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
$$
M_a = (13.564 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.564 |
| n |
2.000 |
| gf |
0.993 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
3.095 |
| 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 |
15:04:15.86 |
-09:27:46.4 |
HIP 73701 |
11.57 |
| 2026-05-12 12:00 |
15:03:45.94 |
-09:26:00.1 |
HIP 73701 |
7.84 |
| 2026-05-13 00:00 |
15:03:16.09 |
-09:24:14.2 |
HIP 73701 |
10.21 |
| 2026-05-13 12:00 |
15:02:46.30 |
-09:22:28.9 |
HIP 73701 |
16.16 |
| 2026-05-14 00:00 |
15:02:16.59 |
-09:20:44.0 |
HIP 73701 |
23.06 |
| 2026-05-14 12:00 |
15:01:46.94 |
-09:18:59.6 |
HIP 73435 |
23.35 |
| 2026-05-15 00:00 |
15:01:17.37 |
-09:17:15.7 |
HIP 73435 |
16.19 |
| 2026-05-15 12:00 |
15:00:47.89 |
-09:15:32.3 |
HIP 73435 |
9.58 |
| 2026-05-16 00:00 |
15:00:18.48 |
-09:13:49.4 |
HIP 73435 |
5.79 |
| 2026-05-16 12:00 |
14:59:49.16 |
-09:12:07.1 |
HIP 73435 |
9.28 |
| 2026-05-17 00:00 |
14:59:19.92 |
-09:10:25.4 |
HIP 73435 |
15.77 |
| 2026-05-17 12:00 |
14:58:50.78 |
-09:08:44.2 |
HIP 73435 |
22.81 |
| 2026-05-18 00:00 |
14:58:21.73 |
-09:07:03.5 |
HIP 73255 |
25.41 |
| 2026-05-18 12:00 |
14:57:52.77 |
-09:05:23.5 |
HIP 73114 |
21.71 |
| 2026-05-19 00:00 |
14:57:23.91 |
-09:03:44.0 |
HIP 73114 |
14.67 |
| 2026-05-19 12:00 |
14:56:55.16 |
-09:02:05.2 |
HIP 73114 |
8.16 |
| 2026-05-20 00:00 |
14:56:26.51 |
-09:00:27.0 |
HIP 73114 |
4.91 |
| 2026-05-20 12:00 |
14:55:57.96 |
-08:58:49.3 |
HIP 73114 |
9.31 |
| 2026-05-21 00:00 |
14:55:29.52 |
-08:57:12.4 |
HIP 72998 |
10.20 |
| 2026-05-21 12:00 |
14:55:01.20 |
-08:55:36.0 |
HIP 72998 |
10.29 |
| 2026-05-22 00:00 |
14:54:32.98 |
-08:54:00.4 |
HIP 72998 |
14.50 |
| 2026-05-22 12:00 |
14:54:04.89 |
-08:52:25.4 |
HIP 72891 |
13.16 |
| 2026-05-23 00:00 |
14:53:36.91 |
-08:50:51.0 |
HIP 72808 |
14.04 |
| 2026-05-23 12:00 |
14:53:09.05 |
-08:49:17.4 |
HIP 72808 |
8.45 |
| 2026-05-24 00:00 |
14:52:41.32 |
-08:47:44.4 |
HIP 72808 |
6.73 |
| 2026-05-24 12:00 |
14:52:13.71 |
-08:46:12.1 |
HIP 72808 |
10.83 |
| 2026-05-25 00:00 |
14:51:46.22 |
-08:44:40.5 |
HIP 72808 |
16.92 |
| 2026-05-25 12:00 |
14:51:18.87 |
-08:43:09.7 |
HIP 72808 |
23.46 |
| 2026-05-26 00:00 |
14:50:51.65 |
-08:41:39.5 |
HIP 72496 |
24.19 |
| 2026-05-26 12:00 |
14:50:24.56 |
-08:40:10.1 |
HIP 72496 |
17.68 |
| 2026-05-27 00:00 |
14:49:57.60 |
-08:38:41.5 |
HIP 72496 |
11.61 |
| 2026-05-27 12:00 |
14:49:30.78 |
-08:37:13.5 |
HIP 72496 |
7.10 |
| 2026-05-28 00:00 |
14:49:04.10 |
-08:35:46.3 |
HIP 72496 |
7.62 |
| 2026-05-28 12:00 |
14:48:37.56 |
-08:34:19.9 |
HIP 72496 |
12.50 |
| 2026-05-29 00:00 |
14:48:11.17 |
-08:32:54.2 |
HIP 72496 |
18.53 |
| 2026-05-29 12:00 |
14:47:44.91 |
-08:31:29.3 |
HIP 72496 |
24.86 |
| 2026-05-30 00:00 |
14:47:18.80 |
-08:30:05.2 |
HIP 72143 |
29.08 |
| 2026-05-30 12:00 |
14:46:52.84 |
-08:28:41.9 |
HIP 72143 |
22.59 |
| 2026-05-31 00:00 |
14:46:27.03 |
-08:27:19.3 |
HIP 72143 |
16.19 |
| 2026-05-31 12:00 |
14:46:01.37 |
-08:25:57.5 |
HIP 72143 |
10.00 |
| 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 |