메타데이터
| 항목 |
값 |
| Designation |
C/2023 H3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-02-18T22:29:26.165760Z |
| Orbit solution date (soln_date, UTC) |
2026-04-27T13:42:19Z |
| Obs used |
82 |
| NEO |
- |
| M1 |
14.000 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-04-28T09:29:59.020800Z |
| Discovery magnitude (MPC) |
20.89 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2023-12-27.0000000 |
| e |
0.61615996 |
| q (au) |
5.232462 |
| a (au) |
13.631882 |
| i (deg) |
2.489026 |
| Ω (om, deg) |
55.102514 |
| ω (w, deg) |
193.320297 |
| M (ma, deg) |
358.943771 |
밝기
산란 + 전체 선형
$$
M_a = (12.936 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.936 |
| n |
2.000 |
| gf |
0.997 |
| gb |
-0.935 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
21:35:31.55 |
-17:17:48.8 |
HIP 106522 |
34.03 |
| 2026-09-20 12:00 |
21:35:24.53 |
-17:18:14.7 |
HIP 106522 |
32.97 |
| 2026-09-21 00:00 |
21:35:17.61 |
-17:18:39.9 |
HIP 106522 |
31.99 |
| 2026-09-21 12:00 |
21:35:10.79 |
-17:19:04.6 |
HIP 106522 |
31.09 |
| 2026-09-22 00:00 |
21:35:04.08 |
-17:19:28.6 |
HIP 106522 |
30.27 |
| 2026-09-22 12:00 |
21:34:57.48 |
-17:19:52.1 |
HIP 106522 |
29.54 |
| 2026-09-23 00:00 |
21:34:50.98 |
-17:20:14.9 |
HIP 106522 |
28.89 |
| 2026-09-23 12:00 |
21:34:44.58 |
-17:20:37.2 |
HIP 106522 |
28.33 |
| 2026-09-24 00:00 |
21:34:38.30 |
-17:20:58.8 |
HIP 106522 |
27.85 |
| 2026-09-24 12:00 |
21:34:32.12 |
-17:21:19.8 |
HIP 106522 |
27.47 |
| 2026-09-25 00:00 |
21:34:26.06 |
-17:21:40.2 |
HIP 106522 |
27.17 |
| 2026-09-25 12:00 |
21:34:20.10 |
-17:22:00.0 |
HIP 106522 |
26.96 |
| 2026-09-26 00:00 |
21:34:14.25 |
-17:22:19.2 |
HIP 106522 |
26.83 |
| 2026-09-26 12:00 |
21:34:08.52 |
-17:22:37.8 |
HIP 106522 |
26.79 |
| 2026-09-27 00:00 |
21:34:02.89 |
-17:22:55.7 |
HIP 106522 |
26.82 |
| 2026-09-27 12:00 |
21:33:57.38 |
-17:23:13.1 |
HIP 106522 |
26.92 |
| 2026-09-28 00:00 |
21:33:51.99 |
-17:23:29.8 |
HIP 106522 |
27.08 |
| 2026-09-28 12:00 |
21:33:46.70 |
-17:23:45.9 |
HIP 106522 |
27.31 |
| 2026-09-29 00:00 |
21:33:41.54 |
-17:24:01.3 |
HIP 106522 |
27.59 |
| 2026-09-29 12:00 |
21:33:36.48 |
-17:24:16.2 |
HIP 106522 |
27.93 |
| 2026-09-30 00:00 |
21:33:31.55 |
-17:24:30.4 |
HIP 106470 |
28.05 |
| 2026-09-30 12:00 |
21:33:26.73 |
-17:24:44.0 |
HIP 106470 |
28.06 |
| 2026-10-01 00:00 |
21:33:22.03 |
-17:24:56.9 |
HIP 106470 |
28.12 |
| 2026-10-01 12:00 |
21:33:17.44 |
-17:25:09.3 |
HIP 106470 |
28.23 |
| 2026-10-02 00:00 |
21:33:12.98 |
-17:25:21.0 |
HIP 106470 |
28.38 |
| 2026-10-02 12:00 |
21:33:08.63 |
-17:25:32.0 |
HIP 106470 |
28.57 |
| 2026-10-03 00:00 |
21:33:04.41 |
-17:25:42.5 |
HIP 106251 |
27.99 |
| 2026-10-03 12:00 |
21:33:00.30 |
-17:25:52.3 |
HIP 106251 |
27.14 |
| 2026-10-04 00:00 |
21:32:56.32 |
-17:26:01.4 |
HIP 106251 |
26.33 |
| 2026-10-04 12:00 |
21:32:52.45 |
-17:26:09.9 |
HIP 106251 |
25.54 |
| 2026-10-05 00:00 |
21:32:48.71 |
-17:26:17.8 |
HIP 106251 |
24.79 |
| 2026-10-05 12:00 |
21:32:45.10 |
-17:26:25.0 |
HIP 106251 |
24.07 |
| 2026-10-06 00:00 |
21:32:41.60 |
-17:26:31.6 |
HIP 106251 |
23.37 |
| 2026-10-06 12:00 |
21:32:38.23 |
-17:26:37.6 |
HIP 106251 |
22.72 |
| 2026-10-07 00:00 |
21:32:34.99 |
-17:26:42.9 |
HIP 106251 |
22.09 |
| 2026-10-07 12:00 |
21:32:31.87 |
-17:26:47.5 |
HIP 106251 |
21.49 |
| 2026-10-08 00:00 |
21:32:28.88 |
-17:26:51.5 |
HIP 106251 |
20.92 |
| 2026-10-08 12:00 |
21:32:26.01 |
-17:26:54.9 |
HIP 106251 |
20.37 |
| 2026-10-09 00:00 |
21:32:23.27 |
-17:26:57.6 |
HIP 106251 |
19.86 |
| 2026-10-09 12:00 |
21:32:20.66 |
-17:26:59.6 |
HIP 106251 |
19.37 |
| 2026-10-10 00:00 |
21:32:18.17 |
-17:27:01.0 |
HIP 106251 |
18.91 |
| 2026-10-10 12:00 |
21:32:15.81 |
-17:27:01.8 |
HIP 106251 |
18.47 |
| 2026-10-11 00:00 |
21:32:13.58 |
-17:27:01.9 |
HIP 106251 |
18.06 |