메타데이터
| 항목 |
값 |
| Designation |
297P/Beshore |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2008-03-21T00:41:22.073280Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:28:17Z |
| Obs used |
569 |
| NEO |
- |
| M1 |
6.700 |
| K1 |
20.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2009-02-28.0000000 |
| e |
0.30860610 |
| q (au) |
2.408841 |
| a (au) |
3.484036 |
| i (deg) |
10.263390 |
| Ω (om, deg) |
98.285080 |
| ω (w, deg) |
131.820042 |
| M (ma, deg) |
52.131741 |
밝기
산란 + 전체 선형
$$
M_a = (14.803 + 3.805\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.803 |
| n |
3.805 |
| gf |
0.800 |
| gb |
-0.883 |
| k |
0.998 |
| δ90 |
1.000 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
07:55:41.05 |
+26:46:19.7 |
HIP 38679 |
19.82 |
| 2026-06-01 12:00 |
07:56:16.35 |
+26:44:52.0 |
HIP 38679 |
24.99 |
| 2026-06-02 00:00 |
07:56:51.74 |
+26:43:23.7 |
HIP 38679 |
31.40 |
| 2026-06-02 12:00 |
07:57:27.23 |
+26:41:54.8 |
HIP 38832 |
36.67 |
| 2026-06-03 00:00 |
07:58:02.83 |
+26:40:25.2 |
HIP 38832 |
38.01 |
| 2026-06-03 12:00 |
07:58:38.52 |
+26:38:55.0 |
HIP 38985 |
37.51 |
| 2026-06-04 00:00 |
07:59:14.30 |
+26:37:24.3 |
HIP 38985 |
36.83 |
| 2026-06-04 12:00 |
07:59:50.18 |
+26:35:52.9 |
HIP 39306 |
31.58 |
| 2026-06-05 00:00 |
08:00:26.16 |
+26:34:20.8 |
HIP 39306 |
23.78 |
| 2026-06-05 12:00 |
08:01:02.23 |
+26:32:48.2 |
HIP 39306 |
16.34 |
| 2026-06-06 00:00 |
08:01:38.40 |
+26:31:14.9 |
HIP 39306 |
10.14 |
| 2026-06-06 12:00 |
08:02:14.66 |
+26:29:41.0 |
HIP 39306 |
8.63 |
| 2026-06-07 00:00 |
08:02:51.00 |
+26:28:06.5 |
HIP 39306 |
13.53 |
| 2026-06-07 12:00 |
08:03:27.44 |
+26:26:31.4 |
HIP 39401 |
10.66 |
| 2026-06-08 00:00 |
08:04:03.97 |
+26:24:55.6 |
HIP 39401 |
13.51 |
| 2026-06-08 12:00 |
08:04:40.59 |
+26:23:19.2 |
HIP 39401 |
19.78 |
| 2026-06-09 00:00 |
08:05:17.30 |
+26:21:42.2 |
HIP 39603 |
15.22 |
| 2026-06-09 12:00 |
08:05:54.10 |
+26:20:04.6 |
HIP 39603 |
13.87 |
| 2026-06-10 00:00 |
08:06:30.98 |
+26:18:26.3 |
HIP 39603 |
17.18 |
| 2026-06-10 12:00 |
08:07:07.95 |
+26:16:47.4 |
HIP 39603 |
23.25 |
| 2026-06-11 00:00 |
08:07:45.00 |
+26:15:07.9 |
HIP 39603 |
30.50 |
| 2026-06-11 12:00 |
08:08:22.14 |
+26:13:27.7 |
HIP 40007 |
33.78 |
| 2026-06-12 00:00 |
08:08:59.36 |
+26:11:46.9 |
HIP 40007 |
26.84 |
| 2026-06-12 12:00 |
08:09:36.67 |
+26:10:05.5 |
HIP 40007 |
21.08 |
| 2026-06-13 00:00 |
08:10:14.05 |
+26:08:23.5 |
HIP 40007 |
17.72 |
| 2026-06-13 12:00 |
08:10:51.52 |
+26:06:40.8 |
HIP 40007 |
18.19 |
| 2026-06-14 00:00 |
08:11:29.06 |
+26:04:57.5 |
HIP 40200 |
17.95 |
| 2026-06-14 12:00 |
08:12:06.69 |
+26:03:13.6 |
HIP 40200 |
12.60 |
| 2026-06-15 00:00 |
08:12:44.39 |
+26:01:29.0 |
HIP 40200 |
12.02 |
| 2026-06-15 12:00 |
08:13:22.17 |
+25:59:43.8 |
HIP 40200 |
16.73 |
| 2026-06-16 00:00 |
08:14:00.03 |
+25:57:58.0 |
HIP 40200 |
23.80 |
| 2026-06-16 12:00 |
08:14:37.96 |
+25:56:11.5 |
HIP 40200 |
31.71 |
| 2026-06-17 00:00 |
08:15:15.96 |
+25:54:24.5 |
HIP 40200 |
39.97 |
| 2026-06-17 12:00 |
08:15:54.04 |
+25:52:36.8 |
HIP 40640 |
36.38 |
| 2026-06-18 00:00 |
08:16:32.19 |
+25:50:48.4 |
HIP 40640 |
29.50 |
| 2026-06-18 12:00 |
08:17:10.41 |
+25:48:59.5 |
HIP 40640 |
23.90 |
| 2026-06-19 00:00 |
08:17:48.70 |
+25:47:09.9 |
HIP 40640 |
20.64 |
| 2026-06-19 12:00 |
08:18:27.05 |
+25:45:19.7 |
HIP 40640 |
20.89 |
| 2026-06-20 00:00 |
08:19:05.48 |
+25:43:28.9 |
HIP 40860 |
21.23 |
| 2026-06-20 12:00 |
08:19:43.97 |
+25:41:37.5 |
HIP 40860 |
14.03 |
| 2026-06-21 00:00 |
08:20:22.53 |
+25:39:45.5 |
HIP 40860 |
10.01 |
| 2026-06-21 12:00 |
08:21:01.16 |
+25:37:52.8 |
HIP 40860 |
12.72 |
| 2026-06-22 00:00 |
08:21:39.84 |
+25:35:59.5 |
HIP 41059 |
16.56 |