메타데이터
| 항목 |
값 |
| Designation |
P/2010 D2 (WISE) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-03-05T03:52:32.606400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:40Z |
| Obs used |
66 |
| NEO |
- |
| M1 |
14.400 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2010-09-01.0000000 |
| e |
0.45302440 |
| q (au) |
3.659054 |
| a (au) |
6.689610 |
| i (deg) |
57.176974 |
| Ω (om, deg) |
319.835860 |
| ω (w, deg) |
120.068180 |
| M (ma, deg) |
10.244377 |
밝기
산란 + 전체 선형
$$
M_a = (13.079 + 2.282\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.079 |
| n |
2.282 |
| gf |
0.888 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
4.185 |
| 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) |
| 2026-05-12 00:00 |
23:28:55.68 |
+40:04:53.6 |
HIP 115880 |
27.91 |
| 2026-05-12 12:00 |
23:29:18.83 |
+40:11:59.1 |
HIP 116093 |
24.13 |
| 2026-05-13 00:00 |
23:29:41.91 |
+40:19:05.6 |
HIP 116093 |
20.71 |
| 2026-05-13 12:00 |
23:30:04.91 |
+40:26:12.9 |
HIP 116093 |
20.41 |
| 2026-05-14 00:00 |
23:30:27.83 |
+40:33:21.2 |
HIP 116093 |
23.36 |
| 2026-05-14 12:00 |
23:30:50.66 |
+40:40:30.4 |
HIP 116162 |
21.88 |
| 2026-05-15 00:00 |
23:31:13.42 |
+40:47:40.5 |
HIP 116162 |
13.91 |
| 2026-05-15 12:00 |
23:31:36.09 |
+40:54:51.5 |
HIP 116162 |
6.96 |
| 2026-05-16 00:00 |
23:31:58.68 |
+41:02:03.5 |
HIP 116162 |
6.62 |
| 2026-05-16 12:00 |
23:32:21.19 |
+41:09:16.3 |
HIP 116162 |
13.40 |
| 2026-05-17 00:00 |
23:32:43.61 |
+41:16:30.0 |
HIP 116162 |
21.35 |
| 2026-05-17 12:00 |
23:33:05.94 |
+41:23:44.5 |
HIP 116267 |
15.17 |
| 2026-05-18 00:00 |
23:33:28.18 |
+41:31:00.0 |
HIP 116267 |
7.28 |
| 2026-05-18 12:00 |
23:33:50.33 |
+41:38:16.2 |
HIP 116267 |
3.97 |
| 2026-05-19 00:00 |
23:34:12.39 |
+41:45:33.4 |
HIP 116267 |
10.88 |
| 2026-05-19 12:00 |
23:34:34.35 |
+41:52:51.4 |
HIP 116443 |
13.94 |
| 2026-05-20 00:00 |
23:34:56.23 |
+42:00:10.3 |
HIP 116443 |
9.12 |
| 2026-05-20 12:00 |
23:35:18.01 |
+42:07:29.9 |
HIP 116443 |
10.61 |
| 2026-05-21 00:00 |
23:35:39.69 |
+42:14:50.5 |
HIP 116443 |
16.82 |
| 2026-05-21 12:00 |
23:36:01.28 |
+42:22:11.8 |
HIP 116485 |
16.66 |
| 2026-05-22 00:00 |
23:36:22.76 |
+42:29:34.0 |
HIP 116485 |
9.36 |
| 2026-05-22 12:00 |
23:36:44.15 |
+42:36:56.9 |
HIP 116485 |
6.10 |
| 2026-05-23 00:00 |
23:37:05.44 |
+42:44:20.7 |
HIP 116485 |
11.24 |
| 2026-05-23 12:00 |
23:37:26.63 |
+42:51:45.3 |
HIP 116626 |
14.58 |
| 2026-05-24 00:00 |
23:37:47.71 |
+42:59:10.7 |
HIP 116626 |
6.22 |
| 2026-05-24 12:00 |
23:38:08.69 |
+43:06:36.9 |
HIP 116626 |
2.15 |
| 2026-05-25 00:00 |
23:38:29.57 |
+43:14:03.8 |
HIP 116631 |
4.39 |
| 2026-05-25 12:00 |
23:38:50.34 |
+43:21:31.6 |
HIP 116746 |
8.74 |
| 2026-05-26 00:00 |
23:39:11.00 |
+43:29:00.1 |
HIP 116746 |
10.26 |
| 2026-05-26 12:00 |
23:39:31.56 |
+43:36:29.4 |
HIP 116770 |
12.71 |
| 2026-05-27 00:00 |
23:39:52.00 |
+43:43:59.4 |
HIP 116770 |
4.46 |
| 2026-05-27 12:00 |
23:40:12.33 |
+43:51:30.2 |
HIP 116770 |
4.25 |
| 2026-05-28 00:00 |
23:40:32.56 |
+43:59:01.8 |
HIP 116770 |
12.49 |
| 2026-05-28 12:00 |
23:40:52.66 |
+44:06:34.1 |
HIP 116805 |
14.39 |
| 2026-05-29 00:00 |
23:41:12.66 |
+44:14:07.2 |
HIP 116805 |
10.46 |
| 2026-05-29 12:00 |
23:41:32.53 |
+44:21:41.0 |
HIP 116805 |
12.28 |
| 2026-05-30 00:00 |
23:41:52.29 |
+44:29:15.5 |
HIP 116940 |
16.54 |
| 2026-05-30 12:00 |
23:42:11.94 |
+44:36:50.8 |
HIP 116940 |
8.49 |
| 2026-05-31 00:00 |
23:42:31.46 |
+44:44:26.7 |
HIP 116940 |
3.18 |
| 2026-05-31 12:00 |
23:42:50.85 |
+44:52:03.4 |
HIP 116983 |
1.75 |
| 2026-06-01 00:00 |
23:43:10.13 |
+44:59:40.9 |
HIP 116983 |
6.61 |
| 2026-06-01 12:00 |
23:43:29.28 |
+45:07:19.0 |
HIP 116983 |
14.96 |
| 2026-06-02 00:00 |
23:43:48.31 |
+45:14:57.8 |
HIP 116941 |
22.62 |