메타데이터
| 항목 |
값 |
| Designation |
P/2017 D1 (Fuls) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-06-28T07:02:48.923520Z |
| Orbit solution date (soln_date, UTC) |
2022-07-31T01:43:22Z |
| Obs used |
77 |
| NEO |
- |
| M1 |
17.100 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-08-01.0000000 |
| e |
0.44033406 |
| q (au) |
2.687798 |
| a (au) |
4.802504 |
| i (deg) |
20.732652 |
| Ω (om, deg) |
82.335656 |
| ω (w, deg) |
7.257406 |
| M (ma, deg) |
3.156564 |
밝기
산란 + 전체 선형
$$
M_a = (12.648 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.648 |
| n |
6.000 |
| gf |
0.936 |
| gb |
-0.920 |
| k |
0.995 |
| δ90 |
8.212 |
| 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) |
| 2026-06-01 00:00 |
02:56:51.75 |
+03:53:46.6 |
HIP 13682 |
13.11 |
| 2026-06-01 12:00 |
02:57:33.54 |
+03:57:36.0 |
HIP 13762 |
17.90 |
| 2026-06-02 00:00 |
02:58:15.34 |
+04:01:24.6 |
HIP 13762 |
26.40 |
| 2026-06-02 12:00 |
02:58:57.15 |
+04:05:12.5 |
HIP 13937 |
35.34 |
| 2026-06-03 00:00 |
02:59:38.96 |
+04:08:59.6 |
HIP 13937 |
37.96 |
| 2026-06-03 12:00 |
03:00:20.78 |
+04:12:46.0 |
HIP 14135 |
29.85 |
| 2026-06-04 00:00 |
03:01:02.61 |
+04:16:31.6 |
HIP 14143 |
20.45 |
| 2026-06-04 12:00 |
03:01:44.44 |
+04:20:16.5 |
HIP 14143 |
9.53 |
| 2026-06-05 00:00 |
03:02:26.28 |
+04:24:00.6 |
HIP 14143 |
2.99 |
| 2026-06-05 12:00 |
03:03:08.13 |
+04:27:44.0 |
HIP 14143 |
13.13 |
| 2026-06-06 00:00 |
03:03:49.98 |
+04:31:26.6 |
HIP 14143 |
24.10 |
| 2026-06-06 12:00 |
03:04:31.84 |
+04:35:08.5 |
HIP 14421 |
28.56 |
| 2026-06-07 00:00 |
03:05:13.70 |
+04:38:49.5 |
HIP 14421 |
17.80 |
| 2026-06-07 12:00 |
03:05:55.56 |
+04:42:29.8 |
HIP 14421 |
7.93 |
| 2026-06-08 00:00 |
03:06:37.43 |
+04:46:09.4 |
HIP 14421 |
7.33 |
| 2026-06-08 12:00 |
03:07:19.30 |
+04:49:48.1 |
HIP 14496 |
11.44 |
| 2026-06-09 00:00 |
03:08:01.18 |
+04:53:26.1 |
HIP 14496 |
13.92 |
| 2026-06-09 12:00 |
03:08:43.05 |
+04:57:03.3 |
HIP 14676 |
20.11 |
| 2026-06-10 00:00 |
03:09:24.93 |
+05:00:39.7 |
HIP 14676 |
11.86 |
| 2026-06-10 12:00 |
03:10:06.81 |
+05:04:15.4 |
HIP 14676 |
10.97 |
| 2026-06-11 00:00 |
03:10:48.69 |
+05:07:50.2 |
HIP 14676 |
18.54 |
| 2026-06-11 12:00 |
03:11:30.56 |
+05:11:24.3 |
HIP 14829 |
23.93 |
| 2026-06-12 00:00 |
03:12:12.44 |
+05:14:57.5 |
HIP 14829 |
23.00 |
| 2026-06-12 12:00 |
03:12:54.31 |
+05:18:30.0 |
HIP 14829 |
26.98 |
| 2026-06-13 00:00 |
03:13:36.19 |
+05:22:01.7 |
HIP 14829 |
34.20 |
| 2026-06-13 12:00 |
03:14:18.05 |
+05:25:32.5 |
HIP 15157 |
29.53 |
| 2026-06-14 00:00 |
03:14:59.92 |
+05:29:02.6 |
HIP 15157 |
22.08 |
| 2026-06-14 12:00 |
03:15:41.78 |
+05:32:31.8 |
HIP 15157 |
18.59 |
| 2026-06-15 00:00 |
03:16:23.63 |
+05:36:00.3 |
HIP 15299 |
17.27 |
| 2026-06-15 12:00 |
03:17:05.48 |
+05:39:27.9 |
HIP 15299 |
7.10 |
| 2026-06-16 00:00 |
03:17:47.32 |
+05:42:54.7 |
HIP 15299 |
6.60 |
| 2026-06-16 12:00 |
03:18:29.16 |
+05:46:20.7 |
HIP 15397 |
2.51 |
| 2026-06-17 00:00 |
03:19:10.98 |
+05:49:45.9 |
HIP 15397 |
10.10 |
| 2026-06-17 12:00 |
03:19:52.80 |
+05:53:10.3 |
HIP 15542 |
20.89 |
| 2026-06-18 00:00 |
03:20:34.61 |
+05:56:33.8 |
HIP 15542 |
17.40 |
| 2026-06-18 12:00 |
03:21:16.40 |
+05:59:56.6 |
HIP 15670 |
20.20 |
| 2026-06-19 00:00 |
03:21:58.19 |
+06:03:18.5 |
HIP 15670 |
21.38 |
| 2026-06-19 12:00 |
03:22:39.96 |
+06:06:39.6 |
HIP 15670 |
27.29 |
| 2026-06-20 00:00 |
03:23:21.73 |
+06:09:59.9 |
HIP 15670 |
35.63 |
| 2026-06-20 12:00 |
03:24:03.48 |
+06:13:19.3 |
HIP 15978 |
30.38 |
| 2026-06-21 00:00 |
03:24:45.21 |
+06:16:38.0 |
HIP 15978 |
25.21 |
| 2026-06-21 12:00 |
03:25:26.94 |
+06:19:55.8 |
HIP 15978 |
24.19 |
| 2026-06-22 00:00 |
03:26:08.65 |
+06:23:12.8 |
HIP 16050 |
18.48 |