메타데이터
| 항목 |
값 |
| Designation |
C/1947 F1 (Rondanina-Bester) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1947-05-20T23:09:22.504320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:07Z |
| Obs used |
15 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1947-04-18.0000000 |
| e |
0.99727691 |
| q (au) |
0.559812 |
| a (au) |
205.579925 |
| i (deg) |
39.291590 |
| Ω (om, deg) |
353.903996 |
| ω (w, deg) |
303.758245 |
| M (ma, deg) |
359.988977 |
밝기
산란 + 전체 선형
$$
M_a = (7.611 + 3.727\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.611 |
| n |
3.727 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.950 |
| δ90 |
1.000 |
| 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) |
| 2026-03-26 00:00 |
08:32:47.80 |
+54:48:23.4 |
HIP 41779 |
16.83 |
| 2026-03-26 12:00 |
08:32:46.75 |
+54:48:16.0 |
HIP 41779 |
16.77 |
| 2026-03-27 00:00 |
08:32:45.71 |
+54:48:08.5 |
HIP 41779 |
16.72 |
| 2026-03-27 12:00 |
08:32:44.69 |
+54:48:01.0 |
HIP 41779 |
16.67 |
| 2026-03-28 00:00 |
08:32:43.69 |
+54:47:53.4 |
HIP 41779 |
16.62 |
| 2026-03-28 12:00 |
08:32:42.70 |
+54:47:45.7 |
HIP 41779 |
16.58 |
| 2026-03-29 00:00 |
08:32:41.73 |
+54:47:38.0 |
HIP 41779 |
16.55 |
| 2026-03-29 12:00 |
08:32:40.77 |
+54:47:30.1 |
HIP 41779 |
16.52 |
| 2026-03-30 00:00 |
08:32:39.83 |
+54:47:22.3 |
HIP 41779 |
16.49 |
| 2026-03-30 12:00 |
08:32:38.91 |
+54:47:14.3 |
HIP 41779 |
16.47 |
| 2026-03-31 00:00 |
08:32:38.00 |
+54:47:06.3 |
HIP 41779 |
16.46 |
| 2026-03-31 12:00 |
08:32:37.11 |
+54:46:58.2 |
HIP 41779 |
16.45 |
| 2026-04-01 00:00 |
08:32:36.23 |
+54:46:50.0 |
HIP 41779 |
16.44 |
| 2026-04-01 12:00 |
08:32:35.37 |
+54:46:41.8 |
HIP 41779 |
16.44 |
| 2026-04-02 00:00 |
08:32:34.53 |
+54:46:33.5 |
HIP 41779 |
16.44 |
| 2026-04-02 12:00 |
08:32:33.70 |
+54:46:25.2 |
HIP 41779 |
16.44 |
| 2026-04-03 00:00 |
08:32:32.89 |
+54:46:16.7 |
HIP 41779 |
16.45 |
| 2026-04-03 12:00 |
08:32:32.09 |
+54:46:08.3 |
HIP 41779 |
16.47 |
| 2026-04-04 00:00 |
08:32:31.32 |
+54:45:59.7 |
HIP 41779 |
16.49 |
| 2026-04-04 12:00 |
08:32:30.55 |
+54:45:51.1 |
HIP 41779 |
16.51 |
| 2026-04-05 00:00 |
08:32:29.81 |
+54:45:42.5 |
HIP 41779 |
16.54 |
| 2026-04-05 12:00 |
08:32:29.08 |
+54:45:33.7 |
HIP 41779 |
16.57 |
| 2026-04-06 00:00 |
08:32:28.36 |
+54:45:24.9 |
HIP 41779 |
16.61 |
| 2026-04-06 12:00 |
08:32:27.67 |
+54:45:16.1 |
HIP 41779 |
16.65 |
| 2026-04-07 00:00 |
08:32:26.99 |
+54:45:07.2 |
HIP 41779 |
16.70 |
| 2026-04-07 12:00 |
08:32:26.33 |
+54:44:58.2 |
HIP 41779 |
16.75 |
| 2026-04-08 00:00 |
08:32:25.68 |
+54:44:49.2 |
HIP 41779 |
16.80 |
| 2026-04-08 12:00 |
08:32:25.05 |
+54:44:40.1 |
HIP 41779 |
16.86 |
| 2026-04-09 00:00 |
08:32:24.44 |
+54:44:31.0 |
HIP 41779 |
16.92 |
| 2026-04-09 12:00 |
08:32:23.84 |
+54:44:21.8 |
HIP 41779 |
16.98 |
| 2026-04-10 00:00 |
08:32:23.26 |
+54:44:12.6 |
HIP 41779 |
17.05 |
| 2026-04-10 12:00 |
08:32:22.70 |
+54:44:03.3 |
HIP 41779 |
17.12 |
| 2026-04-11 00:00 |
08:32:22.16 |
+54:43:53.9 |
HIP 41779 |
17.20 |
| 2026-04-11 12:00 |
08:32:21.63 |
+54:43:44.5 |
HIP 41779 |
17.28 |
| 2026-04-12 00:00 |
08:32:21.12 |
+54:43:35.1 |
HIP 41779 |
17.36 |
| 2026-04-12 12:00 |
08:32:20.62 |
+54:43:25.6 |
HIP 41779 |
17.45 |
| 2026-04-13 00:00 |
08:32:20.15 |
+54:43:16.0 |
HIP 41810 |
17.35 |
| 2026-04-13 12:00 |
08:32:19.69 |
+54:43:06.4 |
HIP 41810 |
17.18 |
| 2026-04-14 00:00 |
08:32:19.24 |
+54:42:56.8 |
HIP 41810 |
17.01 |
| 2026-04-14 12:00 |
08:32:18.82 |
+54:42:47.1 |
HIP 41810 |
16.84 |
| 2026-04-15 00:00 |
08:32:18.41 |
+54:42:37.3 |
HIP 41810 |
16.67 |
| 2026-04-15 12:00 |
08:32:18.02 |
+54:42:27.5 |
HIP 41810 |
16.49 |
| 2026-04-16 00:00 |
08:32:17.65 |
+54:42:17.7 |
HIP 41810 |
16.32 |