메타데이터
| 항목 |
값 |
| Designation |
C/1968 Q2 (Honda) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1968-11-03T20:03:50.408640Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:19Z |
| Obs used |
35 |
| NEO |
- |
| M1 |
6.600 |
| K1 |
33.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1968-10-22.0000000 |
| e |
1.00000000 |
| q (au) |
1.099008 |
| a (au) |
- |
| i (deg) |
127.912524 |
| Ω (om, deg) |
253.292861 |
| ω (w, deg) |
282.803926 |
| M (ma, deg) |
- |
밝기
산란 + 전체 선형
$$
M_a = (7.086 + 3.394\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.086 |
| n |
3.394 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| 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) |
| 2026-05-12 00:00 |
12:56:42.98 |
+52:52:13.3 |
HIP 63103 |
11.90 |
| 2026-05-12 12:00 |
12:56:41.16 |
+52:52:06.4 |
HIP 63103 |
11.61 |
| 2026-05-13 00:00 |
12:56:39.35 |
+52:51:59.5 |
HIP 63103 |
11.33 |
| 2026-05-13 12:00 |
12:56:37.55 |
+52:51:52.3 |
HIP 63103 |
11.05 |
| 2026-05-14 00:00 |
12:56:35.77 |
+52:51:45.1 |
HIP 63103 |
10.77 |
| 2026-05-14 12:00 |
12:56:34.00 |
+52:51:37.6 |
HIP 63103 |
10.48 |
| 2026-05-15 00:00 |
12:56:32.24 |
+52:51:30.1 |
HIP 63103 |
10.20 |
| 2026-05-15 12:00 |
12:56:30.49 |
+52:51:22.4 |
HIP 63103 |
9.92 |
| 2026-05-16 00:00 |
12:56:28.75 |
+52:51:14.5 |
HIP 63103 |
9.64 |
| 2026-05-16 12:00 |
12:56:27.02 |
+52:51:06.5 |
HIP 63103 |
9.36 |
| 2026-05-17 00:00 |
12:56:25.31 |
+52:50:58.3 |
HIP 63103 |
9.08 |
| 2026-05-17 12:00 |
12:56:23.61 |
+52:50:50.0 |
HIP 63103 |
8.80 |
| 2026-05-18 00:00 |
12:56:21.93 |
+52:50:41.6 |
HIP 63103 |
8.53 |
| 2026-05-18 12:00 |
12:56:20.25 |
+52:50:33.0 |
HIP 63103 |
8.25 |
| 2026-05-19 00:00 |
12:56:18.59 |
+52:50:24.3 |
HIP 63103 |
7.97 |
| 2026-05-19 12:00 |
12:56:16.94 |
+52:50:15.5 |
HIP 63103 |
7.69 |
| 2026-05-20 00:00 |
12:56:15.31 |
+52:50:06.5 |
HIP 63103 |
7.42 |
| 2026-05-20 12:00 |
12:56:13.68 |
+52:49:57.3 |
HIP 63103 |
7.14 |
| 2026-05-21 00:00 |
12:56:12.08 |
+52:49:48.1 |
HIP 63103 |
6.86 |
| 2026-05-21 12:00 |
12:56:10.48 |
+52:49:38.6 |
HIP 63103 |
6.59 |
| 2026-05-22 00:00 |
12:56:08.90 |
+52:49:29.1 |
HIP 63103 |
6.32 |
| 2026-05-22 12:00 |
12:56:07.33 |
+52:49:19.4 |
HIP 63103 |
6.04 |
| 2026-05-23 00:00 |
12:56:05.78 |
+52:49:09.6 |
HIP 63103 |
5.77 |
| 2026-05-23 12:00 |
12:56:04.24 |
+52:48:59.7 |
HIP 63103 |
5.50 |
| 2026-05-24 00:00 |
12:56:02.71 |
+52:48:49.6 |
HIP 63103 |
5.23 |
| 2026-05-24 12:00 |
12:56:01.20 |
+52:48:39.4 |
HIP 63103 |
4.96 |
| 2026-05-25 00:00 |
12:55:59.70 |
+52:48:29.0 |
HIP 63103 |
4.69 |
| 2026-05-25 12:00 |
12:55:58.21 |
+52:48:18.6 |
HIP 63103 |
4.42 |
| 2026-05-26 00:00 |
12:55:56.75 |
+52:48:08.0 |
HIP 63103 |
4.15 |
| 2026-05-26 12:00 |
12:55:55.29 |
+52:47:57.3 |
HIP 63103 |
3.89 |
| 2026-05-27 00:00 |
12:55:53.85 |
+52:47:46.4 |
HIP 63103 |
3.63 |
| 2026-05-27 12:00 |
12:55:52.42 |
+52:47:35.5 |
HIP 63103 |
3.37 |
| 2026-05-28 00:00 |
12:55:51.01 |
+52:47:24.4 |
HIP 63103 |
3.11 |
| 2026-05-28 12:00 |
12:55:49.61 |
+52:47:13.1 |
HIP 63103 |
2.86 |
| 2026-05-29 00:00 |
12:55:48.23 |
+52:47:01.8 |
HIP 63103 |
2.61 |
| 2026-05-29 12:00 |
12:55:46.87 |
+52:46:50.3 |
HIP 63103 |
2.36 |
| 2026-05-30 00:00 |
12:55:45.51 |
+52:46:38.7 |
HIP 63103 |
2.13 |
| 2026-05-30 12:00 |
12:55:44.18 |
+52:46:27.0 |
HIP 63103 |
1.90 |
| 2026-05-31 00:00 |
12:55:42.85 |
+52:46:15.2 |
HIP 63103 |
1.70 |
| 2026-05-31 12:00 |
12:55:41.55 |
+52:46:03.3 |
HIP 63103 |
1.51 |
| 2026-06-01 00:00 |
12:55:40.26 |
+52:45:51.2 |
HIP 63103 |
1.35 |
| 2026-06-01 12:00 |
12:55:38.98 |
+52:45:39.0 |
HIP 63103 |
1.23 |
| 2026-06-02 00:00 |
12:55:37.72 |
+52:45:26.7 |
HIP 63103 |
1.17 |