메타데이터
| 항목 |
값 |
| Designation |
120P/Mueller 1 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2004-09-29T10:29:13.793280Z |
| Orbit solution date (soln_date, UTC) |
2022-02-14T01:12:50Z |
| Obs used |
147 |
| NEO |
- |
| M1 |
6.600 |
| K1 |
26.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2007-09-06.0000000 |
| e |
0.33653878 |
| q (au) |
2.743863 |
| a (au) |
4.135679 |
| i (deg) |
8.791195 |
| Ω (om, deg) |
4.442767 |
| ω (w, deg) |
30.008025 |
| M (ma, deg) |
125.574538 |
밝기
산란 + 전체 선형
$$
M_a = (11.540 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.540 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.503 |
| k |
1.000 |
| δ90 |
10.000 |
| 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) |
| 2026-06-01 00:00 |
15:37:00.97 |
-28:58:40.3 |
HIP 76448 |
13.24 |
| 2026-06-01 12:00 |
15:36:41.63 |
-28:57:38.2 |
HIP 76448 |
14.01 |
| 2026-06-02 00:00 |
15:36:22.36 |
-28:56:35.5 |
HIP 76318 |
14.96 |
| 2026-06-02 12:00 |
15:36:03.18 |
-28:55:32.4 |
HIP 76318 |
11.95 |
| 2026-06-03 00:00 |
15:35:44.08 |
-28:54:28.8 |
HIP 76318 |
9.97 |
| 2026-06-03 12:00 |
15:35:25.07 |
-28:53:24.6 |
HIP 76318 |
9.66 |
| 2026-06-04 00:00 |
15:35:06.14 |
-28:52:20.1 |
HIP 76318 |
11.15 |
| 2026-06-04 12:00 |
15:34:47.31 |
-28:51:15.0 |
HIP 76318 |
13.85 |
| 2026-06-05 00:00 |
15:34:28.57 |
-28:50:09.5 |
HIP 76318 |
17.18 |
| 2026-06-05 12:00 |
15:34:09.93 |
-28:49:03.6 |
HIP 76318 |
20.84 |
| 2026-06-06 00:00 |
15:33:51.39 |
-28:47:57.3 |
HIP 76318 |
24.66 |
| 2026-06-06 12:00 |
15:33:32.95 |
-28:46:50.5 |
HIP 76318 |
28.58 |
| 2026-06-07 00:00 |
15:33:14.62 |
-28:45:43.4 |
HIP 76034 |
29.15 |
| 2026-06-07 12:00 |
15:32:56.40 |
-28:44:35.9 |
HIP 76034 |
25.69 |
| 2026-06-08 00:00 |
15:32:38.29 |
-28:43:28.1 |
HIP 76034 |
22.47 |
| 2026-06-08 12:00 |
15:32:20.29 |
-28:42:19.9 |
HIP 76034 |
19.60 |
| 2026-06-09 00:00 |
15:32:02.41 |
-28:41:11.4 |
HIP 76034 |
17.25 |
| 2026-06-09 12:00 |
15:31:44.66 |
-28:40:02.5 |
HIP 76034 |
15.62 |
| 2026-06-10 00:00 |
15:31:27.02 |
-28:38:53.4 |
HIP 76034 |
14.94 |
| 2026-06-10 12:00 |
15:31:09.51 |
-28:37:44.0 |
HIP 76034 |
15.32 |
| 2026-06-11 00:00 |
15:30:52.13 |
-28:36:34.3 |
HIP 76034 |
16.66 |
| 2026-06-11 12:00 |
15:30:34.88 |
-28:35:24.3 |
HIP 76034 |
18.74 |
| 2026-06-12 00:00 |
15:30:17.76 |
-28:34:14.2 |
HIP 75836 |
20.02 |
| 2026-06-12 12:00 |
15:30:00.78 |
-28:33:03.8 |
HIP 75836 |
19.29 |
| 2026-06-13 00:00 |
15:29:43.94 |
-28:31:53.1 |
HIP 75836 |
19.34 |
| 2026-06-13 12:00 |
15:29:27.24 |
-28:30:42.3 |
HIP 75836 |
20.16 |
| 2026-06-14 00:00 |
15:29:10.69 |
-28:29:31.4 |
HIP 75836 |
21.64 |
| 2026-06-14 12:00 |
15:28:54.28 |
-28:28:20.2 |
HIP 75836 |
23.64 |
| 2026-06-15 00:00 |
15:28:38.02 |
-28:27:09.0 |
HIP 75640 |
24.97 |
| 2026-06-15 12:00 |
15:28:21.91 |
-28:25:57.6 |
HIP 75640 |
23.42 |
| 2026-06-16 00:00 |
15:28:05.96 |
-28:24:46.0 |
HIP 75640 |
22.42 |
| 2026-06-16 12:00 |
15:27:50.16 |
-28:23:34.4 |
HIP 75563 |
21.93 |
| 2026-06-17 00:00 |
15:27:34.52 |
-28:22:22.7 |
HIP 75563 |
18.31 |
| 2026-06-17 12:00 |
15:27:19.05 |
-28:21:11.0 |
HIP 75563 |
14.75 |
| 2026-06-18 00:00 |
15:27:03.73 |
-28:19:59.2 |
HIP 75563 |
11.24 |
| 2026-06-18 12:00 |
15:26:48.58 |
-28:18:47.3 |
HIP 75563 |
7.82 |
| 2026-06-19 00:00 |
15:26:33.60 |
-28:17:35.5 |
HIP 75563 |
4.64 |
| 2026-06-19 12:00 |
15:26:18.79 |
-28:16:23.6 |
HIP 75563 |
2.57 |
| 2026-06-20 00:00 |
15:26:04.15 |
-28:15:11.8 |
HIP 75563 |
3.95 |
| 2026-06-20 12:00 |
15:25:49.69 |
-28:14:00.0 |
HIP 75563 |
6.92 |
| 2026-06-21 00:00 |
15:25:35.39 |
-28:12:48.2 |
HIP 75563 |
10.13 |
| 2026-06-21 12:00 |
15:25:21.28 |
-28:11:36.5 |
HIP 75563 |
13.39 |
| 2026-06-22 00:00 |
15:25:07.34 |
-28:10:24.9 |
HIP 75563 |
16.64 |