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
$$
M_a = (9.540 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.540 |
| n |
2.000 |
| gf |
0.835 |
| gb |
-0.865 |
| k |
0.999 |
| δ90 |
5.854 |
| 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 |
09:31:48.34 |
-29:11:57.3 |
HIP 46646 |
29.93 |
| 2026-03-26 12:00 |
09:31:46.83 |
-29:11:37.8 |
HIP 46646 |
29.49 |
| 2026-03-27 00:00 |
09:31:45.34 |
-29:11:18.3 |
HIP 46646 |
29.04 |
| 2026-03-27 12:00 |
09:31:43.87 |
-29:10:58.6 |
HIP 46646 |
28.60 |
| 2026-03-28 00:00 |
09:31:42.40 |
-29:10:38.9 |
HIP 46646 |
28.16 |
| 2026-03-28 12:00 |
09:31:40.95 |
-29:10:19.1 |
HIP 46646 |
27.72 |
| 2026-03-29 00:00 |
09:31:39.51 |
-29:09:59.2 |
HIP 46646 |
27.28 |
| 2026-03-29 12:00 |
09:31:38.09 |
-29:09:39.3 |
HIP 46646 |
26.84 |
| 2026-03-30 00:00 |
09:31:36.68 |
-29:09:19.2 |
HIP 46646 |
26.40 |
| 2026-03-30 12:00 |
09:31:35.28 |
-29:08:59.2 |
HIP 46646 |
25.96 |
| 2026-03-31 00:00 |
09:31:33.90 |
-29:08:39.0 |
HIP 46646 |
25.52 |
| 2026-03-31 12:00 |
09:31:32.53 |
-29:08:18.8 |
HIP 46646 |
25.08 |
| 2026-04-01 00:00 |
09:31:31.17 |
-29:07:58.5 |
HIP 46646 |
24.65 |
| 2026-04-01 12:00 |
09:31:29.83 |
-29:07:38.2 |
HIP 46646 |
24.21 |
| 2026-04-02 00:00 |
09:31:28.51 |
-29:07:17.8 |
HIP 46646 |
23.78 |
| 2026-04-02 12:00 |
09:31:27.19 |
-29:06:57.3 |
HIP 46646 |
23.35 |
| 2026-04-03 00:00 |
09:31:25.89 |
-29:06:36.8 |
HIP 46646 |
22.92 |
| 2026-04-03 12:00 |
09:31:24.61 |
-29:06:16.2 |
HIP 46646 |
22.49 |
| 2026-04-04 00:00 |
09:31:23.34 |
-29:05:55.6 |
HIP 46646 |
22.06 |
| 2026-04-04 12:00 |
09:31:22.08 |
-29:05:34.9 |
HIP 46646 |
21.63 |
| 2026-04-05 00:00 |
09:31:20.84 |
-29:05:14.2 |
HIP 46646 |
21.20 |
| 2026-04-05 12:00 |
09:31:19.62 |
-29:04:53.4 |
HIP 46646 |
20.77 |
| 2026-04-06 00:00 |
09:31:18.41 |
-29:04:32.6 |
HIP 46646 |
20.35 |
| 2026-04-06 12:00 |
09:31:17.21 |
-29:04:11.7 |
HIP 46646 |
19.92 |
| 2026-04-07 00:00 |
09:31:16.03 |
-29:03:50.8 |
HIP 46646 |
19.50 |
| 2026-04-07 12:00 |
09:31:14.86 |
-29:03:29.8 |
HIP 46646 |
19.08 |
| 2026-04-08 00:00 |
09:31:13.71 |
-29:03:08.8 |
HIP 46646 |
18.66 |
| 2026-04-08 12:00 |
09:31:12.57 |
-29:02:47.8 |
HIP 46646 |
18.24 |
| 2026-04-09 00:00 |
09:31:11.45 |
-29:02:26.7 |
HIP 46646 |
17.82 |
| 2026-04-09 12:00 |
09:31:10.35 |
-29:02:05.5 |
HIP 46646 |
17.40 |
| 2026-04-10 00:00 |
09:31:09.26 |
-29:01:44.4 |
HIP 46646 |
16.98 |
| 2026-04-10 12:00 |
09:31:08.18 |
-29:01:23.2 |
HIP 46646 |
16.57 |
| 2026-04-11 00:00 |
09:31:07.12 |
-29:01:01.9 |
HIP 46646 |
16.15 |
| 2026-04-11 12:00 |
09:31:06.08 |
-29:00:40.6 |
HIP 46646 |
15.74 |
| 2026-04-12 00:00 |
09:31:05.05 |
-29:00:19.3 |
HIP 46646 |
15.33 |
| 2026-04-12 12:00 |
09:31:04.04 |
-28:59:58.0 |
HIP 46646 |
14.92 |
| 2026-04-13 00:00 |
09:31:03.04 |
-28:59:36.7 |
HIP 46646 |
14.51 |
| 2026-04-13 12:00 |
09:31:02.06 |
-28:59:15.3 |
HIP 46646 |
14.10 |
| 2026-04-14 00:00 |
09:31:01.10 |
-28:58:53.9 |
HIP 46646 |
13.69 |
| 2026-04-14 12:00 |
09:31:00.15 |
-28:58:32.4 |
HIP 46646 |
13.29 |
| 2026-04-15 00:00 |
09:30:59.22 |
-28:58:11.0 |
HIP 46646 |
12.88 |
| 2026-04-15 12:00 |
09:30:58.30 |
-28:57:49.5 |
HIP 46646 |
12.48 |
| 2026-04-16 00:00 |
09:30:57.40 |
-28:57:28.0 |
HIP 46646 |
12.08 |