메타데이터
| 항목 |
값 |
| Designation |
C/1986 N1 (Churyumov-Solodovnikov) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1986-05-06T10:49:52.250880Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:33Z |
| Obs used |
86 |
| NEO |
- |
| M1 |
8.300 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1987-01-14.0000000 |
| e |
0.99920711 |
| q (au) |
2.642130 |
| a (au) |
3332.287983 |
| i (deg) |
114.918049 |
| Ω (om, deg) |
134.617578 |
| ω (w, deg) |
157.743449 |
| M (ma, deg) |
0.001294 |
밝기
산란 + 전체 선형
$$
M_a = (9.578 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.578 |
| n |
2.000 |
| gf |
0.837 |
| gb |
-0.865 |
| k |
0.999 |
| δ90 |
4.810 |
| 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 |
09:33:27.50 |
-28:09:51.2 |
HIP 46777 |
19.78 |
| 2026-07-29 12:00 |
09:33:29.39 |
-28:09:51.7 |
HIP 46777 |
20.19 |
| 2026-07-30 00:00 |
09:33:31.28 |
-28:09:52.4 |
HIP 46777 |
20.59 |
| 2026-07-30 12:00 |
09:33:33.17 |
-28:09:53.2 |
HIP 46777 |
21.00 |
| 2026-07-31 00:00 |
09:33:35.07 |
-28:09:54.2 |
HIP 46777 |
21.41 |
| 2026-07-31 12:00 |
09:33:36.97 |
-28:09:55.4 |
HIP 46777 |
21.82 |
| 2026-08-01 00:00 |
09:33:38.87 |
-28:09:56.8 |
HIP 46777 |
22.23 |
| 2026-08-01 12:00 |
09:33:40.78 |
-28:09:58.3 |
HIP 46777 |
22.64 |
| 2026-08-02 00:00 |
09:33:42.69 |
-28:10:00.0 |
HIP 46777 |
23.05 |
| 2026-08-02 12:00 |
09:33:44.61 |
-28:10:01.7 |
HIP 46777 |
23.46 |
| 2026-08-03 00:00 |
09:33:46.52 |
-28:10:03.7 |
HIP 46777 |
23.88 |
| 2026-08-03 12:00 |
09:33:48.44 |
-28:10:05.9 |
HIP 46777 |
24.29 |
| 2026-08-04 00:00 |
09:33:50.36 |
-28:10:08.2 |
HIP 46777 |
24.70 |
| 2026-08-04 12:00 |
09:33:52.29 |
-28:10:10.7 |
HIP 46777 |
25.12 |
| 2026-08-05 00:00 |
09:33:54.22 |
-28:10:13.3 |
HIP 46777 |
25.53 |
| 2026-08-05 12:00 |
09:33:56.15 |
-28:10:16.1 |
HIP 46777 |
25.95 |
| 2026-08-06 00:00 |
09:33:58.08 |
-28:10:19.0 |
HIP 46777 |
26.37 |
| 2026-08-06 12:00 |
09:34:00.02 |
-28:10:22.2 |
HIP 46777 |
26.78 |
| 2026-08-07 00:00 |
09:34:01.95 |
-28:10:25.4 |
HIP 46777 |
27.20 |
| 2026-08-07 12:00 |
09:34:03.89 |
-28:10:28.9 |
HIP 46777 |
27.62 |
| 2026-08-08 00:00 |
09:34:05.83 |
-28:10:32.5 |
HIP 46777 |
28.04 |
| 2026-08-08 12:00 |
09:34:07.77 |
-28:10:36.2 |
HIP 46777 |
28.45 |
| 2026-08-09 00:00 |
09:34:09.72 |
-28:10:40.2 |
HIP 46777 |
28.87 |
| 2026-08-09 12:00 |
09:34:11.66 |
-28:10:44.3 |
HIP 46777 |
29.29 |
| 2026-08-10 00:00 |
09:34:13.61 |
-28:10:48.5 |
HIP 46777 |
29.71 |
| 2026-08-10 12:00 |
09:34:15.56 |
-28:10:52.9 |
HIP 46777 |
30.13 |
| 2026-08-11 00:00 |
09:34:17.51 |
-28:10:57.5 |
HIP 46777 |
30.55 |
| 2026-08-11 12:00 |
09:34:19.46 |
-28:11:02.2 |
HIP 46777 |
30.98 |
| 2026-08-12 00:00 |
09:34:21.40 |
-28:11:07.1 |
HIP 46777 |
31.40 |
| 2026-08-12 12:00 |
09:34:23.36 |
-28:11:12.1 |
HIP 47155 |
31.37 |
| 2026-08-13 00:00 |
09:34:25.31 |
-28:11:17.3 |
HIP 47155 |
31.02 |
| 2026-08-13 12:00 |
09:34:27.26 |
-28:11:22.6 |
HIP 47155 |
30.67 |
| 2026-08-14 00:00 |
09:34:29.21 |
-28:11:28.1 |
HIP 47155 |
30.33 |
| 2026-08-14 12:00 |
09:34:31.16 |
-28:11:33.8 |
HIP 47155 |
29.99 |
| 2026-08-15 00:00 |
09:34:33.11 |
-28:11:39.6 |
HIP 47155 |
29.65 |
| 2026-08-15 12:00 |
09:34:35.06 |
-28:11:45.6 |
HIP 47155 |
29.32 |
| 2026-08-16 00:00 |
09:34:37.01 |
-28:11:51.7 |
HIP 47155 |
28.99 |
| 2026-08-16 12:00 |
09:34:38.96 |
-28:11:58.0 |
HIP 47155 |
28.67 |
| 2026-08-17 00:00 |
09:34:40.91 |
-28:12:04.5 |
HIP 47155 |
28.35 |
| 2026-08-17 12:00 |
09:34:42.85 |
-28:12:11.0 |
HIP 47155 |
28.04 |
| 2026-08-18 00:00 |
09:34:44.80 |
-28:12:17.8 |
HIP 47155 |
27.73 |
| 2026-08-18 12:00 |
09:34:46.75 |
-28:12:24.7 |
HIP 47155 |
27.43 |
| 2026-08-19 00:00 |
09:34:48.69 |
-28:12:31.7 |
HIP 47155 |
27.13 |