메타데이터
| 항목 |
값 |
| Designation |
C/1961 O1 (Wilson-Hubbard) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1961-07-17T11:55:51.530880Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:14Z |
| Obs used |
8 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1961-09-23.0000000 |
| e |
0.99991912 |
| q (au) |
0.040125 |
| a (au) |
496.136062 |
| i (deg) |
24.212158 |
| Ω (om, deg) |
298.943557 |
| ω (w, deg) |
270.697744 |
| M (ma, deg) |
0.006020 |
밝기
산란 + 전체 선형
$$
M_a = (9.581 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.581 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| k |
1.000 |
| 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) |
| 2026-06-01 00:00 |
01:02:28.65 |
+32:46:44.0 |
HIP 4908 |
33.19 |
| 2026-06-01 12:00 |
01:02:29.52 |
+32:46:55.0 |
HIP 4908 |
32.98 |
| 2026-06-02 00:00 |
01:02:30.39 |
+32:47:06.0 |
HIP 4908 |
32.76 |
| 2026-06-02 12:00 |
01:02:31.24 |
+32:47:17.1 |
HIP 4908 |
32.55 |
| 2026-06-03 00:00 |
01:02:32.09 |
+32:47:28.1 |
HIP 4908 |
32.34 |
| 2026-06-03 12:00 |
01:02:32.92 |
+32:47:39.2 |
HIP 4908 |
32.13 |
| 2026-06-04 00:00 |
01:02:33.74 |
+32:47:50.2 |
HIP 4908 |
31.92 |
| 2026-06-04 12:00 |
01:02:34.56 |
+32:48:01.2 |
HIP 4908 |
31.72 |
| 2026-06-05 00:00 |
01:02:35.36 |
+32:48:12.2 |
HIP 4908 |
31.51 |
| 2026-06-05 12:00 |
01:02:36.16 |
+32:48:23.2 |
HIP 4908 |
31.31 |
| 2026-06-06 00:00 |
01:02:36.94 |
+32:48:34.2 |
HIP 4908 |
31.10 |
| 2026-06-06 12:00 |
01:02:37.71 |
+32:48:45.2 |
HIP 4908 |
30.90 |
| 2026-06-07 00:00 |
01:02:38.48 |
+32:48:56.2 |
HIP 4908 |
30.70 |
| 2026-06-07 12:00 |
01:02:39.23 |
+32:49:07.2 |
HIP 4908 |
30.50 |
| 2026-06-08 00:00 |
01:02:39.97 |
+32:49:18.2 |
HIP 4908 |
30.29 |
| 2026-06-08 12:00 |
01:02:40.70 |
+32:49:29.1 |
HIP 4908 |
30.10 |
| 2026-06-09 00:00 |
01:02:41.43 |
+32:49:40.1 |
HIP 4908 |
29.90 |
| 2026-06-09 12:00 |
01:02:42.14 |
+32:49:51.0 |
HIP 4908 |
29.70 |
| 2026-06-10 00:00 |
01:02:42.84 |
+32:50:01.9 |
HIP 4908 |
29.50 |
| 2026-06-10 12:00 |
01:02:43.53 |
+32:50:12.8 |
HIP 4908 |
29.31 |
| 2026-06-11 00:00 |
01:02:44.21 |
+32:50:23.7 |
HIP 4908 |
29.12 |
| 2026-06-11 12:00 |
01:02:44.88 |
+32:50:34.5 |
HIP 4908 |
28.92 |
| 2026-06-12 00:00 |
01:02:45.53 |
+32:50:45.4 |
HIP 4908 |
28.73 |
| 2026-06-12 12:00 |
01:02:46.18 |
+32:50:56.2 |
HIP 4908 |
28.54 |
| 2026-06-13 00:00 |
01:02:46.82 |
+32:51:07.0 |
HIP 4908 |
28.35 |
| 2026-06-13 12:00 |
01:02:47.44 |
+32:51:17.8 |
HIP 4908 |
28.16 |
| 2026-06-14 00:00 |
01:02:48.05 |
+32:51:28.6 |
HIP 4908 |
27.97 |
| 2026-06-14 12:00 |
01:02:48.66 |
+32:51:39.4 |
HIP 4908 |
27.79 |
| 2026-06-15 00:00 |
01:02:49.25 |
+32:51:50.1 |
HIP 4908 |
27.60 |
| 2026-06-15 12:00 |
01:02:49.83 |
+32:52:00.8 |
HIP 4908 |
27.41 |
| 2026-06-16 00:00 |
01:02:50.40 |
+32:52:11.5 |
HIP 4908 |
27.23 |
| 2026-06-16 12:00 |
01:02:50.96 |
+32:52:22.2 |
HIP 4908 |
27.05 |
| 2026-06-17 00:00 |
01:02:51.50 |
+32:52:32.8 |
HIP 4908 |
26.86 |
| 2026-06-17 12:00 |
01:02:52.04 |
+32:52:43.4 |
HIP 4908 |
26.68 |
| 2026-06-18 00:00 |
01:02:52.56 |
+32:52:54.0 |
HIP 4908 |
26.50 |
| 2026-06-18 12:00 |
01:02:53.07 |
+32:53:04.6 |
HIP 4908 |
26.32 |
| 2026-06-19 00:00 |
01:02:53.57 |
+32:53:15.1 |
HIP 4908 |
26.15 |
| 2026-06-19 12:00 |
01:02:54.06 |
+32:53:25.6 |
HIP 4908 |
25.97 |
| 2026-06-20 00:00 |
01:02:54.54 |
+32:53:36.1 |
HIP 4908 |
25.79 |
| 2026-06-20 12:00 |
01:02:55.01 |
+32:53:46.5 |
HIP 4908 |
25.61 |
| 2026-06-21 00:00 |
01:02:55.46 |
+32:53:57.0 |
HIP 4908 |
25.44 |
| 2026-06-21 12:00 |
01:02:55.91 |
+32:54:07.3 |
HIP 4908 |
25.27 |
| 2026-06-22 00:00 |
01:02:56.34 |
+32:54:17.7 |
HIP 4908 |
25.09 |