메타데이터
| 항목 |
값 |
| Designation |
C/1975 N1 (Kobayashi-Berger-Milon) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1975-09-05T08:02:10.029120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:24Z |
| Obs used |
390 |
| NEO |
- |
| M1 |
7.900 |
| K1 |
11.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1975-08-09.0000000 |
| e |
1.00009176 |
| q (au) |
0.425564 |
| a (au) |
-4637.833606 |
| i (deg) |
80.781301 |
| Ω (om, deg) |
296.352017 |
| ω (w, deg) |
116.969468 |
| M (ma, deg) |
-0.000085 |
밝기
산란 + 전체 선형
$$
M_a = (7.113 + 3.526\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.113 |
| n |
3.526 |
| gf |
1.000 |
| gb |
-0.500 |
| k |
0.975 |
| δ90 |
8.837 |
| 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 |
04:43:31.11 |
-86:51:31.1 |
HIP 20198 |
19.74 |
| 2026-03-26 12:00 |
04:43:41.41 |
-86:51:11.3 |
HIP 20198 |
19.96 |
| 2026-03-27 00:00 |
04:43:51.89 |
-86:50:51.5 |
HIP 20198 |
20.19 |
| 2026-03-27 12:00 |
04:44:02.56 |
-86:50:31.9 |
HIP 20198 |
20.43 |
| 2026-03-28 00:00 |
04:44:13.41 |
-86:50:12.3 |
HIP 20198 |
20.67 |
| 2026-03-28 12:00 |
04:44:24.44 |
-86:49:52.8 |
HIP 20198 |
20.92 |
| 2026-03-29 00:00 |
04:44:35.65 |
-86:49:33.3 |
HIP 20198 |
21.17 |
| 2026-03-29 12:00 |
04:44:47.04 |
-86:49:14.0 |
HIP 20198 |
21.43 |
| 2026-03-30 00:00 |
04:44:58.60 |
-86:48:54.7 |
HIP 20198 |
21.70 |
| 2026-03-30 12:00 |
04:45:10.34 |
-86:48:35.5 |
HIP 20198 |
21.96 |
| 2026-03-31 00:00 |
04:45:22.25 |
-86:48:16.4 |
HIP 20198 |
22.24 |
| 2026-03-31 12:00 |
04:45:34.33 |
-86:47:57.4 |
HIP 20198 |
22.52 |
| 2026-04-01 00:00 |
04:45:46.58 |
-86:47:38.4 |
HIP 20198 |
22.80 |
| 2026-04-01 12:00 |
04:45:59.00 |
-86:47:19.6 |
HIP 20198 |
23.08 |
| 2026-04-02 00:00 |
04:46:11.59 |
-86:47:00.8 |
HIP 20198 |
23.37 |
| 2026-04-02 12:00 |
04:46:24.34 |
-86:46:42.1 |
HIP 20198 |
23.67 |
| 2026-04-03 00:00 |
04:46:37.25 |
-86:46:23.5 |
HIP 20198 |
23.97 |
| 2026-04-03 12:00 |
04:46:50.32 |
-86:46:05.0 |
HIP 20198 |
24.27 |
| 2026-04-04 00:00 |
04:47:03.56 |
-86:45:46.6 |
HIP 20198 |
24.57 |
| 2026-04-04 12:00 |
04:47:16.95 |
-86:45:28.3 |
HIP 20198 |
24.88 |
| 2026-04-05 00:00 |
04:47:30.51 |
-86:45:10.1 |
HIP 20198 |
25.19 |
| 2026-04-05 12:00 |
04:47:44.22 |
-86:44:52.0 |
HIP 20198 |
25.50 |
| 2026-04-06 00:00 |
04:47:58.08 |
-86:44:33.9 |
HIP 20198 |
25.82 |
| 2026-04-06 12:00 |
04:48:12.10 |
-86:44:16.0 |
HIP 20198 |
26.14 |
| 2026-04-07 00:00 |
04:48:26.27 |
-86:43:58.1 |
HIP 20198 |
26.46 |
| 2026-04-07 12:00 |
04:48:40.59 |
-86:43:40.4 |
HIP 20198 |
26.79 |
| 2026-04-08 00:00 |
04:48:55.06 |
-86:43:22.7 |
HIP 20198 |
27.11 |
| 2026-04-08 12:00 |
04:49:09.68 |
-86:43:05.1 |
HIP 20198 |
27.44 |
| 2026-04-09 00:00 |
04:49:24.45 |
-86:42:47.7 |
HIP 20198 |
27.77 |
| 2026-04-09 12:00 |
04:49:39.36 |
-86:42:30.3 |
HIP 20198 |
28.11 |
| 2026-04-10 00:00 |
04:49:54.42 |
-86:42:13.1 |
HIP 20198 |
28.44 |
| 2026-04-10 12:00 |
04:50:09.62 |
-86:41:55.9 |
HIP 20198 |
28.78 |
| 2026-04-11 00:00 |
04:50:24.96 |
-86:41:38.8 |
HIP 20198 |
29.12 |
| 2026-04-11 12:00 |
04:50:40.44 |
-86:41:21.9 |
HIP 20198 |
29.46 |
| 2026-04-12 00:00 |
04:50:56.06 |
-86:41:05.0 |
HIP 20198 |
29.80 |
| 2026-04-12 12:00 |
04:51:11.82 |
-86:40:48.3 |
HIP 20198 |
30.14 |
| 2026-04-13 00:00 |
04:51:27.72 |
-86:40:31.6 |
HIP 20198 |
30.49 |
| 2026-04-13 12:00 |
04:51:43.75 |
-86:40:15.1 |
HIP 20198 |
30.83 |
| 2026-04-14 00:00 |
04:51:59.92 |
-86:39:58.7 |
HIP 20198 |
31.18 |
| 2026-04-14 12:00 |
04:52:16.22 |
-86:39:42.3 |
HIP 20198 |
31.53 |
| 2026-04-15 00:00 |
04:52:32.64 |
-86:39:26.1 |
HIP 20198 |
31.88 |
| 2026-04-15 12:00 |
04:52:49.20 |
-86:39:10.0 |
HIP 20198 |
32.23 |
| 2026-04-16 00:00 |
04:53:05.89 |
-86:38:54.0 |
HIP 20198 |
32.58 |