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
$$
M_a = (6.285 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.285 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.833 |
| k |
0.800 |
| δ90 |
9.425 |
| 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) |
| 2026-05-12 00:00 |
23:03:53.83 |
-55:12:26.3 |
HIP 113842 |
5.91 |
| 2026-05-12 12:00 |
23:04:05.93 |
-55:13:06.5 |
HIP 113842 |
7.75 |
| 2026-05-13 00:00 |
23:04:17.88 |
-55:13:47.4 |
HIP 113842 |
9.59 |
| 2026-05-13 12:00 |
23:04:29.69 |
-55:14:29.2 |
HIP 113842 |
11.41 |
| 2026-05-14 00:00 |
23:04:41.35 |
-55:15:11.9 |
HIP 113842 |
13.22 |
| 2026-05-14 12:00 |
23:04:52.87 |
-55:15:55.3 |
HIP 113842 |
15.01 |
| 2026-05-15 00:00 |
23:05:04.24 |
-55:16:39.6 |
HIP 113842 |
16.79 |
| 2026-05-15 12:00 |
23:05:15.46 |
-55:17:24.7 |
HIP 113921 |
18.32 |
| 2026-05-16 00:00 |
23:05:26.54 |
-55:18:10.6 |
HIP 113921 |
19.79 |
| 2026-05-16 12:00 |
23:05:37.46 |
-55:18:57.2 |
HIP 114151 |
18.66 |
| 2026-05-17 00:00 |
23:05:48.24 |
-55:19:44.7 |
HIP 114151 |
17.07 |
| 2026-05-17 12:00 |
23:05:58.86 |
-55:20:33.0 |
HIP 114151 |
15.50 |
| 2026-05-18 00:00 |
23:06:09.34 |
-55:21:22.1 |
HIP 114151 |
13.97 |
| 2026-05-18 12:00 |
23:06:19.66 |
-55:22:11.9 |
HIP 114151 |
12.48 |
| 2026-05-19 00:00 |
23:06:29.83 |
-55:23:02.5 |
HIP 114151 |
11.05 |
| 2026-05-19 12:00 |
23:06:39.85 |
-55:23:53.9 |
HIP 114151 |
9.69 |
| 2026-05-20 00:00 |
23:06:49.72 |
-55:24:46.0 |
HIP 114151 |
8.43 |
| 2026-05-20 12:00 |
23:06:59.43 |
-55:25:38.9 |
HIP 114151 |
7.31 |
| 2026-05-21 00:00 |
23:07:08.98 |
-55:26:32.5 |
HIP 114151 |
6.41 |
| 2026-05-21 12:00 |
23:07:18.38 |
-55:27:26.9 |
HIP 114151 |
5.81 |
| 2026-05-22 00:00 |
23:07:27.63 |
-55:28:22.0 |
HIP 114151 |
5.59 |
| 2026-05-22 12:00 |
23:07:36.72 |
-55:29:17.8 |
HIP 114151 |
5.80 |
| 2026-05-23 00:00 |
23:07:45.65 |
-55:30:14.3 |
HIP 114151 |
6.38 |
| 2026-05-23 12:00 |
23:07:54.42 |
-55:31:11.5 |
HIP 114151 |
7.24 |
| 2026-05-24 00:00 |
23:08:03.04 |
-55:32:09.5 |
HIP 114151 |
8.28 |
| 2026-05-24 12:00 |
23:08:11.49 |
-55:33:08.1 |
HIP 114151 |
9.45 |
| 2026-05-25 00:00 |
23:08:19.79 |
-55:34:07.4 |
HIP 114151 |
10.68 |
| 2026-05-25 12:00 |
23:08:27.93 |
-55:35:07.4 |
HIP 114151 |
11.97 |
| 2026-05-26 00:00 |
23:08:35.91 |
-55:36:08.1 |
HIP 114151 |
13.28 |
| 2026-05-26 12:00 |
23:08:43.73 |
-55:37:09.4 |
HIP 114151 |
14.62 |
| 2026-05-27 00:00 |
23:08:51.38 |
-55:38:11.4 |
HIP 114151 |
15.96 |
| 2026-05-27 12:00 |
23:08:58.88 |
-55:39:14.0 |
HIP 114151 |
17.31 |
| 2026-05-28 00:00 |
23:09:06.21 |
-55:40:17.3 |
HIP 114151 |
18.67 |
| 2026-05-28 12:00 |
23:09:13.38 |
-55:41:21.3 |
HIP 114151 |
20.03 |
| 2026-05-29 00:00 |
23:09:20.39 |
-55:42:25.8 |
HIP 114151 |
21.38 |
| 2026-05-29 12:00 |
23:09:27.23 |
-55:43:31.0 |
HIP 114188 |
21.47 |
| 2026-05-30 00:00 |
23:09:33.91 |
-55:44:36.8 |
HIP 114188 |
21.57 |
| 2026-05-30 12:00 |
23:09:40.43 |
-55:45:43.2 |
HIP 114188 |
21.73 |
| 2026-05-31 00:00 |
23:09:46.78 |
-55:46:50.2 |
HIP 114188 |
21.97 |
| 2026-05-31 12:00 |
23:09:52.96 |
-55:47:57.8 |
HIP 114188 |
22.26 |
| 2026-06-01 00:00 |
23:09:58.98 |
-55:49:06.0 |
HIP 114188 |
22.62 |
| 2026-06-01 12:00 |
23:10:04.83 |
-55:50:14.7 |
HIP 114188 |
23.03 |
| 2026-06-02 00:00 |
23:10:10.51 |
-55:51:24.1 |
HIP 114188 |
23.49 |