메타데이터
| 항목 |
값 |
| Designation |
P/2026 C2 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2026-07-21T20:28:16.901760Z |
| Orbit solution date (soln_date, UTC) |
2026-03-31T09:42:34Z |
| Obs used |
167 |
| NEO |
- |
| M1 |
17.000 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2026-02-13T09:53:19.392000Z |
| Discovery magnitude (MPC) |
20.05 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2026-02-28.0000000 |
| e |
0.31433845 |
| q (au) |
2.435886 |
| a (au) |
3.552607 |
| i (deg) |
7.400867 |
| Ω (om, deg) |
190.561143 |
| ω (w, deg) |
11.005164 |
| M (ma, deg) |
338.826035 |
밝기
산란 + 전체 선형
$$
M_a = (20.000 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
20.000 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.771 |
| k |
0.845 |
| 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 |
12:13:19.00 |
+00:07:48.1 |
HIP 59429 |
28.65 |
| 2026-07-29 12:00 |
12:14:07.12 |
+00:03:28.9 |
HIP 59429 |
41.24 |
| 2026-07-30 00:00 |
12:14:55.31 |
-00:00:50.9 |
HIP 59906 |
36.89 |
| 2026-07-30 12:00 |
12:15:43.59 |
-00:05:11.4 |
HIP 59906 |
27.91 |
| 2026-07-31 00:00 |
12:16:31.95 |
-00:09:32.5 |
HIP 59906 |
22.95 |
| 2026-07-31 12:00 |
12:17:20.39 |
-00:13:54.2 |
HIP 59906 |
24.60 |
| 2026-08-01 00:00 |
12:18:08.90 |
-00:18:16.5 |
HIP 60030 |
30.00 |
| 2026-08-01 12:00 |
12:18:57.50 |
-00:22:39.4 |
HIP 60129 |
22.43 |
| 2026-08-02 00:00 |
12:19:46.17 |
-00:27:02.9 |
HIP 60129 |
13.12 |
| 2026-08-02 12:00 |
12:20:34.93 |
-00:31:27.0 |
HIP 60129 |
13.26 |
| 2026-08-03 00:00 |
12:21:23.76 |
-00:35:51.6 |
HIP 60129 |
22.72 |
| 2026-08-03 12:00 |
12:22:12.67 |
-00:40:16.8 |
HIP 60402 |
20.53 |
| 2026-08-04 00:00 |
12:23:01.66 |
-00:44:42.6 |
HIP 60402 |
11.48 |
| 2026-08-04 12:00 |
12:23:50.72 |
-00:49:08.9 |
HIP 60402 |
13.47 |
| 2026-08-05 00:00 |
12:24:39.86 |
-00:53:35.7 |
HIP 60602 |
14.26 |
| 2026-08-05 12:00 |
12:25:29.08 |
-00:58:03.0 |
HIP 60602 |
6.74 |
| 2026-08-06 00:00 |
12:26:18.38 |
-01:02:30.9 |
HIP 60648 |
7.94 |
| 2026-08-06 12:00 |
12:27:07.75 |
-01:06:59.3 |
HIP 60648 |
19.13 |
| 2026-08-07 00:00 |
12:27:57.19 |
-01:11:28.2 |
HIP 60938 |
21.57 |
| 2026-08-07 12:00 |
12:28:46.71 |
-01:15:57.5 |
HIP 60938 |
9.26 |
| 2026-08-08 00:00 |
12:29:36.31 |
-01:20:27.4 |
HIP 60938 |
7.29 |
| 2026-08-08 12:00 |
12:30:25.98 |
-01:24:57.7 |
HIP 60938 |
19.21 |
| 2026-08-09 00:00 |
12:31:15.73 |
-01:29:28.5 |
HIP 61173 |
20.81 |
| 2026-08-09 12:00 |
12:32:05.55 |
-01:33:59.7 |
HIP 61173 |
12.36 |
| 2026-08-10 00:00 |
12:32:55.44 |
-01:38:31.3 |
HIP 61173 |
14.95 |
| 2026-08-10 12:00 |
12:33:45.41 |
-01:43:03.4 |
HIP 61358 |
20.86 |
| 2026-08-11 00:00 |
12:34:35.45 |
-01:47:35.9 |
HIP 61358 |
23.34 |
| 2026-08-11 12:00 |
12:35:25.56 |
-01:52:08.8 |
HIP 61491 |
28.32 |
| 2026-08-12 00:00 |
12:36:15.74 |
-01:56:42.1 |
HIP 61578 |
25.95 |
| 2026-08-12 12:00 |
12:37:06.00 |
-02:01:15.8 |
HIP 61578 |
18.04 |
| 2026-08-13 00:00 |
12:37:56.32 |
-02:05:49.9 |
HIP 61578 |
18.30 |
| 2026-08-13 12:00 |
12:38:46.72 |
-02:10:24.3 |
HIP 61578 |
26.51 |
| 2026-08-14 00:00 |
12:39:37.19 |
-02:14:59.1 |
HIP 61578 |
37.83 |
| 2026-08-14 12:00 |
12:40:27.72 |
-02:19:34.2 |
HIP 61953 |
32.72 |
| 2026-08-15 00:00 |
12:41:18.33 |
-02:24:09.6 |
HIP 61953 |
22.32 |
| 2026-08-15 12:00 |
12:42:09.00 |
-02:28:45.4 |
HIP 61953 |
16.95 |
| 2026-08-16 00:00 |
12:42:59.74 |
-02:33:21.4 |
HIP 62036 |
18.30 |
| 2026-08-16 12:00 |
12:43:50.55 |
-02:37:57.8 |
HIP 62185 |
13.22 |
| 2026-08-17 00:00 |
12:44:41.42 |
-02:42:34.4 |
HIP 62185 |
0.30 |
| 2026-08-17 12:00 |
12:45:32.36 |
-02:47:11.3 |
HIP 62185 |
13.83 |
| 2026-08-18 00:00 |
12:46:23.36 |
-02:51:48.4 |
HIP 62185 |
27.38 |
| 2026-08-18 12:00 |
12:47:14.43 |
-02:56:25.8 |
HIP 62185 |
40.94 |
| 2026-08-19 00:00 |
12:48:05.57 |
-03:01:03.4 |
HIP 62567 |
43.97 |