메타데이터
| 항목 |
값 |
| Designation |
418P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-04-19T02:07:15.358080Z |
| Orbit solution date (soln_date, UTC) |
2022-10-07T00:44:00Z |
| Obs used |
775 |
| NEO |
- |
| M1 |
13.900 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2020-12-23T11:39:09.792000Z |
| Discovery magnitude (MPC) |
21.70 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2012-02-05.0000000 |
| e |
0.66371734 |
| q (au) |
1.715751 |
| a (au) |
5.102109 |
| i (deg) |
5.780390 |
| Ω (om, deg) |
277.862905 |
| ω (w, deg) |
306.887500 |
| M (ma, deg) |
56.180600 |
밝기
산란 + 전체 선형
$$
M_a = (10.828 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.828 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.850 |
| k |
1.000 |
| δ90 |
9.999 |
| 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) |
| 2026-09-20 00:00 |
02:35:40.71 |
+20:57:42.8 |
HIP 12161 |
21.49 |
| 2026-09-20 12:00 |
02:35:32.46 |
+20:57:18.4 |
HIP 12161 |
22.57 |
| 2026-09-21 00:00 |
02:35:24.10 |
+20:56:53.4 |
HIP 12161 |
23.78 |
| 2026-09-21 12:00 |
02:35:15.65 |
+20:56:27.7 |
HIP 12161 |
25.11 |
| 2026-09-22 00:00 |
02:35:07.09 |
+20:56:01.4 |
HIP 12161 |
26.54 |
| 2026-09-22 12:00 |
02:34:58.43 |
+20:55:34.5 |
HIP 12161 |
28.06 |
| 2026-09-23 00:00 |
02:34:49.66 |
+20:55:06.9 |
HIP 12161 |
29.66 |
| 2026-09-23 12:00 |
02:34:40.80 |
+20:54:38.8 |
HIP 12161 |
31.35 |
| 2026-09-24 00:00 |
02:34:31.84 |
+20:54:10.0 |
HIP 11897 |
31.48 |
| 2026-09-24 12:00 |
02:34:22.78 |
+20:53:40.6 |
HIP 11897 |
30.11 |
| 2026-09-25 00:00 |
02:34:13.63 |
+20:53:10.6 |
HIP 11897 |
28.82 |
| 2026-09-25 12:00 |
02:34:04.37 |
+20:52:40.0 |
HIP 11897 |
27.63 |
| 2026-09-26 00:00 |
02:33:55.02 |
+20:52:08.8 |
HIP 11897 |
26.55 |
| 2026-09-26 12:00 |
02:33:45.58 |
+20:51:36.9 |
HIP 11897 |
25.62 |
| 2026-09-27 00:00 |
02:33:36.04 |
+20:51:04.5 |
HIP 11803 |
24.82 |
| 2026-09-27 12:00 |
02:33:26.41 |
+20:50:31.4 |
HIP 11803 |
23.54 |
| 2026-09-28 00:00 |
02:33:16.69 |
+20:49:57.7 |
HIP 11803 |
22.41 |
| 2026-09-28 12:00 |
02:33:06.88 |
+20:49:23.4 |
HIP 11803 |
21.47 |
| 2026-09-29 00:00 |
02:32:56.98 |
+20:48:48.5 |
HIP 11803 |
20.76 |
| 2026-09-29 12:00 |
02:32:46.98 |
+20:48:13.0 |
HIP 11803 |
20.31 |
| 2026-09-30 00:00 |
02:32:36.90 |
+20:47:36.9 |
HIP 11803 |
20.14 |
| 2026-09-30 12:00 |
02:32:26.74 |
+20:47:00.2 |
HIP 11803 |
20.28 |
| 2026-10-01 00:00 |
02:32:16.48 |
+20:46:22.9 |
HIP 11803 |
20.71 |
| 2026-10-01 12:00 |
02:32:06.14 |
+20:45:45.0 |
HIP 11803 |
21.43 |
| 2026-10-02 00:00 |
02:31:55.72 |
+20:45:06.5 |
HIP 11803 |
22.42 |
| 2026-10-02 12:00 |
02:31:45.22 |
+20:44:27.5 |
HIP 11686 |
22.64 |
| 2026-10-03 00:00 |
02:31:34.63 |
+20:43:47.8 |
HIP 11686 |
21.69 |
| 2026-10-03 12:00 |
02:31:23.96 |
+20:43:07.5 |
HIP 11686 |
21.02 |
| 2026-10-04 00:00 |
02:31:13.21 |
+20:42:26.7 |
HIP 11686 |
20.65 |
| 2026-10-04 12:00 |
02:31:02.39 |
+20:41:45.3 |
HIP 11686 |
20.61 |
| 2026-10-05 00:00 |
02:30:51.48 |
+20:41:03.2 |
HIP 11686 |
20.91 |
| 2026-10-05 12:00 |
02:30:40.50 |
+20:40:20.7 |
HIP 11686 |
21.54 |
| 2026-10-06 00:00 |
02:30:29.45 |
+20:39:37.5 |
HIP 11686 |
22.48 |
| 2026-10-06 12:00 |
02:30:18.32 |
+20:38:53.8 |
HIP 11686 |
23.71 |
| 2026-10-07 00:00 |
02:30:07.12 |
+20:38:09.5 |
HIP 11686 |
25.18 |
| 2026-10-07 12:00 |
02:29:55.84 |
+20:37:24.6 |
HIP 11686 |
26.86 |
| 2026-10-08 00:00 |
02:29:44.50 |
+20:36:39.2 |
HIP 11686 |
28.72 |
| 2026-10-08 12:00 |
02:29:33.09 |
+20:35:53.2 |
HIP 11686 |
30.73 |
| 2026-10-09 00:00 |
02:29:21.61 |
+20:35:06.7 |
HIP 11686 |
32.87 |
| 2026-10-09 12:00 |
02:29:10.07 |
+20:34:19.6 |
HIP 11686 |
35.12 |
| 2026-10-10 00:00 |
02:28:58.46 |
+20:33:32.0 |
HIP 11686 |
37.47 |
| 2026-10-10 12:00 |
02:28:46.79 |
+20:32:43.9 |
HIP 11559 |
38.69 |
| 2026-10-11 00:00 |
02:28:35.06 |
+20:31:55.2 |
HIP 11559 |
39.73 |