메타데이터
| 항목 |
값 |
| Designation |
C/2010 L4 (WISE) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-02-23T15:43:33.841920Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:44Z |
| Obs used |
98 |
| NEO |
- |
| M1 |
12.900 |
| K1 |
7.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2010-07-08.0000000 |
| e |
0.96471201 |
| q (au) |
2.825536 |
| a (au) |
80.070752 |
| i (deg) |
102.818083 |
| Ω (om, deg) |
125.540169 |
| ω (w, deg) |
95.768618 |
| M (ma, deg) |
0.184805 |
밝기
산란 + 전체 선형
$$
M_a = (8.939 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.939 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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) |
| 2026-09-20 00:00 |
20:25:07.21 |
-84:54:10.2 |
HIP 98708 |
29.54 |
| 2026-09-20 12:00 |
20:24:43.76 |
-84:53:36.6 |
HIP 98708 |
29.07 |
| 2026-09-21 00:00 |
20:24:20.68 |
-84:53:02.7 |
HIP 98708 |
28.62 |
| 2026-09-21 12:00 |
20:23:57.97 |
-84:52:28.4 |
HIP 98708 |
28.20 |
| 2026-09-22 00:00 |
20:23:35.62 |
-84:51:53.9 |
HIP 98708 |
27.79 |
| 2026-09-22 12:00 |
20:23:13.65 |
-84:51:19.0 |
HIP 98708 |
27.41 |
| 2026-09-23 00:00 |
20:22:52.05 |
-84:50:43.8 |
HIP 98708 |
27.05 |
| 2026-09-23 12:00 |
20:22:30.82 |
-84:50:08.3 |
HIP 98708 |
26.71 |
| 2026-09-24 00:00 |
20:22:09.96 |
-84:49:32.5 |
HIP 98708 |
26.40 |
| 2026-09-24 12:00 |
20:21:49.48 |
-84:48:56.5 |
HIP 98708 |
26.11 |
| 2026-09-25 00:00 |
20:21:29.37 |
-84:48:20.1 |
HIP 98708 |
25.85 |
| 2026-09-25 12:00 |
20:21:09.62 |
-84:47:43.4 |
HIP 98708 |
25.62 |
| 2026-09-26 00:00 |
20:20:50.25 |
-84:47:06.5 |
HIP 98708 |
25.42 |
| 2026-09-26 12:00 |
20:20:31.26 |
-84:46:29.2 |
HIP 98708 |
25.25 |
| 2026-09-27 00:00 |
20:20:12.63 |
-84:45:51.7 |
HIP 98708 |
25.10 |
| 2026-09-27 12:00 |
20:19:54.38 |
-84:45:14.0 |
HIP 98708 |
24.99 |
| 2026-09-28 00:00 |
20:19:36.49 |
-84:44:36.0 |
HIP 98708 |
24.90 |
| 2026-09-28 12:00 |
20:19:18.98 |
-84:43:57.7 |
HIP 98708 |
24.85 |
| 2026-09-29 00:00 |
20:19:01.84 |
-84:43:19.1 |
HIP 98708 |
24.82 |
| 2026-09-29 12:00 |
20:18:45.06 |
-84:42:40.4 |
HIP 98708 |
24.83 |
| 2026-09-30 00:00 |
20:18:28.66 |
-84:42:01.3 |
HIP 98708 |
24.87 |
| 2026-09-30 12:00 |
20:18:12.63 |
-84:41:22.1 |
HIP 98708 |
24.93 |
| 2026-10-01 00:00 |
20:17:56.96 |
-84:40:42.6 |
HIP 98708 |
25.03 |
| 2026-10-01 12:00 |
20:17:41.67 |
-84:40:02.8 |
HIP 98708 |
25.16 |
| 2026-10-02 00:00 |
20:17:26.74 |
-84:39:22.9 |
HIP 98708 |
25.32 |
| 2026-10-02 12:00 |
20:17:12.18 |
-84:38:42.7 |
HIP 98708 |
25.50 |
| 2026-10-03 00:00 |
20:16:57.98 |
-84:38:02.3 |
HIP 98708 |
25.72 |
| 2026-10-03 12:00 |
20:16:44.15 |
-84:37:21.7 |
HIP 98708 |
25.96 |
| 2026-10-04 00:00 |
20:16:30.69 |
-84:36:40.8 |
HIP 98708 |
26.23 |
| 2026-10-04 12:00 |
20:16:17.59 |
-84:35:59.8 |
HIP 98509 |
25.86 |
| 2026-10-05 00:00 |
20:16:04.85 |
-84:35:18.6 |
HIP 98509 |
25.28 |
| 2026-10-05 12:00 |
20:15:52.48 |
-84:34:37.2 |
HIP 98509 |
24.71 |
| 2026-10-06 00:00 |
20:15:40.47 |
-84:33:55.5 |
HIP 98509 |
24.15 |
| 2026-10-06 12:00 |
20:15:28.82 |
-84:33:13.8 |
HIP 98509 |
23.61 |
| 2026-10-07 00:00 |
20:15:17.53 |
-84:32:31.8 |
HIP 98509 |
23.09 |
| 2026-10-07 12:00 |
20:15:06.60 |
-84:31:49.6 |
HIP 98509 |
22.59 |
| 2026-10-08 00:00 |
20:14:56.03 |
-84:31:07.3 |
HIP 98509 |
22.11 |
| 2026-10-08 12:00 |
20:14:45.81 |
-84:30:24.8 |
HIP 98509 |
21.64 |
| 2026-10-09 00:00 |
20:14:35.96 |
-84:29:42.2 |
HIP 98509 |
21.21 |
| 2026-10-09 12:00 |
20:14:26.45 |
-84:28:59.3 |
HIP 98509 |
20.79 |
| 2026-10-10 00:00 |
20:14:17.30 |
-84:28:16.4 |
HIP 98509 |
20.41 |
| 2026-10-10 12:00 |
20:14:08.51 |
-84:27:33.3 |
HIP 98509 |
20.05 |
| 2026-10-11 00:00 |
20:14:00.06 |
-84:26:50.0 |
HIP 98509 |
19.71 |