메타데이터
| 항목 |
값 |
| Designation |
68P/Klemola |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2019-11-11T19:47:30.373440Z |
| Orbit solution date (soln_date, UTC) |
2023-04-25T08:40:31Z |
| Obs used |
1680 |
| NEO |
- |
| M1 |
11.200 |
| K1 |
11.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-03-06.0000000 |
| e |
0.64034454 |
| q (au) |
1.762060 |
| a (au) |
4.899300 |
| i (deg) |
11.184340 |
| Ω (om, deg) |
175.299711 |
| ω (w, deg) |
153.835783 |
| M (ma, deg) |
237.681694 |
밝기
산란 + 전체 선형
$$
M_a = (11.051 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.051 |
| n |
6.000 |
| gf |
0.997 |
| gb |
-0.585 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
10:28:19.96 |
+06:45:53.5 |
HIP 51254 |
2.99 |
| 2026-07-29 12:00 |
10:28:33.79 |
+06:44:46.1 |
HIP 51254 |
5.84 |
| 2026-07-30 00:00 |
10:28:47.67 |
+06:43:38.3 |
HIP 51254 |
9.26 |
| 2026-07-30 12:00 |
10:29:01.58 |
+06:42:30.2 |
HIP 51254 |
12.80 |
| 2026-07-31 00:00 |
10:29:15.54 |
+06:41:21.8 |
HIP 51254 |
16.39 |
| 2026-07-31 12:00 |
10:29:29.53 |
+06:40:13.0 |
HIP 51458 |
16.77 |
| 2026-08-01 00:00 |
10:29:43.56 |
+06:39:03.9 |
HIP 51458 |
13.16 |
| 2026-08-01 12:00 |
10:29:57.62 |
+06:37:54.4 |
HIP 51458 |
9.59 |
| 2026-08-02 00:00 |
10:30:11.72 |
+06:36:44.6 |
HIP 51458 |
6.13 |
| 2026-08-02 12:00 |
10:30:25.86 |
+06:35:34.5 |
HIP 51458 |
3.24 |
| 2026-08-03 00:00 |
10:30:40.03 |
+06:34:24.1 |
HIP 51458 |
3.28 |
| 2026-08-03 12:00 |
10:30:54.24 |
+06:33:13.4 |
HIP 51505 |
4.93 |
| 2026-08-04 00:00 |
10:31:08.49 |
+06:32:02.3 |
HIP 51505 |
5.08 |
| 2026-08-04 12:00 |
10:31:22.76 |
+06:30:50.9 |
HIP 51522 |
5.13 |
| 2026-08-05 00:00 |
10:31:37.07 |
+06:29:39.2 |
HIP 51522 |
7.32 |
| 2026-08-05 12:00 |
10:31:51.42 |
+06:28:27.2 |
HIP 51522 |
10.45 |
| 2026-08-06 00:00 |
10:32:05.79 |
+06:27:14.9 |
HIP 51522 |
13.90 |
| 2026-08-06 12:00 |
10:32:20.20 |
+06:26:02.3 |
HIP 51667 |
15.31 |
| 2026-08-07 00:00 |
10:32:34.64 |
+06:24:49.3 |
HIP 51667 |
11.54 |
| 2026-08-07 12:00 |
10:32:49.11 |
+06:23:36.1 |
HIP 51667 |
7.76 |
| 2026-08-08 00:00 |
10:33:03.61 |
+06:22:22.6 |
HIP 51667 |
4.00 |
| 2026-08-08 12:00 |
10:33:18.14 |
+06:21:08.8 |
HIP 51667 |
0.92 |
| 2026-08-09 00:00 |
10:33:32.70 |
+06:19:54.7 |
HIP 51667 |
3.85 |
| 2026-08-09 12:00 |
10:33:47.29 |
+06:18:40.3 |
HIP 51667 |
7.63 |
| 2026-08-10 00:00 |
10:34:01.91 |
+06:17:25.7 |
HIP 51667 |
11.45 |
| 2026-08-10 12:00 |
10:34:16.55 |
+06:16:10.7 |
HIP 51667 |
15.29 |
| 2026-08-11 00:00 |
10:34:31.23 |
+06:14:55.5 |
HIP 51667 |
19.14 |
| 2026-08-11 12:00 |
10:34:45.92 |
+06:13:40.0 |
HIP 51667 |
23.00 |
| 2026-08-12 00:00 |
10:35:00.65 |
+06:12:24.2 |
HIP 51829 |
24.42 |
| 2026-08-12 12:00 |
10:35:15.40 |
+06:11:08.2 |
HIP 51829 |
22.73 |
| 2026-08-13 00:00 |
10:35:30.17 |
+06:09:51.9 |
HIP 51829 |
21.61 |
| 2026-08-13 12:00 |
10:35:44.97 |
+06:08:35.4 |
HIP 51829 |
21.15 |
| 2026-08-14 00:00 |
10:35:59.79 |
+06:07:18.6 |
HIP 51829 |
21.40 |
| 2026-08-14 12:00 |
10:36:14.63 |
+06:06:01.5 |
HIP 51829 |
22.34 |
| 2026-08-15 00:00 |
10:36:29.50 |
+06:04:44.3 |
HIP 51829 |
23.89 |
| 2026-08-15 12:00 |
10:36:44.39 |
+06:03:26.7 |
HIP 51829 |
25.95 |
| 2026-08-16 00:00 |
10:36:59.30 |
+06:02:09.0 |
HIP 52075 |
23.15 |
| 2026-08-16 12:00 |
10:37:14.22 |
+06:00:51.0 |
HIP 52075 |
19.22 |
| 2026-08-17 00:00 |
10:37:29.17 |
+05:59:32.7 |
HIP 52075 |
15.28 |
| 2026-08-17 12:00 |
10:37:44.14 |
+05:58:14.3 |
HIP 52075 |
11.34 |
| 2026-08-18 00:00 |
10:37:59.12 |
+05:56:55.6 |
HIP 52075 |
7.39 |
| 2026-08-18 12:00 |
10:38:14.13 |
+05:55:36.7 |
HIP 52075 |
3.45 |
| 2026-08-19 00:00 |
10:38:29.15 |
+05:54:17.6 |
HIP 52075 |
0.65 |