C/2025 K1-B (ATLAS) _ CK25K01b →fragment B C/2025 K1 (ATLAS)

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C/2025 K1-B (ATLAS) _ CK25K01b → fragment B C/2025 K1 (ATLAS) _ CK25K010 _ A11nyuL object, MPEC 2025-W40
Ø кометного ядра н/д

C2025 K1-B (ATLAS) _ CK25K01b → fragment B C2025 K1 (ATLAS) _ CK25K010 _ A11nyuL object _ MPEC 2025-W40 _ 18 11 2025 _ 1.png

C2025 K1-B (ATLAS) _ CK25K01b → fragment B C2025 K1 (ATLAS) _ CK25K010 _ A11nyuL object _ MPEC 2025-W40 _ 18 11 2025 _ 2.png

C2025 K1-B (ATLAS) _ CK25K01b → fragment B C2025 K1 (ATLAS) _ CK25K010 _ A11nyuL object _ MPEC 2025-W40 _ 17 11 2025 _ 1.png

C/2025 K1-B (ATLAS) / CK25K01b (e=1.001, i=147.9°, q=0.335 AU, TP=2025 Oct. 8.45 TT) was picked up at 1200 UT on 5 Nov. by Discovery Channel Telescope (DCT), which observed it at Nov. 5.50-51p5. This detection was confirmed by Chante-Perdrix Obs. (Nov. 10.19-20p3, 13.18-19p3, 14.20-21p2 & 17.16-17p3), AstroCamp Nerpio (Nov. 12.23p2 & 13.22-23p3), Hirao Obs. (Nov. 13.83p3), Berthelot Obs. (Nov. 14.07p2 & 14.12p1), AZM Martinsberg (Nov. 14.10-11p3), Loiano Obs. (Nov. 14.14-17p3), Buchloe Obs. (Nov. 14.16-17p3), Al-Khatim Obs. (Nov. 15.06p3), LCO Tenerife Aqawan A#2 (Nov. 15.26-27p5), roving observer (Nov. 15.53-54p2), Al-Fulaij Obs. (Nov. 17.03p4), and Chelmsford Obs. (Nov. 17.19p2).

Orbital elements:
C/2025 K1-B (ATLAS)
Epoch 2025 Nov. 21.0 TT = JDT 2461000.5
T 2025 Oct. 8.44580 TT Pike
q 0.3348308 (2000.0) P Q
z -0.0030032 Peri. 271.14465 -0.84204120 -0.11529512
+/-0.0017441 Node 97.59057 +0.12695688 +0.90708727
e 1.0010056 Incl. 147.88598 -0.52426002 +0.40484531
From 50 observations 2025 Nov. 5-17, mean residual 0".6.

Ephemeris:
Date TT R. A. (2000) Decl. Delta r Elong. Phase m1 m2
2025 10 18 12 03 37.6 -06 57 14 1.1550 0.4342 21.7 58.1 8.9
...
2025 11 02 11 36 51.4 +05 59 27 0.8006 0.7394 47.2 80.1 10.4
...
2025 11 10 11 23 03.2 +17 48 56 0.6090 0.9047 63.8 79.1 10.7
...
2025 11 16 11 05 10.4 +32 08 56 0.4864 1.0249 80.2 72.0 10.7
2025 11 17 11 00 39.9 +35 11 55 0.4696 1.0446 83.4 70.1 10.7
2025 11 18 10 55 25.1 +38 27 20 0.4541 1.0642 86.7 68.0 10.8
...
2025 11 24 09 50 25.3 +61 12 33 0.4019 1.1797 108.7 52.4 10.9
...
2025 12 02 03 42 13.0 +72 34 26 0.4657 1.3285 128.8 35.3 11.8
...
2025 12 17 01 06 46.7 +47 41 56 0.8382 1.5937 121.8 31.7 13.8



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