C/2025 X1 (PanSTARRS) _ CK25X010 _ P12iL57 object ..

[Gremlin]

C/2025 X1 (PanSTARRS) _ CK25X010 _ P12iL57 object (Jan. 6.68 UT), MPEC 2026-A15, CBET 5650
Ø кометного ядра 6131 м

C2025 X1 (PanSTARRS) _ CK25X010 _ P12iL57 object (Jan. 6.68 UT) _ MPEC 2026-A15, CBET 5650 _ 2026 mag _ 23 01 2026 _ 1.gif

C2025 X1 (PanSTARRS) _ CK25X010 _ P12iL57 object (Jan. 6.68 UT) _ MPEC 2026-A15, CBET 5650 _ 18 00 UTC + 3 мск _ 12 01 2026 _ 1.gif

C2025 X1 (PanSTARRS) _ CK25X010 _ P12iL57 object (Jan. 6.68 UT) _ MPEC 2026-A15, CBET 5650 _ 12 01 2026 _ 1.png

C2025 X1 (PanSTARRS) _ CK25X010 _ P12iL57 object (Jan. 6.68 UT) _ MPEC 2026-A15, CBET 5650 _ 12 01 2026 _ 2.png

C2025 X1 (PanSTARRS) _ CK25X010 _ P12iL57 object (Jan. 6.68 UT) _ MPEC 2026-A15, CBET 5650 _ 06 01 2026 _ 1.png

C/2025 X1 (PANSTARRS) / CK25X010 (i=37.0°, q=4.697 AU, Q=65.928 AU, TP=2026 Dec. 6.12 TT) was picked up at 1500 UT on 12 Dec. 2025 by Pan-STARRS 1 (PS1), which observed it at Dec. 12.63-65p4. This detection was confirmed by Castaneda/ZTF (Dec. 11.30-31p2, 11.48p3 & 12.47p1), 29PREMOTE Obs. (Dec. 13.20-24p3), Steward Obs. Mt. Lemmon Station (Dec. 13.42-44p3), R. Weryk via Canada-France-Hawaii Telescope (Dec. 13.59p3 & 22.59p3), Sormano2 Obs. (Dec. 14.07p1 & 14.12-15p3), Purple Mtn. Obs. Xuyi Station (Dec. 14.83-86p6), A. Aletti via Schiaparelli Obs. (Dec. 14.94-98p2 & 15.06p1), AZM Martinsberg (Dec. 14.95-97p3), E.J. Christensen via the Mt. Lemmon Survey (MLS) (Dec. 18.39-41p4), J.D. Armstrong via Faulkes Telescope North (Dec. 18.47-48p4), Santa Maria de Montmagastrell Obs. (Dec. 19.05-07p3), Comet Hunter Obs. (Dec. 22.26-29p3), Tarbatness Obs. (Dec. 22.00-03p2 & 26.04-08p2), PS2 (Dec. 24.57-60p4), Shima/GOTO Yatsugatake (Dec. 27.75p2), Sormano Obs. (Dec. 27.93p2), Rozzano Civic Obs. (Dec. 28.00-01p3), Visnjan Obs. (Dec. 29.02-05p4), M. Tichy & team via KLENOT (Dec. 29.03p3), and So. Utsunomiya (Dec. 31.73-75p3).

Orbital elements:
C/2025 X1 (PANSTARRS)
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2026 Dec. 6.12150 TT Pike
q 4.6967574 (2000.0) P Q
n 0.00520770 Peri. 84.77960 -0.80077126 +0.02573093
a 32.9638969 Node 95.65189 -0.22702957 -0.93756759
e 0.8575181 Incl. 36.96598 +0.55427697 -0.34685002
P 189
From 77 observations 2025 Dec. 11-31, mean residual 0".5.

Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2025 12 07 10 13 42.4 +38 21 08 4.9492 5.3869 111.4 9.8 21.0
...
2025 12 22 10 17 28.9 +40 06 50 4.7223 5.3358 124.1 8.8 20.8
...
2025 12 30 10 18 10.5 +41 08 38 4.6175 5.3092 130.5 8.1 20.8
...
2026 01 05 10 18 04.3 +41 56 21 4.5477 5.2895 135.1 7.5 20.7
2026 01 06 10 18 00.2 +42 04 22 4.5369 5.2862 135.8 7.5 20.7
2026 01 07 10 17 55.1 +42 12 23 4.5262 5.2830 136.5 7.4 20.7
...
2026 01 13 10 17 06.3 +43 00 29 4.4676 5.2636 140.5 6.8 20.7
...
2026 01 21 10 15 13.6 +44 03 24 4.4036 5.2382 144.8 6.2 20.6
...
2026 02 05 10 09 37.6 +45 50 32 4.3294 5.1917 148.0 5.8 20.5



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