C/2025 K1-D (ATLAS) _ CK25K01d →fragment D C/2025 K1 (ATLAS)

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C/2025 K1-D (ATLAS) _ CK25K01d → fragment D C/2025 K1 (ATLAS) _ CK25K010 _ A11nyuL object, MPEC 2025-X108
Ø кометного ядра н/д

C2025 K1-D (ATLAS) _ CK25K01d → fragment D C2025 K1 (ATLAS) _ CK25K010 _ A11nyuL object _ MPEC 2025-X108 _ 12 12 2025 _ 2.png

C2025 K1-D (ATLAS) _ CK25K01d → fragment D C2025 K1 (ATLAS) _ CK25K010 _ A11nyuL object _ MPEC 2025-X108 _ 12 12 2025 _ 3.png

C2025 K1-D (ATLAS) _ CK25K01d → fragment D C2025 K1 (ATLAS) _ CK25K010 _ A11nyuL object _ MPEC 2025-X108 _ 12 12 2025 _ 1.png

C/2025 K1-D (ATLAS) / CK25K01d (e=1.009, i=148.1°, q=0.342 AU, TP=2025 Oct. 8.49 TT) was picked up at 0447 UT on 26 Nov. by F.D. Romanov via the Liverpool Telescope, which observed it at Nov. 26.20-21p4 and Dec. 3.01-02p3. This detection was confirmed by program code 0 via Camarasa Obs. (Nov. 26.01-02p3), program code 4 via LCO Tenerife Aqawan A#1 (Nov. 26.11-12p3), Chante-Perdrix Obs. (Nov. 26.18p3, 27.14-15p3, 28.15-16p3 & 29.20-21p3), AstroCamp Nerpio (Nov. 26.22-23p2, 27.22-23p2 & 29.23-24p3), Petit Jean Mtn. South Obs. (PJMSO) (Nov. 26.34-38p9, 28.34-38p13 & Dec. 9.03-04p5), program code 19 via Discovery Channel Telescope (DCT) (Nov. 26.45-50p3), Masquefa Obs. (Nov. 26.83-84p3, 27.95-96p3, Dec. 1.90-91p3 & 3.81-82p3), Montcabre Obs. (Nov. 26.85p2, 26.90p1, Dec. 9.77p1, 9.82p1 & 9.87p1), Uraniborg Obs. (Nov. 26.94p1), J.-C. Merlin via iTelescope Obs. Beryl Jct. (Nov. 27.42p4), Cavezzo Obs. (Nov. 27.81-84p3), A. Ivanov & team via Kuban State Univ. Obs. (Nov. 27.82-83p3, 27.87-91p6, 28.82-90p12 & 29.80-84p6), program code 0 via Landete-Kea Obs. (Nov. 27.93-94p3), PGC (Nov. 28.15-17p3), Hirao Obs. (Nov. 28.50-51p3, 29.55-56p3 & 30.52-53p3), Sakai Obs. (Nov. 28.51-53p4), Tarbatness Obs. (Nov. 28.75p3, 30.13p3 & Dec. 2.95p3), Sencelles Obs. (Nov. 28.86p2), B. Lutkenhoner via Slooh.com Canary Islands Obs. (Nov. 29.19-20p5), 29PREMOTE Obs. (Nov. 29.22-23p3), Zen Obs. (Nov. 30.02-03p3), AZM Martinsberg (Nov. 30.02p3), program code 0 via ATLAS TDO (Nov. 30.06p1), Cewanee Obs. at DSNM (Nov. 30.30-31p2), roving observer (Nov. 30.73-74p4), Chelmsford Obs. (Nov. 30.74-75p3, Dec. 3.15-16p2 & 4.83-84p2), Maisoncelles Obs. (Nov. 30.74-75p3), San Costantino Obs. (Nov. 30.82-86p4), Olmen Obs. (Nov. 30.90-93p6), Corner Obs. (Dec. 1.01p1, 3.78-79p3 & 9.83-84p4), Muensterschwarzach Obs. (Dec. 1.22-23p3), Dark Sky New Mexico Obs. (Dec. 2.16p4), Forthimage Obs. (Dec. 2.77-78p2), Sukagawa Obs. (Dec. 6.42-45p3), and Buchloe Obs. (Dec. 9.72-73p2).

Orbital elements:
C/2025 K1-D (ATLAS)
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Oct. 8.49389 TT Pike
q 0.3423806 (2000.0) P Q
z -0.0258630 Peri. 272.58136 -0.84641095 -0.10092164
+/-0.0017457 Node 97.98650 +0.14258701 +0.90307779
e 1.0088550 Incl. 148.12951 -0.51308620 +0.41745100
From 208 observations 2025 Nov. 26-Dec. 9, mean residual 0".4.

Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2025 11 11 11 20 48.0 +19 47 20 0.5867 0.9250 66.2 78.3 10.7
...
2025 11 26 08 57 13.1 +68 29 13 0.4034 1.2174 115.7 46.9 11.1
...
2025 12 04 02 41 31.9 +68 31 48 0.5023 1.3649 130.2 33.5 12.1
...
2025 12 10 01 30 27.8 +56 47 56 0.6419 1.4721 128.4 31.6 12.9
2025 12 11 01 25 09.4 +55 12 36 0.6683 1.4897 127.6 31.6 13.1
2025 12 12 01 20 42.8 +53 43 41 0.6953 1.5072 126.7 31.6 13.2
...
2025 12 18 01 05 04.7 +46 43 44 0.8679 1.6108 120.7 31.7 14.0
...
2025 12 26 00 58 02.3 +40 53 00 1.1152 1.7453 112.4 31.4 14.9
...
2026 01 10 00 59 00.5 +35 16 53 1.5996 1.9874 97.7 29.4 16.2



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