메타데이터
| 항목 |
값 |
| Designation |
480P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-04-22T13:13:52.207680Z |
| Orbit solution date (soln_date, UTC) |
2025-03-06T13:42:38Z |
| Obs used |
95 |
| NEO |
- |
| M1 |
13.700 |
| K1 |
8.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2023-12-09T12:43:08.284800Z |
| Discovery magnitude (MPC) |
21.55 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-08-10.0000000 |
| e |
0.24183035 |
| q (au) |
3.525821 |
| a (au) |
4.650438 |
| i (deg) |
13.697578 |
| Ω (om, deg) |
230.461069 |
| ω (w, deg) |
212.102521 |
| M (ma, deg) |
191.298088 |
밝기
산란 + 전체 선형
$$
M_a = (12.955 + 3.109\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.955 |
| n |
3.109 |
| gf |
1.000 |
| gb |
-0.500 |
| 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 |
14:32:36.72 |
-19:26:49.6 |
HIP 71242 |
22.35 |
| 2026-03-26 12:00 |
14:32:25.77 |
-19:25:36.1 |
HIP 71242 |
25.13 |
| 2026-03-27 00:00 |
14:32:14.67 |
-19:24:21.5 |
HIP 71242 |
27.96 |
| 2026-03-27 12:00 |
14:32:03.42 |
-19:23:05.9 |
HIP 71242 |
30.85 |
| 2026-03-28 00:00 |
14:31:52.02 |
-19:21:49.2 |
HIP 70889 |
31.50 |
| 2026-03-28 12:00 |
14:31:40.47 |
-19:20:31.6 |
HIP 70889 |
28.50 |
| 2026-03-29 00:00 |
14:31:28.78 |
-19:19:12.9 |
HIP 70889 |
25.46 |
| 2026-03-29 12:00 |
14:31:16.94 |
-19:17:53.3 |
HIP 70889 |
22.38 |
| 2026-03-30 00:00 |
14:31:04.97 |
-19:16:32.7 |
HIP 70889 |
19.28 |
| 2026-03-30 12:00 |
14:30:52.85 |
-19:15:11.0 |
HIP 70889 |
16.15 |
| 2026-03-31 00:00 |
14:30:40.60 |
-19:13:48.4 |
HIP 70889 |
12.99 |
| 2026-03-31 12:00 |
14:30:28.21 |
-19:12:24.8 |
HIP 70889 |
9.84 |
| 2026-04-01 00:00 |
14:30:15.69 |
-19:11:00.3 |
HIP 70889 |
6.74 |
| 2026-04-01 12:00 |
14:30:03.04 |
-19:09:34.8 |
HIP 70889 |
3.89 |
| 2026-04-02 00:00 |
14:29:50.26 |
-19:08:08.3 |
HIP 70889 |
2.62 |
| 2026-04-02 12:00 |
14:29:37.36 |
-19:06:40.9 |
HIP 70889 |
4.61 |
| 2026-04-03 00:00 |
14:29:24.33 |
-19:05:12.5 |
HIP 70889 |
7.67 |
| 2026-04-03 12:00 |
14:29:11.18 |
-19:03:43.3 |
HIP 70889 |
10.98 |
| 2026-04-04 00:00 |
14:28:57.90 |
-19:02:13.0 |
HIP 70889 |
14.38 |
| 2026-04-04 12:00 |
14:28:44.51 |
-19:00:41.9 |
HIP 70889 |
17.85 |
| 2026-04-05 00:00 |
14:28:31.01 |
-18:59:09.9 |
HIP 70889 |
21.36 |
| 2026-04-05 12:00 |
14:28:17.39 |
-18:57:36.9 |
HIP 70864 |
23.31 |
| 2026-04-06 00:00 |
14:28:03.66 |
-18:56:03.1 |
HIP 70608 |
22.10 |
| 2026-04-06 12:00 |
14:27:49.82 |
-18:54:28.4 |
HIP 70608 |
18.51 |
| 2026-04-07 00:00 |
14:27:35.87 |
-18:52:52.8 |
HIP 70608 |
14.90 |
| 2026-04-07 12:00 |
14:27:21.82 |
-18:51:16.3 |
HIP 70608 |
11.31 |
| 2026-04-08 00:00 |
14:27:07.67 |
-18:49:39.0 |
HIP 70608 |
7.79 |
| 2026-04-08 12:00 |
14:26:53.41 |
-18:48:00.9 |
HIP 70608 |
4.56 |
| 2026-04-09 00:00 |
14:26:39.07 |
-18:46:21.9 |
HIP 70608 |
3.01 |
| 2026-04-09 12:00 |
14:26:24.62 |
-18:44:42.1 |
HIP 70608 |
5.11 |
| 2026-04-10 00:00 |
14:26:10.09 |
-18:43:01.5 |
HIP 70608 |
8.51 |
| 2026-04-10 12:00 |
14:25:55.46 |
-18:41:20.1 |
HIP 70608 |
12.19 |
| 2026-04-11 00:00 |
14:25:40.75 |
-18:39:37.8 |
HIP 70608 |
15.98 |
| 2026-04-11 12:00 |
14:25:25.96 |
-18:37:54.8 |
HIP 70608 |
19.83 |
| 2026-04-12 00:00 |
14:25:11.08 |
-18:36:11.1 |
HIP 70608 |
23.72 |
| 2026-04-12 12:00 |
14:24:56.13 |
-18:34:26.6 |
HIP 70608 |
27.64 |
| 2026-04-13 00:00 |
14:24:41.10 |
-18:32:41.3 |
HIP 70437 |
26.77 |
| 2026-04-13 12:00 |
14:24:25.99 |
-18:30:55.3 |
HIP 70437 |
25.01 |
| 2026-04-14 00:00 |
14:24:10.82 |
-18:29:08.6 |
HIP 70437 |
23.80 |
| 2026-04-14 12:00 |
14:23:55.57 |
-18:27:21.2 |
HIP 70437 |
23.22 |
| 2026-04-15 00:00 |
14:23:40.27 |
-18:25:33.0 |
HIP 70437 |
23.33 |
| 2026-04-15 12:00 |
14:23:24.90 |
-18:23:44.2 |
HIP 70288 |
21.88 |
| 2026-04-16 00:00 |
14:23:09.47 |
-18:21:54.8 |
HIP 70288 |
19.00 |