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 · 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) |
| 2026-05-12 00:00 |
07:28:59.65 |
+06:43:43.0 |
HIP 36417 |
9.10 |
| 2026-05-12 12:00 |
07:29:11.28 |
+06:43:57.6 |
HIP 36417 |
6.79 |
| 2026-05-13 00:00 |
07:29:22.98 |
+06:44:11.6 |
HIP 36417 |
5.09 |
| 2026-05-13 12:00 |
07:29:34.77 |
+06:44:25.1 |
HIP 36417 |
4.78 |
| 2026-05-14 00:00 |
07:29:46.65 |
+06:44:38.0 |
HIP 36417 |
6.08 |
| 2026-05-14 12:00 |
07:29:58.60 |
+06:44:50.5 |
HIP 36417 |
8.29 |
| 2026-05-15 00:00 |
07:30:10.64 |
+06:45:02.3 |
HIP 36417 |
10.89 |
| 2026-05-15 12:00 |
07:30:22.75 |
+06:45:13.7 |
HIP 36417 |
13.66 |
| 2026-05-16 00:00 |
07:30:34.95 |
+06:45:24.4 |
HIP 36417 |
16.54 |
| 2026-05-16 12:00 |
07:30:47.22 |
+06:45:34.7 |
HIP 36417 |
19.47 |
| 2026-05-17 00:00 |
07:30:59.58 |
+06:45:44.3 |
HIP 36417 |
22.46 |
| 2026-05-17 12:00 |
07:31:12.01 |
+06:45:53.5 |
HIP 36417 |
25.48 |
| 2026-05-18 00:00 |
07:31:24.51 |
+06:46:02.1 |
HIP 36664 |
24.08 |
| 2026-05-18 12:00 |
07:31:37.09 |
+06:46:10.1 |
HIP 36664 |
22.03 |
| 2026-05-19 00:00 |
07:31:49.75 |
+06:46:17.6 |
HIP 36664 |
20.24 |
| 2026-05-19 12:00 |
07:32:02.48 |
+06:46:24.5 |
HIP 36664 |
18.80 |
| 2026-05-20 00:00 |
07:32:15.29 |
+06:46:30.9 |
HIP 36664 |
17.79 |
| 2026-05-20 12:00 |
07:32:28.16 |
+06:46:36.7 |
HIP 36664 |
17.30 |
| 2026-05-21 00:00 |
07:32:41.11 |
+06:46:42.0 |
HIP 36664 |
17.39 |
| 2026-05-21 12:00 |
07:32:54.13 |
+06:46:46.7 |
HIP 36664 |
18.06 |
| 2026-05-22 00:00 |
07:33:07.22 |
+06:46:50.9 |
HIP 36664 |
19.26 |
| 2026-05-22 12:00 |
07:33:20.38 |
+06:46:54.5 |
HIP 36664 |
20.90 |
| 2026-05-23 00:00 |
07:33:33.61 |
+06:46:57.6 |
HIP 36664 |
22.89 |
| 2026-05-23 12:00 |
07:33:46.90 |
+06:47:00.1 |
HIP 36664 |
25.16 |
| 2026-05-24 00:00 |
07:34:00.26 |
+06:47:02.1 |
HIP 36664 |
27.65 |
| 2026-05-24 12:00 |
07:34:13.69 |
+06:47:03.5 |
HIP 36749 |
29.80 |
| 2026-05-25 00:00 |
07:34:27.19 |
+06:47:04.4 |
HIP 36749 |
31.12 |
| 2026-05-25 12:00 |
07:34:40.75 |
+06:47:04.7 |
HIP 36749 |
32.75 |
| 2026-05-26 00:00 |
07:34:54.37 |
+06:47:04.5 |
HIP 36749 |
34.65 |
| 2026-05-26 12:00 |
07:35:08.05 |
+06:47:03.7 |
HIP 36888 |
35.42 |
| 2026-05-27 00:00 |
07:35:21.80 |
+06:47:02.4 |
HIP 36888 |
35.68 |
| 2026-05-27 12:00 |
07:35:35.62 |
+06:47:00.5 |
HIP 36888 |
36.26 |
| 2026-05-28 00:00 |
07:35:49.49 |
+06:46:58.1 |
HIP 37024 |
35.64 |
| 2026-05-28 12:00 |
07:36:03.42 |
+06:46:55.1 |
HIP 37024 |
34.83 |
| 2026-05-29 00:00 |
07:36:17.42 |
+06:46:51.6 |
HIP 37024 |
34.35 |
| 2026-05-29 12:00 |
07:36:31.47 |
+06:46:47.5 |
HIP 37024 |
34.24 |
| 2026-05-30 00:00 |
07:36:45.58 |
+06:46:42.9 |
HIP 37024 |
34.49 |
| 2026-05-30 12:00 |
07:36:59.75 |
+06:46:37.8 |
HIP 37024 |
35.10 |
| 2026-05-31 00:00 |
07:37:13.98 |
+06:46:32.1 |
HIP 37024 |
36.06 |
| 2026-05-31 12:00 |
07:37:28.26 |
+06:46:25.8 |
HIP 37024 |
37.34 |
| 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 |