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) |
| 2026-03-26 00:00 |
21:49:53.46 |
-81:52:31.1 |
HIP 107689 |
15.06 |
| 2026-03-26 12:00 |
21:50:13.45 |
-81:53:03.1 |
HIP 107689 |
14.65 |
| 2026-03-27 00:00 |
21:50:33.35 |
-81:53:35.5 |
HIP 107689 |
14.27 |
| 2026-03-27 12:00 |
21:50:53.16 |
-81:54:08.1 |
HIP 107689 |
13.93 |
| 2026-03-28 00:00 |
21:51:12.87 |
-81:54:41.1 |
HIP 107689 |
13.63 |
| 2026-03-28 12:00 |
21:51:32.48 |
-81:55:14.4 |
HIP 107689 |
13.38 |
| 2026-03-29 00:00 |
21:51:51.99 |
-81:55:48.0 |
HIP 107689 |
13.17 |
| 2026-03-29 12:00 |
21:52:11.41 |
-81:56:22.0 |
HIP 107689 |
13.02 |
| 2026-03-30 00:00 |
21:52:30.73 |
-81:56:56.2 |
HIP 107689 |
12.91 |
| 2026-03-30 12:00 |
21:52:49.95 |
-81:57:30.8 |
HIP 107689 |
12.85 |
| 2026-03-31 00:00 |
21:53:09.07 |
-81:58:05.7 |
HIP 107689 |
12.85 |
| 2026-03-31 12:00 |
21:53:28.08 |
-81:58:40.9 |
HIP 107689 |
12.90 |
| 2026-04-01 00:00 |
21:53:46.99 |
-81:59:16.4 |
HIP 107689 |
13.01 |
| 2026-04-01 12:00 |
21:54:05.80 |
-81:59:52.3 |
HIP 107689 |
13.16 |
| 2026-04-02 00:00 |
21:54:24.51 |
-82:00:28.4 |
HIP 107689 |
13.37 |
| 2026-04-02 12:00 |
21:54:43.11 |
-82:01:04.9 |
HIP 107689 |
13.62 |
| 2026-04-03 00:00 |
21:55:01.60 |
-82:01:41.6 |
HIP 107689 |
13.91 |
| 2026-04-03 12:00 |
21:55:19.99 |
-82:02:18.7 |
HIP 107689 |
14.25 |
| 2026-04-04 00:00 |
21:55:38.26 |
-82:02:56.1 |
HIP 107689 |
14.63 |
| 2026-04-04 12:00 |
21:55:56.43 |
-82:03:33.8 |
HIP 107689 |
15.04 |
| 2026-04-05 00:00 |
21:56:14.49 |
-82:04:11.8 |
HIP 107689 |
15.49 |
| 2026-04-05 12:00 |
21:56:32.43 |
-82:04:50.0 |
HIP 107689 |
15.97 |
| 2026-04-06 00:00 |
21:56:50.26 |
-82:05:28.6 |
HIP 107689 |
16.47 |
| 2026-04-06 12:00 |
21:57:07.98 |
-82:06:07.5 |
HIP 107689 |
17.00 |
| 2026-04-07 00:00 |
21:57:25.59 |
-82:06:46.7 |
HIP 107689 |
17.56 |
| 2026-04-07 12:00 |
21:57:43.07 |
-82:07:26.2 |
HIP 107689 |
18.13 |
| 2026-04-08 00:00 |
21:58:00.44 |
-82:08:06.0 |
HIP 107689 |
18.72 |
| 2026-04-08 12:00 |
21:58:17.69 |
-82:08:46.0 |
HIP 107689 |
19.33 |
| 2026-04-09 00:00 |
21:58:34.82 |
-82:09:26.4 |
HIP 107689 |
19.96 |
| 2026-04-09 12:00 |
21:58:51.83 |
-82:10:07.1 |
HIP 107689 |
20.60 |
| 2026-04-10 00:00 |
21:59:08.72 |
-82:10:48.0 |
HIP 107689 |
21.26 |
| 2026-04-10 12:00 |
21:59:25.49 |
-82:11:29.2 |
HIP 107689 |
21.92 |
| 2026-04-11 00:00 |
21:59:42.13 |
-82:12:10.8 |
HIP 107689 |
22.60 |
| 2026-04-11 12:00 |
21:59:58.64 |
-82:12:52.6 |
HIP 107689 |
23.29 |
| 2026-04-12 00:00 |
22:00:15.03 |
-82:13:34.7 |
HIP 107689 |
23.98 |
| 2026-04-12 12:00 |
22:00:31.28 |
-82:14:17.0 |
HIP 107689 |
24.69 |
| 2026-04-13 00:00 |
22:00:47.41 |
-82:14:59.7 |
HIP 107747 |
24.93 |
| 2026-04-13 12:00 |
22:01:03.41 |
-82:15:42.6 |
HIP 107747 |
25.09 |
| 2026-04-14 00:00 |
22:01:19.27 |
-82:16:25.8 |
HIP 107747 |
25.28 |
| 2026-04-14 12:00 |
22:01:35.01 |
-82:17:09.3 |
HIP 109280 |
24.72 |
| 2026-04-15 00:00 |
22:01:50.60 |
-82:17:53.1 |
HIP 109280 |
23.82 |
| 2026-04-15 12:00 |
22:02:06.06 |
-82:18:37.1 |
HIP 109280 |
22.93 |
| 2026-04-16 00:00 |
22:02:21.38 |
-82:19:21.4 |
HIP 109280 |
22.03 |