메타데이터
| 항목 |
값 |
| Designation |
C/1988 F1 (Levy) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1987-11-29T22:34:57.907200Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:36Z |
| Obs used |
37 |
| NEO |
- |
| M1 |
4.800 |
| K1 |
19.750 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1988-05-22.0000000 |
| e |
0.99771483 |
| q (au) |
1.174205 |
| a (au) |
513.837337 |
| i (deg) |
62.807742 |
| Ω (om, deg) |
288.763862 |
| ω (w, deg) |
326.514381 |
| M (ma, deg) |
0.014729 |
밝기
산란 + 전체 선형
$$
M_a = (11.001 + 2.109\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.001 |
| n |
2.109 |
| 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) |
| 2026-07-29 00:00 |
05:04:18.79 |
+64:33:41.7 |
HIP 23622 |
25.87 |
| 2026-07-29 12:00 |
05:04:21.68 |
+64:33:56.5 |
HIP 23622 |
26.09 |
| 2026-07-30 00:00 |
05:04:24.55 |
+64:34:11.5 |
HIP 23622 |
26.31 |
| 2026-07-30 12:00 |
05:04:27.39 |
+64:34:26.5 |
HIP 23622 |
26.54 |
| 2026-07-31 00:00 |
05:04:30.21 |
+64:34:41.6 |
HIP 23622 |
26.78 |
| 2026-07-31 12:00 |
05:04:33.00 |
+64:34:56.8 |
HIP 23622 |
27.02 |
| 2026-08-01 00:00 |
05:04:35.76 |
+64:35:12.1 |
HIP 23622 |
27.26 |
| 2026-08-01 12:00 |
05:04:38.50 |
+64:35:27.4 |
HIP 23622 |
27.51 |
| 2026-08-02 00:00 |
05:04:41.21 |
+64:35:42.9 |
HIP 23622 |
27.77 |
| 2026-08-02 12:00 |
05:04:43.89 |
+64:35:58.4 |
HIP 23622 |
28.03 |
| 2026-08-03 00:00 |
05:04:46.54 |
+64:36:14.0 |
HIP 23622 |
28.29 |
| 2026-08-03 12:00 |
05:04:49.16 |
+64:36:29.7 |
HIP 23622 |
28.56 |
| 2026-08-04 00:00 |
05:04:51.76 |
+64:36:45.5 |
HIP 23622 |
28.83 |
| 2026-08-04 12:00 |
05:04:54.33 |
+64:37:01.3 |
HIP 23622 |
29.11 |
| 2026-08-05 00:00 |
05:04:56.87 |
+64:37:17.3 |
HIP 23622 |
29.39 |
| 2026-08-05 12:00 |
05:04:59.38 |
+64:37:33.3 |
HIP 23622 |
29.67 |
| 2026-08-06 00:00 |
05:05:01.86 |
+64:37:49.4 |
HIP 23622 |
29.95 |
| 2026-08-06 12:00 |
05:05:04.31 |
+64:38:05.5 |
HIP 23622 |
30.24 |
| 2026-08-07 00:00 |
05:05:06.74 |
+64:38:21.7 |
HIP 23622 |
30.53 |
| 2026-08-07 12:00 |
05:05:09.13 |
+64:38:38.0 |
HIP 23622 |
30.83 |
| 2026-08-08 00:00 |
05:05:11.50 |
+64:38:54.4 |
HIP 23622 |
31.12 |
| 2026-08-08 12:00 |
05:05:13.83 |
+64:39:10.9 |
HIP 23622 |
31.42 |
| 2026-08-09 00:00 |
05:05:16.13 |
+64:39:27.4 |
HIP 23622 |
31.73 |
| 2026-08-09 12:00 |
05:05:18.41 |
+64:39:44.0 |
HIP 23622 |
32.03 |
| 2026-08-10 00:00 |
05:05:20.65 |
+64:40:00.6 |
HIP 24017 |
31.94 |
| 2026-08-10 12:00 |
05:05:22.86 |
+64:40:17.3 |
HIP 24017 |
31.59 |
| 2026-08-11 00:00 |
05:05:25.04 |
+64:40:34.1 |
HIP 24017 |
31.26 |
| 2026-08-11 12:00 |
05:05:27.19 |
+64:40:50.9 |
HIP 24017 |
30.92 |
| 2026-08-12 00:00 |
05:05:29.31 |
+64:41:07.9 |
HIP 24017 |
30.59 |
| 2026-08-12 12:00 |
05:05:31.40 |
+64:41:24.8 |
HIP 24017 |
30.26 |
| 2026-08-13 00:00 |
05:05:33.45 |
+64:41:41.9 |
HIP 24017 |
29.93 |
| 2026-08-13 12:00 |
05:05:35.48 |
+64:41:58.9 |
HIP 24017 |
29.61 |
| 2026-08-14 00:00 |
05:05:37.47 |
+64:42:16.1 |
HIP 24017 |
29.29 |
| 2026-08-14 12:00 |
05:05:39.43 |
+64:42:33.3 |
HIP 24017 |
28.98 |
| 2026-08-15 00:00 |
05:05:41.35 |
+64:42:50.6 |
HIP 24017 |
28.67 |
| 2026-08-15 12:00 |
05:05:43.25 |
+64:43:07.9 |
HIP 24017 |
28.36 |
| 2026-08-16 00:00 |
05:05:45.11 |
+64:43:25.2 |
HIP 24017 |
28.05 |
| 2026-08-16 12:00 |
05:05:46.94 |
+64:43:42.7 |
HIP 24017 |
27.76 |
| 2026-08-17 00:00 |
05:05:48.73 |
+64:44:00.1 |
HIP 24017 |
27.46 |
| 2026-08-17 12:00 |
05:05:50.49 |
+64:44:17.6 |
HIP 24017 |
27.17 |
| 2026-08-18 00:00 |
05:05:52.22 |
+64:44:35.2 |
HIP 24017 |
26.88 |
| 2026-08-18 12:00 |
05:05:53.92 |
+64:44:52.8 |
HIP 24017 |
26.60 |
| 2026-08-19 00:00 |
05:05:55.58 |
+64:45:10.5 |
HIP 24017 |
26.32 |