507P/Lemmon
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) |
| 2026-02-03 00:00 |
07:29:02.67 |
+04:03:44.2 |
HIP 36310 |
10.69 |
| 2026-02-03 12:00 |
07:28:50.55 |
+04:04:33.6 |
HIP 36310 |
7.71 |
| 2026-02-04 00:00 |
07:28:38.50 |
+04:05:23.5 |
HIP 36310 |
4.95 |
| 2026-02-04 12:00 |
07:28:26.55 |
+04:06:13.8 |
HIP 36310 |
2.97 |
| 2026-02-05 00:00 |
07:28:14.68 |
+04:07:04.6 |
HIP 36310 |
3.50 |
| 2026-02-05 12:00 |
07:28:02.89 |
+04:07:55.8 |
HIP 36310 |
5.86 |
| 2026-02-06 00:00 |
07:27:51.20 |
+04:08:47.5 |
HIP 36310 |
8.65 |
| 2026-02-06 12:00 |
07:27:39.59 |
+04:09:39.6 |
HIP 36310 |
11.54 |
| 2026-02-07 00:00 |
07:27:28.08 |
+04:10:32.2 |
HIP 36295 |
14.44 |
| 2026-02-07 12:00 |
07:27:16.66 |
+04:11:25.2 |
HIP 36295 |
17.32 |
| 2026-02-08 00:00 |
07:27:05.33 |
+04:12:18.5 |
HIP 36295 |
20.21 |
| 2026-02-08 12:00 |
07:26:54.10 |
+04:13:12.3 |
HIP 36049 |
21.86 |
| 2026-02-09 00:00 |
07:26:42.97 |
+04:14:06.5 |
HIP 36049 |
19.15 |
| 2026-02-09 12:00 |
07:26:31.93 |
+04:15:01.0 |
HIP 36049 |
16.52 |
| 2026-02-10 00:00 |
07:26:21.00 |
+04:15:56.0 |
HIP 36049 |
14.02 |
| 2026-02-10 12:00 |
07:26:10.17 |
+04:16:51.3 |
HIP 36049 |
11.69 |
| 2026-02-11 00:00 |
07:25:59.44 |
+04:17:46.9 |
HIP 36049 |
9.65 |
| 2026-02-11 12:00 |
07:25:48.81 |
+04:18:42.9 |
HIP 36049 |
8.10 |
| 2026-02-12 00:00 |
07:25:38.29 |
+04:19:39.3 |
HIP 36049 |
7.33 |
| 2026-02-12 12:00 |
07:25:27.88 |
+04:20:36.0 |
HIP 36049 |
7.55 |
| 2026-02-13 00:00 |
07:25:17.57 |
+04:21:33.0 |
HIP 36049 |
8.67 |
| 2026-02-13 12:00 |
07:25:07.38 |
+04:22:30.4 |
HIP 36049 |
10.38 |
| 2026-02-14 00:00 |
07:24:57.29 |
+04:23:28.0 |
HIP 36049 |
12.42 |
| 2026-02-14 12:00 |
07:24:47.32 |
+04:24:26.0 |
HIP 36031 |
13.80 |
| 2026-02-15 00:00 |
07:24:37.46 |
+04:25:24.2 |
HIP 36031 |
15.15 |
| 2026-02-15 12:00 |
07:24:27.71 |
+04:26:22.8 |
HIP 36031 |
16.78 |
| 2026-02-16 00:00 |
07:24:18.08 |
+04:27:21.6 |
HIP 36031 |
18.61 |
| 2026-02-16 12:00 |
07:24:08.57 |
+04:28:20.6 |
HIP 36031 |
20.57 |
| 2026-02-17 00:00 |
07:23:59.17 |
+04:29:19.9 |
HIP 36031 |
22.63 |
| 2026-02-17 12:00 |
07:23:49.89 |
+04:30:19.5 |
HIP 36031 |
24.75 |
| 2026-02-18 00:00 |
07:23:40.73 |
+04:31:19.3 |
HIP 35736 |
22.66 |
| 2026-02-18 12:00 |
07:23:31.70 |
+04:32:19.4 |
HIP 35736 |
20.19 |
| 2026-02-19 00:00 |
07:23:22.78 |
+04:33:19.6 |
HIP 35736 |
17.75 |
| 2026-02-19 12:00 |
07:23:13.99 |
+04:34:20.1 |
HIP 35736 |
15.34 |
| 2026-02-20 00:00 |
07:23:05.32 |
+04:35:20.8 |
HIP 35736 |
12.96 |
| 2026-02-20 12:00 |
07:22:56.78 |
+04:36:21.6 |
HIP 35736 |
10.61 |
| 2026-02-21 00:00 |
07:22:48.36 |
+04:37:22.7 |
HIP 35736 |
8.28 |
| 2026-02-21 12:00 |
07:22:40.07 |
+04:38:23.9 |
HIP 35736 |
5.99 |
| 2026-02-22 00:00 |
07:22:31.91 |
+04:39:25.3 |
HIP 35736 |
3.75 |
| 2026-02-22 12:00 |
07:22:23.87 |
+04:40:26.8 |
HIP 35736 |
1.64 |
| 2026-02-23 00:00 |
07:22:15.96 |
+04:41:28.5 |
HIP 35736 |
1.20 |
| 2026-02-23 12:00 |
07:22:08.19 |
+04:42:30.4 |
HIP 35736 |
3.15 |
| 2026-02-24 00:00 |
07:22:00.54 |
+04:43:32.3 |
HIP 35736 |
5.27 |