412P/WISE
메타데이터
| 항목 |
값 |
| Designation |
412P/WISE |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-06-14T00:01:38.400960Z |
| Orbit solution date (soln_date, UTC) |
2025-04-09T14:05:32Z |
| Obs used |
74 |
| NEO |
- |
| M1 |
15.200 |
| K1 |
20.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2020-12-19T10:55:12.864000Z |
| Discovery magnitude (MPC) |
20.10 T |
| Discovery observatory (MPC) |
G37 · Lowell Discovery Telescope |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-11-03.0000000 |
| e |
0.48090203 |
| q (au) |
1.612615 |
| a (au) |
3.106572 |
| i (deg) |
8.937369 |
| Ω (om, deg) |
0.856614 |
| ω (w, deg) |
155.962875 |
| M (ma, deg) |
254.157519 |
밝기
산란 + 전체 선형
$$
M_a = (15.724 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.724 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.999 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
04:19:43.18 |
+34:52:32.6 |
HIP 20252 |
20.40 |
| 2026-02-03 12:00 |
04:20:01.71 |
+34:50:22.0 |
HIP 20252 |
17.03 |
| 2026-02-04 00:00 |
04:20:20.92 |
+34:48:12.2 |
HIP 20252 |
14.22 |
| 2026-02-04 12:00 |
04:20:40.81 |
+34:46:03.5 |
HIP 20252 |
12.50 |
| 2026-02-05 00:00 |
04:21:01.36 |
+34:43:55.6 |
HIP 20340 |
10.98 |
| 2026-02-05 12:00 |
04:21:22.59 |
+34:41:48.8 |
HIP 20340 |
7.60 |
| 2026-02-06 00:00 |
04:21:44.48 |
+34:39:42.9 |
HIP 20340 |
6.55 |
| 2026-02-06 12:00 |
04:22:07.03 |
+34:37:37.9 |
HIP 20340 |
8.94 |
| 2026-02-07 00:00 |
04:22:30.24 |
+34:35:34.0 |
HIP 20340 |
13.13 |
| 2026-02-07 12:00 |
04:22:54.10 |
+34:33:30.9 |
HIP 20340 |
17.99 |
| 2026-02-08 00:00 |
04:23:18.62 |
+34:31:28.9 |
HIP 20570 |
18.58 |
| 2026-02-08 12:00 |
04:23:43.79 |
+34:29:27.7 |
HIP 20570 |
13.55 |
| 2026-02-09 00:00 |
04:24:09.60 |
+34:27:27.5 |
HIP 20573 |
9.09 |
| 2026-02-09 12:00 |
04:24:36.05 |
+34:25:28.3 |
HIP 20573 |
6.74 |
| 2026-02-10 00:00 |
04:25:03.15 |
+34:23:30.0 |
HIP 20573 |
8.82 |
| 2026-02-10 12:00 |
04:25:30.88 |
+34:21:32.6 |
HIP 20573 |
13.58 |
| 2026-02-11 00:00 |
04:25:59.24 |
+34:19:36.1 |
HIP 20573 |
19.21 |
| 2026-02-11 12:00 |
04:26:28.24 |
+34:17:40.5 |
HIP 20767 |
21.58 |
| 2026-02-12 00:00 |
04:26:57.85 |
+34:15:45.9 |
HIP 20767 |
18.66 |
| 2026-02-12 12:00 |
04:27:28.10 |
+34:13:52.1 |
HIP 20883 |
13.34 |
| 2026-02-13 00:00 |
04:27:58.96 |
+34:11:59.2 |
HIP 20883 |
6.82 |
| 2026-02-13 12:00 |
04:28:30.43 |
+34:10:07.1 |
HIP 20883 |
1.86 |
| 2026-02-14 00:00 |
04:29:02.52 |
+34:08:15.9 |
HIP 20883 |
7.32 |
| 2026-02-14 12:00 |
04:29:35.22 |
+34:06:25.6 |
HIP 20883 |
14.21 |
| 2026-02-15 00:00 |
04:30:08.52 |
+34:04:36.0 |
HIP 20883 |
21.30 |
| 2026-02-15 12:00 |
04:30:42.43 |
+34:02:47.3 |
HIP 21197 |
25.11 |
| 2026-02-16 00:00 |
04:31:16.93 |
+34:00:59.3 |
HIP 21197 |
18.81 |
| 2026-02-16 12:00 |
04:31:52.03 |
+33:59:12.2 |
HIP 21197 |
13.51 |
| 2026-02-17 00:00 |
04:32:27.72 |
+33:57:25.8 |
HIP 21197 |
11.07 |
| 2026-02-17 12:00 |
04:33:04.00 |
+33:55:40.1 |
HIP 21197 |
13.37 |
| 2026-02-18 00:00 |
04:33:40.86 |
+33:53:55.1 |
HIP 21285 |
8.46 |
| 2026-02-18 12:00 |
04:34:18.30 |
+33:52:10.9 |
HIP 21285 |
6.47 |
| 2026-02-19 00:00 |
04:34:56.32 |
+33:50:27.3 |
HIP 21285 |
11.91 |
| 2026-02-19 12:00 |
04:35:34.91 |
+33:48:44.4 |
HIP 21285 |
19.42 |
| 2026-02-20 00:00 |
04:36:14.07 |
+33:47:02.2 |
HIP 21454 |
25.62 |
| 2026-02-20 12:00 |
04:36:53.79 |
+33:45:20.5 |
HIP 21454 |
27.87 |
| 2026-02-21 00:00 |
04:37:34.07 |
+33:43:39.4 |
HIP 21454 |
32.27 |
| 2026-02-21 12:00 |
04:38:14.91 |
+33:41:59.0 |
HIP 21697 |
30.22 |
| 2026-02-22 00:00 |
04:38:56.30 |
+33:40:19.0 |
HIP 21697 |
28.36 |
| 2026-02-22 12:00 |
04:39:38.23 |
+33:38:39.6 |
HIP 21697 |
29.13 |
| 2026-02-23 00:00 |
04:40:20.71 |
+33:37:00.7 |
HIP 21742 |
29.10 |
| 2026-02-23 12:00 |
04:41:03.73 |
+33:35:22.3 |
HIP 21898 |
28.39 |
| 2026-02-24 00:00 |
04:41:47.28 |
+33:33:44.3 |
HIP 21898 |
25.52 |