메타데이터
| 항목 |
값 |
| Designation |
C/1970 B1 (Daido-Fujikawa) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1970-02-15T19:19:12.423360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:19Z |
| Obs used |
32 |
| NEO |
- |
| M1 |
9.700 |
| K1 |
12.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1970-02-04.0000000 |
| e |
1.00001913 |
| q (au) |
0.065746 |
| a (au) |
-3436.434080 |
| i (deg) |
100.182807 |
| Ω (om, deg) |
30.596034 |
| ω (w, deg) |
266.648729 |
| M (ma, deg) |
-0.000058 |
밝기
산란 + 전체 선형
$$
M_a = (10.070 + 5.369\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.070 |
| n |
5.369 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.800 |
| δ90 |
10.000 |
| 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) |
| 2026-05-12 00:00 |
19:31:11.38 |
+59:44:22.6 |
HIP 95762 |
19.32 |
| 2026-05-12 12:00 |
19:31:10.00 |
+59:44:40.7 |
HIP 95762 |
19.12 |
| 2026-05-13 00:00 |
19:31:08.59 |
+59:44:58.7 |
HIP 95762 |
18.93 |
| 2026-05-13 12:00 |
19:31:07.17 |
+59:45:16.6 |
HIP 95762 |
18.74 |
| 2026-05-14 00:00 |
19:31:05.72 |
+59:45:34.4 |
HIP 95762 |
18.55 |
| 2026-05-14 12:00 |
19:31:04.26 |
+59:45:52.1 |
HIP 95762 |
18.36 |
| 2026-05-15 00:00 |
19:31:02.77 |
+59:46:09.7 |
HIP 95762 |
18.17 |
| 2026-05-15 12:00 |
19:31:01.27 |
+59:46:27.3 |
HIP 95762 |
17.99 |
| 2026-05-16 00:00 |
19:30:59.74 |
+59:46:44.7 |
HIP 95762 |
17.81 |
| 2026-05-16 12:00 |
19:30:58.19 |
+59:47:02.0 |
HIP 95762 |
17.63 |
| 2026-05-17 00:00 |
19:30:56.62 |
+59:47:19.2 |
HIP 95762 |
17.45 |
| 2026-05-17 12:00 |
19:30:55.04 |
+59:47:36.3 |
HIP 95762 |
17.28 |
| 2026-05-18 00:00 |
19:30:53.43 |
+59:47:53.3 |
HIP 95762 |
17.11 |
| 2026-05-18 12:00 |
19:30:51.80 |
+59:48:10.1 |
HIP 95762 |
16.94 |
| 2026-05-19 00:00 |
19:30:50.15 |
+59:48:26.9 |
HIP 95762 |
16.78 |
| 2026-05-19 12:00 |
19:30:48.49 |
+59:48:43.6 |
HIP 95762 |
16.61 |
| 2026-05-20 00:00 |
19:30:46.80 |
+59:49:00.1 |
HIP 95762 |
16.45 |
| 2026-05-20 12:00 |
19:30:45.10 |
+59:49:16.5 |
HIP 95762 |
16.30 |
| 2026-05-21 00:00 |
19:30:43.37 |
+59:49:32.8 |
HIP 95762 |
16.15 |
| 2026-05-21 12:00 |
19:30:41.63 |
+59:49:49.0 |
HIP 95762 |
16.00 |
| 2026-05-22 00:00 |
19:30:39.87 |
+59:50:05.1 |
HIP 95762 |
15.85 |
| 2026-05-22 12:00 |
19:30:38.09 |
+59:50:21.1 |
HIP 95762 |
15.71 |
| 2026-05-23 00:00 |
19:30:36.29 |
+59:50:36.9 |
HIP 95762 |
15.57 |
| 2026-05-23 12:00 |
19:30:34.47 |
+59:50:52.6 |
HIP 95762 |
15.43 |
| 2026-05-24 00:00 |
19:30:32.63 |
+59:51:08.2 |
HIP 95762 |
15.30 |
| 2026-05-24 12:00 |
19:30:30.78 |
+59:51:23.7 |
HIP 95762 |
15.18 |
| 2026-05-25 00:00 |
19:30:28.91 |
+59:51:39.0 |
HIP 95762 |
15.05 |
| 2026-05-25 12:00 |
19:30:27.02 |
+59:51:54.2 |
HIP 95762 |
14.93 |
| 2026-05-26 00:00 |
19:30:25.11 |
+59:52:09.3 |
HIP 95762 |
14.82 |
| 2026-05-26 12:00 |
19:30:23.18 |
+59:52:24.3 |
HIP 95762 |
14.71 |
| 2026-05-27 00:00 |
19:30:21.24 |
+59:52:39.1 |
HIP 95762 |
14.61 |
| 2026-05-27 12:00 |
19:30:19.28 |
+59:52:53.8 |
HIP 95762 |
14.50 |
| 2026-05-28 00:00 |
19:30:17.30 |
+59:53:08.4 |
HIP 95762 |
14.41 |
| 2026-05-28 12:00 |
19:30:15.31 |
+59:53:22.8 |
HIP 95762 |
14.32 |
| 2026-05-29 00:00 |
19:30:13.30 |
+59:53:37.2 |
HIP 95762 |
14.23 |
| 2026-05-29 12:00 |
19:30:11.27 |
+59:53:51.3 |
HIP 95762 |
14.15 |
| 2026-05-30 00:00 |
19:30:09.23 |
+59:54:05.4 |
HIP 95762 |
14.08 |
| 2026-05-30 12:00 |
19:30:07.17 |
+59:54:19.3 |
HIP 95762 |
14.01 |
| 2026-05-31 00:00 |
19:30:05.09 |
+59:54:33.0 |
HIP 95762 |
13.94 |
| 2026-05-31 12:00 |
19:30:03.00 |
+59:54:46.7 |
HIP 95762 |
13.88 |
| 2026-06-01 00:00 |
19:30:00.89 |
+59:55:00.2 |
HIP 95762 |
13.83 |
| 2026-06-01 12:00 |
19:29:58.76 |
+59:55:13.5 |
HIP 95762 |
13.78 |
| 2026-06-02 00:00 |
19:29:56.62 |
+59:55:26.7 |
HIP 95762 |
13.74 |