메타데이터
| 항목 |
값 |
| Designation |
377P/Scotti |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2020-07-10T01:54:37.517760Z |
| Orbit solution date (soln_date, UTC) |
2022-07-06T03:13:02Z |
| Obs used |
192 |
| NEO |
- |
| M1 |
12.300 |
| K1 |
6.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2019-03-09T02:38:12.768000Z |
| Discovery magnitude (MPC) |
20.30 G |
| Discovery observatory (MPC) |
J04 · ESA Optical Ground Station, Tenerife |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-07-04.0000000 |
| e |
0.25147638 |
| q (au) |
5.036392 |
| a (au) |
6.728435 |
| i (deg) |
9.016997 |
| Ω (om, deg) |
226.030194 |
| ω (w, deg) |
354.469351 |
| M (ma, deg) |
235.870097 |
밝기
산란 + 전체 선형
$$
M_a = (11.055 + 2.748\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.055 |
| n |
2.748 |
| gf |
0.931 |
| gb |
-0.938 |
| k |
1.000 |
| δ90 |
9.697 |
| 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) |
| 2026-09-25 00:00 |
00:25:15.23 |
+09:34:25.3 |
HIP 1884 |
22.13 |
| 2026-09-25 12:00 |
00:25:04.70 |
+09:33:10.1 |
HIP 1884 |
19.77 |
| 2026-09-26 00:00 |
00:24:54.17 |
+09:31:54.5 |
HIP 1884 |
17.57 |
| 2026-09-26 12:00 |
00:24:43.62 |
+09:30:38.5 |
HIP 1884 |
15.59 |
| 2026-09-27 00:00 |
00:24:33.07 |
+09:29:22.3 |
HIP 1884 |
13.94 |
| 2026-09-27 12:00 |
00:24:22.51 |
+09:28:05.7 |
HIP 1884 |
12.75 |
| 2026-09-28 00:00 |
00:24:11.94 |
+09:26:48.8 |
HIP 1884 |
12.14 |
| 2026-09-28 12:00 |
00:24:01.38 |
+09:25:31.5 |
HIP 1845 |
11.26 |
| 2026-09-29 00:00 |
00:23:50.80 |
+09:24:14.0 |
HIP 1845 |
8.35 |
| 2026-09-29 12:00 |
00:23:40.23 |
+09:22:56.2 |
HIP 1845 |
5.45 |
| 2026-09-30 00:00 |
00:23:29.66 |
+09:21:38.1 |
HIP 1845 |
2.55 |
| 2026-09-30 12:00 |
00:23:19.09 |
+09:20:19.7 |
HIP 1845 |
0.62 |
| 2026-10-01 00:00 |
00:23:08.52 |
+09:19:01.1 |
HIP 1845 |
3.36 |
| 2026-10-01 12:00 |
00:22:57.96 |
+09:17:42.1 |
HIP 1845 |
6.26 |
| 2026-10-02 00:00 |
00:22:47.40 |
+09:16:23.0 |
HIP 1845 |
9.18 |
| 2026-10-02 12:00 |
00:22:36.85 |
+09:15:03.6 |
HIP 1845 |
12.09 |
| 2026-10-03 00:00 |
00:22:26.31 |
+09:13:44.0 |
HIP 1845 |
15.01 |
| 2026-10-03 12:00 |
00:22:15.78 |
+09:12:24.1 |
HIP 1845 |
17.93 |
| 2026-10-04 00:00 |
00:22:05.26 |
+09:11:04.1 |
HIP 1845 |
20.85 |
| 2026-10-04 12:00 |
00:21:54.76 |
+09:09:43.9 |
HIP 1845 |
23.77 |
| 2026-10-05 00:00 |
00:21:44.27 |
+09:08:23.4 |
HIP 1845 |
26.68 |
| 2026-10-05 12:00 |
00:21:33.79 |
+09:07:02.8 |
HIP 1845 |
29.59 |
| 2026-10-06 00:00 |
00:21:23.34 |
+09:05:42.0 |
HIP 1554 |
30.02 |
| 2026-10-06 12:00 |
00:21:12.90 |
+09:04:21.1 |
HIP 1554 |
27.34 |
| 2026-10-07 00:00 |
00:21:02.49 |
+09:03:00.0 |
HIP 1554 |
24.72 |
| 2026-10-07 12:00 |
00:20:52.10 |
+09:01:38.8 |
HIP 1554 |
22.18 |
| 2026-10-08 00:00 |
00:20:41.73 |
+09:00:17.5 |
HIP 1554 |
19.74 |
| 2026-10-08 12:00 |
00:20:31.39 |
+08:58:56.1 |
HIP 1554 |
17.44 |
| 2026-10-09 00:00 |
00:20:21.07 |
+08:57:34.5 |
HIP 1554 |
15.36 |
| 2026-10-09 12:00 |
00:20:10.79 |
+08:56:12.9 |
HIP 1554 |
13.58 |
| 2026-10-10 00:00 |
00:20:00.53 |
+08:54:51.2 |
HIP 1554 |
12.23 |
| 2026-10-10 12:00 |
00:19:50.31 |
+08:53:29.4 |
HIP 1554 |
11.47 |
| 2026-10-11 00:00 |
00:19:40.12 |
+08:52:07.6 |
HIP 1554 |
11.40 |
| 2026-10-11 12:00 |
00:19:29.97 |
+08:50:45.7 |
HIP 1554 |
12.04 |
| 2026-10-12 00:00 |
00:19:19.85 |
+08:49:23.8 |
HIP 1554 |
13.27 |
| 2026-10-12 12:00 |
00:19:09.77 |
+08:48:01.9 |
HIP 1554 |
14.95 |
| 2026-10-13 00:00 |
00:18:59.73 |
+08:46:40.0 |
HIP 1554 |
16.93 |
| 2026-10-13 12:00 |
00:18:49.73 |
+08:45:18.0 |
HIP 1554 |
19.13 |
| 2026-10-14 00:00 |
00:18:39.78 |
+08:43:56.1 |
HIP 1392 |
20.51 |
| 2026-10-14 12:00 |
00:18:29.86 |
+08:42:34.2 |
HIP 1392 |
19.00 |
| 2026-10-15 00:00 |
00:18:20.00 |
+08:41:12.3 |
HIP 1392 |
17.81 |
| 2026-10-15 12:00 |
00:18:10.18 |
+08:39:50.5 |
HIP 1392 |
17.02 |
| 2026-10-16 00:00 |
00:18:00.41 |
+08:38:28.7 |
HIP 1392 |
16.66 |