메타데이터
| 항목 |
값 |
| Designation |
C/1951 P1 (Wilson-Harrington) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1952-01-12T22:44:16.137600Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:09Z |
| Obs used |
23 |
| NEO |
- |
| M1 |
9.700 |
| K1 |
14.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1951-09-13.0000000 |
| e |
0.99977514 |
| q (au) |
0.740399 |
| a (au) |
3292.688104 |
| i (deg) |
152.531339 |
| Ω (om, deg) |
76.894641 |
| ω (w, deg) |
269.622126 |
| M (ma, deg) |
359.999364 |
밝기
산란 + 전체 선형
$$
M_a = (8.987 + 3.458\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.987 |
| n |
3.458 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.876 |
| δ90 |
1.000 |
| 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 |
23:09:52.03 |
+23:42:22.9 |
HIP 114350 |
8.21 |
| 2026-03-26 12:00 |
23:09:53.16 |
+23:42:31.3 |
HIP 114350 |
8.46 |
| 2026-03-27 00:00 |
23:09:54.29 |
+23:42:39.8 |
HIP 114350 |
8.72 |
| 2026-03-27 12:00 |
23:09:55.41 |
+23:42:48.3 |
HIP 114350 |
8.98 |
| 2026-03-28 00:00 |
23:09:56.53 |
+23:42:56.9 |
HIP 114350 |
9.24 |
| 2026-03-28 12:00 |
23:09:57.65 |
+23:43:05.6 |
HIP 114350 |
9.50 |
| 2026-03-29 00:00 |
23:09:58.77 |
+23:43:14.2 |
HIP 114350 |
9.77 |
| 2026-03-29 12:00 |
23:09:59.88 |
+23:43:23.0 |
HIP 114350 |
10.04 |
| 2026-03-30 00:00 |
23:10:00.98 |
+23:43:31.7 |
HIP 114350 |
10.31 |
| 2026-03-30 12:00 |
23:10:02.08 |
+23:43:40.6 |
HIP 114350 |
10.58 |
| 2026-03-31 00:00 |
23:10:03.18 |
+23:43:49.5 |
HIP 114350 |
10.85 |
| 2026-03-31 12:00 |
23:10:04.27 |
+23:43:58.4 |
HIP 114350 |
11.12 |
| 2026-04-01 00:00 |
23:10:05.36 |
+23:44:07.3 |
HIP 114350 |
11.39 |
| 2026-04-01 12:00 |
23:10:06.45 |
+23:44:16.4 |
HIP 114350 |
11.67 |
| 2026-04-02 00:00 |
23:10:07.53 |
+23:44:25.4 |
HIP 114350 |
11.94 |
| 2026-04-02 12:00 |
23:10:08.61 |
+23:44:34.5 |
HIP 114350 |
12.22 |
| 2026-04-03 00:00 |
23:10:09.68 |
+23:44:43.7 |
HIP 114350 |
12.50 |
| 2026-04-03 12:00 |
23:10:10.75 |
+23:44:52.9 |
HIP 114350 |
12.77 |
| 2026-04-04 00:00 |
23:10:11.81 |
+23:45:02.1 |
HIP 114350 |
13.05 |
| 2026-04-04 12:00 |
23:10:12.87 |
+23:45:11.4 |
HIP 114350 |
13.33 |
| 2026-04-05 00:00 |
23:10:13.92 |
+23:45:20.7 |
HIP 114350 |
13.60 |
| 2026-04-05 12:00 |
23:10:14.97 |
+23:45:30.1 |
HIP 114350 |
13.88 |
| 2026-04-06 00:00 |
23:10:16.02 |
+23:45:39.5 |
HIP 114350 |
14.16 |
| 2026-04-06 12:00 |
23:10:17.06 |
+23:45:48.9 |
HIP 114350 |
14.44 |
| 2026-04-07 00:00 |
23:10:18.09 |
+23:45:58.4 |
HIP 114350 |
14.71 |
| 2026-04-07 12:00 |
23:10:19.12 |
+23:46:07.9 |
HIP 114350 |
14.99 |
| 2026-04-08 00:00 |
23:10:20.14 |
+23:46:17.4 |
HIP 114350 |
15.27 |
| 2026-04-08 12:00 |
23:10:21.16 |
+23:46:27.0 |
HIP 114350 |
15.55 |
| 2026-04-09 00:00 |
23:10:22.17 |
+23:46:36.7 |
HIP 114350 |
15.82 |
| 2026-04-09 12:00 |
23:10:23.18 |
+23:46:46.3 |
HIP 114350 |
16.10 |
| 2026-04-10 00:00 |
23:10:24.18 |
+23:46:56.0 |
HIP 114350 |
16.38 |
| 2026-04-10 12:00 |
23:10:25.18 |
+23:47:05.8 |
HIP 114350 |
16.65 |
| 2026-04-11 00:00 |
23:10:26.17 |
+23:47:15.5 |
HIP 114350 |
16.93 |
| 2026-04-11 12:00 |
23:10:27.16 |
+23:47:25.3 |
HIP 114350 |
17.20 |
| 2026-04-12 00:00 |
23:10:28.14 |
+23:47:35.2 |
HIP 114350 |
17.48 |
| 2026-04-12 12:00 |
23:10:29.11 |
+23:47:45.0 |
HIP 114350 |
17.75 |
| 2026-04-13 00:00 |
23:10:30.08 |
+23:47:54.9 |
HIP 114350 |
18.02 |
| 2026-04-13 12:00 |
23:10:31.04 |
+23:48:04.8 |
HIP 114350 |
18.30 |
| 2026-04-14 00:00 |
23:10:32.00 |
+23:48:14.8 |
HIP 114350 |
18.57 |
| 2026-04-14 12:00 |
23:10:32.95 |
+23:48:24.8 |
HIP 114350 |
18.84 |
| 2026-04-15 00:00 |
23:10:33.89 |
+23:48:34.8 |
HIP 114350 |
19.11 |
| 2026-04-15 12:00 |
23:10:34.83 |
+23:48:44.8 |
HIP 114350 |
19.38 |
| 2026-04-16 00:00 |
23:10:35.76 |
+23:48:54.9 |
HIP 114350 |
19.65 |