메타데이터
| 항목 |
값 |
| Designation |
44P/Reinmuth 2 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-04-23T16:37:41.194560Z |
| Orbit solution date (soln_date, UTC) |
2024-03-20T08:30:40Z |
| Obs used |
1496 |
| NEO |
- |
| M1 |
14.000 |
| K1 |
5.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2020-03-31.0000000 |
| e |
0.42698572 |
| q (au) |
2.113823 |
| a (au) |
3.688953 |
| i (deg) |
5.898445 |
| Ω (om, deg) |
286.481266 |
| ω (w, deg) |
58.123620 |
| M (ma, deg) |
255.155949 |
밝기
산란 + 전체 선형
$$
M_a = (14.126 + 2.675\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.126 |
| n |
2.675 |
| gf |
0.998 |
| gb |
-0.500 |
| k |
0.800 |
| δ90 |
1.992 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
11:25:06.12 |
-01:44:24.0 |
HIP 55664 |
17.57 |
| 2026-07-29 12:00 |
11:25:25.55 |
-01:46:12.3 |
HIP 55664 |
22.34 |
| 2026-07-30 00:00 |
11:25:45.05 |
-01:48:01.2 |
HIP 55664 |
27.29 |
| 2026-07-30 12:00 |
11:26:04.63 |
-01:49:50.7 |
HIP 55713 |
28.27 |
| 2026-07-31 00:00 |
11:26:24.28 |
-01:51:40.9 |
HIP 55941 |
24.36 |
| 2026-07-31 12:00 |
11:26:44.01 |
-01:53:31.8 |
HIP 55941 |
20.89 |
| 2026-08-01 00:00 |
11:27:03.81 |
-01:55:23.3 |
HIP 55941 |
18.30 |
| 2026-08-01 12:00 |
11:27:23.69 |
-01:57:15.5 |
HIP 55941 |
17.01 |
| 2026-08-02 00:00 |
11:27:43.64 |
-01:59:08.3 |
HIP 55941 |
17.33 |
| 2026-08-02 12:00 |
11:28:03.65 |
-02:01:01.8 |
HIP 55941 |
19.19 |
| 2026-08-03 00:00 |
11:28:23.74 |
-02:02:55.9 |
HIP 55941 |
22.24 |
| 2026-08-03 12:00 |
11:28:43.90 |
-02:04:50.6 |
HIP 55961 |
25.52 |
| 2026-08-04 00:00 |
11:29:04.13 |
-02:06:46.0 |
HIP 55961 |
26.30 |
| 2026-08-04 12:00 |
11:29:24.43 |
-02:08:42.0 |
HIP 55961 |
28.12 |
| 2026-08-05 00:00 |
11:29:44.80 |
-02:10:38.6 |
HIP 55961 |
30.80 |
| 2026-08-05 12:00 |
11:30:05.24 |
-02:12:35.8 |
HIP 55961 |
34.16 |
| 2026-08-06 00:00 |
11:30:25.74 |
-02:14:33.7 |
HIP 56263 |
36.27 |
| 2026-08-06 12:00 |
11:30:46.31 |
-02:16:32.2 |
HIP 56263 |
34.83 |
| 2026-08-07 00:00 |
11:31:06.95 |
-02:18:31.2 |
HIP 56263 |
34.23 |
| 2026-08-07 12:00 |
11:31:27.66 |
-02:20:30.9 |
HIP 56263 |
34.52 |
| 2026-08-08 00:00 |
11:31:48.43 |
-02:22:31.2 |
HIP 56263 |
35.69 |
| 2026-08-08 12:00 |
11:32:09.26 |
-02:24:32.1 |
HIP 56187 |
36.75 |
| 2026-08-09 00:00 |
11:32:30.16 |
-02:26:33.6 |
HIP 56482 |
34.41 |
| 2026-08-09 12:00 |
11:32:51.12 |
-02:28:35.7 |
HIP 56482 |
29.07 |
| 2026-08-10 00:00 |
11:33:12.15 |
-02:30:38.4 |
HIP 56482 |
23.83 |
| 2026-08-10 12:00 |
11:33:33.24 |
-02:32:41.6 |
HIP 56482 |
18.82 |
| 2026-08-11 00:00 |
11:33:54.39 |
-02:34:45.5 |
HIP 56482 |
14.27 |
| 2026-08-11 12:00 |
11:34:15.60 |
-02:36:49.9 |
HIP 56482 |
10.84 |
| 2026-08-12 00:00 |
11:34:36.87 |
-02:38:54.9 |
HIP 56482 |
9.81 |
| 2026-08-12 12:00 |
11:34:58.20 |
-02:41:00.4 |
HIP 56482 |
11.85 |
| 2026-08-13 00:00 |
11:35:19.59 |
-02:43:06.5 |
HIP 56482 |
15.83 |
| 2026-08-13 12:00 |
11:35:41.04 |
-02:45:13.2 |
HIP 56482 |
20.67 |
| 2026-08-14 00:00 |
11:36:02.54 |
-02:47:20.4 |
HIP 56689 |
21.64 |
| 2026-08-14 12:00 |
11:36:24.10 |
-02:49:28.2 |
HIP 56689 |
15.88 |
| 2026-08-15 00:00 |
11:36:45.72 |
-02:51:36.5 |
HIP 56689 |
10.14 |
| 2026-08-15 12:00 |
11:37:07.40 |
-02:53:45.3 |
HIP 56689 |
4.55 |
| 2026-08-16 00:00 |
11:37:29.13 |
-02:55:54.7 |
HIP 56689 |
2.54 |
| 2026-08-16 12:00 |
11:37:50.91 |
-02:58:04.5 |
HIP 56689 |
7.79 |
| 2026-08-17 00:00 |
11:38:12.74 |
-03:00:15.0 |
HIP 56689 |
13.56 |
| 2026-08-17 12:00 |
11:38:34.63 |
-03:02:25.9 |
HIP 56689 |
19.40 |
| 2026-08-18 00:00 |
11:38:56.57 |
-03:04:37.3 |
HIP 56932 |
24.85 |
| 2026-08-18 12:00 |
11:39:18.57 |
-03:06:49.3 |
HIP 56932 |
19.16 |
| 2026-08-19 00:00 |
11:39:40.61 |
-03:09:01.7 |
HIP 56932 |
13.65 |