메타데이터
| 항목 |
값 |
| Designation |
P/2018 V5 (Trujillo-Sheppard) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-10-03T20:45:02.079360Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:48Z |
| Obs used |
21 |
| NEO |
- |
| M1 |
6.400 |
| K1 |
19.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2018-11-06T12:29:37.939200Z |
| Discovery magnitude (MPC) |
22.21 G |
| Discovery observatory (MPC) |
T09 · Subaru Telescope, Maunakea |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-08-01.0000000 |
| e |
0.47462980 |
| q (au) |
4.707643 |
| a (au) |
8.960620 |
| i (deg) |
10.580193 |
| Ω (om, deg) |
171.328440 |
| ω (w, deg) |
260.805603 |
| M (ma, deg) |
357.653302 |
밝기
산란 + 전체 선형
$$
M_a = (10.719 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.719 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.584 |
| 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) |
| 2026-09-20 00:00 |
14:24:46.41 |
-06:31:53.3 |
HIP 70433 |
12.27 |
| 2026-09-20 12:00 |
14:24:55.49 |
-06:32:47.0 |
HIP 70433 |
12.38 |
| 2026-09-21 00:00 |
14:25:04.61 |
-06:33:40.8 |
HIP 70433 |
12.95 |
| 2026-09-21 12:00 |
14:25:13.77 |
-06:34:34.6 |
HIP 70433 |
13.94 |
| 2026-09-22 00:00 |
14:25:22.97 |
-06:35:28.5 |
HIP 70433 |
15.27 |
| 2026-09-22 12:00 |
14:25:32.21 |
-06:36:22.4 |
HIP 70433 |
16.87 |
| 2026-09-23 00:00 |
14:25:41.50 |
-06:37:16.4 |
HIP 70433 |
18.66 |
| 2026-09-23 12:00 |
14:25:50.83 |
-06:38:10.5 |
HIP 70433 |
20.61 |
| 2026-09-24 00:00 |
14:26:00.19 |
-06:39:04.6 |
HIP 70433 |
22.67 |
| 2026-09-24 12:00 |
14:26:09.60 |
-06:39:58.7 |
HIP 70433 |
24.82 |
| 2026-09-25 00:00 |
14:26:19.05 |
-06:40:52.9 |
HIP 70433 |
27.04 |
| 2026-09-25 12:00 |
14:26:28.53 |
-06:41:47.2 |
HIP 70433 |
29.31 |
| 2026-09-26 00:00 |
14:26:38.05 |
-06:42:41.4 |
HIP 70433 |
31.64 |
| 2026-09-26 12:00 |
14:26:47.62 |
-06:43:35.8 |
HIP 70794 |
30.19 |
| 2026-09-27 00:00 |
14:26:57.21 |
-06:44:30.1 |
HIP 70794 |
27.64 |
| 2026-09-27 12:00 |
14:27:06.85 |
-06:45:24.5 |
HIP 70794 |
25.08 |
| 2026-09-28 00:00 |
14:27:16.52 |
-06:46:18.9 |
HIP 70794 |
22.51 |
| 2026-09-28 12:00 |
14:27:26.24 |
-06:47:13.4 |
HIP 70794 |
19.94 |
| 2026-09-29 00:00 |
14:27:35.98 |
-06:48:07.8 |
HIP 70794 |
17.35 |
| 2026-09-29 12:00 |
14:27:45.76 |
-06:49:02.3 |
HIP 70794 |
14.76 |
| 2026-09-30 00:00 |
14:27:55.58 |
-06:49:56.8 |
HIP 70794 |
12.16 |
| 2026-09-30 12:00 |
14:28:05.44 |
-06:50:51.3 |
HIP 70794 |
9.55 |
| 2026-10-01 00:00 |
14:28:15.32 |
-06:51:45.9 |
HIP 70794 |
6.93 |
| 2026-10-01 12:00 |
14:28:25.24 |
-06:52:40.4 |
HIP 70794 |
4.31 |
| 2026-10-02 00:00 |
14:28:35.20 |
-06:53:35.0 |
HIP 70794 |
1.68 |
| 2026-10-02 12:00 |
14:28:45.19 |
-06:54:29.5 |
HIP 70794 |
0.98 |
| 2026-10-03 00:00 |
14:28:55.21 |
-06:55:24.1 |
HIP 70794 |
3.62 |
| 2026-10-03 12:00 |
14:29:05.27 |
-06:56:18.6 |
HIP 70794 |
6.27 |
| 2026-10-04 00:00 |
14:29:15.35 |
-06:57:13.2 |
HIP 70794 |
8.94 |
| 2026-10-04 12:00 |
14:29:25.47 |
-06:58:07.8 |
HIP 70794 |
11.61 |
| 2026-10-05 00:00 |
14:29:35.62 |
-06:59:02.3 |
HIP 70913 |
9.66 |
| 2026-10-05 12:00 |
14:29:45.81 |
-06:59:56.8 |
HIP 70913 |
7.07 |
| 2026-10-06 00:00 |
14:29:56.02 |
-07:00:51.3 |
HIP 70913 |
4.59 |
| 2026-10-06 12:00 |
14:30:06.26 |
-07:01:45.8 |
HIP 70913 |
2.58 |
| 2026-10-07 00:00 |
14:30:16.53 |
-07:02:40.3 |
HIP 70913 |
2.60 |
| 2026-10-07 12:00 |
14:30:26.83 |
-07:03:34.8 |
HIP 70913 |
4.65 |
| 2026-10-08 00:00 |
14:30:37.16 |
-07:04:29.2 |
HIP 70913 |
7.16 |
| 2026-10-08 12:00 |
14:30:47.52 |
-07:05:23.6 |
HIP 70913 |
9.79 |
| 2026-10-09 00:00 |
14:30:57.90 |
-07:06:17.9 |
HIP 70913 |
12.47 |
| 2026-10-09 12:00 |
14:31:08.32 |
-07:07:12.2 |
HIP 70913 |
15.17 |
| 2026-10-10 00:00 |
14:31:18.75 |
-07:08:06.5 |
HIP 70913 |
17.89 |
| 2026-10-10 12:00 |
14:31:29.22 |
-07:09:00.8 |
HIP 71130 |
20.21 |
| 2026-10-11 00:00 |
14:31:39.71 |
-07:09:54.9 |
HIP 71130 |
17.50 |