메타데이터
| 항목 |
값 |
| Designation |
C/1997 L1 (Zhu-Balam) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1996-11-22T20:49:19.153920Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:51Z |
| Obs used |
213 |
| NEO |
- |
| M1 |
6.500 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1997-08-22.0000000 |
| e |
0.99797377 |
| q (au) |
4.899563 |
| a (au) |
2418.066374 |
| i (deg) |
72.991461 |
| Ω (om, deg) |
233.299834 |
| ω (w, deg) |
346.364690 |
| M (ma, deg) |
0.002256 |
밝기
산란 + 전체 선형
$$
M_a = (2.899 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
2.899 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-05-12 00:00 |
00:27:13.73 |
+55:06:14.2 |
HIP 2024 |
14.73 |
| 2026-05-12 12:00 |
00:27:16.72 |
+55:06:38.5 |
HIP 2024 |
15.29 |
| 2026-05-13 00:00 |
00:27:19.69 |
+55:07:02.9 |
HIP 2024 |
15.85 |
| 2026-05-13 12:00 |
00:27:22.64 |
+55:07:27.4 |
HIP 2024 |
16.42 |
| 2026-05-14 00:00 |
00:27:25.57 |
+55:07:52.0 |
HIP 2024 |
16.98 |
| 2026-05-14 12:00 |
00:27:28.48 |
+55:08:16.7 |
HIP 2024 |
17.55 |
| 2026-05-15 00:00 |
00:27:31.36 |
+55:08:41.5 |
HIP 2024 |
18.11 |
| 2026-05-15 12:00 |
00:27:34.22 |
+55:09:06.5 |
HIP 2024 |
18.67 |
| 2026-05-16 00:00 |
00:27:37.06 |
+55:09:31.5 |
HIP 2024 |
19.23 |
| 2026-05-16 12:00 |
00:27:39.88 |
+55:09:56.7 |
HIP 2024 |
19.79 |
| 2026-05-17 00:00 |
00:27:42.67 |
+55:10:21.9 |
HIP 2024 |
20.35 |
| 2026-05-17 12:00 |
00:27:45.44 |
+55:10:47.3 |
HIP 2024 |
20.91 |
| 2026-05-18 00:00 |
00:27:48.19 |
+55:11:12.7 |
HIP 2024 |
21.47 |
| 2026-05-18 12:00 |
00:27:50.91 |
+55:11:38.3 |
HIP 2024 |
22.02 |
| 2026-05-19 00:00 |
00:27:53.61 |
+55:12:03.9 |
HIP 2024 |
22.58 |
| 2026-05-19 12:00 |
00:27:56.29 |
+55:12:29.7 |
HIP 2063 |
23.06 |
| 2026-05-20 00:00 |
00:27:58.94 |
+55:12:55.5 |
HIP 2063 |
23.01 |
| 2026-05-20 12:00 |
00:28:01.57 |
+55:13:21.4 |
HIP 2063 |
22.96 |
| 2026-05-21 00:00 |
00:28:04.17 |
+55:13:47.4 |
HIP 2063 |
22.93 |
| 2026-05-21 12:00 |
00:28:06.75 |
+55:14:13.5 |
HIP 2063 |
22.90 |
| 2026-05-22 00:00 |
00:28:09.30 |
+55:14:39.7 |
HIP 2063 |
22.89 |
| 2026-05-22 12:00 |
00:28:11.83 |
+55:15:06.0 |
HIP 2063 |
22.89 |
| 2026-05-23 00:00 |
00:28:14.34 |
+55:15:32.3 |
HIP 2063 |
22.89 |
| 2026-05-23 12:00 |
00:28:16.81 |
+55:15:58.7 |
HIP 2063 |
22.91 |
| 2026-05-24 00:00 |
00:28:19.27 |
+55:16:25.2 |
HIP 2063 |
22.94 |
| 2026-05-24 12:00 |
00:28:21.70 |
+55:16:51.8 |
HIP 2063 |
22.98 |
| 2026-05-25 00:00 |
00:28:24.10 |
+55:17:18.4 |
HIP 2063 |
23.02 |
| 2026-05-25 12:00 |
00:28:26.48 |
+55:17:45.1 |
HIP 2063 |
23.08 |
| 2026-05-26 00:00 |
00:28:28.83 |
+55:18:11.9 |
HIP 2063 |
23.15 |
| 2026-05-26 12:00 |
00:28:31.15 |
+55:18:38.8 |
HIP 2063 |
23.22 |
| 2026-05-27 00:00 |
00:28:33.45 |
+55:19:05.7 |
HIP 2457 |
23.03 |
| 2026-05-27 12:00 |
00:28:35.72 |
+55:19:32.6 |
HIP 2457 |
22.73 |
| 2026-05-28 00:00 |
00:28:37.97 |
+55:19:59.7 |
HIP 2457 |
22.45 |
| 2026-05-28 12:00 |
00:28:40.19 |
+55:20:26.8 |
HIP 2457 |
22.18 |
| 2026-05-29 00:00 |
00:28:42.38 |
+55:20:53.9 |
HIP 2457 |
21.92 |
| 2026-05-29 12:00 |
00:28:44.55 |
+55:21:21.1 |
HIP 2457 |
21.68 |
| 2026-05-30 00:00 |
00:28:46.69 |
+55:21:48.4 |
HIP 2457 |
21.46 |
| 2026-05-30 12:00 |
00:28:48.80 |
+55:22:15.7 |
HIP 2457 |
21.25 |
| 2026-05-31 00:00 |
00:28:50.88 |
+55:22:43.1 |
HIP 2457 |
21.06 |
| 2026-05-31 12:00 |
00:28:52.94 |
+55:23:10.5 |
HIP 2457 |
20.88 |
| 2026-06-01 00:00 |
00:28:54.97 |
+55:23:38.0 |
HIP 2457 |
20.73 |
| 2026-06-01 12:00 |
00:28:56.98 |
+55:24:05.5 |
HIP 2457 |
20.58 |
| 2026-06-02 00:00 |
00:28:58.95 |
+55:24:33.0 |
HIP 2457 |
20.46 |