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Astronomical Headlines This page contains brief information on recent astronomical discoveries asreported in the International AstronomicalUnion Circulars (IAUCs) (published by the CentralBureau for Astronomical Telegrams) and theMinor Planet Electronic Circulars(MPECs) (published by the Minor Planet Center),as well as links to ephemerides and orbital elements for comets andminor planets. The objects below are listed in chronological orderof announcement, by category of object, the most recent first.NoteYou are strongly advised not to make direct links to pages beneath thispage, other than links to `index.html' pages, as they may be temporary or bemoved or renamed as circumstances dictate.Some Press InformationSheets are available.CometsLinks to other comet-related websites, previously listed here, have been moved to theInternational CometQuarterly webpages. Ephemerides and orbital elements for (potentially) observable comets. Recent comet discoveries and recoveries: Note that near-sun comets observed only from space are generally excluded from this listing. P/2008 U1 (McMillan). Discovery by Robert S. McMillan in the course of the Spacewatch survey IAUC 8997, 2008 Oct. 21. P/2008 T5 (NEAT). Recovery of P/2001 J1 by K. Kadota IAUC 8996, 2008 Oct. 20. P/2008 T4 (Hill). Discovery by R. E. Hill via the Catalina Sky Survey IAUC 8994, 2008 Oct. 8. P/2008 T3 (Barnard-Boattini). Discovery by A. Boattini via the Mt. Lemmon survey; subsequently identified with the long-lost comet D/1892 T1 (Barnard). IAUC 8993, IAUC 8995, 2008 Oct. 8. C/2008 T2 (Cardinal). Found as apparently asteroidal by Rob D. Cardinal (University of Calgary), found to be cometary elsewhere. IAUC 8993, 2008 Oct. 8. P/2008 T1 (Boattini). Discovery by A. Boattini via the Mt. Lemmon survey IAUC 8988, 2008 Oct. 2. C/2008 S3 (Boattini). Discovery by A. Boattini via the Mt. Lemmon survey IAUC 8986, 2008 Sept. 30. C/2008 QP20 (LINEAR-Hill). Found as apparently asteroidal by the LINEAR survey, found independently as cometary by R. Hill (Catalina Sky Survey). IAUC 8980, 2008 Sept. 24. P/2008 S1 (Catalina-McNaught). Discovery by R. H. McNaught via the Siding Spring survey; later found to be identical with asteroidal images reported of an object found several months earlier in the course of the Catalina Sky Survey IAUC 8977, 2008 Sept. 19; IAUC 8978, 2008 Sept. 22. 205P/2008 R6 (Giacobini). Re-discovery of comet D/1896 R2 by Koichi Itagaki and Hiroshi Kaneda. IAUC 8975, 2008 Sept. 10. Additional components (split comet) announced on IAUC 8978, 2008 Sept. 22. P/2008 R5 (LINEAR-NEAT). Recovery of comet P/1999 WJ7. IAUC 8974, 2008 Sept. 9. P/2008 R4 (Korlevic). Recovery of comet P/2001 TU80. IAUC 8974, 2008 Sept. 9. P/2008 R3 (LINEAR). Discovery of a comet as apparently asteroidal by the LINEAR survey, found to be cometary elsewhere. IAUC 8973, 2008 Sept. 8. P/2008 R2 (Scotti). Recovery of comet P/2001 X2. IAUC 8971, 2008 Sept. 5. P/2008 Q4 (LONEOS). Recovery of comet P/2001 R1 by Michael Jaeger. IAUC 8970, 2008 Sept. 5. P/2008 R1 (Garradd). Discovery by Gordon J. Garradd in the course of the Siding Spring Survey. IAUC 8969, 2008 Sept. 4. C/2008 Q3 (Garradd). Discovery by Gordon J. Garradd in the course of the Siding Spring Survey. IAUC 8968, 2008 Aug. 28. P/2008 Q2 (Ory). CCD discovery by Michel Ory of Delemont, Switzerland. IAUC 8967, 2008 Aug. 28. C/2008 Q1 (Maticic). Discovery by Stanislav Maticic in the course of the Comet and Asteroid Search Program at Crni Vrh Observatory. IAUC 8966, 2008 Aug. 20. C/2008 O3 (Boattini). Discovery via the Mt. Lemmon Survey. IAUC 8964, 2008 Aug. 1. C/2008 O2 (McNaught). Discovery by R. H. McNaught via the Siding Spring survey. IAUC 8963, 2008 Aug. 1. C/2008 N1 (Holmes). CCD discovery by amateur astronomer Robert E. Holmes, Jr. IAUC 8959, 2008 July 7. C/2008 FK75 (Lemmon-Siding Spring). Found as apparently asteroidal by the Mt. Lemmon and Siding Spring surveys, found to be cometary elsewhere. IAUC 8958, 2008 July 7. C/2008 L3 (Hill). Discovery by R. E. Hill via the Catalina Sky Survey. IAUC 8954, 2008 June 15. P/2008 L2 (Hill). Discovery by R. E. Hill via the Catalina Sky Survey. IAUC 8953, 2008 June 14. P/2008 L1 (Larsen). Recovery by J. V. Scotti of P/1997 V1. IAUC 8952, 2008 June 13. C/2008 J6 (Hill). Discovery by R. E. Hill via the Catalina Sky Survey. IAUC 8945, 2008 May 15. C/2008 J5 (Garradd). Discovery by G. J. Garradd via the Siding Spring survey. IAUC 8944, 2008 May 15. C/2008 J4 (McNaught). Discovery by R. H. McNaught via the Siding Spring survey. IAUC 8943, 2008 May 13. P/2008 J3 (McNaught). Discovery by R. H. McNaught via the Siding Spring survey. IAUC 8942, 2008 May 12. P/2008 J2 (Beshore). Discovery via the Mt. Lemmon Survey. IAUC 8941, 2008 May 7. C/2008 J1 (Boattini). Discovery via the Catalina Sky Survey. IAUC 8940, 2008 May 3. C/2008 H1 (LINEAR). Discovery by the LINEAR survey (reported as asteroidal by them, found to be cometary elsewhere). IAUC 8938, 2008 Apr. 23. 198P/2006 B7 (ODAS). Re-discovery of P/1998 X1 by G. V. Williams in survey astrometry; had been reported as diffuse in single-night 2005 possible-recovery images by E. Christensen via the Catalina Sky Survey. IAUC 8929, 2008 Mar. 31. 199P/2008 G2 (Shoemaker). Re-discovery of P/1994 J3 as apparently asteroidal in Catalina Sky Survey data by Minor Planet Center staff members. CBET 1347, 2008 Apr. 19. C/2008 G1 (Gibbs). Discovery by A. R. Gibbs via the Mount Lemmon survey. IAUC 8932, 2008 Apr. 9. C/2008 E3 (Garradd). Discovery by G. J. Garradd via the Siding Spring survey. IAUC 8927, 2008 Mar. 8. 197P/2008 E2 (LINEAR). Re-discovery of P/2003 KV2 as apparently asteroidal by the Catalina Sky Survey. IAUC 8924, 2008 Mar. 4. C/2008 E1 (Catalina). Discovery as apparently asteroidal by the Catalina Sky Survey, then found to be cometary elsewhere. IAUC 8923, 2008 Mar. 4. 196P/2008 C2 (Tichy). Recovery of comet P/2000 U6. IAUC 8917, 2008 Feb. 5. C/2008 C1 (Chen-Gao). Discovery by amateur astronomer Tao Chen on CCD images taken by amateur astronomer Xing Gao. IAUC 8915, 2008 Feb. 3. P/2007 VQ11 (Catalina). Discovery as apparently asteroidal by the Catalina Sky Survey, then found to be cometary by Catalina three months later. IAUC 8914, 2008 Feb. 1. C/2008 A2 (LINEAR). Discovery by the LINEAR survey (reported as asteroidal by them, found to be cometary elsewhere). IAUC 8912, 2008 Jan. 19. C/2007 VO53 (Spacewatch). Discovery as apparently asteroidal by the Spacewatch survey, found to be cometary elsewhere. IAUC 8911, 2008 Jan. 18. C/2008 A1 (McNaught). Discovery by R. H. McNaught via the Siding Spring survey. IAUC 8909, 2008 Jan. 11. For comets announced prior to 2008, go to theolder Headlines webpage. Recent magnitude estimates for observablecomets (as reported to the CBAT and the InternationalComet Quarterly).Minor Planets, Dwarf Planets 2008 TC3. An asteroidal object perhaps 2-3 meters in size, which was discovered at Mt. Lemmon on Oct. 6.28 UT, will hit the earth's atmosphere on Oct. 7.115 over Sudan, moving west to east (contrary to the wording on IAUC 8990) at a velocity of 12.9 km/s. 2008 Oct. 6. A computer-generated image (created by Syuichi Nakano, Sumoto, Japan) of the collision of 2008 TC3 with the earthis available here. Most (if not all) of the object was expected to burn up upon entry through the earth's atmosphere, though it is likely that some (perhaps many) smallpieces (a few cm or a few mm in size) survived to hit the ground as meteorites. A Meteosat 8 satellite image of the entry of 2008 TC3 into the earth's atmosphere over northern Sudan is available here(kindly supplied by Jiri Borovicka). The name "Haumea" has been assigned to the transneptunian dwarf planet (or plutoid) whose designation is (136108) 2003 EL61. IAUC 8976, 2008 Sept. 17. The name "Makemake" has been assigned to the transneptunian dwarf planet (or plutoid) whose designation is (136472) 2005 FY5. IAUC 8960, 2008 July 18. 2008 KV42 is an apparently asteroidal object (discovered by B. Gladman et al. at Mauna Kea) with a retrograde orbit (i = 103 deg) and a Neptune-crossing orbit (q around 20 AU, Q around 72 AU).IAUC 8960, 2008 July 18. 2007 VA85 is an apparently asteroidal object (discovered by the LINEAR project) with the shortest known orbital period (7.6 yr) for a sun-orbiting natural object with a retrograde orbit (i = 132.6 deg).IAUC 8894, 2007 Nov. 10. Names have been assigned to (136199) 2003 UB313 and its satellite (IAUC 8747 [PDF]). [added 2006 Sept. 13] (136199) Eris = 2003 UB313. Discovery of a transneptunian object of similar absolute brightness to Pluto (along with two other TNOs that are also relatively bright -- near 17th magnitude). IAUC 8577 and MPEC 2005-O41 (2005 July 29). Naming announced on IAUC 8747 (2006 Sept. 13). For objects announced prior to 2006, go to theolder Headlines webpage. For recent discoveries/recoveries of Near-Earth Asteroids and other unusual minor planets you are referred to the list of recent MPECs: The NEO Page The NEO Confirmation Page Ephemerides and orbital elements for observable NEOs and unusual minor planets. For recent discoveries/recoveries of distant minor planets (Centaurs, TNOs, and SDOs) you are referred to the list of recent MPECs: Ephemerides and orbital elements for observable distant minor planets. Ephemerides and orbital elements for critical-list numbered minor planets. Recently Discovered Natural Satellites and Rings of Major and Minor Planets Two satellites of the main-belt minor planet (216) Kleopatra, S/2008 (216) 1 and S/2008 (216) 2. IAUC 8980, 2008 Sept. 24. A satellite of the Apollo-type minor planet (35107) 1991 VH. IAUC 8977, 2008 Sept. 19. Two companions to minor planet (153591) 2001 SN263. IAUC 8921, 2008 Feb. 13. New names of satellites of Saturn (XLIX-LII). IAUC 8873, 2007 Sept. 20. Binary companion to minor planet (160256) 2002 PD149 CBET 1046, 2007 Aug. 31. Satellite of minor planet 2007 DT103. CBET 1020, 2007 Aug. 3. Satellite of minor planet (702) Alauda. CBET 1016, 2007 Aug. 2. New satellite of Saturn (S/2007 S 4). IAUC 8857, 2007 July 18. New satellites of Saturn (S/2007 S 1, S/2007 S 2, S/2007 S 3). IAUC 8836, 2007 May 11. New names of satellites of Jupiter (XLIX) and Saturn (VI-XLVIII) and of Uranian ring 1986 U 2R. IAUC 8826, 2007 Apr. 5. Binary companion of minor planet 2006 VV2. IAUC 8826, 2007 Apr. 5. Satellite of minor planet (45) Eugenia. IAUC 8817, 2007 Mar. 7. Satellites of transneptunian minor planets 2004 PB108 and (60621) 2000 FE8. IAUC 8816, 2007 Mar. 3. Satellite of transneptunian minor planet 2002 GZ31. IAUC 8815, 2007 Feb. 28. Satellite of transneptunian minor planet (119979) 2002 WC19. IAUC 8814, 2007 Feb. 27. Satellites of transneptunian minor planets 2003 AZ84, (50000) Quaoar, (55637) 2002 UX25, and (90482) Orcus. IAUC 8812, 2007 Feb. 22. Satellite of transneptunian minor planet (123509) 2000 WK183. IAUC 8811, 2007 Feb. 21. New names of Neptunian satellites IX-XIII. IAUC 8802, 2007 Feb. 3. List of satellites and companions of minor planets that have been announced on CBAT publications. For objects announced prior to 2007, go to theolder Headlines webpage. Novae and very unusual variable objects V1251 Cyg. Rare outburst of dwarf nova. IAUC 8996, 2008 Oct. 20. QY Mus. Apparent nova in Musca. IAUC 8990, 2008 Oct. 6. Apparent nova in M31. CBET 1528, 2008 Oct. 6. V1721 Aql. Nova Aquilae 2008. IAUC 8989, 2008 Oct. 3. V1309 Sco. Nova Scorpii 2008. IAUC 8972, 2008 Sept. 6. V466 And. Newly discovered cataclysmic variable with large amplitude outburst. IAUC 8971, 2008 Sept. 5. Possible nova in Cen. CBET 1497, 2008 Sept. 5. CI Cyg. First outburst since 1975. CBET 1487, 2008 Sept. 1. V1647 Ori. New outburst of variable and associated nebula. IAUC 8968, 2008 Aug. 28. V2671 Oph = N Oph 2008 No. 2. IAUC 8950, 2008 June 2. V2670 Oph = Nova Oph 2008. IAUC 8947, 2008 May 26. Luminous Transient in NGC 300. Possible V838-Mon-type variable. IAUC 8946, 2008 May 16. V5579 Sgr = Nova Sgr 2008. IAUC 8937, 2008 Apr. 11. V2491 Cyg (N Cyg 2008 No. 2). IAUC 8934, 2008 Apr. 11. NR TrA = Nova TrA 2008. IAUC 8931, 2008 Apr. 4. V2468 Cyg = Nova Cyg 2008. IAUC 8927, 2008 Mar. 8. HT Cas in outburst for first time since 2002. CBET 1203, 2008 Jan. 11. V459 Vul = Nova Vul 2007 No. 2. IAUC 8907, 2008 Jan. 1. For objects announced prior to 2008, go to theolder Headlines webpage. The CBAT's working list of novae in the Milky Way can be foundhere. A list of (apparent) novae in M31 reported to the CBAT beginning in 2004 can be found here. SupernovaeA list of recent supernovaeis available, as is our on-line form for checkingpossible supernova candidates. David Bishop maintainsawebsite showing images of recent supernovae.The best guide for ephemerides for forthcoming periodic comet returnsis the annual ICQ Comet Handbook.Predicted elements for returns up to three years into the future arepublished in the Minor Planet Circulars.Ephemerides for all currently-observable comets may be generated inthe CBAT/MPC Computer Service.Advantages Of SubscribingThe main advantage of having your own personal subscription to theIAUCs and/orMPECs is obvious: you would nolonger have to rely on second- or third-hand sources for information on newastronomical discoveries. A less obvious advantage is that the moresubscribers we have, the less we have to charge per subscription to coverour costs. We are a non-profit organization--if we increase oursubscriber base significantly, we canreduce the subscription rates by substantial amounts. You wouldalso be supporting a 125-year-old trustworthy, refereed, carefully edited source of astronomical news that is both unique and in need of your support for continuing operation.A look at the Recent News above shows you what you have been missing by notsubscribing. The uninvoiced e-mail delivery of bothIAUCs andMPECs, via a subscription toour Computer Service, is currently onlyUS$6 per month--a real bargain!Check out the condensed subscription information, as well as details onpayments by credit card.Full details on how to subscribeare also available.Our Web policy.Index to the CBAT/MPC/ICQ pages. MPC CBAT ICQ |
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