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) |
| 2026-07-29 00:00 |
21:53:03.37 |
-15:53:44.0 |
HIP 108078 |
30.46 |
| 2026-07-29 12:00 |
21:52:53.50 |
-15:54:39.6 |
HIP 108078 |
32.28 |
| 2026-07-30 00:00 |
21:52:43.57 |
-15:55:35.3 |
HIP 108078 |
34.20 |
| 2026-07-30 12:00 |
21:52:33.58 |
-15:56:31.2 |
HIP 107805 |
34.85 |
| 2026-07-31 00:00 |
21:52:23.54 |
-15:57:27.2 |
HIP 107805 |
32.27 |
| 2026-07-31 12:00 |
21:52:13.45 |
-15:58:23.3 |
HIP 107805 |
29.68 |
| 2026-08-01 00:00 |
21:52:03.30 |
-15:59:19.5 |
HIP 107805 |
27.09 |
| 2026-08-01 12:00 |
21:51:53.11 |
-16:00:15.8 |
HIP 107805 |
24.48 |
| 2026-08-02 00:00 |
21:51:42.87 |
-16:01:12.2 |
HIP 107805 |
21.87 |
| 2026-08-02 12:00 |
21:51:32.59 |
-16:02:08.7 |
HIP 107805 |
19.26 |
| 2026-08-03 00:00 |
21:51:22.26 |
-16:03:05.2 |
HIP 107805 |
16.64 |
| 2026-08-03 12:00 |
21:51:11.89 |
-16:04:01.8 |
HIP 107805 |
14.03 |
| 2026-08-04 00:00 |
21:51:01.47 |
-16:04:58.5 |
HIP 107805 |
11.44 |
| 2026-08-04 12:00 |
21:50:51.01 |
-16:05:55.2 |
HIP 107805 |
8.89 |
| 2026-08-05 00:00 |
21:50:40.52 |
-16:06:51.9 |
HIP 107805 |
6.44 |
| 2026-08-05 12:00 |
21:50:29.99 |
-16:07:48.7 |
HIP 107805 |
4.29 |
| 2026-08-06 00:00 |
21:50:19.42 |
-16:08:45.5 |
HIP 107805 |
3.14 |
| 2026-08-06 12:00 |
21:50:08.82 |
-16:09:42.3 |
HIP 107805 |
4.01 |
| 2026-08-07 00:00 |
21:49:58.19 |
-16:10:39.1 |
HIP 107805 |
6.10 |
| 2026-08-07 12:00 |
21:49:47.53 |
-16:11:35.9 |
HIP 107805 |
8.55 |
| 2026-08-08 00:00 |
21:49:36.83 |
-16:12:32.7 |
HIP 107805 |
11.15 |
| 2026-08-08 12:00 |
21:49:26.11 |
-16:13:29.4 |
HIP 107805 |
13.80 |
| 2026-08-09 00:00 |
21:49:15.37 |
-16:14:26.1 |
HIP 107805 |
16.49 |
| 2026-08-09 12:00 |
21:49:04.60 |
-16:15:22.8 |
HIP 107805 |
19.20 |
| 2026-08-10 00:00 |
21:48:53.80 |
-16:16:19.4 |
HIP 107618 |
19.11 |
| 2026-08-10 12:00 |
21:48:42.99 |
-16:17:16.0 |
HIP 107618 |
17.76 |
| 2026-08-11 00:00 |
21:48:32.16 |
-16:18:12.5 |
HIP 107618 |
16.76 |
| 2026-08-11 12:00 |
21:48:21.31 |
-16:19:08.9 |
HIP 107618 |
16.17 |
| 2026-08-12 00:00 |
21:48:10.44 |
-16:20:05.2 |
HIP 107618 |
16.05 |
| 2026-08-12 12:00 |
21:47:59.56 |
-16:21:01.4 |
HIP 107618 |
16.39 |
| 2026-08-13 00:00 |
21:47:48.67 |
-16:21:57.5 |
HIP 107618 |
17.19 |
| 2026-08-13 12:00 |
21:47:37.77 |
-16:22:53.5 |
HIP 107556 |
17.51 |
| 2026-08-14 00:00 |
21:47:26.86 |
-16:23:49.4 |
HIP 107556 |
17.27 |
| 2026-08-14 12:00 |
21:47:15.95 |
-16:24:45.1 |
HIP 107556 |
17.47 |
| 2026-08-15 00:00 |
21:47:05.03 |
-16:25:40.6 |
HIP 107556 |
18.10 |
| 2026-08-15 12:00 |
21:46:54.11 |
-16:26:36.1 |
HIP 107556 |
19.11 |
| 2026-08-16 00:00 |
21:46:43.18 |
-16:27:31.3 |
HIP 107556 |
20.45 |
| 2026-08-16 12:00 |
21:46:32.26 |
-16:28:26.4 |
HIP 107590 |
21.97 |
| 2026-08-17 00:00 |
21:46:21.34 |
-16:29:21.2 |
HIP 107590 |
23.01 |
| 2026-08-17 12:00 |
21:46:10.43 |
-16:30:15.9 |
HIP 107359 |
21.24 |
| 2026-08-18 00:00 |
21:45:59.52 |
-16:31:10.4 |
HIP 107359 |
18.59 |
| 2026-08-18 12:00 |
21:45:48.61 |
-16:32:04.7 |
HIP 107359 |
15.98 |
| 2026-08-19 00:00 |
21:45:37.72 |
-16:32:58.8 |
HIP 107359 |
13.43 |