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 |
1.000 |
| 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) |
| 2026-03-26 00:00 |
10:13:51.95 |
+06:43:29.2 |
HIP 50178 |
17.82 |
| 2026-03-26 12:00 |
10:13:42.26 |
+06:44:44.0 |
HIP 50178 |
18.39 |
| 2026-03-27 00:00 |
10:13:32.67 |
+06:45:58.4 |
HIP 49999 |
17.39 |
| 2026-03-27 12:00 |
10:13:23.16 |
+06:47:12.4 |
HIP 49999 |
15.72 |
| 2026-03-28 00:00 |
10:13:13.74 |
+06:48:26.0 |
HIP 49999 |
14.36 |
| 2026-03-28 12:00 |
10:13:04.41 |
+06:49:39.1 |
HIP 49999 |
13.41 |
| 2026-03-29 00:00 |
10:12:55.17 |
+06:50:51.9 |
HIP 49999 |
12.93 |
| 2026-03-29 12:00 |
10:12:46.01 |
+06:52:04.2 |
HIP 49999 |
12.96 |
| 2026-03-30 00:00 |
10:12:36.96 |
+06:53:16.1 |
HIP 49999 |
13.49 |
| 2026-03-30 12:00 |
10:12:27.99 |
+06:54:27.5 |
HIP 49999 |
14.45 |
| 2026-03-31 00:00 |
10:12:19.11 |
+06:55:38.5 |
HIP 49999 |
15.75 |
| 2026-03-31 12:00 |
10:12:10.33 |
+06:56:49.1 |
HIP 49999 |
17.31 |
| 2026-04-01 00:00 |
10:12:01.65 |
+06:57:59.2 |
HIP 49999 |
19.04 |
| 2026-04-01 12:00 |
10:11:53.06 |
+06:59:08.8 |
HIP 49999 |
20.90 |
| 2026-04-02 00:00 |
10:11:44.57 |
+07:00:17.9 |
HIP 49999 |
22.85 |
| 2026-04-02 12:00 |
10:11:36.18 |
+07:01:26.6 |
HIP 49999 |
24.86 |
| 2026-04-03 00:00 |
10:11:27.88 |
+07:02:34.8 |
HIP 49999 |
26.91 |
| 2026-04-03 12:00 |
10:11:19.68 |
+07:03:42.5 |
HIP 49999 |
28.98 |
| 2026-04-04 00:00 |
10:11:11.59 |
+07:04:49.8 |
HIP 49999 |
31.07 |
| 2026-04-04 12:00 |
10:11:03.59 |
+07:05:56.5 |
HIP 49999 |
33.17 |
| 2026-04-05 00:00 |
10:10:55.70 |
+07:07:02.7 |
HIP 49861 |
34.63 |
| 2026-04-05 12:00 |
10:10:47.90 |
+07:08:08.4 |
HIP 49861 |
33.58 |
| 2026-04-06 00:00 |
10:10:40.22 |
+07:09:13.6 |
HIP 49861 |
32.64 |
| 2026-04-06 12:00 |
10:10:32.63 |
+07:10:18.3 |
HIP 49861 |
31.84 |
| 2026-04-07 00:00 |
10:10:25.15 |
+07:11:22.5 |
HIP 49861 |
31.16 |
| 2026-04-07 12:00 |
10:10:17.77 |
+07:12:26.1 |
HIP 49861 |
30.63 |
| 2026-04-08 00:00 |
10:10:10.51 |
+07:13:29.2 |
HIP 49861 |
30.23 |
| 2026-04-08 12:00 |
10:10:03.34 |
+07:14:31.8 |
HIP 49861 |
29.96 |
| 2026-04-09 00:00 |
10:09:56.29 |
+07:15:33.8 |
HIP 49861 |
29.84 |
| 2026-04-09 12:00 |
10:09:49.34 |
+07:16:35.3 |
HIP 49667 |
28.19 |
| 2026-04-10 00:00 |
10:09:42.50 |
+07:17:36.2 |
HIP 49667 |
26.24 |
| 2026-04-10 12:00 |
10:09:35.77 |
+07:18:36.6 |
HIP 49667 |
24.31 |
| 2026-04-11 00:00 |
10:09:29.15 |
+07:19:36.4 |
HIP 49667 |
22.42 |
| 2026-04-11 12:00 |
10:09:22.65 |
+07:20:35.6 |
HIP 49667 |
20.56 |
| 2026-04-12 00:00 |
10:09:16.25 |
+07:21:34.3 |
HIP 49667 |
18.73 |
| 2026-04-12 12:00 |
10:09:09.96 |
+07:22:32.3 |
HIP 49667 |
16.93 |
| 2026-04-13 00:00 |
10:09:03.79 |
+07:23:29.8 |
HIP 49667 |
15.18 |
| 2026-04-13 12:00 |
10:08:57.73 |
+07:24:26.7 |
HIP 49667 |
13.46 |
| 2026-04-14 00:00 |
10:08:51.79 |
+07:25:23.1 |
HIP 49667 |
11.78 |
| 2026-04-14 12:00 |
10:08:45.95 |
+07:26:18.8 |
HIP 49667 |
10.15 |
| 2026-04-15 00:00 |
10:08:40.24 |
+07:27:13.9 |
HIP 49667 |
8.58 |
| 2026-04-15 12:00 |
10:08:34.64 |
+07:28:08.4 |
HIP 49667 |
7.09 |
| 2026-04-16 00:00 |
10:08:29.15 |
+07:29:02.3 |
HIP 49667 |
5.71 |