메타데이터
| 항목 |
값 |
| Designation |
C/2002 O4 (Hoenig) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-10-01T23:33:55.399680Z |
| Orbit solution date (soln_date, UTC) |
2021-11-20T19:12:51Z |
| Obs used |
1195 |
| NEO |
- |
| M1 |
13.300 |
| K1 |
8.750 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2002-08-13.0000000 |
| e |
1.00085552 |
| q (au) |
0.776209 |
| a (au) |
-907.293712 |
| i (deg) |
73.126827 |
| Ω (om, deg) |
321.040639 |
| ω (w, deg) |
105.936774 |
| M (ma, deg) |
-0.001803 |
밝기
산란 + 전체 선형
$$
M_a = (9.577 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.577 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2002-07-22 |
2002-08-14 |
+37.8142 |
-4.484 |
| 2002-08-14 |
2002-10-01 |
-12.0631 |
+0.022 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
08:45:38.06 |
-75:35:24.9 |
HIP 43386 |
17.73 |
| 2026-06-01 12:00 |
08:45:43.15 |
-75:34:52.7 |
HIP 43386 |
17.57 |
| 2026-06-02 00:00 |
08:45:48.32 |
-75:34:20.7 |
HIP 43386 |
17.41 |
| 2026-06-02 12:00 |
08:45:53.54 |
-75:33:48.8 |
HIP 43386 |
17.28 |
| 2026-06-03 00:00 |
08:45:58.84 |
-75:33:17.1 |
HIP 43386 |
17.16 |
| 2026-06-03 12:00 |
08:46:04.19 |
-75:32:45.6 |
HIP 43386 |
17.05 |
| 2026-06-04 00:00 |
08:46:09.61 |
-75:32:14.2 |
HIP 43386 |
16.96 |
| 2026-06-04 12:00 |
08:46:15.09 |
-75:31:43.0 |
HIP 43386 |
16.90 |
| 2026-06-05 00:00 |
08:46:20.63 |
-75:31:12.0 |
HIP 43386 |
16.84 |
| 2026-06-05 12:00 |
08:46:26.24 |
-75:30:41.1 |
HIP 43386 |
16.81 |
| 2026-06-06 00:00 |
08:46:31.90 |
-75:30:10.5 |
HIP 43386 |
16.79 |
| 2026-06-06 12:00 |
08:46:37.63 |
-75:29:40.0 |
HIP 43386 |
16.79 |
| 2026-06-07 00:00 |
08:46:43.42 |
-75:29:09.7 |
HIP 43386 |
16.81 |
| 2026-06-07 12:00 |
08:46:49.26 |
-75:28:39.6 |
HIP 43386 |
16.85 |
| 2026-06-08 00:00 |
08:46:55.17 |
-75:28:09.6 |
HIP 43386 |
16.90 |
| 2026-06-08 12:00 |
08:47:01.14 |
-75:27:39.9 |
HIP 43386 |
16.97 |
| 2026-06-09 00:00 |
08:47:07.16 |
-75:27:10.3 |
HIP 43386 |
17.06 |
| 2026-06-09 12:00 |
08:47:13.24 |
-75:26:40.9 |
HIP 43386 |
17.17 |
| 2026-06-10 00:00 |
08:47:19.38 |
-75:26:11.8 |
HIP 43386 |
17.29 |
| 2026-06-10 12:00 |
08:47:25.58 |
-75:25:42.8 |
HIP 43386 |
17.43 |
| 2026-06-11 00:00 |
08:47:31.84 |
-75:25:14.0 |
HIP 43386 |
17.58 |
| 2026-06-11 12:00 |
08:47:38.15 |
-75:24:45.4 |
HIP 43386 |
17.75 |
| 2026-06-12 00:00 |
08:47:44.51 |
-75:24:17.0 |
HIP 43386 |
17.94 |
| 2026-06-12 12:00 |
08:47:50.94 |
-75:23:48.8 |
HIP 43386 |
18.13 |
| 2026-06-13 00:00 |
08:47:57.41 |
-75:23:20.9 |
HIP 43386 |
18.35 |
| 2026-06-13 12:00 |
08:48:03.95 |
-75:22:53.1 |
HIP 43386 |
18.57 |
| 2026-06-14 00:00 |
08:48:10.53 |
-75:22:25.5 |
HIP 43386 |
18.81 |
| 2026-06-14 12:00 |
08:48:17.17 |
-75:21:58.2 |
HIP 43277 |
18.64 |
| 2026-06-15 00:00 |
08:48:23.86 |
-75:21:31.1 |
HIP 43277 |
18.13 |
| 2026-06-15 12:00 |
08:48:30.61 |
-75:21:04.1 |
HIP 43277 |
17.64 |
| 2026-06-16 00:00 |
08:48:37.40 |
-75:20:37.4 |
HIP 43277 |
17.15 |
| 2026-06-16 12:00 |
08:48:44.25 |
-75:20:10.9 |
HIP 43277 |
16.68 |
| 2026-06-17 00:00 |
08:48:51.15 |
-75:19:44.7 |
HIP 43277 |
16.22 |
| 2026-06-17 12:00 |
08:48:58.10 |
-75:19:18.6 |
HIP 43277 |
15.78 |
| 2026-06-18 00:00 |
08:49:05.10 |
-75:18:52.8 |
HIP 43277 |
15.36 |
| 2026-06-18 12:00 |
08:49:12.14 |
-75:18:27.2 |
HIP 43277 |
14.95 |
| 2026-06-19 00:00 |
08:49:19.24 |
-75:18:01.8 |
HIP 43277 |
14.56 |
| 2026-06-19 12:00 |
08:49:26.38 |
-75:17:36.7 |
HIP 43277 |
14.19 |
| 2026-06-20 00:00 |
08:49:33.57 |
-75:17:11.8 |
HIP 43277 |
13.84 |
| 2026-06-20 12:00 |
08:49:40.81 |
-75:16:47.1 |
HIP 43277 |
13.52 |
| 2026-06-21 00:00 |
08:49:48.09 |
-75:16:22.7 |
HIP 43277 |
13.22 |
| 2026-06-21 12:00 |
08:49:55.42 |
-75:15:58.4 |
HIP 43277 |
12.95 |
| 2026-06-22 00:00 |
08:50:02.80 |
-75:15:34.5 |
HIP 43277 |
12.71 |