메타데이터
| 항목 |
값 |
| Designation |
507P/Lemmon |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-12-06T12:07:02.400960Z |
| Orbit solution date (soln_date, UTC) |
2025-08-01T17:26:05Z |
| Obs used |
99 |
| NEO |
- |
| M1 |
15.800 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2007-09-25T06:37:46.272000Z |
| Discovery magnitude (MPC) |
20.60 V |
| Discovery observatory (MPC) |
G96 · University of Arizona Mt. Lemmon Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-04-20.0000000 |
| e |
0.56799400 |
| q (au) |
2.717068 |
| a (au) |
6.289421 |
| i (deg) |
17.095414 |
| Ω (om, deg) |
233.426223 |
| ω (w, deg) |
108.747547 |
| M (ma, deg) |
277.110996 |
밝기
산란 + 전체 선형
$$
M_a = (18.505 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
18.505 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.756 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
07:37:42.60 |
+06:46:19.0 |
HIP 37370 |
37.92 |
| 2026-06-01 12:00 |
07:37:57.00 |
+06:46:11.7 |
HIP 37370 |
34.34 |
| 2026-06-02 00:00 |
07:38:11.45 |
+06:46:03.8 |
HIP 37370 |
30.76 |
| 2026-06-02 12:00 |
07:38:25.95 |
+06:45:55.4 |
HIP 37370 |
27.16 |
| 2026-06-03 00:00 |
07:38:40.51 |
+06:45:46.4 |
HIP 37370 |
23.55 |
| 2026-06-03 12:00 |
07:38:55.12 |
+06:45:36.9 |
HIP 37370 |
19.94 |
| 2026-06-04 00:00 |
07:39:09.78 |
+06:45:26.8 |
HIP 37370 |
16.31 |
| 2026-06-04 12:00 |
07:39:24.50 |
+06:45:16.2 |
HIP 37370 |
12.69 |
| 2026-06-05 00:00 |
07:39:39.26 |
+06:45:05.1 |
HIP 37370 |
9.09 |
| 2026-06-05 12:00 |
07:39:54.08 |
+06:44:53.4 |
HIP 37370 |
5.56 |
| 2026-06-06 00:00 |
07:40:08.95 |
+06:44:41.1 |
HIP 37370 |
2.52 |
| 2026-06-06 12:00 |
07:40:23.87 |
+06:44:28.3 |
HIP 37370 |
3.04 |
| 2026-06-07 00:00 |
07:40:38.83 |
+06:44:15.0 |
HIP 37370 |
6.31 |
| 2026-06-07 12:00 |
07:40:53.84 |
+06:44:01.1 |
HIP 37398 |
7.25 |
| 2026-06-08 00:00 |
07:41:08.90 |
+06:43:46.7 |
HIP 37398 |
9.29 |
| 2026-06-08 12:00 |
07:41:24.01 |
+06:43:31.7 |
HIP 37398 |
12.18 |
| 2026-06-09 00:00 |
07:41:39.17 |
+06:43:16.2 |
HIP 37398 |
15.46 |
| 2026-06-09 12:00 |
07:41:54.37 |
+06:43:00.2 |
HIP 37398 |
18.93 |
| 2026-06-10 00:00 |
07:42:09.61 |
+06:42:43.6 |
HIP 37398 |
22.51 |
| 2026-06-10 12:00 |
07:42:24.90 |
+06:42:26.4 |
HIP 37592 |
23.23 |
| 2026-06-11 00:00 |
07:42:40.23 |
+06:42:08.8 |
HIP 37592 |
22.85 |
| 2026-06-11 12:00 |
07:42:55.61 |
+06:41:50.5 |
HIP 37592 |
23.11 |
| 2026-06-12 00:00 |
07:43:11.03 |
+06:41:31.8 |
HIP 37592 |
24.00 |
| 2026-06-12 12:00 |
07:43:26.49 |
+06:41:12.4 |
HIP 37656 |
24.27 |
| 2026-06-13 00:00 |
07:43:41.99 |
+06:40:52.6 |
HIP 37656 |
23.81 |
| 2026-06-13 12:00 |
07:43:57.54 |
+06:40:32.2 |
HIP 37656 |
23.97 |
| 2026-06-14 00:00 |
07:44:13.12 |
+06:40:11.3 |
HIP 37656 |
24.73 |
| 2026-06-14 12:00 |
07:44:28.74 |
+06:39:49.8 |
HIP 37786 |
25.01 |
| 2026-06-15 00:00 |
07:44:44.40 |
+06:39:27.8 |
HIP 37786 |
23.95 |
| 2026-06-15 12:00 |
07:45:00.10 |
+06:39:05.2 |
HIP 37786 |
23.49 |
| 2026-06-16 00:00 |
07:45:15.83 |
+06:38:42.1 |
HIP 37786 |
23.67 |
| 2026-06-16 12:00 |
07:45:31.60 |
+06:38:18.5 |
HIP 37786 |
24.49 |
| 2026-06-17 00:00 |
07:45:47.41 |
+06:37:54.3 |
HIP 37786 |
25.88 |
| 2026-06-17 12:00 |
07:46:03.25 |
+06:37:29.6 |
HIP 37786 |
27.76 |
| 2026-06-18 00:00 |
07:46:19.12 |
+06:37:04.3 |
HIP 38025 |
26.04 |
| 2026-06-18 12:00 |
07:46:35.03 |
+06:36:38.5 |
HIP 38025 |
23.04 |
| 2026-06-19 00:00 |
07:46:50.97 |
+06:36:12.2 |
HIP 38025 |
20.37 |
| 2026-06-19 12:00 |
07:47:06.94 |
+06:35:45.4 |
HIP 38025 |
18.16 |
| 2026-06-20 00:00 |
07:47:22.95 |
+06:35:18.0 |
HIP 38025 |
16.63 |
| 2026-06-20 12:00 |
07:47:38.98 |
+06:34:50.1 |
HIP 38025 |
15.97 |
| 2026-06-21 00:00 |
07:47:55.04 |
+06:34:21.7 |
HIP 38093 |
14.50 |
| 2026-06-21 12:00 |
07:48:11.14 |
+06:33:52.7 |
HIP 38093 |
13.54 |
| 2026-06-22 00:00 |
07:48:27.26 |
+06:33:23.3 |
HIP 38093 |
13.76 |