메타데이터
| 항목 |
값 |
| Designation |
C/1966 P1 (Kilston) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1966-10-28T01:52:48.731520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:17Z |
| Obs used |
208 |
| NEO |
- |
| M1 |
5.000 |
| K1 |
8.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1966-09-09.0000000 |
| e |
0.99948025 |
| q (au) |
2.384769 |
| a (au) |
4588.291435 |
| i (deg) |
40.264536 |
| Ω (om, deg) |
156.051601 |
| ω (w, deg) |
154.485693 |
| M (ma, deg) |
359.999844 |
밝기
산란 + 전체 선형
$$
M_a = (5.337 + 3.100\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.337 |
| n |
3.100 |
| gf |
0.885 |
| gb |
-0.500 |
| k |
0.926 |
| 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) |
| 2026-07-29 00:00 |
07:42:45.68 |
-05:52:50.5 |
HIP 37661 |
28.99 |
| 2026-07-29 12:00 |
07:42:47.05 |
-05:52:55.5 |
HIP 37661 |
28.76 |
| 2026-07-30 00:00 |
07:42:48.42 |
-05:53:00.5 |
HIP 37661 |
28.54 |
| 2026-07-30 12:00 |
07:42:49.79 |
-05:53:05.7 |
HIP 37661 |
28.31 |
| 2026-07-31 00:00 |
07:42:51.16 |
-05:53:10.8 |
HIP 37661 |
28.09 |
| 2026-07-31 12:00 |
07:42:52.52 |
-05:53:16.1 |
HIP 37661 |
27.86 |
| 2026-08-01 00:00 |
07:42:53.88 |
-05:53:21.4 |
HIP 37661 |
27.64 |
| 2026-08-01 12:00 |
07:42:55.24 |
-05:53:26.8 |
HIP 37661 |
27.42 |
| 2026-08-02 00:00 |
07:42:56.59 |
-05:53:32.3 |
HIP 37661 |
27.21 |
| 2026-08-02 12:00 |
07:42:57.94 |
-05:53:37.8 |
HIP 37661 |
26.99 |
| 2026-08-03 00:00 |
07:42:59.29 |
-05:53:43.4 |
HIP 37661 |
26.78 |
| 2026-08-03 12:00 |
07:43:00.64 |
-05:53:49.1 |
HIP 37661 |
26.57 |
| 2026-08-04 00:00 |
07:43:01.98 |
-05:53:54.9 |
HIP 37661 |
26.36 |
| 2026-08-04 12:00 |
07:43:03.32 |
-05:54:00.7 |
HIP 37661 |
26.15 |
| 2026-08-05 00:00 |
07:43:04.65 |
-05:54:06.5 |
HIP 37661 |
25.95 |
| 2026-08-05 12:00 |
07:43:05.98 |
-05:54:12.5 |
HIP 37661 |
25.75 |
| 2026-08-06 00:00 |
07:43:07.31 |
-05:54:18.5 |
HIP 37661 |
25.55 |
| 2026-08-06 12:00 |
07:43:08.64 |
-05:54:24.6 |
HIP 37661 |
25.35 |
| 2026-08-07 00:00 |
07:43:09.96 |
-05:54:30.8 |
HIP 37661 |
25.16 |
| 2026-08-07 12:00 |
07:43:11.27 |
-05:54:37.0 |
HIP 37661 |
24.96 |
| 2026-08-08 00:00 |
07:43:12.58 |
-05:54:43.3 |
HIP 37661 |
24.77 |
| 2026-08-08 12:00 |
07:43:13.89 |
-05:54:49.6 |
HIP 37661 |
24.59 |
| 2026-08-09 00:00 |
07:43:15.20 |
-05:54:56.0 |
HIP 37661 |
24.40 |
| 2026-08-09 12:00 |
07:43:16.50 |
-05:55:02.5 |
HIP 37661 |
24.22 |
| 2026-08-10 00:00 |
07:43:17.79 |
-05:55:09.1 |
HIP 37661 |
24.04 |
| 2026-08-10 12:00 |
07:43:19.08 |
-05:55:15.7 |
HIP 37661 |
23.86 |
| 2026-08-11 00:00 |
07:43:20.37 |
-05:55:22.4 |
HIP 37661 |
23.69 |
| 2026-08-11 12:00 |
07:43:21.65 |
-05:55:29.1 |
HIP 37661 |
23.52 |
| 2026-08-12 00:00 |
07:43:22.93 |
-05:55:35.9 |
HIP 37661 |
23.35 |
| 2026-08-12 12:00 |
07:43:24.20 |
-05:55:42.8 |
HIP 37661 |
23.18 |
| 2026-08-13 00:00 |
07:43:25.46 |
-05:55:49.7 |
HIP 37661 |
23.02 |
| 2026-08-13 12:00 |
07:43:26.72 |
-05:55:56.7 |
HIP 37661 |
22.86 |
| 2026-08-14 00:00 |
07:43:27.98 |
-05:56:03.7 |
HIP 37661 |
22.70 |
| 2026-08-14 12:00 |
07:43:29.23 |
-05:56:10.8 |
HIP 37661 |
22.55 |
| 2026-08-15 00:00 |
07:43:30.48 |
-05:56:18.0 |
HIP 37661 |
22.39 |
| 2026-08-15 12:00 |
07:43:31.72 |
-05:56:25.2 |
HIP 37661 |
22.25 |
| 2026-08-16 00:00 |
07:43:32.95 |
-05:56:32.5 |
HIP 37661 |
22.10 |
| 2026-08-16 12:00 |
07:43:34.18 |
-05:56:39.8 |
HIP 37661 |
21.96 |
| 2026-08-17 00:00 |
07:43:35.41 |
-05:56:47.2 |
HIP 37661 |
21.82 |
| 2026-08-17 12:00 |
07:43:36.62 |
-05:56:54.7 |
HIP 37661 |
21.68 |
| 2026-08-18 00:00 |
07:43:37.83 |
-05:57:02.2 |
HIP 37661 |
21.55 |
| 2026-08-18 12:00 |
07:43:39.04 |
-05:57:09.8 |
HIP 37661 |
21.42 |
| 2026-08-19 00:00 |
07:43:40.24 |
-05:57:17.4 |
HIP 37661 |
21.30 |