메타데이터
| 항목 |
값 |
| Designation |
C/2022 K1 (Leonard) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2021-12-17T08:14:51.092160Z |
| Orbit solution date (soln_date, UTC) |
2022-09-27T15:43:04Z |
| Obs used |
87 |
| NEO |
- |
| M1 |
8.500 |
| K1 |
14.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-05-30T09:54:41.385600Z |
| Discovery magnitude (MPC) |
19.70 G |
| Discovery observatory (MPC) |
G96 · University of Arizona Mt. Lemmon Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-07-11.0000000 |
| e |
1.00269066 |
| q (au) |
3.986818 |
| a (au) |
-1481.722941 |
| i (deg) |
41.979828 |
| Ω (om, deg) |
136.294011 |
| ω (w, deg) |
142.639740 |
| M (ma, deg) |
0.003554 |
밝기
산란 + 전체 선형
$$
M_a = (7.351 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.351 |
| n |
6.000 |
| gf |
0.871 |
| gb |
-0.912 |
| k |
1.000 |
| δ90 |
5.456 |
| 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 |
02:56:04.50 |
-28:30:14.4 |
HIP 13692 |
26.99 |
| 2026-09-20 12:00 |
02:55:59.75 |
-28:31:41.2 |
HIP 13692 |
25.72 |
| 2026-09-21 00:00 |
02:55:54.93 |
-28:33:07.7 |
HIP 13692 |
24.51 |
| 2026-09-21 12:00 |
02:55:50.05 |
-28:34:33.7 |
HIP 13692 |
23.39 |
| 2026-09-22 00:00 |
02:55:45.10 |
-28:35:59.3 |
HIP 13692 |
22.37 |
| 2026-09-22 12:00 |
02:55:40.07 |
-28:37:24.6 |
HIP 13692 |
21.46 |
| 2026-09-23 00:00 |
02:55:34.98 |
-28:38:49.4 |
HIP 13692 |
20.68 |
| 2026-09-23 12:00 |
02:55:29.83 |
-28:40:13.8 |
HIP 13692 |
20.05 |
| 2026-09-24 00:00 |
02:55:24.61 |
-28:41:37.7 |
HIP 13692 |
19.57 |
| 2026-09-24 12:00 |
02:55:19.32 |
-28:43:01.2 |
HIP 13692 |
19.27 |
| 2026-09-25 00:00 |
02:55:13.97 |
-28:44:24.3 |
HIP 13692 |
19.16 |
| 2026-09-25 12:00 |
02:55:08.55 |
-28:45:46.9 |
HIP 13692 |
19.22 |
| 2026-09-26 00:00 |
02:55:03.07 |
-28:47:09.0 |
HIP 13692 |
19.48 |
| 2026-09-26 12:00 |
02:54:57.53 |
-28:48:30.7 |
HIP 13692 |
19.91 |
| 2026-09-27 00:00 |
02:54:51.93 |
-28:49:51.8 |
HIP 13692 |
20.52 |
| 2026-09-27 12:00 |
02:54:46.26 |
-28:51:12.5 |
HIP 13692 |
21.28 |
| 2026-09-28 00:00 |
02:54:40.53 |
-28:52:32.7 |
HIP 13692 |
22.17 |
| 2026-09-28 12:00 |
02:54:34.74 |
-28:53:52.4 |
HIP 13692 |
23.20 |
| 2026-09-29 00:00 |
02:54:28.89 |
-28:55:11.6 |
HIP 13692 |
24.33 |
| 2026-09-29 12:00 |
02:54:22.98 |
-28:56:30.3 |
HIP 13692 |
25.56 |
| 2026-09-30 00:00 |
02:54:17.01 |
-28:57:48.4 |
HIP 13692 |
26.86 |
| 2026-09-30 12:00 |
02:54:10.98 |
-28:59:06.1 |
HIP 13692 |
28.25 |
| 2026-10-01 00:00 |
02:54:04.89 |
-29:00:23.1 |
HIP 13692 |
29.69 |
| 2026-10-01 12:00 |
02:53:58.74 |
-29:01:39.6 |
HIP 13692 |
31.18 |
| 2026-10-02 00:00 |
02:53:52.54 |
-29:02:55.6 |
HIP 13692 |
32.73 |
| 2026-10-02 12:00 |
02:53:46.28 |
-29:04:11.0 |
HIP 13517 |
33.38 |
| 2026-10-03 00:00 |
02:53:39.97 |
-29:05:25.8 |
HIP 13517 |
32.35 |
| 2026-10-03 12:00 |
02:53:33.60 |
-29:06:40.1 |
HIP 13517 |
31.41 |
| 2026-10-04 00:00 |
02:53:27.17 |
-29:07:53.7 |
HIP 13517 |
30.56 |
| 2026-10-04 12:00 |
02:53:20.70 |
-29:09:06.8 |
HIP 13517 |
29.81 |
| 2026-10-05 00:00 |
02:53:14.17 |
-29:10:19.2 |
HIP 13517 |
29.18 |
| 2026-10-05 12:00 |
02:53:07.58 |
-29:11:31.1 |
HIP 13517 |
28.68 |
| 2026-10-06 00:00 |
02:53:00.95 |
-29:12:42.3 |
HIP 13517 |
28.30 |
| 2026-10-06 12:00 |
02:52:54.26 |
-29:13:52.9 |
HIP 13517 |
28.05 |
| 2026-10-07 00:00 |
02:52:47.52 |
-29:15:02.8 |
HIP 13285 |
27.75 |
| 2026-10-07 12:00 |
02:52:40.74 |
-29:16:12.1 |
HIP 13285 |
27.18 |
| 2026-10-08 00:00 |
02:52:33.90 |
-29:17:20.8 |
HIP 13285 |
26.71 |
| 2026-10-08 12:00 |
02:52:27.02 |
-29:18:28.8 |
HIP 13285 |
26.35 |
| 2026-10-09 00:00 |
02:52:20.09 |
-29:19:36.1 |
HIP 13285 |
26.11 |
| 2026-10-09 12:00 |
02:52:13.11 |
-29:20:42.8 |
HIP 13285 |
25.99 |
| 2026-10-10 00:00 |
02:52:06.09 |
-29:21:48.7 |
HIP 13285 |
25.99 |
| 2026-10-10 12:00 |
02:51:59.02 |
-29:22:54.0 |
HIP 13285 |
26.11 |
| 2026-10-11 00:00 |
02:51:51.91 |
-29:23:58.6 |
HIP 13285 |
26.35 |