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) |
| 2026-09-20 00:00 |
19:21:23.46 |
+59:37:31.5 |
HIP 95117 |
11.87 |
| 2026-09-20 12:00 |
19:21:22.45 |
+59:37:11.5 |
HIP 95117 |
11.52 |
| 2026-09-21 00:00 |
19:21:21.47 |
+59:36:51.5 |
HIP 95117 |
11.17 |
| 2026-09-21 12:00 |
19:21:20.51 |
+59:36:31.4 |
HIP 95117 |
10.81 |
| 2026-09-22 00:00 |
19:21:19.57 |
+59:36:11.3 |
HIP 95117 |
10.46 |
| 2026-09-22 12:00 |
19:21:18.66 |
+59:35:51.0 |
HIP 95117 |
10.11 |
| 2026-09-23 00:00 |
19:21:17.76 |
+59:35:30.8 |
HIP 95117 |
9.75 |
| 2026-09-23 12:00 |
19:21:16.90 |
+59:35:10.5 |
HIP 95117 |
9.40 |
| 2026-09-24 00:00 |
19:21:16.05 |
+59:34:50.1 |
HIP 95117 |
9.04 |
| 2026-09-24 12:00 |
19:21:15.23 |
+59:34:29.7 |
HIP 95117 |
8.69 |
| 2026-09-25 00:00 |
19:21:14.43 |
+59:34:09.2 |
HIP 95117 |
8.33 |
| 2026-09-25 12:00 |
19:21:13.65 |
+59:33:48.7 |
HIP 95117 |
7.98 |
| 2026-09-26 00:00 |
19:21:12.90 |
+59:33:28.1 |
HIP 95117 |
7.62 |
| 2026-09-26 12:00 |
19:21:12.17 |
+59:33:07.5 |
HIP 95117 |
7.27 |
| 2026-09-27 00:00 |
19:21:11.46 |
+59:32:46.8 |
HIP 95117 |
6.91 |
| 2026-09-27 12:00 |
19:21:10.77 |
+59:32:26.1 |
HIP 95117 |
6.56 |
| 2026-09-28 00:00 |
19:21:10.11 |
+59:32:05.4 |
HIP 95117 |
6.20 |
| 2026-09-28 12:00 |
19:21:09.48 |
+59:31:44.6 |
HIP 95117 |
5.85 |
| 2026-09-29 00:00 |
19:21:08.86 |
+59:31:23.8 |
HIP 95117 |
5.49 |
| 2026-09-29 12:00 |
19:21:08.27 |
+59:31:02.9 |
HIP 95117 |
5.14 |
| 2026-09-30 00:00 |
19:21:07.70 |
+59:30:42.0 |
HIP 95117 |
4.78 |
| 2026-09-30 12:00 |
19:21:07.16 |
+59:30:21.1 |
HIP 95117 |
4.42 |
| 2026-10-01 00:00 |
19:21:06.64 |
+59:30:00.1 |
HIP 95117 |
4.07 |
| 2026-10-01 12:00 |
19:21:06.14 |
+59:29:39.1 |
HIP 95117 |
3.71 |
| 2026-10-02 00:00 |
19:21:05.67 |
+59:29:18.1 |
HIP 95117 |
3.36 |
| 2026-10-02 12:00 |
19:21:05.22 |
+59:28:57.0 |
HIP 95117 |
3.00 |
| 2026-10-03 00:00 |
19:21:04.80 |
+59:28:36.0 |
HIP 95117 |
2.65 |
| 2026-10-03 12:00 |
19:21:04.40 |
+59:28:14.8 |
HIP 95117 |
2.29 |
| 2026-10-04 00:00 |
19:21:04.02 |
+59:27:53.7 |
HIP 95117 |
1.94 |
| 2026-10-04 12:00 |
19:21:03.66 |
+59:27:32.6 |
HIP 95117 |
1.58 |
| 2026-10-05 00:00 |
19:21:03.33 |
+59:27:11.4 |
HIP 95117 |
1.23 |
| 2026-10-05 12:00 |
19:21:03.03 |
+59:26:50.2 |
HIP 95117 |
0.88 |
| 2026-10-06 00:00 |
19:21:02.75 |
+59:26:29.0 |
HIP 95117 |
0.53 |
| 2026-10-06 12:00 |
19:21:02.49 |
+59:26:07.7 |
HIP 95117 |
0.22 |
| 2026-10-07 00:00 |
19:21:02.25 |
+59:25:46.5 |
HIP 95117 |
0.26 |
| 2026-10-07 12:00 |
19:21:02.04 |
+59:25:25.2 |
HIP 95117 |
0.58 |
| 2026-10-08 00:00 |
19:21:01.86 |
+59:25:04.0 |
HIP 95117 |
0.93 |
| 2026-10-08 12:00 |
19:21:01.70 |
+59:24:42.7 |
HIP 95117 |
1.28 |
| 2026-10-09 00:00 |
19:21:01.56 |
+59:24:21.4 |
HIP 95117 |
1.64 |
| 2026-10-09 12:00 |
19:21:01.45 |
+59:24:00.1 |
HIP 95117 |
1.99 |
| 2026-10-10 00:00 |
19:21:01.36 |
+59:23:38.8 |
HIP 95117 |
2.35 |
| 2026-10-10 12:00 |
19:21:01.29 |
+59:23:17.5 |
HIP 95117 |
2.70 |
| 2026-10-11 00:00 |
19:21:01.25 |
+59:22:56.2 |
HIP 95117 |
3.06 |