719,22%27 2025-09-25 live https://web.archive.org/web/20220623123302/https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%2790000223%27&START_TIME=%272024-Apr-21%27&STOP_TIME=%272024-Apr-22%27&STEP_SIZE=%2710%20minutes%27&QUANTITIES=%2719%27 2022-06-23 12P/Pons–Brooks closest approach to Earth on 2 June 2024 (1 hour interval) 90000224 JPL#K242/29 Soln.date: 2023-Jul-20 JPL Horizons Jet Propulsion Laboratory Pasadena, CA (Closest Earth approach occurs when deldot flips from negative to positive.) https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%27DES%3D12P%3BCAP%27&START_TIME=%272024-Jun-01%27&STOP_TIME=%272024-Jun-04%27&STEP_SIZE=%271%20hours%27&QUANTITIES=%2720,23,39%27 live 2022-06-23 https://web.archive.org/web/20220623214001/https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%2790000223%27&START_TIME=%272024-Jun-01%27&STOP_TIME=%272024-Jun-04%27&STEP_SIZE=%271+hours%27&QUANTITIES=%2720%2C39%27 2022-06-23 Horizons batch for 12P/Pons–Brooks 90000223 for August 2095 JPL Horizons Jet Propulsion Laboratory Pasadena, CA (Perihelion occurs when rdot flips from negative to positive.) https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%27DES%3D12P%3BCAP%27&START_TIME=%272095-Aug-10%27&STOP_TIME=%272095-Aug-20%27&STEP_SIZE=%273%20hours%27&QUANTITIES=%2719%27 2023-07-24 12P/Pons–Brooks closest approach to Earth around 31 August 2095 JPL Horizons Jet Propulsion Laboratory Pasadena, CA (Closest Earth approach occurs when deldot flips from negative to positive.) https://ssd.jpl.nasa.gov/horizons_batch.cgi?batch=1&COMMAND=%27DES%3D12P%3BCAP%27&START_TIME=%272095-Aug-27%27&STOP_TIME=%272095-Sep-02%27&STEP_SIZE=%273%20hours%27&QUANTITIES=%2720,23%27 2023-07-22 Bibliography 25em yes Kronk Gary W. Meyer Maik Seargent David A. J. 1999 Cometography: A Catalog of Comets 1: Ancient–1799 Cambridge University Press 978-0-521-58504-0 Kronk Gary W. Meyer Maik Seargent David A. J. 2003 Cometography: A Catalog of Comets 2: 1800–1899 Cambridge University Press 978-0-521-58505-7 Kronk Gary W. Meyer Maik Seargent David A. J. 2009 Cometography: A Catalog of Comets 4: 1933–1959 Cambridge University Press 978-0-521-58507-1 Peng-Yoke H. 1964 Natural phenomena recorded in the Đai-Viêt Su'-ky Toan-Thu', an early Annamese historical source Journal of the American Oriental Society 84 2 127–149 597100 10.2307/597100 External links Comet observation database (COBS, cobs.si) Data for 12P/Pons–Brooks https://cobs.si/comet/484 Maik Meyer 1954 apparition lightcurve SkyMorph Twitter.com https://twitter.com/skymorph/status/1277912623472955392 Dmitry Chestnov Comet 12P/Pons–Brooks light curve lightcurve.narod.ru http://lightcurve.narod.ru/curves/0012p.html 12P/Pons–Brooks 12P 12P/Pons–Brooks at the Minor Planet Center database Astronomy Pictures of the Day 8 December 2023 Vega and Comet 12P/Pons–Brooks 16 February 2024 Structure in the Tail of Comet 12P/Pons–Brooks 9 March 2024 Comet 12P/Pons–Brooks in Northern Spring 18 March 2024 Comet Pons–Brooks Swirling Coma 26 March 2024 Comet Pons–Brooks Ion Tail 4 April 2024 Comet Pons–Brooks at Night 8 April 2024 The Changing Ion Tail of Comet Pons–Brooks 17 April 2024 Total Eclipse and Comets 29 April 2024 Comet, Planet, Moon 4 June 2024 Comet Pons Brooks Develops Opposing Tails 11P/Tempel–Swift–LINEAR 13P/Olbers Category:Periodic comets 012P 0012 012P * 012P 012P