메타데이터
| 항목 |
값 |
| Designation |
C/2024 C2 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-03-10T09:41:40.943040Z |
| Orbit solution date (soln_date, UTC) |
2024-05-07T13:42:26Z |
| Obs used |
65 |
| NEO |
- |
| M1 |
6.200 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-02-01T10:02:20.169600Z |
| Discovery magnitude (MPC) |
20.52 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-02-05.0000000 |
| e |
0.44399030 |
| q (au) |
8.991478 |
| a (au) |
16.171441 |
| i (deg) |
27.284750 |
| Ω (om, deg) |
66.444490 |
| ω (w, deg) |
87.533754 |
| M (ma, deg) |
353.946684 |
밝기
산란 + 전체 선형
$$
M_a = (1.227 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
1.227 |
| n |
6.000 |
| gf |
0.906 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
6.840 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
12:38:21.50 |
+20:47:35.6 |
HIP 61677 |
5.50 |
| 2026-09-20 12:00 |
12:38:36.60 |
+20:45:39.6 |
HIP 61677 |
2.41 |
| 2026-09-21 00:00 |
12:38:51.70 |
+20:43:44.2 |
HIP 61677 |
3.71 |
| 2026-09-21 12:00 |
12:39:06.82 |
+20:41:49.1 |
HIP 61677 |
7.36 |
| 2026-09-22 00:00 |
12:39:21.96 |
+20:39:54.5 |
HIP 61677 |
11.26 |
| 2026-09-22 12:00 |
12:39:37.10 |
+20:38:00.3 |
HIP 61816 |
12.68 |
| 2026-09-23 00:00 |
12:39:52.26 |
+20:36:06.5 |
HIP 61816 |
12.95 |
| 2026-09-23 12:00 |
12:40:07.42 |
+20:34:13.2 |
HIP 61816 |
14.38 |
| 2026-09-24 00:00 |
12:40:22.60 |
+20:32:20.3 |
HIP 61816 |
16.67 |
| 2026-09-24 12:00 |
12:40:37.79 |
+20:30:27.9 |
HIP 61816 |
19.52 |
| 2026-09-25 00:00 |
12:40:52.98 |
+20:28:35.9 |
HIP 61816 |
22.72 |
| 2026-09-25 12:00 |
12:41:08.19 |
+20:26:44.4 |
HIP 62031 |
25.02 |
| 2026-09-26 00:00 |
12:41:23.40 |
+20:24:53.3 |
HIP 62031 |
21.17 |
| 2026-09-26 12:00 |
12:41:38.63 |
+20:23:02.7 |
HIP 62031 |
17.38 |
| 2026-09-27 00:00 |
12:41:53.86 |
+20:21:12.5 |
HIP 62031 |
13.72 |
| 2026-09-27 12:00 |
12:42:09.09 |
+20:19:22.9 |
HIP 62031 |
10.32 |
| 2026-09-28 00:00 |
12:42:24.34 |
+20:17:33.6 |
HIP 62031 |
7.55 |
| 2026-09-28 12:00 |
12:42:39.59 |
+20:15:44.9 |
HIP 62031 |
6.29 |
| 2026-09-29 00:00 |
12:42:54.85 |
+20:13:56.6 |
HIP 62031 |
7.35 |
| 2026-09-29 12:00 |
12:43:10.11 |
+20:12:08.8 |
HIP 62031 |
10.03 |
| 2026-09-30 00:00 |
12:43:25.37 |
+20:10:21.4 |
HIP 62031 |
13.38 |
| 2026-09-30 12:00 |
12:43:40.65 |
+20:08:34.6 |
HIP 62031 |
17.01 |
| 2026-10-01 00:00 |
12:43:55.92 |
+20:06:48.2 |
HIP 62031 |
20.77 |
| 2026-10-01 12:00 |
12:44:11.20 |
+20:05:02.4 |
HIP 62031 |
24.60 |
| 2026-10-02 00:00 |
12:44:26.48 |
+20:03:17.0 |
HIP 62031 |
28.48 |
| 2026-10-02 12:00 |
12:44:41.77 |
+20:01:32.1 |
HIP 62031 |
32.38 |
| 2026-10-03 00:00 |
12:44:57.05 |
+19:59:47.7 |
HIP 62031 |
36.29 |
| 2026-10-03 12:00 |
12:45:12.34 |
+19:58:03.8 |
HIP 62031 |
40.22 |
| 2026-10-04 00:00 |
12:45:27.63 |
+19:56:20.4 |
HIP 62031 |
44.15 |
| 2026-10-04 12:00 |
12:45:42.92 |
+19:54:37.6 |
HIP 62031 |
48.09 |
| 2026-10-05 00:00 |
12:45:58.21 |
+19:52:55.2 |
HIP 62550 |
44.35 |
| 2026-10-05 12:00 |
12:46:13.50 |
+19:51:13.4 |
HIP 62550 |
40.44 |
| 2026-10-06 00:00 |
12:46:28.79 |
+19:49:32.1 |
HIP 62550 |
36.54 |
| 2026-10-06 12:00 |
12:46:44.08 |
+19:47:51.3 |
HIP 62550 |
32.66 |
| 2026-10-07 00:00 |
12:46:59.36 |
+19:46:11.0 |
HIP 62550 |
28.80 |
| 2026-10-07 12:00 |
12:47:14.65 |
+19:44:31.3 |
HIP 62550 |
24.97 |
| 2026-10-08 00:00 |
12:47:29.92 |
+19:42:52.1 |
HIP 62550 |
21.20 |
| 2026-10-08 12:00 |
12:47:45.20 |
+19:41:13.5 |
HIP 62550 |
17.51 |
| 2026-10-09 00:00 |
12:48:00.47 |
+19:39:35.4 |
HIP 62550 |
13.97 |
| 2026-10-09 12:00 |
12:48:15.74 |
+19:37:57.8 |
HIP 62550 |
10.70 |
| 2026-10-10 00:00 |
12:48:31.00 |
+19:36:20.9 |
HIP 62550 |
8.07 |
| 2026-10-10 12:00 |
12:48:46.25 |
+19:34:44.4 |
HIP 62550 |
6.82 |
| 2026-10-11 00:00 |
12:49:01.50 |
+19:33:08.5 |
HIP 62550 |
7.67 |