메타데이터
| 항목 |
값 |
| Designation |
C/2023 V5 (Leonard) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2023-12-13T21:25:38.058240Z |
| Orbit solution date (soln_date, UTC) |
2024-04-13T16:42:53Z |
| Obs used |
148 |
| NEO |
- |
| M1 |
21.400 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-11-06T03:26:34.857600Z |
| Discovery magnitude (MPC) |
17.40 G |
| Discovery observatory (MPC) |
703 · Catalina Sky Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2023-11-07.0000000 |
| e |
1.00813865 |
| q (au) |
0.846019 |
| a (au) |
-103.950734 |
| i (deg) |
73.557595 |
| Ω (om, deg) |
31.524093 |
| ω (w, deg) |
56.987549 |
| M (ma, deg) |
-0.034309 |
밝기
산란 + 전체 선형
$$
M_a = (20.000 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
20.000 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
13:39:37.67 |
-34:53:36.1 |
HIP 66486 |
24.68 |
| 2026-05-12 12:00 |
13:39:23.43 |
-34:52:26.0 |
HIP 66486 |
22.63 |
| 2026-05-13 00:00 |
13:39:09.27 |
-34:51:15.5 |
HIP 66486 |
20.87 |
| 2026-05-13 12:00 |
13:38:55.19 |
-34:50:04.5 |
HIP 66486 |
19.48 |
| 2026-05-14 00:00 |
13:38:41.20 |
-34:48:53.2 |
HIP 66486 |
18.53 |
| 2026-05-14 12:00 |
13:38:27.29 |
-34:47:41.4 |
HIP 66486 |
18.07 |
| 2026-05-15 00:00 |
13:38:13.46 |
-34:46:29.3 |
HIP 66486 |
18.16 |
| 2026-05-15 12:00 |
13:37:59.73 |
-34:45:16.8 |
HIP 66463 |
18.41 |
| 2026-05-16 00:00 |
13:37:46.08 |
-34:44:03.9 |
HIP 66463 |
19.02 |
| 2026-05-16 12:00 |
13:37:32.52 |
-34:42:50.6 |
HIP 66405 |
17.11 |
| 2026-05-17 00:00 |
13:37:19.05 |
-34:41:37.1 |
HIP 66405 |
14.77 |
| 2026-05-17 12:00 |
13:37:05.68 |
-34:40:23.2 |
HIP 66405 |
12.71 |
| 2026-05-18 00:00 |
13:36:52.40 |
-34:39:08.9 |
HIP 66405 |
11.09 |
| 2026-05-18 12:00 |
13:36:39.21 |
-34:37:54.4 |
HIP 66405 |
10.12 |
| 2026-05-19 00:00 |
13:36:26.12 |
-34:36:39.6 |
HIP 66405 |
9.96 |
| 2026-05-19 12:00 |
13:36:13.12 |
-34:35:24.5 |
HIP 66405 |
10.65 |
| 2026-05-20 00:00 |
13:36:00.22 |
-34:34:09.1 |
HIP 66304 |
9.30 |
| 2026-05-20 12:00 |
13:35:47.42 |
-34:32:53.5 |
HIP 66304 |
7.90 |
| 2026-05-21 00:00 |
13:35:34.72 |
-34:31:37.7 |
HIP 66304 |
7.45 |
| 2026-05-21 12:00 |
13:35:22.12 |
-34:30:21.6 |
HIP 66304 |
8.09 |
| 2026-05-22 00:00 |
13:35:09.62 |
-34:29:05.3 |
HIP 66304 |
9.60 |
| 2026-05-22 12:00 |
13:34:57.22 |
-34:27:48.8 |
HIP 66211 |
9.77 |
| 2026-05-23 00:00 |
13:34:44.93 |
-34:26:32.0 |
HIP 66211 |
6.93 |
| 2026-05-23 12:00 |
13:34:32.73 |
-34:25:15.1 |
HIP 66211 |
4.11 |
| 2026-05-24 00:00 |
13:34:20.65 |
-34:23:58.1 |
HIP 66211 |
1.31 |
| 2026-05-24 12:00 |
13:34:08.66 |
-34:22:40.8 |
HIP 66211 |
1.49 |
| 2026-05-25 00:00 |
13:33:56.79 |
-34:21:23.4 |
HIP 66211 |
4.26 |
| 2026-05-25 12:00 |
13:33:45.01 |
-34:20:05.9 |
HIP 66211 |
7.01 |
| 2026-05-26 00:00 |
13:33:33.35 |
-34:18:48.3 |
HIP 66211 |
9.74 |
| 2026-05-26 12:00 |
13:33:21.79 |
-34:17:30.5 |
HIP 66211 |
12.46 |
| 2026-05-27 00:00 |
13:33:10.35 |
-34:16:12.6 |
HIP 66211 |
15.15 |
| 2026-05-27 12:00 |
13:32:59.01 |
-34:14:54.6 |
HIP 66211 |
17.83 |
| 2026-05-28 00:00 |
13:32:47.78 |
-34:13:36.6 |
HIP 66211 |
20.49 |
| 2026-05-28 12:00 |
13:32:36.66 |
-34:12:18.4 |
HIP 65922 |
22.68 |
| 2026-05-29 00:00 |
13:32:25.65 |
-34:11:00.2 |
HIP 65922 |
20.12 |
| 2026-05-29 12:00 |
13:32:14.75 |
-34:09:42.0 |
HIP 65922 |
17.60 |
| 2026-05-30 00:00 |
13:32:03.97 |
-34:08:23.6 |
HIP 65922 |
15.14 |
| 2026-05-30 12:00 |
13:31:53.29 |
-34:07:05.3 |
HIP 65922 |
12.74 |
| 2026-05-31 00:00 |
13:31:42.73 |
-34:05:46.9 |
HIP 65922 |
10.45 |
| 2026-05-31 12:00 |
13:31:32.28 |
-34:04:28.6 |
HIP 65922 |
8.32 |
| 2026-06-01 00:00 |
13:31:21.95 |
-34:03:10.2 |
HIP 65922 |
6.52 |
| 2026-06-01 12:00 |
13:31:11.73 |
-34:01:51.8 |
HIP 65922 |
5.33 |
| 2026-06-02 00:00 |
13:31:01.63 |
-34:00:33.4 |
HIP 65922 |
5.18 |