메타데이터
| 항목 |
값 |
| Designation |
C/1983 R1 (Shoemaker) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1983-11-23T19:05:28.720320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:31Z |
| Obs used |
117 |
| NEO |
- |
| M1 |
5.800 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1983-12-05.0000000 |
| e |
1.00019923 |
| q (au) |
3.344912 |
| a (au) |
-16789.101324 |
| i (deg) |
137.597258 |
| Ω (om, deg) |
164.683890 |
| ω (w, deg) |
176.039037 |
| M (ma, deg) |
0.000005 |
밝기
산란 + 전체 선형
$$
M_a = (4.970 + 5.968\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
4.970 |
| n |
5.968 |
| gf |
1.000 |
| gb |
-0.719 |
| k |
0.800 |
| 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) |
| 2026-03-26 00:00 |
11:55:51.10 |
-21:25:27.2 |
HIP 58229 |
10.49 |
| 2026-03-26 12:00 |
11:55:49.25 |
-21:25:15.0 |
HIP 58229 |
10.92 |
| 2026-03-27 00:00 |
11:55:47.40 |
-21:25:02.8 |
HIP 58229 |
11.35 |
| 2026-03-27 12:00 |
11:55:45.55 |
-21:24:50.4 |
HIP 58229 |
11.78 |
| 2026-03-28 00:00 |
11:55:43.71 |
-21:24:38.0 |
HIP 58229 |
12.22 |
| 2026-03-28 12:00 |
11:55:41.87 |
-21:24:25.5 |
HIP 58229 |
12.66 |
| 2026-03-29 00:00 |
11:55:40.03 |
-21:24:13.0 |
HIP 58229 |
13.10 |
| 2026-03-29 12:00 |
11:55:38.20 |
-21:24:00.3 |
HIP 58229 |
13.54 |
| 2026-03-30 00:00 |
11:55:36.36 |
-21:23:47.6 |
HIP 58229 |
13.99 |
| 2026-03-30 12:00 |
11:55:34.53 |
-21:23:34.8 |
HIP 58229 |
14.43 |
| 2026-03-31 00:00 |
11:55:32.71 |
-21:23:22.0 |
HIP 58229 |
14.88 |
| 2026-03-31 12:00 |
11:55:30.88 |
-21:23:09.0 |
HIP 58229 |
15.33 |
| 2026-04-01 00:00 |
11:55:29.06 |
-21:22:56.0 |
HIP 58229 |
15.78 |
| 2026-04-01 12:00 |
11:55:27.25 |
-21:22:43.0 |
HIP 58229 |
16.23 |
| 2026-04-02 00:00 |
11:55:25.44 |
-21:22:29.8 |
HIP 58229 |
16.68 |
| 2026-04-02 12:00 |
11:55:23.63 |
-21:22:16.6 |
HIP 58229 |
17.13 |
| 2026-04-03 00:00 |
11:55:21.82 |
-21:22:03.4 |
HIP 58229 |
17.58 |
| 2026-04-03 12:00 |
11:55:20.02 |
-21:21:50.0 |
HIP 58229 |
18.03 |
| 2026-04-04 00:00 |
11:55:18.22 |
-21:21:36.6 |
HIP 58229 |
18.49 |
| 2026-04-04 12:00 |
11:55:16.43 |
-21:21:23.2 |
HIP 58229 |
18.94 |
| 2026-04-05 00:00 |
11:55:14.64 |
-21:21:09.7 |
HIP 58229 |
19.39 |
| 2026-04-05 12:00 |
11:55:12.86 |
-21:20:56.1 |
HIP 58229 |
19.85 |
| 2026-04-06 00:00 |
11:55:11.08 |
-21:20:42.4 |
HIP 58229 |
20.30 |
| 2026-04-06 12:00 |
11:55:09.30 |
-21:20:28.7 |
HIP 58229 |
20.76 |
| 2026-04-07 00:00 |
11:55:07.53 |
-21:20:15.0 |
HIP 58229 |
21.21 |
| 2026-04-07 12:00 |
11:55:05.77 |
-21:20:01.2 |
HIP 58229 |
21.66 |
| 2026-04-08 00:00 |
11:55:04.01 |
-21:19:47.3 |
HIP 58229 |
22.12 |
| 2026-04-08 12:00 |
11:55:02.26 |
-21:19:33.4 |
HIP 58229 |
22.57 |
| 2026-04-09 00:00 |
11:55:00.51 |
-21:19:19.4 |
HIP 58229 |
23.02 |
| 2026-04-09 12:00 |
11:54:58.76 |
-21:19:05.4 |
HIP 58229 |
23.48 |
| 2026-04-10 00:00 |
11:54:57.03 |
-21:18:51.3 |
HIP 58229 |
23.93 |
| 2026-04-10 12:00 |
11:54:55.29 |
-21:18:37.1 |
HIP 58229 |
24.38 |
| 2026-04-11 00:00 |
11:54:53.57 |
-21:18:23.0 |
HIP 58229 |
24.83 |
| 2026-04-11 12:00 |
11:54:51.85 |
-21:18:08.7 |
HIP 58229 |
25.28 |
| 2026-04-12 00:00 |
11:54:50.14 |
-21:17:54.4 |
HIP 58229 |
25.73 |
| 2026-04-12 12:00 |
11:54:48.43 |
-21:17:40.1 |
HIP 58229 |
26.18 |
| 2026-04-13 00:00 |
11:54:46.73 |
-21:17:25.7 |
HIP 58229 |
26.63 |
| 2026-04-13 12:00 |
11:54:45.03 |
-21:17:11.3 |
HIP 58229 |
27.08 |
| 2026-04-14 00:00 |
11:54:43.35 |
-21:16:56.8 |
HIP 58229 |
27.52 |
| 2026-04-14 12:00 |
11:54:41.66 |
-21:16:42.3 |
HIP 58229 |
27.97 |
| 2026-04-15 00:00 |
11:54:39.99 |
-21:16:27.8 |
HIP 58229 |
28.41 |
| 2026-04-15 12:00 |
11:54:38.32 |
-21:16:13.2 |
HIP 58229 |
28.86 |
| 2026-04-16 00:00 |
11:54:36.66 |
-21:15:58.6 |
HIP 58172 |
29.29 |