메타데이터
| 항목 |
값 |
| Designation |
C/2025 E1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2026-09-23T17:01:26.699520Z |
| Orbit solution date (soln_date, UTC) |
2026-07-06T12:12:23Z |
| Obs used |
284 |
| NEO |
- |
| M1 |
7.000 |
| K1 |
12.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2025-03-02T10:18:16.963200Z |
| Discovery magnitude (MPC) |
20.69 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2026-02-17.0000000 |
| e |
0.99753964 |
| q (au) |
3.998114 |
| a (au) |
1625.010359 |
| i (deg) |
69.060303 |
| Ω (om, deg) |
344.591823 |
| ω (w, deg) |
274.421807 |
| M (ma, deg) |
359.996709 |
밝기
산란 + 전체 선형
$$
M_a = (7.927 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.927 |
| n |
6.000 |
| gf |
0.998 |
| gb |
-0.718 |
| 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 |
09:25:05.29 |
-64:38:13.8 |
HIP 46173 |
4.37 |
| 2026-07-29 12:00 |
09:25:48.29 |
-64:41:32.6 |
HIP 46173 |
5.63 |
| 2026-07-30 00:00 |
09:26:31.57 |
-64:44:54.1 |
HIP 46173 |
10.44 |
| 2026-07-30 12:00 |
09:27:15.13 |
-64:48:18.1 |
HIP 46328 |
8.18 |
| 2026-07-31 00:00 |
09:27:58.96 |
-64:51:44.8 |
HIP 46328 |
8.90 |
| 2026-07-31 12:00 |
09:28:43.06 |
-64:55:14.0 |
HIP 46328 |
12.61 |
| 2026-08-01 00:00 |
09:29:27.45 |
-64:58:45.9 |
HIP 46328 |
17.53 |
| 2026-08-01 12:00 |
09:30:12.12 |
-65:02:20.3 |
HIP 46328 |
22.94 |
| 2026-08-02 00:00 |
09:30:57.08 |
-65:05:57.3 |
HIP 46827 |
19.49 |
| 2026-08-02 12:00 |
09:31:42.31 |
-65:09:36.8 |
HIP 46827 |
14.10 |
| 2026-08-03 00:00 |
09:32:27.84 |
-65:13:18.9 |
HIP 46827 |
9.40 |
| 2026-08-03 12:00 |
09:33:13.65 |
-65:17:03.6 |
HIP 46827 |
7.10 |
| 2026-08-04 00:00 |
09:33:59.76 |
-65:20:50.8 |
HIP 46827 |
9.29 |
| 2026-08-04 12:00 |
09:34:46.16 |
-65:24:40.5 |
HIP 46827 |
14.06 |
| 2026-08-05 00:00 |
09:35:32.86 |
-65:28:32.7 |
HIP 46814 |
19.60 |
| 2026-08-05 12:00 |
09:36:19.85 |
-65:32:27.5 |
HIP 46814 |
24.57 |
| 2026-08-06 00:00 |
09:37:07.15 |
-65:36:24.8 |
HIP 46814 |
30.04 |
| 2026-08-06 12:00 |
09:37:54.74 |
-65:40:24.6 |
HIP 47505 |
31.30 |
| 2026-08-07 00:00 |
09:38:42.64 |
-65:44:26.9 |
HIP 47505 |
25.11 |
| 2026-08-07 12:00 |
09:39:30.85 |
-65:48:31.6 |
HIP 47505 |
18.98 |
| 2026-08-08 00:00 |
09:40:19.37 |
-65:52:38.9 |
HIP 47505 |
13.08 |
| 2026-08-08 12:00 |
09:41:08.20 |
-65:56:48.6 |
HIP 47505 |
8.01 |
| 2026-08-09 00:00 |
09:41:57.35 |
-66:01:00.8 |
HIP 47505 |
6.41 |
| 2026-08-09 12:00 |
09:42:46.81 |
-66:05:15.4 |
HIP 47505 |
10.18 |
| 2026-08-10 00:00 |
09:43:36.59 |
-66:09:32.5 |
HIP 47883 |
11.79 |
| 2026-08-10 12:00 |
09:44:26.69 |
-66:13:52.0 |
HIP 47883 |
9.45 |
| 2026-08-11 00:00 |
09:45:17.12 |
-66:18:13.9 |
HIP 47883 |
11.38 |
| 2026-08-11 12:00 |
09:46:07.87 |
-66:22:38.3 |
HIP 47883 |
16.16 |
| 2026-08-12 00:00 |
09:46:58.95 |
-66:27:05.0 |
HIP 47883 |
22.04 |
| 2026-08-12 12:00 |
09:47:50.37 |
-66:31:34.2 |
HIP 48253 |
19.13 |
| 2026-08-13 00:00 |
09:48:42.12 |
-66:36:05.7 |
HIP 48253 |
12.28 |
| 2026-08-13 12:00 |
09:49:34.20 |
-66:40:39.6 |
HIP 48253 |
5.40 |
| 2026-08-14 00:00 |
09:50:26.63 |
-66:45:15.9 |
HIP 48253 |
1.57 |
| 2026-08-14 12:00 |
09:51:19.40 |
-66:49:54.5 |
HIP 48389 |
3.98 |
| 2026-08-15 00:00 |
09:52:12.52 |
-66:54:35.4 |
HIP 48389 |
7.23 |
| 2026-08-15 12:00 |
09:53:05.99 |
-66:59:18.6 |
HIP 48389 |
13.72 |
| 2026-08-16 00:00 |
09:53:59.81 |
-67:04:04.2 |
HIP 48528 |
15.17 |
| 2026-08-16 12:00 |
09:54:53.99 |
-67:08:52.0 |
HIP 48528 |
12.03 |
| 2026-08-17 00:00 |
09:55:48.54 |
-67:13:42.1 |
HIP 48528 |
12.67 |
| 2026-08-17 12:00 |
09:56:43.44 |
-67:18:34.4 |
HIP 48948 |
15.04 |
| 2026-08-18 00:00 |
09:57:38.72 |
-67:23:29.0 |
HIP 48948 |
8.73 |
| 2026-08-18 12:00 |
09:58:34.36 |
-67:28:25.8 |
HIP 48948 |
5.61 |
| 2026-08-19 00:00 |
09:59:30.39 |
-67:33:24.7 |
HIP 49015 |
7.07 |