ICQ Comet Handbook in 2026
The period of ephemeris is 2025 Dec. 31 to 2027 Mar. 6 with 10 day interval.
To do simple job and adjustment with 66 lines / one page, even if magnitude is fainter
than 23.5, all dates are mentioned. Or too fait comets, m1 and m2 are used, sorry.
Here some orbits weren't re-improved like every year I did. But orbit has
the accuracy within +/-4" for nearly parabolics and +/- 8" for periodics which
were checked for the last observations. But there is a possibility that some
comets, like un-recovered comets, will show more large residual.
Please set your Browser to Multiple language or Japanese language (shift JIS)
because there are some Japanese characters on title and remarks.
Comet catalog for observable 389 comets in 2026 + 1P/Halley:
One line is composed by 162 characters. If your printer has ESC Sequential code,
set your printer on LP mode, Landscape and set Ctl-V+ESC+"E".
Catalog 2026 (UTF8; including Japanese characters)
Catalog in NK format (UTF8; Epoch 2026 June 9)
Package file of all ephemeris (3.3-Mbytes):
One line is composed by 136 characters. If your printer has ESC Sequential code,
set your printer on LP mode, Landscape and set Ctl-V+ESC+"H".
All ephemerides (UTF8; no including Japanese character)
All ephemerides (UTF8; including Japanese characters)
Ephemeris for each comet:
These are including Japanese characters, set your Browser to shift-JIS.
For the magnitude of duplicated numbered comets with minor planets and A/ objects
were use m2 instead of V magnitude to do simple jobs. Or some faint comets are used m2.
Note these are original copy from computer directly without correction by hand.
Value of T, q and e are on Epoch 2026 June 9 TT
174P/Echeclus T= 2015 Apr. 14.6, q= 5.872, e= 0.454
C/2013 C2 (Tenagra) T= 2015 Aug. 30.7, q= 9.108, e= 0.426
C/2014 B1 (Schwartz) T= 2017 Sep. 10.1, q= 9.538, e= 1.000
C/2010 U3 (Boattini) T= 2019 Mar. 1.3, q= 8.442, e= 1.000
29P/Schwassmann-Wachmann T= 2019 Apr. 21.5, q= 5.798, e= 0.042
378P/McNaught T= 2020 Oct. 3.0, q= 3.377, e= 0.462
C/2020 H5 (Robinson) T= 2020 Dec. 10.2, q= 9.334, e= 0.998
P/2020 V3 (PANSTARRS) T= 2021 Feb. 17.4, q= 6.246, e= 0.257
C/2019 O3 (Palomar) T= 2021 Mar. 6.9, q= 8.819, e= 1.001
C/2020 F5 (MASTER) T= 2021 Mar. 15.7, q= 4.322, e= 0.973
C/2020 P3 (ATLAS) T= 2021 Apr. 23.2, q= 6.819, e= 1.003
158P/Kowal-LINEAR T= 2022 Oct. 31.6, q= 5.102, e= 0.112
C/2016 Q2 (PANSTARRS) T= 2021 May 10.5, q= 7.080, e= 1.001
P/2020 WJ5 (Lemmon) T= 2021 July 2.0, q= 4.979, e= 0.172
423P/Lemmon T= 2021 Oct. 1.4, q= 5.428, e= 0.122
C/2020 H6 (ATLAS) T= 2021 Sep. 29.3, q= 4.695, e= 0.997
C/2018 U1 (Lemmon) T= 2021 Nov. 1.4, q= 4.981, e= 0.999
P/2021 N2 (Fuls) T= 2021 Nov. 13.2, q= 3.810, e= 0.451
C/2014 OG392 (PANSTARRS) T= 2022 Jan. 10.8, q= 9.991, e= 0.184
402P/LINEAR T= 2021 Dec. 16.2, q= 3.948, e= 0.439
C/2019 L3 (ATLAS) T= 2022 Jan. 10.2, q= 3.563, e= 1.003
152P/Helin-Lawrence T= 2022 Jan. 11.4, q= 3.111, e= 0.306
C/2022 O1 (ATLAS) T= 2022 Feb. 14.4, q= 7.434, e= 1.000
99P/Kowal T= 2022 Apr. 9.2, q= 4.696, e= 0.229
P/2023 M4 (ATLAS) T= 2022 Apr. 12.7, q= 3.922, e= 0.279
C/2019 T4 (ATLAS) T= 2022 June 8.8, q= 4.236, e= 0.995
117P/Helin-Roman-Alu T= 2022 July 7.2, q= 3.103, e= 0.248
C/2020 F2 (ATLAS) T= 2022 July 11.7, q= 8.815, e= 1.001
408P/Novichonok-Gerke T= 2022 Oct. 5.7, q= 3.475, e= 0.267
244P/Scotti T= 2022 Nov. 20.8, q= 3.928, e= 0.199
467P/LINEAR-Grauer T= 2022 Nov. 17.7, q= 5.507, e= 0.054
129P/Shoemaker-Levy T= 2022 Dec. 5.5, q= 3.926, e= 0.085
C/2017 K2 (PANSTARRS) T= 2022 Dec. 17.8, q= 1.800, e= 0.998
C/2023 RN3 (ATLAS) T= 2023 Jan. 19.8, q= 5.183, e= 0.489
C/2019 U5 (PANSTARRS) T= 2023 Mar. 29.2, q= 3.625, e= 0.999
77P/Longmore T= 2023 Apr. 3.1, q= 2.344, e= 0.352
C/2019 O2 (PANSTARRS) T= 2023 Apr. 5.8, q= 9.679, e= 0.835
P/2023 B1 (PANSTARRS) T= 2023 May 5.4, q= 6.143, e= 0.131
C/2020 V2 (ZTF) T= 2023 May 8.6, q= 2.229, e= 1.001
C/2020 K1 (PANSTARRS) T= 2023 May 8.2, q= 3.074, e= 0.997
C/2021 X1 (Maury-Attard) T= 2023 May 27.4, q= 3.234, e= 1.000
C/2021 Q4 (Fuls) T= 2023 June 9.8, q= 7.562, e= 0.999
121P/Shoemaker-Holt T= 2023 July 1.7, q= 3.735, e= 0.186
C/2022 A3 (ATLAS) T= 2023 Sep. 29.1, q= 3.705, e= 0.996
404P/Bressi T= 2023 Oct. 29.2, q= 4.132, e= 0.123
213P/Van Ness T= 2023 Nov. 30.1, q= 1.955, e= 0.418
C/2019 E3 (ATLAS) T= 2023 Nov. 15.9, q= 10.313, e= 0.998
C/2021 A9 (PANSTARRS) T= 2023 Dec. 4.8, q= 7.767, e= 1.000
C/2021 S4 (Tsuchinshan) T= 2024 Jan. 3.9, q= 6.695, e= 0.955
C/2022 H1 (PANSTARRS) T= 2024 Jan. 18.4, q= 7.688, e= 0.991
219P/LINEAR T= 2024 Feb. 19.1, q= 2.342, e= 0.359
C/2021 S3 (PANSTARRS) T= 2024 Feb. 14.6, q= 1.318, e= 0.999
C/2022 T1 (Lemmon) T= 2024 Feb. 17.5, q= 3.443, e= 1.000
C/2022 L2 (ATLAS) T= 2024 Mar. 11.8, q= 2.694, e= 1.000
C/2021 Q6 (PANSTARRS) T= 2024 Mar. 25.2, q= 8.706, e= 1.003
C/2022 U1 (Leonard) T= 2024 Mar. 26.2, q= 4.201, e= 1.000
32P/Comas Sola T= 2024 Apr. 20.7, q= 2.026, e= 0.555
12P/Pons-Brooks T= 2024 Apr. 21.1, q= 0.781, e= 0.954
299P/Catalina-PANSTARRS T= 2024 Apr. 29.7, q= 3.154, e= 0.281
133P/Elst-Pizarro T= 2024 May 10.0, q= 2.672, e= 0.155
P/2024 FG9 (Nanshan-Hahn) T= 2024 May 20.5, q= 1.596, e= 0.510
C/2025 Q1 (ATLAS) T= 2024 July 11.9, q= 10.099, e= 0.992
472P/NEAT-LINEAR T= 2024 July 13.1, q= 3.385, e= 0.563
C/2022 S4 (Lemmon) T= 2024 July 18.7, q= 2.761, e= 0.997
362P/(457175) 2008 GO98 T= 2024 July 19.6, q= 2.864, e= 0.278
C/2022 U3 (Bok) T= 2024 July 28.6, q= 4.828, e= 0.999
C/2024 F2 (PANSTARRS) T= 2024 July 28.9, q= 3.966, e= 0.601
345P/LINEAR T= 2024 Sep. 2.4, q= 3.145, e= 0.221
491P/Spacewatch-PANSTARRS T= 2024 Sep. 5.5, q= 3.715, e= 0.258
C/2021 G2 (ATLAS) T= 2024 Sep. 9.1, q= 4.982, e= 1.001
C/2022 E2 (ATLAS) T= 2024 Sep. 14.3, q= 3.667, e= 1.000
C/2023 A3 (Tsuchinshan-ATLAS) T= 2024 Sep. 27.7, q= 0.391, e= 1.000
C/2024 B1 (Lemmon) T= 2024 Oct. 7.7, q= 1.633, e= 1.001
37P/Forbes T= 2024 Oct. 11.0, q= 1.618, e= 0.532
C/2023 U1 (Fuls) T= 2024 Oct. 13.2, q= 4.973, e= 0.998
316P/LONEOS-Christensen T= 2024 Sep. 27.5, q= 3.711, e= 0.154
476P/PANSTARRS T= 2024 Oct. 16.5, q= 3.124, e= 0.345
C/2023 C2 (ATLAS) T= 2024 Nov. 16.6, q= 2.367, e= 0.998
C/2023 H1 (PANSTARRS) T= 2024 Nov. 28.4, q= 4.446, e= 0.994
333P/LINEAR T= 2024 Nov. 29.3, q= 1.113, e= 0.736
C/2023 Q1 (PANSTARRS) T= 2024 Dec. 1.0, q= 2.576, e= 1.004
276P/Vorobjov T= 2024 Dec. 12.9, q= 3.897, e= 0.277
C/2025 N2 (ATLAS) T= 2024 Dec. 12.0, q= 8.984, e= 1.000
242P/Spahr T= 2024 Dec. 23.3, q= 3.972, e= 0.282
P/2023 JN16 (Lemmon) T= 2024 Dec. 31.8, q= 2.298, e= 0.147
136P/Mueller T= 2025 Jan. 4.8, q= 2.961, e= 0.293
C/2024 N4 (Sarneczky) T= 2025 Jan. 10.4, q= 5.399, e= 1.003
367P/Catalina T= 2025 Jan. 11.4, q= 2.527, e= 0.280
C/2024 G3 (ATLAS) T= 2025 Jan. 13.4, q= 0.093, e= 1.000
C/2023 T3 (Fuls) T= 2025 Jan. 25.4, q= 3.548, e= 0.996
C/2023 F3 (ATLAS) T= 2025 Feb. 2.8, q= 5.192, e= 1.002
P/2025 C1 (ATLAS) T= 2025 Feb. 6.6, q= 2.745, e= 0.345
C/2024 G7 (ATLAS) T= 2025 Feb. 9.8, q= 6.027, e= 1.001
P/2025 D4 (ATLAS) T= 2025 Feb. 14.3, q= 3.254, e= 0.634
C/2025 W1 (Sankovich) T= 2025 Feb. 17.6, q= 4.169, e= 1.0
P/2023 S1 T= 2025 Feb. 24.3, q= 2.620, e= 0.318
48P/Johnson T= 2025 Mar. 2.7, q= 2.008, e= 0.426
302P/Lemmon-PANSTARRS T= 2025 Mar. 9.0, q= 3.288, e= 0.228
P/2010 H2 (Vales) T= 2025 Mar. 10.3, q= 3.075, e= 0.198 [Required RECOVERY]
496P/Hill T= 2025 Mar. 10.2, q= 1.621, e= 0.734
C/2024 L5 (ATLAS) T= 2025 Mar. 10.9, q= 3.436, e= 1.038
C/2024 C2 (PANSTARRS) T= 2025 Mar. 13.5, q= 8.992, e= 0.446
C/2024 T3 (PANSTARRS) T= 2025 Mar. 15.1, q= 3.716, e= 0.957
C/2024 J2 (Wierzchos) T= 2025 Mar. 19.7, q= 1.810, e= 0.987
351P/Wiegert-PANSTARRS T= 2025 Mar. 25.7, q= 3.131, e= 0.294
486P/Leonard T= 2025 Apr. 3.7, q= 2.309, e= 0.363
504P/WISE-PANSTARRS T= 2025 Apr. 9.1, q= 2.224, e= 0.406
49P/Arend-Rigaux T= 2025 Apr. 10.5, q= 1.431, e= 0.598
C/2024 N3 (Sarneczky) T= 2025 Apr. 11.6, q= 5.014, e= 1.002
456P/PANSTARRS T= 2025 Apr. 14.8, q= 2.802, e= 0.115
C/2024 J4 (Lemmon) T= 2025 Apr. 25.9, q= 5.695, e= 0.998
P/2015 X6 (PANSTARRS) T= 2025 May 10.2, q= 2.272, e= 0.173 [Required RECOVERY]
C/2023 X7 (PANSTARRS) T= 2025 May 14.9, q= 4.820, e= 0.998
P/2016 G1 (PANSTARRS) T= 2025 May 16.0, q= 2.041, e= 0.209 [Required RECOVERY]
250P/Larson T= 2025 May 16.7, q= 2.272, e= 0.398
217P/LINEAR T= 2025 May 25.0, q= 1.224, e= 0.689
164P/Christensen T= 2025 May 27.3, q= 1.674, e= 0.541
C/2024 G2 (ATLAS) T= 2025 June 13.7, q= 5.348, e= 0.992
C/2024 A1 (ATLAS) T= 2025 June 12.9, q= 3.874, e= 0.999
513P/Broughton T= 2025 June 13.8, q= 3.254, e= 0.551
65P/Gunn T= 2025 June 16.1, q= 2.925, e= 0.248
C/2024 L2 (PANSTARRS) T= 2025 June 16.5, q= 8.325, e= 1.003
C/2025 B1 (PANSTARRS) T= 2025 June 26.9, q= 3.529, e= 1.003
C/2023 H5 (Lemmon) T= 2025 June 30.4, q= 4.312, e= 1.000
C/2024 X2 (ATLAS) T= 2025 July 7.2, q= 3.669, e= 0.929
C/2023 V1 (Lemmon) T= 2025 July 13.0, q= 5.092, e= 1.000
60P/Tsuchinshan T= 2025 July 20.6, q= 1.645, e= 0.533
C/2025 K4 (Siverd) T= 2025 July 28.2, q= 2.531, e= 0.941
C/2022 N2 (PANSTARRS) T= 2025 Aug. 1.1, q= 3.826, e= 1.004
P/2024 X1 (Fazekas) T= 2025 Aug. 2.8, q= 3.816, e= 0.593
43P/Wolf-Harrington T= 2025 Aug. 4.4, q= 2.442, e= 0.435
502P/NEAT T= 2025 Aug. 4.7, q= 4.229, e= 0.470
195P/Hill T= 2025 Aug. 6.3, q= 4.440, e= 0.310
P/2017 FL36 (PANSTARRS) T= 2025 Aug. 11.6, q= 2.832, e= 0.033 [Required RECOVERY]
P/2025 UX109 (Ye) T= 2025 Aug. 14.1, q= 2.569, e= 0.323
C/2022 R6 (PANSTARRS) T= 2025 Aug. 27.2, q= 6.566, e= 1.004
340P/Boattini T= 2025 Aug. 29.0, q= 3.057, e= 0.279
C/2024 X4 (PANSTARRS) T= 2025 Sep. 2.3, q= 3.605, e= 0.643
441P/PANSTARRS T= 2025 Sep. 8.9, q= 3.327, e= 0.194
C/2022 QE78 (ATLAS) T= 2025 Sep. 12.1, q= 5.476, e= 0.996
C/2025 R2 (SWAN) T= 2025 Sep. 12.8, q= 0.504, e= 0.994
248P/Gibbs T= 2025 Sep. 14.8, q= 2.156, e= 0.640
171P/Spahr T= 2025 Sep. 24.9, q= 1.766, e= 0.502
414P/STEREO T= 2025 Sep. 26.3, q= 0.524, e= 0.812
P/2025 W4 (PANSTARRS) T= 2025 Oct. 4.5, q= 2.034, e= 0.211
C/2025 K1 (ATLAS) T= 2025 Oct. 8.4, q= 0.334, e= 1.000
198P/ODAS T= 2025 Oct. 9.6, q= 1.994, e= 0.445
C/2024 N1 (PANSTARRS) T= 2025 Oct. 18.9, q= 4.398, e= 1.000
495P/Christensen T= 2025 Oct. 22.5, q= 3.459, e= 0.275
C/2025 K2 (PANSTARRS) T= 2025 Oct. 25.3, q= 2.863, e= 0.886
47P/Ashbrook-Jackson T= 2025 Oct. 27.9, q= 2.807, e= 0.317
C/2025 N1 (ATLAS) T= 2025 Oct. 29.4, q= 1.352, e= 6.124
172P/Yeung T= 2025 Nov. 2.3, q= 3.358, e= 0.205
503P/PANSTARRS T= 2025 Nov. 5.5, q= 1.897, e= 0.481
C/2025 A6 (Lemmon) T= 2025 Nov. 8.5, q= 0.529, e= 0.995
40P/Vaisala T= 2025 Nov. 12.0, q= 1.823, e= 0.631
C/2025 V1 (Borisov) T= 2025 Nov. 16.5, q= 0.462, e= 1.007
210P/Christensen T= 2025 Nov. 22.7, q= 0.524, e= 0.834
C/2025 R1 (ATLAS) T= 2025 Nov. 23.3, q= 1.975, e= 0.988
P/2025 S4 (Lemmon-PANSTARRS) T= 2025 Nov. 24.1, q= 2.911, e= 0.360
P/2017 B4 (PANSTARRS) T= 2025 Dec. 1.8, q= 2.816, e= 0.354
C/2025 T1 (ATLAS) T= 2025 Dec. 2.3, q= 1.108, e= 1.000
313P/Gibbs T= 2025 Dec. 2.8, q= 2.421, e= 0.234
489P/Denning T= 2025 Dec. 4.0, q= 1.561, e= 0.647
P/2025 W2 (ATLAS) T= 2025 Dec. 7.8, q= 1.453, e= 0.945
469P/PANSTARRS T= 2025 Dec. 8.4, q= 3.005, e= 0.308
P/2025 Y2 (PANSTARRS) T= 2025 Dec. 9.2, q= 3.047, e= 0.240
240P/NEAT T= 2025 Dec. 19.9, q= 2.121, e= 0.450
C/2025 L2 (MAPS) T= 2025 Dec. 20.6, q= 2.833, e= 0.994
P/1999 XN120 (Catalina) T= 2025 Dec. 20.4, q= 3.297, e= 0.214 [Required RECOVERY]
235P/LINEAR T= 2025 Dec. 22.7, q= 1.977, e= 0.426
331P/Gibbs T= 2025 Dec. 26.5, q= 2.878, e= 0.041
261P/Larson T= 2025 Dec. 27.4, q= 2.014, e= 0.422
C/2023 X2 (Leonard) T= 2025 Dec. 28.5, q= 5.088, e= 1.000
A/2025 S2 T= 2026 Jan. 2.4, q= 1.686, e= 0.973
233P/La Sagra T= 2026 Jan. 8.0, q= 1.776, e= 0.413
24P/Schaumasse T= 2026 Jan. 8.3, q= 1.183, e= 0.708
C/2026 B2 (Sun-Gao) T= 2026 Jan. 10.1, q= 1.284, e= 1.0
C/2025 L1 (ATLAS) T= 2026 Jan. 12.7, q= 1.679, e= 1.001
C/2025 Y3 (PANSTARRS) T= 2026 Jan. 13.7, q= 2.227, e= 1.0
493P/LONEOS T= 2026 Jan. 14.2, q= 3.822, e= 0.468
42P/Neujmin T= 2026 Jan. 14.9, q= 2.029, e= 0.584
A/2024 U2 T= 2026 Jan. 15.6, q= 8.179, e= 1.003
505P/Palomar T= 2026 Jan. 17.5, q= 2.835, e= 0.310
C/2024 E1 (Wierzchos) T= 2026 Jan. 20.7, q= 0.566, e= 1.000
145P/Shoemaker-Levy T= 2026 Jan. 31.9, q= 1.889, e= 0.542
131P/Mueller T= 2026 Feb. 15.7, q= 2.407, e= 0.344
303P/NEAT T= 2026 Feb. 20.0, q= 2.468, e= 0.509
C/2024 G6 (ATLAS) T= 2026 Feb. 20.5, q= 6.429, e= 1.001
379P/Spacewatch T= 2026 Feb. 22.8, q= 2.264, e= 0.350
243P/NEAT T= 2026 Feb. 25.6, q= 2.448, e= 0.359
C/2025 Q3 (ATLAS) T= 2026 Feb. 25.6, q= 2.112, e= 0.997
74P/Smirnova-Chernykh T= 2026 Feb. 9.7, q= 4.836, e= 0.070
218P/LINEAR T= 2026 Mar. 4.3, q= 1.129, e= 0.630
C/2025 A3 (Tsuchinshan) T= 2026 Mar. 15.5, q= 5.792, e= 0.432
P/2021 A5 (PANSTARRS) T= 2026 Mar. 17.2, q= 2.621, e= 0.140 [Required RECOVERY]
350P/McNaught T= 2026 Mar. 18.2, q= 3.694, e= 0.095
304P/Ory T= 2026 Mar. 18.2, q= 1.257, e= 0.600
88P/Howell T= 2026 Mar. 18.7, q= 1.357, e= 0.563
509P/Catalina T= 2026 Mar. 19.3, q= 3.692, e= 0.477
C/2024 G4 (PANSTARRS) T= 2026 Mar. 21.4, q= 4.900, e= 0.998
P/2025 U1 (Hogan) T= 2026 Mar. 24.2, q= 4.166, e= 0.294
138P/Shoemaker-Levy T= 2026 Mar. 24.3, q= 1.694, e= 0.531
245P/WISE T= 2026 Mar. 31.1, q= 2.205, e= 0.455
P/2012 O2 (McNaught) T= 2026 Apr. 1.4, q= 1.701, e= 0.531 [Required RECOVERY]
C/2026 A1 (MAPS) T= 2026 Apr. 4.5, q= 0.005, e= 0.999
188P/LINEAR-Mueller T= 2026 Apr. 13.3, q= 2.546, e= 0.416
C/2023 R1 (PANSTARRS) T= 2026 Apr. 13.3, q= 3.570, e= 1.002
76P/West-Kohoutek-Ikemura T= 2026 Apr. 13.6, q= 1.596, e= 0.539
P/2009 WX51 (Catalina) T= 2026 Apr. 14.9, q= 0.802, e= 0.739 [Required RECOVERY]
C/2025 R3 (PANSTARRS) T= 2026 Apr. 19.8, q= 0.498, e= 1.000
141P/Machholz-A T= 2026 Apr. 23.1, q= 0.807, e= 0.735
P/2011 V1 (Boattini) T= 2026 Apr. 29.2, q= 1.741, e= 0.548 [Required RECOVERY]
93P/Lovas T= 2026 May 2.9, q= 1.688, e= 0.613
162P/Siding Spring T= 2026 May 17.8, q= 1.289, e= 0.582
168P/Hergenrother T= 2026 May 18.4, q= 1.358, e= 0.620
P/2004 FY140 (LINEAR) T= 2026 May 27.7, q= 4.082, e= 0.169 [Required RECOVERY]
412P/WISE T= 2026 May 30.5, q= 1.621, e= 0.479
P/2013 T2 (Schwartz) T= 2026 June 10.9, q= 1.746, e= 0.500 [Required RECOVERY]
C/2025 J1 (Borisov) T= 2026 June 11.7, q= 3.580, e= 0.997
356P/WISE T= 2026 June 12.4, q= 2.674, e= 0.355
220P/McNaught T= 2026 June 14.1, q= 1.559, e= 0.500
P/1996 R2 (Lagerkvist) T= 2026 June 16.2, q= 2.586, e= 0.313 [Required RECOVERY]
P/1999 J6 = 2004 V9 = 2010 H3 (S.T= 2026 June 18.9, q= 0.043, e= 0.985 [Required RECOVERY]
124P/Mrkos T= 2026 June 23.5, q= 1.734, e= 0.486
78P/Gehrels T= 2026 June 25.0, q= 2.004, e= 0.462
A/2025 S3 T= 2026 June 25.0, q= 2.244, e= 0.989
320P/McNaught T= 2026 June 27.8, q= 0.975, e= 0.685
P/2009 B1 (Boattini) T= 2026 July 1.0, q= 2.447, e= 0.635 [Required RECOVERY]
383P/Christensen T= 2026 July 2.5, q= 1.425, e= 0.598
63P/Wild T= 2026 July 6.1, q= 1.974, e= 0.650
398P/Boattini T= 2026 July 7.8, q= 1.300, e= 0.583
A/2000 XO8 T= 2026 July 12.0, q= 1.470, e= 0.653 [Required RECOVERY]
P/2012 K3 (Gibbs) T= 2026 July 15.7, q= 2.101, e= 0.421 [Required RECOVERY]
P/2002 S4 = 2008 R7 (SOHO) T= 2026 July 16.3, q= 0.045, e= 0.985 [Required RECOVERY]
128P/Shoemaker-Holt-B T= 2026 July 17.0, q= 3.036, e= 0.322
C/2025 M3 (PANSTARRS) T= 2026 July 18.2, q= 6.488, e= 1.0
295P/LINEAR T= 2026 July 22.7, q= 2.025, e= 0.617
407P/PANSTARRS-Fuls T= 2026 July 25.4, q= 2.183, e= 0.374
P/2021 N1 (ZTF) T= 2026 July 26.3, q= 0.966, e= 0.675 [Required RECOVERY]
346P/Catalina T= 2026 Aug. 1.3, q= 2.215, e= 0.503
10P/Tempel T= 2026 Aug. 2.1, q= 1.417, e= 0.537
260P/McNaught T= 2026 Aug. 5.0, q= 1.417, e= 0.608
259P/Garradd T= 2026 Aug. 11.9, q= 1.805, e= 0.338
P/2026 B1 (PANSTARRS) T= 2026 Aug. 14.7, q= 2.512, e= 0.314
P/2018 VN2 (Leonard) T= 2026 Aug. 15.8, q= 2.119, e= 0.477 [Required RECOVERY]
P/1999 U2 = 2005 E4 (SOHO) T= 2026 Aug. 21.3, q= 0.043, e= 0.985 [Required RECOVERY]
P/2005 T3 (Read) T= 2026 Aug. 26.9, q= 6.252, e= 0.173 [Required RECOVERY]
175P/Hergenrother T= 2026 Sep. 3.2, q= 2.307, e= 0.374
373P/Rinner T= 2026 Sep. 5.0, q= 2.300, e= 0.393
510P/Boattini T= 2026 Sep. 9.1, q= 4.875, e= 0.247
C/2025 B2 (Borisov) T= 2026 Sep. 11.6, q= 8.239, e= 1.002
114P/Wiseman-Skiff T= 2026 Sep. 14.9, q= 1.570, e= 0.556
14P/Wolf T= 2026 Sep. 19.0, q= 2.738, e= 0.356
169P/NEAT T= 2026 Sep. 21.3, q= 0.604, e= 0.767
112P/Urata-Niijima T= 2026 Sep. 21.8, q= 1.441, e= 0.590
123P/West-Hartley T= 2026 Sep. 21.9, q= 2.158, e= 0.444
433P/(248370) 2005 QN173 T= 2026 Sep. 23.5, q= 2.378, e= 0.224
C/2025 E1 (PANSTARRS) T= 2026 Sep. 23.7, q= 3.998, e= 0.997
P/2007 K2 (Gibbs) T= 2026 Oct. 4.9, q= 2.326, e= 0.684 [Required RECOVERY]
324P/La Sagra T= 2026 Oct. 14.4, q= 2.624, e= 0.152
P/2015 X3 (PANSTARRS) T= 2026 Oct. 23.1, q= 2.798, e= 0.439 [Required RECOVERY]
247P/LINEAR T= 2026 Oct. 25.9, q= 1.483, e= 0.625
435P/PANSTARRS T= 2026 Oct. 26.5, q= 2.062, e= 0.317
275P/Hermann T= 2026 Oct. 27.8, q= 1.659, e= 0.714
161P/Hartley-IRAS T= 2026 Oct. 29.7, q= 1.265, e= 0.835
252P/LINEAR T= 2026 Nov. 9.1, q= 1.003, e= 0.671
11P/Tempel-Swift-LINEAR T= 2026 Nov. 9.9, q= 1.387, e= 0.577
69P/Taylor T= 2026 Nov. 12.5, q= 2.270, e= 0.414
82P/Gehrels T= 2026 Nov. 15.0, q= 3.624, e= 0.123
P/2019 X2 (PANSTARRS) T= 2026 Nov. 15.7, q= 1.814, e= 0.500 [Required RECOVERY]
163P/NEAT T= 2026 Nov. 24.0, q= 2.054, e= 0.453
C/2024 J3 (ATLAS) T= 2026 Nov. 25.4, q= 3.865, e= 1.000
107P/Wilson-Harrington T= 2026 Nov. 25.6, q= 0.969, e= 0.630
512P/PANSTARRS T= 2026 Dec. 5.4, q= 4.801, e= 0.157
P/1983 V1 (Hartley-IRAS) T= 2026 Dec. 7.0, q= 1.265, e= 0.836 [Required RECOVERY]
266P/Christensen T= 2026 Dec. 7.4, q= 2.324, e= 0.340
P/2025 X1 (PANSTARRS) T= 2026 Dec. 10.4, q= 4.670, e= 0.861
P/2009 Y2 (Kowalski) T= 2026 Dec. 10.7, q= 2.369, e= 0.637 [Required RECOVERY]
34D/Gale T= 2026 Dec. 16.1, q= 1.210, e= 0.759 [Required re-discovery]
143P/Kowal-Mrkos T= 2026 Dec. 28.3, q= 2.956, e= 0.377
149P/Mueller T= 2026 Dec. 29.3, q= 2.812, e= 0.321
P/2020 G1 (Pimentel) T= 2027 Jan. 13.7, q= 0.501, e= 0.860 [Required RECOVERY]
332P/Ikeya-Murakami T= 2027 Jan. 19.6, q= 1.573, e= 0.490
P/2017 D1 (Fuls) T= 2027 Jan. 31.0, q= 2.709, e= 0.437 [Required RECOVERY]
342P/SOHO T= 2027 Feb. 5.4, q= 0.051, e= 0.983
2P/Encke T= 2027 Feb. 10.2, q= 0.338, e= 0.847
84P/Giclas T= 2027 Feb. 12.7, q= 1.719, e= 0.515
P/2019 B2 (Groeller) T= 2027 Feb. 23.6, q= 2.527, e= 0.357 [Required RECOVERY]
312P/NEAT T= 2027 Mar. 15.5, q= 1.992, e= 0.426
A/2025 A1 T= 2027 Mar. 14.8, q= 5.336, e= 1.000
P/2013 W1 (PANSTARRS) T= 2027 Mar. 16.4, q= 1.414, e= 0.593 [Required RECOVERY]
P/2016 P1 (PANSTARRS) T= 2027 Mar. 16.8, q= 2.288, e= 0.286 [Required RECOVERY]
P/2018 H2 (PANSTARRS) T= 2027 Mar. 17.5, q= 2.034, e= 0.539 [Required RECOVERY]
296P/Garradd T= 2027 Mar. 20.4, q= 1.775, e= 0.487
C/2025 V2 (Rankin) T= 2027 Mar. 23.0, q= 1.950, e= 1.000
264P/Larsen T= 2027 Mar. 23.0, q= 2.677, e= 0.336
311P/PANSTARRS T= 2027 Mar. 29.8, q= 1.936, e= 0.115
354P/LINEAR T= 2027 Apr. 2.8, q= 2.004, e= 0.124
160P/LINEAR T= 2027 Apr. 7.2, q= 1.796, e= 0.524
371P/LINEAR-Skiff T= 2027 Apr. 26.1, q= 2.189, e= 0.476
156P/Russell-LINEAR T= 2027 Apr. 30.6, q= 1.334, e= 0.614
P/2017 S8 (PANSTARRS) T= 2027 May 4.7, q= 1.691, e= 0.391 [Required RECOVERY]
C/2026 B3 (PANSTARRS) T= 2027 May 5.2, q= 5.815, e= 0.995
C/2024 T5 (ATLAS) T= 2027 May 6.3, q= 3.839, e= 1.002
430P/Scotti T= 2027 May 21.2, q= 1.549, e= 0.500
P/2010 H4 (Scotti) T= 2027 May 21.3, q= 4.849, e= 0.267 [Required RECOVERY]
P/2019 A4 (PANSTARRS) T= 2027 May 27.3, q= 2.384, e= 0.087 [Required RECOVERY]
P/2020 MK4 (PANSTARRS) T= 2027 May 14.8, q= 6.127, e= 0.015 [Required RECOVERY]
178P/Hug-Bell T= 2027 June 21.5, q= 1.881, e= 0.482
288P/(300163) 2006 VW139 T= 2027 June 28.9, q= 2.443, e= 0.199
P/2010 D2 (WISE) T= 2027 July 10.0, q= 3.682, e= 0.451 [Required RECOVERY]
92P/Sanguin T= 2027 July 15.4, q= 1.818, e= 0.659
201P/LONEOS T= 2027 July 20.3, q= 1.216, e= 0.637
139P/Vaisala-Oterma T= 2027 July 23.3, q= 3.392, e= 0.248
450P/LONEOS T= 2027 Apr. 26.8, q= 5.353, e= 0.291
223P/Skiff T= 2027 July 24.8, q= 2.428, e= 0.416
344P/Read T= 2027 July 25.1, q= 2.797, e= 0.423
231P/LINEAR-NEAT T= 2027 Aug. 1.9, q= 3.094, e= 0.240
P/2004 V5 (LINEAR-Hill) T= 2027 Aug. 4.9, q= 4.433, e= 0.450 [Required RECOVERY]
183P/Korlevic-Juric T= 2027 Aug. 31.8, q= 4.234, e= 0.103
P/2021 Q5 (ATLAS) T= 2027 Aug. 19.7, q= 1.234, e= 0.624 [Required RECOVERY]
359P/LONEOS T= 2027 Aug. 24.3, q= 3.144, e= 0.322
7P/Pons-Winnecke T= 2027 Aug. 25.6, q= 1.134, e= 0.660
P/1998 VS24 (LINEAR) T= 2027 Sep. 8.3, q= 3.419, e= 0.243 [Required RECOVERY]
348P/PANSTARRS T= 2027 Sep. 19.3, q= 2.181, e= 0.307
104P/Kowal T= 2027 Oct. 11.1, q= 1.072, e= 0.665
A/2025 Y1 T= 2027 Oct. 13.9, q= 2.600, e= 0.999
C/2024 R4 (PANSTARRS) T= 2027 Oct. 26.8, q= 4.408, e= 1.002
357P/Hill T= 2027 Oct. 30.0, q= 2.513, e= 0.435
75D/Kohoutek T= 2027 Oct. 30.4, q= 1.769, e= 0.499
297P/Beshore T= 2027 Oct. 29.2, q= 2.578, e= 0.276
315P/LONEOS T= 2027 Nov. 16.4, q= 2.356, e= 0.522
C/2025 M2 (PANSTARRS) T= 2027 Nov. 23.4, q= 2.721, e= 1.001
C/2024 D1 (Lemmon) T= 2027 Dec. 3.6, q= 6.690, e= 0.999
56P/Slaughter-Burnham T= 2027 Dec. 19.4, q= 2.490, e= 0.508
P/2011 N1 (ASH) T= 2028 Jan. 1.2, q= 2.833, e= 0.545 [Required RECOVERY]
257P/Catalina T= 2028 Jan. 1.5, q= 2.153, e= 0.428
187P/LINEAR T= 2028 Feb. 7.7, q= 3.830, e= 0.156
9P/Tempel T= 2028 Feb. 11.3, q= 1.764, e= 0.465
191P/McNaught T= 2028 Feb. 29.9, q= 2.240, e= 0.384
59P/Kearns-Kwee T= 2028 Mar. 15.6, q= 2.341, e= 0.476
31P/Schwassmann-Wachmann T= 2028 Mar. 19.3, q= 3.409, e= 0.193
67P/Churyumov-Gerasimenko T= 2028 Apr. 9.4, q= 1.212, e= 0.649
P/2020 U2 (PANSTARRS) T= 2028 May 2.0, q= 1.846, e= 0.511 [Required RECOVERY]
463P/NEOWISE T= 2028 May 15.3, q= 0.517, e= 0.826
372P/McNaught T= 2028 May 23.3, q= 3.833, e= 0.150
C/2025 D1 (Groeller) T= 2028 May 22.5, q= 14.116, e= 1.003
P/2010 UH55 (Spacewatch) T= 2028 June 2.0, q= 2.892, e= 0.564 [Required RECOVERY]
419P/PANSTARRS T= 2028 June 15.7, q= 2.578, e= 0.271
380P/PANSTARRS T= 2028 Aug. 6.6, q= 2.977, e= 0.332
176P/(118401) LINEAR T= 2028 Aug. 6.3, q= 2.584, e= 0.191
228P/LINEAR T= 2028 Sep. 5.4, q= 3.420, e= 0.177
P/2010 C1 (Scotti) T= 2028 Sep. 20.3, q= 5.246, e= 0.264 [Required RECOVERY]
232P/Hill T= 2028 Sep. 20.8, q= 2.965, e= 0.336
284P/McNaught T= 2028 Oct. 1.5, q= 2.303, e= 0.374
91P/Russell T= 2028 Oct. 25.5, q= 3.125, e= 0.250
215P/NEAT T= 2028 Nov. 23.2, q= 3.622, e= 0.164
C/2023 RS61 (PANSTARRS) T= 2028 Dec. 4.2, q= 7.992, e= 0.327 [Required RECOVERY]
19P/Borrelly T= 2028 Dec. 11.6, q= 1.308, e= 0.637
C/2025 K3 (PANSTARRS) T= 2028 Dec. 14.1, q= 3.468, e= 1.001
P/2013 YG46 (Spacewatch) T= 2028 Dec. 13.4, q= 1.682, e= 0.480 [Required RECOVERY]
53P/Van Biesbroeck T= 2028 Dec. 24.6, q= 2.444, e= 0.550
116P/Wild T= 2029 Jan. 17.2, q= 2.190, e= 0.371
P/2005 S2 (Skiff) T= 2029 Jan. 27.7, q= 6.399, e= 0.197 [Required RECOVERY]
P/2025 D2 (PANSTARRS) T= 2029 Mar. 17.9, q= 7.398, e= 0.151 [Required RECOVERY]
186P/Garradd T= 2029 Aug. 10.6, q= 4.281, e= 0.121
81P/Wild T= 2029 May 14.5, q= 1.593, e= 0.538
44P/Reinmuth T= 2029 May 21.0, q= 2.114, e= 0.426
415P/Tenagra T= 2029 June 13.8, q= 3.302, e= 0.195
C/2025 M1 (PANSTARRS) T= 2029 Aug. 2.4, q= 10.832, e= 0.998
P/2010 H5 (Scotti) T= 2029 May 28.4, q= 6.036, e= 0.157 [Required RECOVERY]
246P/NEAT T= 2029 Oct. 30.7, q= 3.435, e= 0.208
P/2022 BV9 (Lemmon) T= 2029 Dec. 5.8, q= 3.349, e= 0.233 [Required RECOVERY]
111P/Helin-Roman-Crockett T= 2029 Dec. 7.7, q= 3.708, e= 0.107
P/2005 L1 (McNaught) T= 2029 Oct. 30.8, q= 2.636, e= 0.301 [Required RECOVERY]
119P/Parker-Hartley T= 2030 Jan. 19.3, q= 2.333, e= 0.387
P/2012 B1 (PANSTARRS) T= 2030 Mar. 6.8, q= 3.857, e= 0.410 [Required RECOVERY]
P/2017 U3 (PANSTARRS) T= 2030 Mar. 17.9, q= 4.421, e= 0.100 [Required RECOVERY]
203P/Korlevic T= 2030 Apr. 9.8, q= 3.192, e= 0.316
P/2023 B3 (PANSTARRS) T= 2030 May 23.5, q= 3.998, e= 0.121 [Required RECOVERY]
282P/(323137) 2003 BM80 T= 2030 July 9.3, q= 3.438, e= 0.187
200P/Larsen T= 2030 Aug. 7.1, q= 3.318, e= 0.330
254P/McNaught T= 2030 Sep. 2.9, q= 3.150, e= 0.318
P/2011 P1 (McNaught) T= 2030 Dec. 23.5, q= 5.032, e= 0.326 [Required RECOVERY]
C/2014 UN271 (Bernardinelli-Ber T= 2031 Jan. 16.3, q= 10.960, e= 1.004
P/2015 M2 (PANSTARRS) T= 2035 Mar. 8.0, q= 5.965, e= 0.177 [Required RECOVERY]
P/2019 LD2 (ATLAS) T= 2031 Sep. 19.3, q= 4.439, e= 0.136 [Required RECOVERY]
95P/Chiron T= 2046 Aug. 1.9, q= 8.487, e= 0.379
1P/Halley T= 2061 Aug. 7.4, q= 0.571, e= 0.968
Back to Observable comets Page
Back to Menu Page