메타데이터
| 항목 |
값 |
| Designation |
C/2022 H1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-01-19T11:06:56.177280Z |
| Orbit solution date (soln_date, UTC) |
2025-06-26T10:12:45Z |
| Obs used |
74 |
| NEO |
- |
| M1 |
10.200 |
| K1 |
5.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-04-21T08:36:18.201600Z |
| Discovery magnitude (MPC) |
20.66 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-09-07.0000000 |
| e |
0.99347679 |
| q (au) |
7.689370 |
| a (au) |
1178.770272 |
| i (deg) |
49.866897 |
| Ω (om, deg) |
6.365450 |
| ω (w, deg) |
246.327042 |
| M (ma, deg) |
359.987836 |
밝기
산란 + 전체 선형
$$
M_a = (6.290 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.290 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.833 |
| 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) |
| 2026-07-29 00:00 |
23:01:35.00 |
-58:18:37.8 |
HIP 113647 |
8.84 |
| 2026-07-29 12:00 |
23:01:20.85 |
-58:19:34.1 |
HIP 113647 |
7.18 |
| 2026-07-30 00:00 |
23:01:06.57 |
-58:20:29.5 |
HIP 113647 |
5.81 |
| 2026-07-30 12:00 |
23:00:52.17 |
-58:21:24.0 |
HIP 113647 |
4.99 |
| 2026-07-31 00:00 |
23:00:37.63 |
-58:22:17.6 |
HIP 113647 |
5.00 |
| 2026-07-31 12:00 |
23:00:22.97 |
-58:23:10.2 |
HIP 113647 |
5.85 |
| 2026-08-01 00:00 |
23:00:08.18 |
-58:24:01.9 |
HIP 113647 |
7.25 |
| 2026-08-01 12:00 |
22:59:53.27 |
-58:24:52.6 |
HIP 113647 |
8.96 |
| 2026-08-02 00:00 |
22:59:38.23 |
-58:25:42.4 |
HIP 113647 |
10.83 |
| 2026-08-02 12:00 |
22:59:23.08 |
-58:26:31.2 |
HIP 113647 |
12.80 |
| 2026-08-03 00:00 |
22:59:07.80 |
-58:27:19.0 |
HIP 113647 |
14.83 |
| 2026-08-03 12:00 |
22:58:52.41 |
-58:28:05.7 |
HIP 113647 |
16.91 |
| 2026-08-04 00:00 |
22:58:36.91 |
-58:28:51.5 |
HIP 113647 |
19.01 |
| 2026-08-04 12:00 |
22:58:21.29 |
-58:29:36.2 |
HIP 113647 |
21.14 |
| 2026-08-05 00:00 |
22:58:05.56 |
-58:30:19.9 |
HIP 113647 |
23.28 |
| 2026-08-05 12:00 |
22:57:49.73 |
-58:31:02.5 |
HIP 113647 |
25.44 |
| 2026-08-06 00:00 |
22:57:33.78 |
-58:31:44.0 |
HIP 113647 |
27.62 |
| 2026-08-06 12:00 |
22:57:17.73 |
-58:32:24.5 |
HIP 113647 |
29.80 |
| 2026-08-07 00:00 |
22:57:01.57 |
-58:33:03.9 |
HIP 113647 |
32.00 |
| 2026-08-07 12:00 |
22:56:45.32 |
-58:33:42.2 |
HIP 113402 |
33.08 |
| 2026-08-08 00:00 |
22:56:28.96 |
-58:34:19.3 |
HIP 113402 |
33.17 |
| 2026-08-08 12:00 |
22:56:12.51 |
-58:34:55.4 |
HIP 113402 |
33.43 |
| 2026-08-09 00:00 |
22:55:55.96 |
-58:35:30.3 |
HIP 113402 |
33.86 |
| 2026-08-09 12:00 |
22:55:39.31 |
-58:36:04.0 |
HIP 113402 |
34.44 |
| 2026-08-10 00:00 |
22:55:22.58 |
-58:36:36.6 |
HIP 113402 |
35.18 |
| 2026-08-10 12:00 |
22:55:05.76 |
-58:37:08.0 |
HIP 113402 |
36.06 |
| 2026-08-11 00:00 |
22:54:48.85 |
-58:37:38.3 |
HIP 113402 |
37.08 |
| 2026-08-11 12:00 |
22:54:31.86 |
-58:38:07.3 |
HIP 112848 |
37.92 |
| 2026-08-12 00:00 |
22:54:14.78 |
-58:38:35.1 |
HIP 112848 |
36.10 |
| 2026-08-12 12:00 |
22:53:57.63 |
-58:39:01.8 |
HIP 112848 |
34.34 |
| 2026-08-13 00:00 |
22:53:40.40 |
-58:39:27.2 |
HIP 112848 |
32.65 |
| 2026-08-13 12:00 |
22:53:23.10 |
-58:39:51.3 |
HIP 112848 |
31.04 |
| 2026-08-14 00:00 |
22:53:05.72 |
-58:40:14.3 |
HIP 112848 |
29.54 |
| 2026-08-14 12:00 |
22:52:48.27 |
-58:40:35.9 |
HIP 112848 |
28.16 |
| 2026-08-15 00:00 |
22:52:30.76 |
-58:40:56.4 |
HIP 112726 |
26.52 |
| 2026-08-15 12:00 |
22:52:13.18 |
-58:41:15.5 |
HIP 112726 |
24.47 |
| 2026-08-16 00:00 |
22:51:55.55 |
-58:41:33.4 |
HIP 112726 |
22.48 |
| 2026-08-16 12:00 |
22:51:37.85 |
-58:41:49.9 |
HIP 112726 |
20.57 |
| 2026-08-17 00:00 |
22:51:20.09 |
-58:42:05.2 |
HIP 112726 |
18.75 |
| 2026-08-17 12:00 |
22:51:02.28 |
-58:42:19.2 |
HIP 112726 |
17.07 |
| 2026-08-18 00:00 |
22:50:44.42 |
-58:42:31.9 |
HIP 112726 |
15.57 |
| 2026-08-18 12:00 |
22:50:26.51 |
-58:42:43.3 |
HIP 112726 |
14.31 |
| 2026-08-19 00:00 |
22:50:08.56 |
-58:42:53.3 |
HIP 112726 |
13.36 |