메타데이터
| 항목 |
값 |
| Designation |
C/2012 V1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2013-07-21T12:56:16.166400Z |
| Orbit solution date (soln_date, UTC) |
2022-06-07T21:44:04Z |
| Obs used |
98 |
| NEO |
- |
| M1 |
15.200 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2012-12-06.0000000 |
| e |
0.99939324 |
| q (au) |
2.089202 |
| a (au) |
3443.236545 |
| i (deg) |
157.839966 |
| Ω (om, deg) |
85.369420 |
| ω (w, deg) |
123.335286 |
| M (ma, deg) |
359.998890 |
밝기
산란 + 전체 선형
$$
M_a = (16.808 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.808 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.649 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
10:59:43.06 |
-16:52:42.2 |
HIP 53886 |
25.67 |
| 2026-09-20 12:00 |
10:59:46.43 |
-16:53:06.2 |
HIP 53886 |
24.81 |
| 2026-09-21 00:00 |
10:59:49.79 |
-16:53:30.3 |
HIP 53886 |
23.96 |
| 2026-09-21 12:00 |
10:59:53.15 |
-16:53:54.6 |
HIP 53886 |
23.11 |
| 2026-09-22 00:00 |
10:59:56.50 |
-16:54:19.0 |
HIP 53886 |
22.27 |
| 2026-09-22 12:00 |
10:59:59.83 |
-16:54:43.6 |
HIP 53886 |
21.43 |
| 2026-09-23 00:00 |
11:00:03.16 |
-16:55:08.3 |
HIP 53886 |
20.60 |
| 2026-09-23 12:00 |
11:00:06.48 |
-16:55:33.1 |
HIP 53886 |
19.78 |
| 2026-09-24 00:00 |
11:00:09.79 |
-16:55:58.1 |
HIP 53886 |
18.97 |
| 2026-09-24 12:00 |
11:00:13.10 |
-16:56:23.2 |
HIP 53886 |
18.17 |
| 2026-09-25 00:00 |
11:00:16.39 |
-16:56:48.4 |
HIP 53886 |
17.38 |
| 2026-09-25 12:00 |
11:00:19.67 |
-16:57:13.8 |
HIP 53886 |
16.60 |
| 2026-09-26 00:00 |
11:00:22.94 |
-16:57:39.3 |
HIP 53886 |
15.83 |
| 2026-09-26 12:00 |
11:00:26.21 |
-16:58:04.9 |
HIP 53886 |
15.09 |
| 2026-09-27 00:00 |
11:00:29.46 |
-16:58:30.6 |
HIP 53886 |
14.36 |
| 2026-09-27 12:00 |
11:00:32.70 |
-16:58:56.5 |
HIP 53886 |
13.65 |
| 2026-09-28 00:00 |
11:00:35.93 |
-16:59:22.5 |
HIP 53886 |
12.97 |
| 2026-09-28 12:00 |
11:00:39.15 |
-16:59:48.6 |
HIP 53886 |
12.31 |
| 2026-09-29 00:00 |
11:00:42.36 |
-17:00:14.8 |
HIP 53886 |
11.70 |
| 2026-09-29 12:00 |
11:00:45.55 |
-17:00:41.1 |
HIP 53886 |
11.12 |
| 2026-09-30 00:00 |
11:00:48.74 |
-17:01:07.6 |
HIP 53886 |
10.58 |
| 2026-09-30 12:00 |
11:00:51.91 |
-17:01:34.1 |
HIP 53886 |
10.10 |
| 2026-10-01 00:00 |
11:00:55.07 |
-17:02:00.8 |
HIP 53886 |
9.67 |
| 2026-10-01 12:00 |
11:00:58.22 |
-17:02:27.6 |
HIP 53886 |
9.32 |
| 2026-10-02 00:00 |
11:01:01.36 |
-17:02:54.5 |
HIP 53886 |
9.04 |
| 2026-10-02 12:00 |
11:01:04.48 |
-17:03:21.5 |
HIP 53886 |
8.83 |
| 2026-10-03 00:00 |
11:01:07.59 |
-17:03:48.6 |
HIP 53886 |
8.72 |
| 2026-10-03 12:00 |
11:01:10.68 |
-17:04:15.8 |
HIP 53886 |
8.69 |
| 2026-10-04 00:00 |
11:01:13.76 |
-17:04:43.1 |
HIP 53886 |
8.76 |
| 2026-10-04 12:00 |
11:01:16.83 |
-17:05:10.5 |
HIP 53886 |
8.91 |
| 2026-10-05 00:00 |
11:01:19.89 |
-17:05:38.0 |
HIP 53886 |
9.14 |
| 2026-10-05 12:00 |
11:01:22.93 |
-17:06:05.6 |
HIP 53886 |
9.45 |
| 2026-10-06 00:00 |
11:01:25.95 |
-17:06:33.2 |
HIP 53886 |
9.82 |
| 2026-10-06 12:00 |
11:01:28.96 |
-17:07:01.0 |
HIP 53886 |
10.26 |
| 2026-10-07 00:00 |
11:01:31.96 |
-17:07:28.9 |
HIP 53886 |
10.74 |
| 2026-10-07 12:00 |
11:01:34.94 |
-17:07:56.8 |
HIP 53886 |
11.28 |
| 2026-10-08 00:00 |
11:01:37.90 |
-17:08:24.9 |
HIP 53886 |
11.85 |
| 2026-10-08 12:00 |
11:01:40.85 |
-17:08:53.0 |
HIP 53893 |
12.19 |
| 2026-10-09 00:00 |
11:01:43.78 |
-17:09:21.2 |
HIP 53893 |
11.78 |
| 2026-10-09 12:00 |
11:01:46.70 |
-17:09:49.5 |
HIP 53893 |
11.41 |
| 2026-10-10 00:00 |
11:01:49.59 |
-17:10:17.9 |
HIP 53893 |
11.09 |
| 2026-10-10 12:00 |
11:01:52.48 |
-17:10:46.3 |
HIP 53893 |
10.82 |
| 2026-10-11 00:00 |
11:01:55.34 |
-17:11:14.8 |
HIP 53893 |
10.61 |