메타데이터
| 항목 |
값 |
| Designation |
456P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2019-09-04T09:54:13.236480Z |
| Orbit solution date (soln_date, UTC) |
2025-02-13T09:13:18Z |
| Obs used |
60 |
| NEO |
- |
| M1 |
12.000 |
| K1 |
15.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2012-08-18T12:00:39.830400Z |
| Discovery magnitude (MPC) |
23.40 r |
| Discovery observatory (MPC) |
T14 · Canada-France-Hawaii Telescope, Maunakea |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2021-07-18.0000000 |
| e |
0.11870899 |
| q (au) |
2.789385 |
| a (au) |
3.165113 |
| i (deg) |
16.961610 |
| Ω (om, deg) |
243.224773 |
| ω (w, deg) |
234.671332 |
| M (ma, deg) |
119.475406 |
밝기
산란 + 전체 선형
$$
M_a = (11.598 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.598 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.502 |
| k |
1.000 |
| 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) |
| 2026-03-26 00:00 |
12:12:11.77 |
-23:28:17.1 |
HIP 59394 |
17.43 |
| 2026-03-26 12:00 |
12:11:49.86 |
-23:24:51.8 |
HIP 59394 |
15.44 |
| 2026-03-27 00:00 |
12:11:27.98 |
-23:21:23.7 |
HIP 59394 |
15.75 |
| 2026-03-27 12:00 |
12:11:06.13 |
-23:17:52.7 |
HIP 59394 |
18.27 |
| 2026-03-28 00:00 |
12:10:44.33 |
-23:14:19.0 |
HIP 59394 |
22.28 |
| 2026-03-28 12:00 |
12:10:22.58 |
-23:10:42.6 |
HIP 59394 |
27.14 |
| 2026-03-29 00:00 |
12:10:00.88 |
-23:07:03.5 |
HIP 59316 |
29.91 |
| 2026-03-29 12:00 |
12:09:39.25 |
-23:03:21.8 |
HIP 59316 |
26.97 |
| 2026-03-30 00:00 |
12:09:17.68 |
-22:59:37.5 |
HIP 59204 |
23.44 |
| 2026-03-30 12:00 |
12:08:56.19 |
-22:55:50.7 |
HIP 59204 |
17.86 |
| 2026-03-31 00:00 |
12:08:34.77 |
-22:52:01.4 |
HIP 59204 |
12.85 |
| 2026-03-31 12:00 |
12:08:13.45 |
-22:48:09.7 |
HIP 59204 |
9.41 |
| 2026-04-01 00:00 |
12:07:52.21 |
-22:44:15.7 |
HIP 59204 |
9.46 |
| 2026-04-01 12:00 |
12:07:31.08 |
-22:40:19.3 |
HIP 59204 |
12.96 |
| 2026-04-02 00:00 |
12:07:10.04 |
-22:36:20.6 |
HIP 59041 |
16.84 |
| 2026-04-02 12:00 |
12:06:49.12 |
-22:32:19.8 |
HIP 59041 |
17.19 |
| 2026-04-03 00:00 |
12:06:28.31 |
-22:28:16.7 |
HIP 59041 |
19.69 |
| 2026-04-03 12:00 |
12:06:07.62 |
-22:24:11.6 |
HIP 59041 |
23.67 |
| 2026-04-04 00:00 |
12:05:47.06 |
-22:20:04.3 |
HIP 58849 |
22.31 |
| 2026-04-04 12:00 |
12:05:26.63 |
-22:15:55.1 |
HIP 58849 |
18.60 |
| 2026-04-05 00:00 |
12:05:06.34 |
-22:11:44.0 |
HIP 58849 |
16.57 |
| 2026-04-05 12:00 |
12:04:46.20 |
-22:07:30.9 |
HIP 58849 |
16.84 |
| 2026-04-06 00:00 |
12:04:26.20 |
-22:03:16.0 |
HIP 58849 |
19.31 |
| 2026-04-06 12:00 |
12:04:06.35 |
-21:58:59.3 |
HIP 58753 |
18.43 |
| 2026-04-07 00:00 |
12:03:46.67 |
-21:54:40.9 |
HIP 58753 |
18.06 |
| 2026-04-07 12:00 |
12:03:27.15 |
-21:50:20.8 |
HIP 58753 |
19.82 |
| 2026-04-08 00:00 |
12:03:07.80 |
-21:45:59.1 |
HIP 58753 |
23.23 |
| 2026-04-08 12:00 |
12:02:48.62 |
-21:41:35.9 |
HIP 58629 |
21.99 |
| 2026-04-09 00:00 |
12:02:29.63 |
-21:37:11.2 |
HIP 58629 |
16.22 |
| 2026-04-09 12:00 |
12:02:10.82 |
-21:32:45.0 |
HIP 58629 |
11.01 |
| 2026-04-10 00:00 |
12:01:52.20 |
-21:28:17.5 |
HIP 58629 |
7.59 |
| 2026-04-10 12:00 |
12:01:33.78 |
-21:23:48.7 |
HIP 58629 |
8.48 |
| 2026-04-11 00:00 |
12:01:15.56 |
-21:19:18.6 |
HIP 58596 |
6.03 |
| 2026-04-11 12:00 |
12:00:57.54 |
-21:14:47.3 |
HIP 58596 |
0.26 |
| 2026-04-12 00:00 |
12:00:39.73 |
-21:10:14.9 |
HIP 58596 |
6.30 |
| 2026-04-12 12:00 |
12:00:22.14 |
-21:05:41.4 |
HIP 58596 |
12.43 |
| 2026-04-13 00:00 |
12:00:04.77 |
-21:01:06.9 |
HIP 58532 |
17.07 |
| 2026-04-13 12:00 |
11:59:47.62 |
-20:56:31.5 |
HIP 58532 |
13.69 |
| 2026-04-14 00:00 |
11:59:30.70 |
-20:51:55.2 |
HIP 58532 |
12.50 |
| 2026-04-14 12:00 |
11:59:14.01 |
-20:47:18.0 |
HIP 58532 |
14.05 |
| 2026-04-15 00:00 |
11:58:57.56 |
-20:42:40.2 |
HIP 58532 |
17.61 |
| 2026-04-15 12:00 |
11:58:41.35 |
-20:38:01.6 |
HIP 58451 |
18.14 |
| 2026-04-16 00:00 |
11:58:25.38 |
-20:33:22.4 |
HIP 58451 |
16.06 |