메타데이터
| 항목 |
값 |
| Designation |
448P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-09-08T00:31:25.878720Z |
| Orbit solution date (soln_date, UTC) |
2024-08-11T00:12:25Z |
| Obs used |
184 |
| NEO |
- |
| M1 |
18.000 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2008-10-01T09:02:51.072000Z |
| Discovery magnitude (MPC) |
20.00 V |
| Discovery observatory (MPC) |
703 · Catalina Sky Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-04-24.0000000 |
| e |
0.41897178 |
| q (au) |
2.109134 |
| a (au) |
3.630003 |
| i (deg) |
12.152893 |
| Ω (om, deg) |
161.780755 |
| ω (w, deg) |
219.028807 |
| M (ma, deg) |
184.282775 |
밝기
산란 + 전체 선형
$$
M_a = (19.465 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
19.465 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.629 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
13:49:53.60 |
-00:59:07.3 |
HIP 67373 |
20.30 |
| 2026-03-26 12:00 |
13:49:39.01 |
-00:56:52.9 |
HIP 67373 |
17.12 |
| 2026-03-27 00:00 |
13:49:24.30 |
-00:54:38.4 |
HIP 67373 |
14.50 |
| 2026-03-27 12:00 |
13:49:09.49 |
-00:52:23.8 |
HIP 67373 |
12.81 |
| 2026-03-28 00:00 |
13:48:54.58 |
-00:50:09.2 |
HIP 67373 |
12.45 |
| 2026-03-28 12:00 |
13:48:39.56 |
-00:47:54.5 |
HIP 67373 |
13.56 |
| 2026-03-29 00:00 |
13:48:24.44 |
-00:45:39.8 |
HIP 67313 |
12.77 |
| 2026-03-29 12:00 |
13:48:09.22 |
-00:43:25.0 |
HIP 67313 |
8.78 |
| 2026-03-30 00:00 |
13:47:53.90 |
-00:41:10.3 |
HIP 67313 |
5.50 |
| 2026-03-30 12:00 |
13:47:38.49 |
-00:38:55.6 |
HIP 67313 |
4.79 |
| 2026-03-31 00:00 |
13:47:22.99 |
-00:36:41.0 |
HIP 67313 |
7.47 |
| 2026-03-31 12:00 |
13:47:07.40 |
-00:34:26.4 |
HIP 67313 |
11.37 |
| 2026-04-01 00:00 |
13:46:51.72 |
-00:32:11.9 |
HIP 67211 |
9.38 |
| 2026-04-01 12:00 |
13:46:35.96 |
-00:29:57.5 |
HIP 67211 |
4.85 |
| 2026-04-02 00:00 |
13:46:20.12 |
-00:27:43.2 |
HIP 67211 |
0.32 |
| 2026-04-02 12:00 |
13:46:04.20 |
-00:25:29.1 |
HIP 67211 |
4.26 |
| 2026-04-03 00:00 |
13:45:48.20 |
-00:23:15.1 |
HIP 67211 |
8.85 |
| 2026-04-03 12:00 |
13:45:32.12 |
-00:21:01.3 |
HIP 67211 |
13.44 |
| 2026-04-04 00:00 |
13:45:15.98 |
-00:18:47.7 |
HIP 67211 |
18.05 |
| 2026-04-04 12:00 |
13:44:59.76 |
-00:16:34.3 |
HIP 67211 |
22.67 |
| 2026-04-05 00:00 |
13:44:43.48 |
-00:14:21.1 |
HIP 67211 |
27.31 |
| 2026-04-05 12:00 |
13:44:27.13 |
-00:12:08.2 |
HIP 67211 |
31.96 |
| 2026-04-06 00:00 |
13:44:10.72 |
-00:09:55.5 |
HIP 66840 |
33.81 |
| 2026-04-06 12:00 |
13:43:54.26 |
-00:07:43.1 |
HIP 66840 |
29.62 |
| 2026-04-07 00:00 |
13:43:37.73 |
-00:05:31.1 |
HIP 66840 |
25.58 |
| 2026-04-07 12:00 |
13:43:21.16 |
-00:03:19.3 |
HIP 66840 |
21.78 |
| 2026-04-08 00:00 |
13:43:04.53 |
-00:01:07.9 |
HIP 66840 |
18.39 |
| 2026-04-08 12:00 |
13:42:47.85 |
+00:01:03.1 |
HIP 66840 |
15.68 |
| 2026-04-09 00:00 |
13:42:31.13 |
+00:03:13.7 |
HIP 66840 |
14.04 |
| 2026-04-09 12:00 |
13:42:14.36 |
+00:05:24.0 |
HIP 66840 |
13.89 |
| 2026-04-10 00:00 |
13:41:57.56 |
+00:07:33.8 |
HIP 66840 |
15.26 |
| 2026-04-10 12:00 |
13:41:40.72 |
+00:09:43.2 |
HIP 66840 |
17.81 |
| 2026-04-11 00:00 |
13:41:23.84 |
+00:11:52.1 |
HIP 66840 |
21.12 |
| 2026-04-11 12:00 |
13:41:06.93 |
+00:14:00.5 |
HIP 66673 |
22.90 |
| 2026-04-12 00:00 |
13:40:49.99 |
+00:16:08.5 |
HIP 66673 |
21.92 |
| 2026-04-12 12:00 |
13:40:33.03 |
+00:18:15.9 |
HIP 66673 |
21.93 |
| 2026-04-13 00:00 |
13:40:16.04 |
+00:20:22.8 |
HIP 66673 |
22.93 |
| 2026-04-13 12:00 |
13:39:59.03 |
+00:22:29.1 |
HIP 66673 |
24.80 |
| 2026-04-14 00:00 |
13:39:42.00 |
+00:24:34.9 |
HIP 66673 |
27.37 |
| 2026-04-14 12:00 |
13:39:24.96 |
+00:26:40.0 |
HIP 66673 |
30.46 |
| 2026-04-15 00:00 |
13:39:07.91 |
+00:28:44.6 |
HIP 66673 |
33.92 |
| 2026-04-15 12:00 |
13:38:50.85 |
+00:30:48.5 |
HIP 66637 |
36.18 |
| 2026-04-16 00:00 |
13:38:33.78 |
+00:32:51.8 |
HIP 66637 |
35.81 |