메타데이터
| 항목 |
값 |
| Designation |
C/2025 K3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2028-12-14T02:34:22.313280Z |
| Orbit solution date (soln_date, UTC) |
2026-03-21T13:42:22Z |
| Obs used |
52 |
| NEO |
- |
| M1 |
7.000 |
| K1 |
9.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2025-05-23T12:57:29.433600Z |
| Discovery magnitude (MPC) |
22.04 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2025-07-10.0000000 |
| e |
1.00146382 |
| q (au) |
3.470213 |
| a (au) |
-2370.659783 |
| i (deg) |
104.932525 |
| Ω (om, deg) |
350.616653 |
| ω (w, deg) |
188.588460 |
| M (ma, deg) |
-0.010700 |
밝기
산란 + 전체 선형
$$
M_a = (6.352 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.352 |
| n |
6.000 |
| gf |
0.995 |
| gb |
-0.887 |
| k |
0.800 |
| δ90 |
9.397 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
18:48:17.09 |
+51:10:52.8 |
HIP 92447 |
19.75 |
| 2026-03-26 12:00 |
18:48:14.47 |
+51:14:23.8 |
HIP 92447 |
20.80 |
| 2026-03-27 00:00 |
18:48:11.67 |
+51:17:55.2 |
HIP 92447 |
22.40 |
| 2026-03-27 12:00 |
18:48:08.66 |
+51:21:26.9 |
HIP 92447 |
24.44 |
| 2026-03-28 00:00 |
18:48:05.46 |
+51:24:59.0 |
HIP 92447 |
26.83 |
| 2026-03-28 12:00 |
18:48:02.07 |
+51:28:31.5 |
HIP 92447 |
29.48 |
| 2026-03-29 00:00 |
18:47:58.48 |
+51:32:04.2 |
HIP 92460 |
31.37 |
| 2026-03-29 12:00 |
18:47:54.68 |
+51:35:37.3 |
HIP 92460 |
29.69 |
| 2026-03-30 00:00 |
18:47:50.69 |
+51:39:10.7 |
HIP 92460 |
28.38 |
| 2026-03-30 12:00 |
18:47:46.50 |
+51:42:44.4 |
HIP 92460 |
27.51 |
| 2026-03-31 00:00 |
18:47:42.10 |
+51:46:18.3 |
HIP 92460 |
27.13 |
| 2026-03-31 12:00 |
18:47:37.51 |
+51:49:52.5 |
HIP 92460 |
27.27 |
| 2026-04-01 00:00 |
18:47:32.70 |
+51:53:26.9 |
HIP 91969 |
26.76 |
| 2026-04-01 12:00 |
18:47:27.70 |
+51:57:01.6 |
HIP 91969 |
25.26 |
| 2026-04-02 00:00 |
18:47:22.48 |
+52:00:36.4 |
HIP 91969 |
24.19 |
| 2026-04-02 12:00 |
18:47:17.06 |
+52:04:11.5 |
HIP 91969 |
23.62 |
| 2026-04-03 00:00 |
18:47:11.43 |
+52:07:46.7 |
HIP 91969 |
23.60 |
| 2026-04-03 12:00 |
18:47:05.59 |
+52:11:22.1 |
HIP 91969 |
24.11 |
| 2026-04-04 00:00 |
18:46:59.53 |
+52:14:57.7 |
HIP 91969 |
25.15 |
| 2026-04-04 12:00 |
18:46:53.27 |
+52:18:33.4 |
HIP 91969 |
26.64 |
| 2026-04-05 00:00 |
18:46:46.79 |
+52:22:09.2 |
HIP 91969 |
28.52 |
| 2026-04-05 12:00 |
18:46:40.09 |
+52:25:45.2 |
HIP 91969 |
30.73 |
| 2026-04-06 00:00 |
18:46:33.18 |
+52:29:21.2 |
HIP 92133 |
29.96 |
| 2026-04-06 12:00 |
18:46:26.06 |
+52:32:57.3 |
HIP 92133 |
26.45 |
| 2026-04-07 00:00 |
18:46:18.71 |
+52:36:33.4 |
HIP 92133 |
23.02 |
| 2026-04-07 12:00 |
18:46:11.14 |
+52:40:09.6 |
HIP 92133 |
19.72 |
| 2026-04-08 00:00 |
18:46:03.36 |
+52:43:45.8 |
HIP 92133 |
16.63 |
| 2026-04-08 12:00 |
18:45:55.35 |
+52:47:22.1 |
HIP 92133 |
13.92 |
| 2026-04-09 00:00 |
18:45:47.12 |
+52:50:58.3 |
HIP 92133 |
11.84 |
| 2026-04-09 12:00 |
18:45:38.66 |
+52:54:34.5 |
HIP 92133 |
10.78 |
| 2026-04-10 00:00 |
18:45:29.98 |
+52:58:10.6 |
HIP 92133 |
11.06 |
| 2026-04-10 12:00 |
18:45:21.07 |
+53:01:46.7 |
HIP 92133 |
12.59 |
| 2026-04-11 00:00 |
18:45:11.94 |
+53:05:22.7 |
HIP 92133 |
15.00 |
| 2026-04-11 12:00 |
18:45:02.57 |
+53:08:58.7 |
HIP 92133 |
17.94 |
| 2026-04-12 00:00 |
18:44:52.98 |
+53:12:34.5 |
HIP 92133 |
21.21 |
| 2026-04-12 12:00 |
18:44:43.16 |
+53:16:10.1 |
HIP 92133 |
24.68 |
| 2026-04-13 00:00 |
18:44:33.10 |
+53:19:45.6 |
HIP 92214 |
27.79 |
| 2026-04-13 12:00 |
18:44:22.81 |
+53:23:21.0 |
HIP 92214 |
28.98 |
| 2026-04-14 00:00 |
18:44:12.29 |
+53:26:56.1 |
HIP 91843 |
26.17 |
| 2026-04-14 12:00 |
18:44:01.53 |
+53:30:31.1 |
HIP 91843 |
22.32 |
| 2026-04-15 00:00 |
18:43:50.54 |
+53:34:05.8 |
HIP 91843 |
18.49 |
| 2026-04-15 12:00 |
18:43:39.31 |
+53:37:40.3 |
HIP 91843 |
14.72 |
| 2026-04-16 00:00 |
18:43:27.84 |
+53:41:14.5 |
HIP 91843 |
11.07 |