메타데이터
| 항목 |
값 |
| Designation |
C/1975 T1 (Mori-Sato-Fujikawa) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1975-12-25T21:03:54.645120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:24Z |
| Obs used |
193 |
| NEO |
- |
| M1 |
6.300 |
| K1 |
6.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1975-12-18.0000000 |
| e |
0.99745745 |
| q (au) |
1.603934 |
| a (au) |
630.836848 |
| i (deg) |
91.607721 |
| Ω (om, deg) |
278.678467 |
| ω (w, deg) |
246.241227 |
| M (ma, deg) |
359.999510 |
밝기
산란 + 전체 선형
$$
M_a = (4.062 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
4.062 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.978 |
| 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) |
| 2026-09-20 00:00 |
18:16:20.11 |
+26:33:24.7 |
HIP 89656 |
21.14 |
| 2026-09-20 12:00 |
18:16:19.92 |
+26:33:07.2 |
HIP 89656 |
21.28 |
| 2026-09-21 00:00 |
18:16:19.76 |
+26:32:49.6 |
HIP 89656 |
21.41 |
| 2026-09-21 12:00 |
18:16:19.60 |
+26:32:32.1 |
HIP 89656 |
21.55 |
| 2026-09-22 00:00 |
18:16:19.47 |
+26:32:14.5 |
HIP 89656 |
21.68 |
| 2026-09-22 12:00 |
18:16:19.35 |
+26:31:57.0 |
HIP 89656 |
21.82 |
| 2026-09-23 00:00 |
18:16:19.24 |
+26:31:39.4 |
HIP 89656 |
21.95 |
| 2026-09-23 12:00 |
18:16:19.15 |
+26:31:21.8 |
HIP 89656 |
22.09 |
| 2026-09-24 00:00 |
18:16:19.07 |
+26:31:04.2 |
HIP 89656 |
22.23 |
| 2026-09-24 12:00 |
18:16:19.01 |
+26:30:46.7 |
HIP 89656 |
22.36 |
| 2026-09-25 00:00 |
18:16:18.96 |
+26:30:29.1 |
HIP 89656 |
22.50 |
| 2026-09-25 12:00 |
18:16:18.93 |
+26:30:11.5 |
HIP 89656 |
22.63 |
| 2026-09-26 00:00 |
18:16:18.92 |
+26:29:53.9 |
HIP 89656 |
22.77 |
| 2026-09-26 12:00 |
18:16:18.92 |
+26:29:36.3 |
HIP 89656 |
22.90 |
| 2026-09-27 00:00 |
18:16:18.93 |
+26:29:18.8 |
HIP 89656 |
23.04 |
| 2026-09-27 12:00 |
18:16:18.96 |
+26:29:01.2 |
HIP 89656 |
23.17 |
| 2026-09-28 00:00 |
18:16:19.00 |
+26:28:43.7 |
HIP 89656 |
23.31 |
| 2026-09-28 12:00 |
18:16:19.06 |
+26:28:26.1 |
HIP 89656 |
23.44 |
| 2026-09-29 00:00 |
18:16:19.14 |
+26:28:08.6 |
HIP 89656 |
23.58 |
| 2026-09-29 12:00 |
18:16:19.23 |
+26:27:51.1 |
HIP 89656 |
23.71 |
| 2026-09-30 00:00 |
18:16:19.33 |
+26:27:33.6 |
HIP 89656 |
23.85 |
| 2026-09-30 12:00 |
18:16:19.45 |
+26:27:16.1 |
HIP 89656 |
23.98 |
| 2026-10-01 00:00 |
18:16:19.59 |
+26:26:58.6 |
HIP 89656 |
24.12 |
| 2026-10-01 12:00 |
18:16:19.74 |
+26:26:41.1 |
HIP 89656 |
24.25 |
| 2026-10-02 00:00 |
18:16:19.90 |
+26:26:23.7 |
HIP 89656 |
24.39 |
| 2026-10-02 12:00 |
18:16:20.08 |
+26:26:06.2 |
HIP 89656 |
24.52 |
| 2026-10-03 00:00 |
18:16:20.27 |
+26:25:48.8 |
HIP 89656 |
24.65 |
| 2026-10-03 12:00 |
18:16:20.48 |
+26:25:31.4 |
HIP 89656 |
24.79 |
| 2026-10-04 00:00 |
18:16:20.71 |
+26:25:14.1 |
HIP 89656 |
24.92 |
| 2026-10-04 12:00 |
18:16:20.95 |
+26:24:56.7 |
HIP 89633 |
24.82 |
| 2026-10-05 00:00 |
18:16:21.20 |
+26:24:39.4 |
HIP 89633 |
24.56 |
| 2026-10-05 12:00 |
18:16:21.48 |
+26:24:22.1 |
HIP 89633 |
24.30 |
| 2026-10-06 00:00 |
18:16:21.76 |
+26:24:04.8 |
HIP 89633 |
24.04 |
| 2026-10-06 12:00 |
18:16:22.06 |
+26:23:47.6 |
HIP 89633 |
23.78 |
| 2026-10-07 00:00 |
18:16:22.38 |
+26:23:30.4 |
HIP 89633 |
23.51 |
| 2026-10-07 12:00 |
18:16:22.71 |
+26:23:13.2 |
HIP 89633 |
23.25 |
| 2026-10-08 00:00 |
18:16:23.05 |
+26:22:56.1 |
HIP 89633 |
22.98 |
| 2026-10-08 12:00 |
18:16:23.41 |
+26:22:39.0 |
HIP 89633 |
22.72 |
| 2026-10-09 00:00 |
18:16:23.79 |
+26:22:21.9 |
HIP 89633 |
22.45 |
| 2026-10-09 12:00 |
18:16:24.18 |
+26:22:04.9 |
HIP 89633 |
22.18 |
| 2026-10-10 00:00 |
18:16:24.58 |
+26:21:47.9 |
HIP 89633 |
21.91 |
| 2026-10-10 12:00 |
18:16:25.00 |
+26:21:31.0 |
HIP 89633 |
21.64 |
| 2026-10-11 00:00 |
18:16:25.43 |
+26:21:14.1 |
HIP 89633 |
21.37 |