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 |
0.994 |
| 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) |
| 2026-05-12 00:00 |
10:58:13.59 |
-00:03:04.9 |
HIP 53532 |
22.65 |
| 2026-05-12 12:00 |
10:58:11.91 |
-00:02:22.9 |
HIP 53532 |
22.85 |
| 2026-05-13 00:00 |
10:58:10.41 |
-00:01:42.0 |
HIP 53532 |
23.08 |
| 2026-05-13 12:00 |
10:58:09.10 |
-00:01:02.2 |
HIP 53532 |
23.36 |
| 2026-05-14 00:00 |
10:58:07.98 |
-00:00:23.5 |
HIP 53532 |
23.67 |
| 2026-05-14 12:00 |
10:58:07.04 |
+00:00:14.1 |
HIP 53532 |
24.02 |
| 2026-05-15 00:00 |
10:58:06.29 |
+00:00:50.6 |
HIP 53532 |
24.39 |
| 2026-05-15 12:00 |
10:58:05.73 |
+00:01:25.9 |
HIP 53532 |
24.78 |
| 2026-05-16 00:00 |
10:58:05.34 |
+00:02:00.2 |
HIP 53532 |
25.19 |
| 2026-05-16 12:00 |
10:58:05.15 |
+00:02:33.3 |
HIP 53532 |
25.62 |
| 2026-05-17 00:00 |
10:58:05.14 |
+00:03:05.3 |
HIP 53532 |
26.06 |
| 2026-05-17 12:00 |
10:58:05.31 |
+00:03:36.1 |
HIP 53532 |
26.52 |
| 2026-05-18 00:00 |
10:58:05.67 |
+00:04:05.8 |
HIP 53532 |
26.98 |
| 2026-05-18 12:00 |
10:58:06.21 |
+00:04:34.4 |
HIP 53532 |
27.46 |
| 2026-05-19 00:00 |
10:58:06.93 |
+00:05:01.9 |
HIP 53532 |
27.94 |
| 2026-05-19 12:00 |
10:58:07.84 |
+00:05:28.2 |
HIP 53532 |
28.44 |
| 2026-05-20 00:00 |
10:58:08.92 |
+00:05:53.4 |
HIP 53532 |
28.94 |
| 2026-05-20 12:00 |
10:58:10.19 |
+00:06:17.5 |
HIP 53532 |
29.44 |
| 2026-05-21 00:00 |
10:58:11.65 |
+00:06:40.4 |
HIP 53532 |
29.96 |
| 2026-05-21 12:00 |
10:58:13.28 |
+00:07:02.2 |
HIP 53532 |
30.49 |
| 2026-05-22 00:00 |
10:58:15.09 |
+00:07:22.9 |
HIP 53532 |
31.02 |
| 2026-05-22 12:00 |
10:58:17.08 |
+00:07:42.4 |
HIP 53532 |
31.56 |
| 2026-05-23 00:00 |
10:58:19.25 |
+00:08:00.8 |
HIP 53532 |
32.12 |
| 2026-05-23 12:00 |
10:58:21.60 |
+00:08:18.1 |
HIP 53532 |
32.68 |
| 2026-05-24 00:00 |
10:58:24.12 |
+00:08:34.2 |
HIP 53532 |
33.26 |
| 2026-05-24 12:00 |
10:58:26.83 |
+00:08:49.3 |
HIP 53532 |
33.86 |
| 2026-05-25 00:00 |
10:58:29.70 |
+00:09:03.2 |
HIP 53532 |
34.47 |
| 2026-05-25 12:00 |
10:58:32.76 |
+00:09:15.9 |
HIP 53812 |
33.76 |
| 2026-05-26 00:00 |
10:58:35.99 |
+00:09:27.6 |
HIP 53812 |
32.94 |
| 2026-05-26 12:00 |
10:58:39.39 |
+00:09:38.1 |
HIP 53812 |
32.09 |
| 2026-05-27 00:00 |
10:58:42.96 |
+00:09:47.5 |
HIP 53812 |
31.21 |
| 2026-05-27 12:00 |
10:58:46.71 |
+00:09:55.8 |
HIP 53812 |
30.31 |
| 2026-05-28 00:00 |
10:58:50.63 |
+00:10:03.0 |
HIP 53812 |
29.37 |
| 2026-05-28 12:00 |
10:58:54.72 |
+00:10:09.1 |
HIP 53812 |
28.40 |
| 2026-05-29 00:00 |
10:58:58.99 |
+00:10:14.1 |
HIP 53812 |
27.41 |
| 2026-05-29 12:00 |
10:59:03.42 |
+00:10:17.9 |
HIP 53812 |
26.40 |
| 2026-05-30 00:00 |
10:59:08.02 |
+00:10:20.6 |
HIP 53812 |
25.37 |
| 2026-05-30 12:00 |
10:59:12.79 |
+00:10:22.3 |
HIP 53812 |
24.32 |
| 2026-05-31 00:00 |
10:59:17.73 |
+00:10:22.8 |
HIP 53812 |
23.26 |
| 2026-05-31 12:00 |
10:59:22.83 |
+00:10:22.2 |
HIP 53812 |
22.20 |
| 2026-06-01 00:00 |
10:59:28.10 |
+00:10:20.6 |
HIP 53812 |
21.13 |
| 2026-06-01 12:00 |
10:59:33.54 |
+00:10:17.8 |
HIP 53812 |
20.08 |
| 2026-06-02 00:00 |
10:59:39.14 |
+00:10:13.9 |
HIP 53812 |
19.04 |