메타데이터
| 항목 |
값 |
| Designation |
470P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-12-19T19:12:04.207680Z |
| Orbit solution date (soln_date, UTC) |
2025-02-13T09:13:19Z |
| Obs used |
210 |
| NEO |
- |
| M1 |
13.700 |
| K1 |
11.250 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-07-30T12:57:55.440000Z |
| Discovery magnitude (MPC) |
20.84 i |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2021-03-20.0000000 |
| e |
0.38862305 |
| q (au) |
2.727781 |
| a (au) |
4.461701 |
| i (deg) |
8.837963 |
| Ω (om, deg) |
246.243776 |
| ω (w, deg) |
152.250537 |
| M (ma, deg) |
254.916863 |
밝기
산란 + 전체 선형
$$
M_a = (12.031 + 5.143\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.031 |
| n |
5.143 |
| gf |
1.000 |
| gb |
-0.503 |
| 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) |
| 2026-07-29 00:00 |
11:04:48.97 |
-02:05:42.0 |
HIP 54158 |
25.12 |
| 2026-07-29 12:00 |
11:05:09.85 |
-02:07:24.1 |
HIP 54158 |
24.24 |
| 2026-07-30 00:00 |
11:05:30.79 |
-02:09:06.7 |
HIP 54158 |
24.58 |
| 2026-07-30 12:00 |
11:05:51.77 |
-02:10:50.0 |
HIP 54371 |
23.85 |
| 2026-07-31 00:00 |
11:06:12.80 |
-02:12:33.8 |
HIP 54371 |
18.68 |
| 2026-07-31 12:00 |
11:06:33.89 |
-02:14:18.3 |
HIP 54371 |
13.80 |
| 2026-08-01 00:00 |
11:06:55.02 |
-02:16:03.4 |
HIP 54371 |
9.65 |
| 2026-08-01 12:00 |
11:07:16.20 |
-02:17:49.1 |
HIP 54371 |
7.60 |
| 2026-08-02 00:00 |
11:07:37.43 |
-02:19:35.3 |
HIP 54371 |
9.21 |
| 2026-08-02 12:00 |
11:07:58.70 |
-02:21:22.2 |
HIP 54371 |
13.23 |
| 2026-08-03 00:00 |
11:08:20.02 |
-02:23:09.6 |
HIP 54371 |
18.12 |
| 2026-08-03 12:00 |
11:08:41.39 |
-02:24:57.6 |
HIP 54489 |
18.37 |
| 2026-08-04 00:00 |
11:09:02.80 |
-02:26:46.2 |
HIP 54489 |
16.47 |
| 2026-08-04 12:00 |
11:09:24.26 |
-02:28:35.4 |
HIP 54489 |
16.39 |
| 2026-08-05 00:00 |
11:09:45.76 |
-02:30:25.1 |
HIP 54489 |
18.18 |
| 2026-08-05 12:00 |
11:10:07.31 |
-02:32:15.4 |
HIP 54489 |
21.37 |
| 2026-08-06 00:00 |
11:10:28.90 |
-02:34:06.3 |
HIP 54489 |
25.45 |
| 2026-08-06 12:00 |
11:10:50.53 |
-02:35:57.7 |
HIP 54546 |
28.98 |
| 2026-08-07 00:00 |
11:11:12.20 |
-02:37:49.7 |
HIP 54546 |
31.04 |
| 2026-08-07 12:00 |
11:11:33.92 |
-02:39:42.3 |
HIP 54546 |
33.96 |
| 2026-08-08 00:00 |
11:11:55.67 |
-02:41:35.3 |
HIP 54546 |
37.54 |
| 2026-08-08 12:00 |
11:12:17.47 |
-02:43:29.0 |
HIP 54898 |
36.56 |
| 2026-08-09 00:00 |
11:12:39.31 |
-02:45:23.2 |
HIP 54898 |
33.01 |
| 2026-08-09 12:00 |
11:13:01.18 |
-02:47:17.9 |
HIP 54898 |
30.15 |
| 2026-08-10 00:00 |
11:13:23.10 |
-02:49:13.1 |
HIP 54898 |
28.21 |
| 2026-08-10 12:00 |
11:13:45.05 |
-02:51:08.9 |
HIP 54898 |
27.38 |
| 2026-08-11 00:00 |
11:14:07.04 |
-02:53:05.2 |
HIP 54898 |
27.78 |
| 2026-08-11 12:00 |
11:14:29.07 |
-02:55:02.0 |
HIP 54898 |
29.37 |
| 2026-08-12 00:00 |
11:14:51.13 |
-02:56:59.3 |
HIP 54898 |
31.96 |
| 2026-08-12 12:00 |
11:15:13.23 |
-02:58:57.1 |
HIP 55051 |
32.79 |
| 2026-08-13 00:00 |
11:15:35.37 |
-03:00:55.5 |
HIP 55051 |
28.86 |
| 2026-08-13 12:00 |
11:15:57.53 |
-03:02:54.3 |
HIP 55051 |
25.66 |
| 2026-08-14 00:00 |
11:16:19.73 |
-03:04:53.7 |
HIP 55051 |
23.51 |
| 2026-08-14 12:00 |
11:16:41.97 |
-03:06:53.5 |
HIP 55051 |
22.72 |
| 2026-08-15 00:00 |
11:17:04.23 |
-03:08:53.8 |
HIP 55051 |
23.44 |
| 2026-08-15 12:00 |
11:17:26.53 |
-03:10:54.6 |
HIP 55051 |
25.53 |
| 2026-08-16 00:00 |
11:17:48.86 |
-03:12:55.9 |
HIP 55051 |
28.72 |
| 2026-08-16 12:00 |
11:18:11.22 |
-03:14:57.6 |
HIP 55051 |
32.69 |
| 2026-08-17 00:00 |
11:18:33.60 |
-03:16:59.8 |
HIP 55084 |
35.99 |
| 2026-08-17 12:00 |
11:18:56.02 |
-03:19:02.4 |
HIP 55390 |
34.75 |
| 2026-08-18 00:00 |
11:19:18.47 |
-03:21:05.6 |
HIP 55390 |
32.82 |
| 2026-08-18 12:00 |
11:19:40.94 |
-03:23:09.1 |
HIP 55435 |
31.43 |
| 2026-08-19 00:00 |
11:20:03.44 |
-03:25:13.1 |
HIP 55435 |
26.18 |