This page contains brief information on recent astronomical discoveries as
reported in the International Astronomical
Union Circulars (IAUCs) (published by the Central
Bureau for Astronomical Telegrams) and the
Minor Planet Electronic Circulars
(MPECs) (published by the Minor Planet Center),
as well as links to ephemerides and orbital elements for comets and
You are strongly advised not to make direct links to pages beneath this
page, other than links to `index.html' pages, as they may be temporary or be
moved or renamed as circumstances dictate.
Some Press Information
Sheets are available.
Links to other sites, previously listed here, have been moved to the
International Comet Quarterly home page.
- Ephemerides and orbital elements for (potentially) observable comets.
- Note that faint sungrazers are excluded from this listing.
- C/1998 U5 (LINEAR). New discovery. IAUC 7044, 1998 Oct. 31.
- P/1998 U4 (Spahr). New discovery. IAUC 7042, 1998 Oct. 29.
- C/1998 U3 (Jäger). New discovery. IAUC 7038, 1998 Oct. 25.
- P/1998 U2 (Mueller). New discovery. IAUC 7035, 1998 Oct. 22.
- C/1998 U1 (LINEAR). New discovery. IAUC 7033, 1998 Oct. 21.
- P/1998 S1. New discovery. IAUC 7031, 1998 Oct. 19.
- C/1998 T1 (LINEAR). New discovery. IAUC 7026, 1998 Oct. 8.
- P/1998 QP54 (LONEOS-Tucker). New discovery. IAUC 7012, 1998 Sept. 14.
- C/1998 Q1 (LINEAR). New discovery. IAUC 6994, 1998 Aug. 25.
- C/1998 P1 (Williams). New discovery. IAUC 6986, 1998 Aug. 11.
- P/1998 O1 (Shoemaker-Levy 7). Recovery of P/1991 V2 (= 1991d1 = 1991 XIX). IAUC 6979, 1998 July 27.
- C/1998 M6 (Montani). New discovery. IAUC 6960, 1998 July 1.
- C/1998 M5 (LINEAR). New discovery. IAUC 6959, 1998 July 1.
- C/1998 M4 (LINEAR). New discovery. IAUC 6954, 1998 June 27.
- C/1998 M3 (Larsen). New discovery. IAUC 6951, 1998 June 25.
- C/1998 M2 (LINEAR). New discovery. IAUC 6949, 1998 June 20.
- C/1998 M1 (LINEAR). New discovery. IAUC 6940, 1998 June 16.
- P/1998 K6 (Shoemaker-Levy 2). Recovery of P/1990 UL3 (= 1990p = 1990 XVI). IAUC 6928, 1998 June 2.
- C/1998 K5 (LINEAR). New discovery. IAUC 6923, 1998 May 30.
- P/1998 K4 (Mueller 3). Recovery of P/1990 S1 (= 1990l = 1990 XIII). IAUC 6919, 1998 May 26.
- C/1998 K3 (LINEAR). New discovery. IAUC 6916, 1998 May 26.
- C/1998 K2 (LINEAR). New discovery. IAUC 6915, 1998 May 25.
- C/1998 K1 (Mueller). New discovery. IAUC 6908, 1998 May 18.
- C/1998 J1 (SOHO). New discovery. IAUC 6894, 1998 May 5.
- C/1998 H1 (Stonehouse). New discovery. IAUC 6883, 1998 Apr. 26.
- C/1998 G1 (LINEAR). New discovery. IAUC 6863, 1998 Apr. 6.
- 135P/1998 B1 (Shoemaker-Levy 8). Recovery of P/1992 G2 (= 1992f = 1992 XV). IAUC 6821, 1998 Feb. 9.
- 134P/1997 X2 (Kowal-Vávrová). Recovery of P/1983 J3 (= 1983t = 1983 III) = 1983 JG. IAUC 6784, 1997 Dec. 10.
- C/1997 V1 (Larsen). New discovery. IAUC 6767, 1997 Nov. 3.
- P/1997 T3 (Lagerkvist-Carsenty). New discovery. IAUC 6754, 1997 Oct. 7.
- C/1997 T1 (Utsunomiya). New discovery. IAUC 6751, 1997 Oct. 5.
- C/1997 P2 (Spacewatch). New discovery. IAUC 6717, 1997 Aug. 13.
- C/1997 O1 (Tilbrook). New discovery. IAUC 6705, 1997 July 23.
Recent magnitude estimates for observable
comets (as reported to the CBAT and the International
- S/1997 U 1 and S/1997 U 2: two new distant Uranian satellites. IAUC 6764, 1997 Oct 31.
- Orbit diagram, showing the
path of the new satellites in relation to Uranus.
A list of recent supernovae
is available, as is our on-line form for checking
possible supernova candidates.
- 1998en. IAUC 7045, 1998 Nov. 2.
- 1998em. IAUC 7041, 1998 Oct. 28.
- 1998el. IAUC 7039, 1998 Oct. 26.
- 1998ek. IAUC 7035, 1998 Oct. 22.
- 1998ej. IAUC 7035, 1998 Oct. 22.
- 1998ei. IAUC 7034, 1998 Oct. 22.
- 1998eh. IAUC 7034, 1998 Oct. 22.
- 1998eg. IAUC 7033, 1998 Oct. 21.
- 1998ef. IAUC 7032, 1998 Oct. 19.
- 1998ee. IAUC 7030, 1998 Oct. 17.
- 1998ed. IAUC 7030, 1998 Oct. 17.
- 1998ec. IAUC 7022, 1998 Sept. 28.
- 1998eb. IAUC 7016, 1998 Sept. 19.
1998ea. IAUC 7015, 1998 Sept. 17.
- 1998dx. IAUC 7011, 1998 Sept. 14.
1998du. IAUC 7007, 1998 Sept. 3.
1998dt. IAUC 7006, 1998 Sept. 2.
The best guide for ephemerides for forthcoming periodic comet returns
is the annual ICQ Comet Handbook.
Predicted elements for returns up to three years into the future are
published in the Minor Planet Circulars.
Ephemerides for all currently-observable comets may be generated in
the CBAT/MPC Computer Service.
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