메타데이터
| 항목 |
값 |
| Designation |
C/2023 TD22 (Lemmon) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-09-16T06:57:35.680320Z |
| Orbit solution date (soln_date, UTC) |
2026-04-27T13:42:20Z |
| Obs used |
613 |
| NEO |
- |
| M1 |
12.800 |
| K1 |
9.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-08-15.0000000 |
| e |
0.95098531 |
| q (au) |
2.356801 |
| a (au) |
48.083568 |
| i (deg) |
170.489642 |
| Ω (om, deg) |
5.555951 |
| ω (w, deg) |
32.533345 |
| M (ma, deg) |
359.904550 |
밝기
산란 + 전체 선형
$$
M_a = (13.563 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.563 |
| n |
2.000 |
| gf |
0.959 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
3.114 |
| 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) |
| 2026-06-01 00:00 |
14:45:35.86 |
-08:24:36.6 |
HIP 72143 |
4.71 |
| 2026-06-01 12:00 |
14:45:10.51 |
-08:23:16.4 |
HIP 72143 |
5.22 |
| 2026-06-02 00:00 |
14:44:45.31 |
-08:21:57.1 |
HIP 72047 |
10.36 |
| 2026-06-02 12:00 |
14:44:20.27 |
-08:20:38.6 |
HIP 72047 |
5.74 |
| 2026-06-03 00:00 |
14:43:55.38 |
-08:19:20.9 |
HIP 72047 |
6.21 |
| 2026-06-03 12:00 |
14:43:30.66 |
-08:18:04.0 |
HIP 72047 |
11.07 |
| 2026-06-04 00:00 |
14:43:06.09 |
-08:16:48.0 |
HIP 72047 |
16.83 |
| 2026-06-04 12:00 |
14:42:41.69 |
-08:15:32.8 |
HIP 72047 |
22.79 |
| 2026-06-05 00:00 |
14:42:17.46 |
-08:14:18.4 |
HIP 72047 |
28.80 |
| 2026-06-05 12:00 |
14:41:53.38 |
-08:13:04.9 |
HIP 71769 |
24.75 |
| 2026-06-06 00:00 |
14:41:29.48 |
-08:11:52.3 |
HIP 71769 |
20.43 |
| 2026-06-06 12:00 |
14:41:05.74 |
-08:10:40.5 |
HIP 71769 |
17.20 |
| 2026-06-07 00:00 |
14:40:42.17 |
-08:09:29.6 |
HIP 71769 |
15.71 |
| 2026-06-07 12:00 |
14:40:18.77 |
-08:08:19.5 |
HIP 71769 |
16.37 |
| 2026-06-08 00:00 |
14:39:55.54 |
-08:07:10.3 |
HIP 71769 |
18.93 |
| 2026-06-08 12:00 |
14:39:32.48 |
-08:06:02.0 |
HIP 71769 |
22.73 |
| 2026-06-09 00:00 |
14:39:09.60 |
-08:04:54.6 |
HIP 71769 |
27.21 |
| 2026-06-09 12:00 |
14:38:46.89 |
-08:03:48.0 |
HIP 71769 |
32.07 |
| 2026-06-10 00:00 |
14:38:24.36 |
-08:02:42.4 |
HIP 71769 |
37.15 |
| 2026-06-10 12:00 |
14:38:02.00 |
-08:01:37.6 |
HIP 71557 |
38.91 |
| 2026-06-11 00:00 |
14:37:39.83 |
-08:00:33.8 |
HIP 71344 |
39.31 |
| 2026-06-11 12:00 |
14:37:17.83 |
-07:59:30.8 |
HIP 71344 |
35.47 |
| 2026-06-12 00:00 |
14:36:56.01 |
-07:58:28.7 |
HIP 71344 |
32.15 |
| 2026-06-12 12:00 |
14:36:34.37 |
-07:57:27.6 |
HIP 71344 |
29.50 |
| 2026-06-13 00:00 |
14:36:12.91 |
-07:56:27.4 |
HIP 71344 |
27.69 |
| 2026-06-13 12:00 |
14:35:51.64 |
-07:55:28.0 |
HIP 71344 |
26.86 |
| 2026-06-14 00:00 |
14:35:30.55 |
-07:54:29.6 |
HIP 71344 |
27.07 |
| 2026-06-14 12:00 |
14:35:09.64 |
-07:53:32.1 |
HIP 71344 |
28.27 |
| 2026-06-15 00:00 |
14:34:48.92 |
-07:52:35.5 |
HIP 71344 |
30.32 |
| 2026-06-15 12:00 |
14:34:28.39 |
-07:51:39.9 |
HIP 71344 |
33.04 |
| 2026-06-16 00:00 |
14:34:08.04 |
-07:50:45.2 |
HIP 71344 |
36.26 |
| 2026-06-16 12:00 |
14:33:47.88 |
-07:49:51.4 |
HIP 71344 |
39.84 |
| 2026-06-17 00:00 |
14:33:27.91 |
-07:48:58.5 |
HIP 71130 |
37.51 |
| 2026-06-17 12:00 |
14:33:08.13 |
-07:48:06.5 |
HIP 71130 |
35.71 |
| 2026-06-18 00:00 |
14:32:48.53 |
-07:47:15.5 |
HIP 71130 |
34.56 |
| 2026-06-18 12:00 |
14:32:29.13 |
-07:46:25.4 |
HIP 71130 |
34.09 |
| 2026-06-19 00:00 |
14:32:09.91 |
-07:45:36.2 |
HIP 71130 |
34.32 |
| 2026-06-19 12:00 |
14:31:50.89 |
-07:44:48.0 |
HIP 71130 |
35.22 |
| 2026-06-20 00:00 |
14:31:32.06 |
-07:44:00.7 |
HIP 71130 |
36.71 |
| 2026-06-20 12:00 |
14:31:13.41 |
-07:43:14.3 |
HIP 71130 |
38.70 |
| 2026-06-21 00:00 |
14:30:54.96 |
-07:42:28.8 |
HIP 70766 |
38.80 |
| 2026-06-21 12:00 |
14:30:36.70 |
-07:41:44.3 |
HIP 70766 |
34.50 |
| 2026-06-22 00:00 |
14:30:18.63 |
-07:41:00.7 |
HIP 70766 |
30.32 |