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) |
| 2026-09-20 00:00 |
13:44:39.93 |
-07:57:54.0 |
HIP 67082 |
20.28 |
| 2026-09-20 12:00 |
13:45:34.71 |
-08:02:26.1 |
HIP 67082 |
26.11 |
| 2026-09-21 00:00 |
13:46:29.53 |
-08:06:57.8 |
HIP 67333 |
23.55 |
| 2026-09-21 12:00 |
13:47:24.40 |
-08:11:29.0 |
HIP 67333 |
13.67 |
| 2026-09-22 00:00 |
13:48:19.32 |
-08:15:59.8 |
HIP 67402 |
8.74 |
| 2026-09-22 12:00 |
13:49:14.29 |
-08:20:30.2 |
HIP 67402 |
10.98 |
| 2026-09-23 00:00 |
13:50:09.30 |
-08:25:00.2 |
HIP 67402 |
23.98 |
| 2026-09-23 12:00 |
13:51:04.36 |
-08:29:29.6 |
HIP 67402 |
37.96 |
| 2026-09-24 00:00 |
13:51:59.46 |
-08:33:58.7 |
HIP 67855 |
29.03 |
| 2026-09-24 12:00 |
13:52:54.61 |
-08:38:27.2 |
HIP 67855 |
17.68 |
| 2026-09-25 00:00 |
13:53:49.81 |
-08:42:55.3 |
HIP 67855 |
13.93 |
| 2026-09-25 12:00 |
13:54:45.05 |
-08:47:22.9 |
HIP 67967 |
11.40 |
| 2026-09-26 00:00 |
13:55:40.34 |
-08:51:49.9 |
HIP 67967 |
16.65 |
| 2026-09-26 12:00 |
13:56:35.67 |
-08:56:16.5 |
HIP 68241 |
24.92 |
| 2026-09-27 00:00 |
13:57:31.05 |
-09:00:42.6 |
HIP 68241 |
10.56 |
| 2026-09-27 12:00 |
13:58:26.47 |
-09:05:08.1 |
HIP 68241 |
3.94 |
| 2026-09-28 00:00 |
13:59:21.94 |
-09:09:33.1 |
HIP 68241 |
18.25 |
| 2026-09-28 12:00 |
14:00:17.45 |
-09:13:57.6 |
HIP 68371 |
26.08 |
| 2026-09-29 00:00 |
14:01:13.00 |
-09:18:21.6 |
HIP 68638 |
29.12 |
| 2026-09-29 12:00 |
14:02:08.61 |
-09:22:45.0 |
HIP 68638 |
14.93 |
| 2026-09-30 00:00 |
14:03:04.25 |
-09:27:07.8 |
HIP 68638 |
3.57 |
| 2026-09-30 12:00 |
14:03:59.94 |
-09:31:30.0 |
HIP 68748 |
4.89 |
| 2026-10-01 00:00 |
14:04:55.68 |
-09:35:51.7 |
HIP 68748 |
9.76 |
| 2026-10-01 12:00 |
14:05:51.46 |
-09:40:12.8 |
HIP 68748 |
24.13 |
| 2026-10-02 00:00 |
14:06:47.28 |
-09:44:33.3 |
HIP 68921 |
21.48 |
| 2026-10-02 12:00 |
14:07:43.15 |
-09:48:53.3 |
HIP 68921 |
23.97 |
| 2026-10-03 00:00 |
14:08:39.07 |
-09:53:12.6 |
HIP 69127 |
27.38 |
| 2026-10-03 12:00 |
14:09:35.02 |
-09:57:31.2 |
HIP 69127 |
24.09 |
| 2026-10-04 00:00 |
14:10:31.03 |
-10:01:49.3 |
HIP 69363 |
21.13 |
| 2026-10-04 12:00 |
14:11:27.07 |
-10:06:06.7 |
HIP 69363 |
10.78 |
| 2026-10-05 00:00 |
14:12:23.16 |
-10:10:23.5 |
HIP 69427 |
9.65 |
| 2026-10-05 12:00 |
14:13:19.29 |
-10:14:39.7 |
HIP 69427 |
6.53 |
| 2026-10-06 00:00 |
14:14:15.47 |
-10:18:55.1 |
HIP 69427 |
20.26 |
| 2026-10-06 12:00 |
14:15:11.69 |
-10:23:09.9 |
HIP 69685 |
22.00 |
| 2026-10-07 00:00 |
14:16:07.95 |
-10:27:24.0 |
HIP 69685 |
24.40 |
| 2026-10-07 12:00 |
14:17:04.25 |
-10:31:37.5 |
HIP 69976 |
30.51 |
| 2026-10-08 00:00 |
14:18:00.60 |
-10:35:50.2 |
HIP 69976 |
16.27 |
| 2026-10-08 12:00 |
14:18:56.99 |
-10:40:02.2 |
HIP 69976 |
4.19 |
| 2026-10-09 00:00 |
14:19:53.42 |
-10:44:13.5 |
HIP 69976 |
13.77 |
| 2026-10-09 12:00 |
14:20:49.89 |
-10:48:24.1 |
HIP 70204 |
16.82 |
| 2026-10-10 00:00 |
14:21:46.40 |
-10:52:33.9 |
HIP 70204 |
12.58 |
| 2026-10-10 12:00 |
14:22:42.95 |
-10:56:43.0 |
HIP 70294 |
12.12 |
| 2026-10-11 00:00 |
14:23:39.53 |
-11:00:51.4 |
HIP 70438 |
14.43 |