메타데이터
| 항목 |
값 |
| Designation |
337P/WISE |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-07-13T11:32:32.386560Z |
| Orbit solution date (soln_date, UTC) |
2024-01-04T23:44:02Z |
| Obs used |
386 |
| NEO |
- |
| M1 |
17.300 |
| K1 |
10.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-08-21.0000000 |
| e |
0.49688903 |
| q (au) |
1.654224 |
| a (au) |
3.287990 |
| i (deg) |
15.369108 |
| Ω (om, deg) |
106.080434 |
| ω (w, deg) |
160.917541 |
| M (ma, deg) |
127.046558 |
밝기
산란 + 전체 선형
$$
M_a = (16.897 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.897 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.512 |
| 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 |
07:54:31.82 |
+23:51:38.5 |
HIP 38603 |
21.78 |
| 2026-07-29 12:00 |
07:55:02.46 |
+23:50:52.3 |
HIP 38755 |
16.64 |
| 2026-07-30 00:00 |
07:55:33.09 |
+23:50:05.9 |
HIP 38755 |
10.90 |
| 2026-07-30 12:00 |
07:56:03.71 |
+23:49:19.4 |
HIP 38755 |
7.74 |
| 2026-07-31 00:00 |
07:56:34.32 |
+23:48:32.6 |
HIP 38755 |
10.02 |
| 2026-07-31 12:00 |
07:57:04.91 |
+23:47:45.7 |
HIP 38755 |
15.50 |
| 2026-08-01 00:00 |
07:57:35.50 |
+23:46:58.5 |
HIP 38755 |
21.89 |
| 2026-08-01 12:00 |
07:58:06.07 |
+23:46:11.2 |
HIP 38755 |
28.58 |
| 2026-08-02 00:00 |
07:58:36.64 |
+23:45:23.7 |
HIP 39018 |
29.06 |
| 2026-08-02 12:00 |
07:59:07.19 |
+23:44:36.0 |
HIP 39194 |
27.73 |
| 2026-08-03 00:00 |
07:59:37.72 |
+23:43:48.1 |
HIP 39194 |
20.96 |
| 2026-08-03 12:00 |
08:00:08.25 |
+23:43:00.0 |
HIP 39194 |
14.46 |
| 2026-08-04 00:00 |
08:00:38.75 |
+23:42:11.8 |
HIP 39194 |
8.80 |
| 2026-08-04 12:00 |
08:01:09.25 |
+23:41:23.4 |
HIP 39194 |
6.69 |
| 2026-08-05 00:00 |
08:01:39.72 |
+23:40:34.9 |
HIP 39194 |
10.52 |
| 2026-08-05 12:00 |
08:02:10.18 |
+23:39:46.2 |
HIP 39194 |
16.60 |
| 2026-08-06 00:00 |
08:02:40.63 |
+23:38:57.3 |
HIP 39235 |
22.56 |
| 2026-08-06 12:00 |
08:03:11.05 |
+23:38:08.3 |
HIP 39465 |
17.61 |
| 2026-08-07 00:00 |
08:03:41.46 |
+23:37:19.1 |
HIP 39465 |
13.57 |
| 2026-08-07 12:00 |
08:04:11.85 |
+23:36:29.8 |
HIP 39546 |
9.28 |
| 2026-08-08 00:00 |
08:04:42.22 |
+23:35:40.4 |
HIP 39546 |
2.59 |
| 2026-08-08 12:00 |
08:05:12.57 |
+23:34:50.8 |
HIP 39546 |
5.05 |
| 2026-08-09 00:00 |
08:05:42.90 |
+23:34:01.0 |
HIP 39546 |
11.92 |
| 2026-08-09 12:00 |
08:06:13.20 |
+23:33:11.2 |
HIP 39546 |
18.89 |
| 2026-08-10 00:00 |
08:06:43.49 |
+23:32:21.2 |
HIP 39546 |
25.86 |
| 2026-08-10 12:00 |
08:07:13.75 |
+23:31:31.1 |
HIP 39790 |
30.79 |
| 2026-08-11 00:00 |
08:07:43.98 |
+23:30:40.9 |
HIP 39790 |
30.45 |
| 2026-08-11 12:00 |
08:08:14.19 |
+23:29:50.6 |
HIP 39790 |
31.69 |
| 2026-08-12 00:00 |
08:08:44.38 |
+23:29:00.1 |
HIP 39790 |
34.32 |
| 2026-08-12 12:00 |
08:09:14.54 |
+23:28:09.6 |
HIP 40102 |
31.24 |
| 2026-08-13 00:00 |
08:09:44.67 |
+23:27:19.0 |
HIP 40102 |
24.37 |
| 2026-08-13 12:00 |
08:10:14.77 |
+23:26:28.3 |
HIP 40102 |
17.59 |
| 2026-08-14 00:00 |
08:10:44.85 |
+23:25:37.5 |
HIP 40102 |
11.03 |
| 2026-08-14 12:00 |
08:11:14.89 |
+23:24:46.6 |
HIP 40102 |
5.52 |
| 2026-08-15 00:00 |
08:11:44.91 |
+23:23:55.6 |
HIP 40102 |
5.97 |
| 2026-08-15 12:00 |
08:12:14.89 |
+23:23:04.6 |
HIP 40102 |
11.70 |
| 2026-08-16 00:00 |
08:12:44.84 |
+23:22:13.5 |
HIP 40102 |
18.28 |
| 2026-08-16 12:00 |
08:13:14.76 |
+23:21:22.3 |
HIP 40293 |
14.50 |
| 2026-08-17 00:00 |
08:13:44.65 |
+23:20:31.1 |
HIP 40293 |
12.27 |
| 2026-08-17 12:00 |
08:14:14.50 |
+23:19:39.9 |
HIP 40293 |
13.66 |
| 2026-08-18 00:00 |
08:14:44.32 |
+23:18:48.5 |
HIP 40293 |
17.83 |
| 2026-08-18 12:00 |
08:15:14.11 |
+23:17:57.2 |
HIP 40293 |
23.33 |
| 2026-08-19 00:00 |
08:15:43.85 |
+23:17:05.8 |
HIP 40529 |
23.44 |