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) |
| 2026-09-20 00:00 |
22:31:16.43 |
-58:05:26.2 |
HIP 111201 |
18.38 |
| 2026-09-20 12:00 |
22:31:00.74 |
-58:04:05.8 |
HIP 111201 |
20.16 |
| 2026-09-21 00:00 |
22:30:45.16 |
-58:02:44.1 |
HIP 111201 |
22.08 |
| 2026-09-21 12:00 |
22:30:29.70 |
-58:01:21.1 |
HIP 110887 |
21.30 |
| 2026-09-22 00:00 |
22:30:14.34 |
-57:59:56.8 |
HIP 110887 |
19.77 |
| 2026-09-22 12:00 |
22:29:59.11 |
-57:58:31.1 |
HIP 110866 |
18.33 |
| 2026-09-23 00:00 |
22:29:43.99 |
-57:57:04.2 |
HIP 110866 |
16.61 |
| 2026-09-23 12:00 |
22:29:28.99 |
-57:55:36.0 |
HIP 110866 |
15.11 |
| 2026-09-24 00:00 |
22:29:14.11 |
-57:54:06.5 |
HIP 110930 |
13.59 |
| 2026-09-24 12:00 |
22:28:59.35 |
-57:52:35.7 |
HIP 110930 |
11.43 |
| 2026-09-25 00:00 |
22:28:44.72 |
-57:51:03.7 |
HIP 110930 |
9.41 |
| 2026-09-25 12:00 |
22:28:30.21 |
-57:49:30.4 |
HIP 110930 |
7.64 |
| 2026-09-26 00:00 |
22:28:15.83 |
-57:47:55.9 |
HIP 110930 |
6.35 |
| 2026-09-26 12:00 |
22:28:01.57 |
-57:46:20.1 |
HIP 110930 |
5.85 |
| 2026-09-27 00:00 |
22:27:47.45 |
-57:44:43.1 |
HIP 110930 |
6.33 |
| 2026-09-27 12:00 |
22:27:33.46 |
-57:43:04.9 |
HIP 110930 |
7.62 |
| 2026-09-28 00:00 |
22:27:19.59 |
-57:41:25.4 |
HIP 110930 |
9.39 |
| 2026-09-28 12:00 |
22:27:05.87 |
-57:39:44.8 |
HIP 110930 |
11.42 |
| 2026-09-29 00:00 |
22:26:52.27 |
-57:38:02.9 |
HIP 110930 |
13.59 |
| 2026-09-29 12:00 |
22:26:38.82 |
-57:36:19.9 |
HIP 110930 |
15.84 |
| 2026-09-30 00:00 |
22:26:25.50 |
-57:34:35.6 |
HIP 110649 |
17.80 |
| 2026-09-30 12:00 |
22:26:12.32 |
-57:32:50.2 |
HIP 110649 |
18.09 |
| 2026-10-01 00:00 |
22:25:59.28 |
-57:31:03.6 |
HIP 110649 |
18.74 |
| 2026-10-01 12:00 |
22:25:46.38 |
-57:29:15.8 |
HIP 110649 |
19.71 |
| 2026-10-02 00:00 |
22:25:33.62 |
-57:27:26.9 |
HIP 110649 |
20.96 |
| 2026-10-02 12:00 |
22:25:21.01 |
-57:25:36.8 |
HIP 110534 |
19.19 |
| 2026-10-03 00:00 |
22:25:08.54 |
-57:23:45.6 |
HIP 110534 |
16.72 |
| 2026-10-03 12:00 |
22:24:56.22 |
-57:21:53.2 |
HIP 110534 |
14.25 |
| 2026-10-04 00:00 |
22:24:44.05 |
-57:19:59.8 |
HIP 110534 |
11.81 |
| 2026-10-04 12:00 |
22:24:32.02 |
-57:18:05.2 |
HIP 110534 |
9.40 |
| 2026-10-05 00:00 |
22:24:20.15 |
-57:16:09.4 |
HIP 110534 |
7.08 |
| 2026-10-05 12:00 |
22:24:08.42 |
-57:14:12.6 |
HIP 110534 |
4.95 |
| 2026-10-06 00:00 |
22:23:56.85 |
-57:12:14.7 |
HIP 110534 |
3.41 |
| 2026-10-06 12:00 |
22:23:45.43 |
-57:10:15.7 |
HIP 110534 |
3.39 |
| 2026-10-07 00:00 |
22:23:34.17 |
-57:08:15.6 |
HIP 110534 |
4.93 |
| 2026-10-07 12:00 |
22:23:23.06 |
-57:06:14.5 |
HIP 110534 |
7.06 |
| 2026-10-08 00:00 |
22:23:12.10 |
-57:04:12.3 |
HIP 110534 |
9.40 |
| 2026-10-08 12:00 |
22:23:01.31 |
-57:02:09.0 |
HIP 110534 |
11.82 |
| 2026-10-09 00:00 |
22:22:50.67 |
-57:00:04.7 |
HIP 110534 |
14.29 |
| 2026-10-09 12:00 |
22:22:40.19 |
-56:57:59.4 |
HIP 110534 |
16.78 |
| 2026-10-10 00:00 |
22:22:29.88 |
-56:55:53.0 |
HIP 110534 |
19.29 |
| 2026-10-10 12:00 |
22:22:19.72 |
-56:53:45.7 |
HIP 110534 |
21.81 |
| 2026-10-11 00:00 |
22:22:09.72 |
-56:51:37.3 |
HIP 110534 |
24.33 |