메타데이터
| 항목 |
값 |
| Designation |
455P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-07-23T16:02:18.502080Z |
| Orbit solution date (soln_date, UTC) |
2023-02-09T05:35:52Z |
| Obs used |
71 |
| NEO |
- |
| M1 |
9.400 |
| K1 |
31.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2011-08-21T13:23:27.830400Z |
| Discovery magnitude (MPC) |
23.18 G |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-04-11.0000000 |
| e |
0.30420723 |
| q (au) |
2.195173 |
| a (au) |
3.154924 |
| i (deg) |
14.138047 |
| Ω (om, deg) |
146.211575 |
| ω (w, deg) |
237.939928 |
| M (ma, deg) |
341.766645 |
밝기
산란 + 전체 선형
$$
M_a = (20.000 + 3.420\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
20.000 |
| n |
3.420 |
| gf |
0.925 |
| gb |
-0.830 |
| k |
0.981 |
| δ90 |
4.927 |
| 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) |
| 2026-07-29 00:00 |
14:15:30.66 |
+01:24:26.3 |
HIP 69588 |
26.74 |
| 2026-07-29 12:00 |
14:15:42.18 |
+01:21:50.1 |
HIP 69632 |
25.97 |
| 2026-07-30 00:00 |
14:15:53.90 |
+01:19:13.2 |
HIP 69632 |
24.88 |
| 2026-07-30 12:00 |
14:16:05.81 |
+01:16:35.7 |
HIP 69632 |
24.42 |
| 2026-07-31 00:00 |
14:16:17.91 |
+01:13:57.6 |
HIP 69632 |
24.62 |
| 2026-07-31 12:00 |
14:16:30.20 |
+01:11:18.9 |
HIP 69884 |
24.21 |
| 2026-08-01 00:00 |
14:16:42.68 |
+01:08:39.5 |
HIP 69884 |
20.95 |
| 2026-08-01 12:00 |
14:16:55.34 |
+01:05:59.5 |
HIP 69884 |
18.00 |
| 2026-08-02 00:00 |
14:17:08.19 |
+01:03:19.0 |
HIP 69884 |
15.56 |
| 2026-08-02 12:00 |
14:17:21.23 |
+01:00:37.8 |
HIP 69884 |
13.93 |
| 2026-08-03 00:00 |
14:17:34.46 |
+00:57:56.1 |
HIP 69884 |
13.46 |
| 2026-08-03 12:00 |
14:17:47.86 |
+00:55:13.8 |
HIP 69884 |
14.30 |
| 2026-08-04 00:00 |
14:18:01.46 |
+00:52:31.0 |
HIP 69884 |
16.29 |
| 2026-08-04 12:00 |
14:18:15.23 |
+00:49:47.6 |
HIP 69884 |
19.08 |
| 2026-08-05 00:00 |
14:18:29.19 |
+00:47:03.7 |
HIP 69884 |
22.42 |
| 2026-08-05 12:00 |
14:18:43.33 |
+00:44:19.2 |
HIP 70022 |
25.68 |
| 2026-08-06 00:00 |
14:18:57.64 |
+00:41:34.2 |
HIP 70022 |
21.45 |
| 2026-08-06 12:00 |
14:19:12.14 |
+00:38:48.7 |
HIP 70022 |
17.32 |
| 2026-08-07 00:00 |
14:19:26.82 |
+00:36:02.7 |
HIP 70022 |
13.46 |
| 2026-08-07 12:00 |
14:19:41.68 |
+00:33:16.2 |
HIP 70022 |
10.21 |
| 2026-08-08 00:00 |
14:19:56.71 |
+00:30:29.2 |
HIP 70022 |
8.40 |
| 2026-08-08 12:00 |
14:20:11.92 |
+00:27:41.7 |
HIP 70022 |
9.02 |
| 2026-08-09 00:00 |
14:20:27.31 |
+00:24:53.8 |
HIP 70136 |
11.28 |
| 2026-08-09 12:00 |
14:20:42.87 |
+00:22:05.4 |
HIP 70136 |
10.58 |
| 2026-08-10 00:00 |
14:20:58.61 |
+00:19:16.5 |
HIP 70081 |
11.17 |
| 2026-08-10 12:00 |
14:21:14.52 |
+00:16:27.2 |
HIP 70081 |
12.67 |
| 2026-08-11 00:00 |
14:21:30.60 |
+00:13:37.5 |
HIP 70081 |
15.65 |
| 2026-08-11 12:00 |
14:21:46.85 |
+00:10:47.3 |
HIP 70081 |
19.48 |
| 2026-08-12 00:00 |
14:22:03.28 |
+00:07:56.7 |
HIP 70081 |
23.77 |
| 2026-08-12 12:00 |
14:22:19.88 |
+00:05:05.8 |
HIP 70081 |
28.34 |
| 2026-08-13 00:00 |
14:22:36.64 |
+00:02:14.4 |
HIP 70081 |
33.08 |
| 2026-08-13 12:00 |
14:22:53.58 |
-00:00:37.4 |
HIP 70457 |
30.56 |
| 2026-08-14 00:00 |
14:23:10.68 |
-00:03:29.5 |
HIP 70457 |
25.51 |
| 2026-08-14 12:00 |
14:23:27.95 |
-00:06:22.0 |
HIP 70457 |
20.48 |
| 2026-08-15 00:00 |
14:23:45.38 |
-00:09:14.8 |
HIP 70457 |
15.51 |
| 2026-08-15 12:00 |
14:24:02.98 |
-00:12:08.0 |
HIP 70457 |
10.74 |
| 2026-08-16 00:00 |
14:24:20.74 |
-00:15:01.6 |
HIP 70457 |
6.70 |
| 2026-08-16 12:00 |
14:24:38.66 |
-00:17:55.4 |
HIP 70457 |
5.53 |
| 2026-08-17 00:00 |
14:24:56.75 |
-00:20:49.6 |
HIP 70457 |
8.57 |
| 2026-08-17 12:00 |
14:25:14.99 |
-00:23:44.0 |
HIP 70457 |
13.22 |
| 2026-08-18 00:00 |
14:25:33.40 |
-00:26:38.8 |
HIP 70566 |
16.61 |
| 2026-08-18 12:00 |
14:25:51.96 |
-00:29:33.9 |
HIP 70566 |
12.26 |
| 2026-08-19 00:00 |
14:26:10.68 |
-00:32:29.2 |
HIP 70566 |
9.21 |