메타데이터
| 항목 |
값 |
| Designation |
P/2023 M1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2023-12-14T10:50:57.154560Z |
| Orbit solution date (soln_date, UTC) |
2023-06-30T22:18:01Z |
| Obs used |
37 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
22.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-06-16T09:48:14.918400Z |
| Discovery magnitude (MPC) |
20.42 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2023-06-04.0000000 |
| e |
0.58789811 |
| q (au) |
2.825892 |
| a (au) |
6.857265 |
| i (deg) |
12.289932 |
| Ω (om, deg) |
216.866513 |
| ω (w, deg) |
79.702108 |
| M (ma, deg) |
349.381798 |
밝기
산란 + 전체 선형
$$
M_a = (14.340 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.340 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.741 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
04:35:04.15 |
+16:28:47.6 |
HIP 21421 |
12.37 |
| 2026-09-20 12:00 |
04:35:03.78 |
+16:28:06.2 |
HIP 21421 |
12.57 |
| 2026-09-21 00:00 |
04:35:03.25 |
+16:27:24.6 |
HIP 21421 |
12.85 |
| 2026-09-21 12:00 |
04:35:02.57 |
+16:26:42.6 |
HIP 21421 |
13.20 |
| 2026-09-22 00:00 |
04:35:01.73 |
+16:26:00.2 |
HIP 21421 |
13.61 |
| 2026-09-22 12:00 |
04:35:00.74 |
+16:25:17.6 |
HIP 21421 |
14.09 |
| 2026-09-23 00:00 |
04:34:59.59 |
+16:24:34.6 |
HIP 21421 |
14.62 |
| 2026-09-23 12:00 |
04:34:58.29 |
+16:23:51.4 |
HIP 21421 |
15.21 |
| 2026-09-24 00:00 |
04:34:56.83 |
+16:23:07.8 |
HIP 21421 |
15.86 |
| 2026-09-24 12:00 |
04:34:55.22 |
+16:22:23.9 |
HIP 21421 |
16.55 |
| 2026-09-25 00:00 |
04:34:53.46 |
+16:21:39.6 |
HIP 21421 |
17.29 |
| 2026-09-25 12:00 |
04:34:51.54 |
+16:20:55.1 |
HIP 21257 |
17.69 |
| 2026-09-26 00:00 |
04:34:49.47 |
+16:20:10.2 |
HIP 21257 |
17.14 |
| 2026-09-26 12:00 |
04:34:47.24 |
+16:19:25.1 |
HIP 21257 |
16.59 |
| 2026-09-27 00:00 |
04:34:44.86 |
+16:18:39.6 |
HIP 21257 |
16.04 |
| 2026-09-27 12:00 |
04:34:42.33 |
+16:17:53.9 |
HIP 21257 |
15.49 |
| 2026-09-28 00:00 |
04:34:39.64 |
+16:17:07.8 |
HIP 21257 |
14.95 |
| 2026-09-28 12:00 |
04:34:36.80 |
+16:16:21.5 |
HIP 21257 |
14.42 |
| 2026-09-29 00:00 |
04:34:33.81 |
+16:15:34.8 |
HIP 21257 |
13.91 |
| 2026-09-29 12:00 |
04:34:30.66 |
+16:14:47.9 |
HIP 21257 |
13.43 |
| 2026-09-30 00:00 |
04:34:27.36 |
+16:14:00.7 |
HIP 21257 |
13.00 |
| 2026-09-30 12:00 |
04:34:23.91 |
+16:13:13.1 |
HIP 21257 |
12.62 |
| 2026-10-01 00:00 |
04:34:20.31 |
+16:12:25.3 |
HIP 21257 |
12.31 |
| 2026-10-01 12:00 |
04:34:16.55 |
+16:11:37.2 |
HIP 21257 |
12.08 |
| 2026-10-02 00:00 |
04:34:12.64 |
+16:10:48.9 |
HIP 21257 |
11.94 |
| 2026-10-02 12:00 |
04:34:08.58 |
+16:10:00.2 |
HIP 21257 |
11.91 |
| 2026-10-03 00:00 |
04:34:04.37 |
+16:09:11.3 |
HIP 21257 |
12.01 |
| 2026-10-03 12:00 |
04:34:00.00 |
+16:08:22.1 |
HIP 21257 |
12.23 |
| 2026-10-04 00:00 |
04:33:55.49 |
+16:07:32.6 |
HIP 21257 |
12.57 |
| 2026-10-04 12:00 |
04:33:50.82 |
+16:06:42.9 |
HIP 21257 |
13.05 |
| 2026-10-05 00:00 |
04:33:46.00 |
+16:05:52.9 |
HIP 21257 |
13.65 |
| 2026-10-05 12:00 |
04:33:41.04 |
+16:05:02.6 |
HIP 21257 |
14.38 |
| 2026-10-06 00:00 |
04:33:35.92 |
+16:04:12.1 |
HIP 21257 |
15.21 |
| 2026-10-06 12:00 |
04:33:30.65 |
+16:03:21.3 |
HIP 21257 |
16.15 |
| 2026-10-07 00:00 |
04:33:25.24 |
+16:02:30.3 |
HIP 21257 |
17.18 |
| 2026-10-07 12:00 |
04:33:19.68 |
+16:01:39.0 |
HIP 21257 |
18.29 |
| 2026-10-08 00:00 |
04:33:13.97 |
+16:00:47.5 |
HIP 21257 |
19.49 |
| 2026-10-08 12:00 |
04:33:08.11 |
+15:59:55.7 |
HIP 21137 |
20.38 |
| 2026-10-09 00:00 |
04:33:02.11 |
+15:59:03.7 |
HIP 21137 |
18.71 |
| 2026-10-09 12:00 |
04:32:55.96 |
+15:58:11.5 |
HIP 21137 |
17.00 |
| 2026-10-10 00:00 |
04:32:49.67 |
+15:57:19.0 |
HIP 21137 |
15.26 |
| 2026-10-10 12:00 |
04:32:43.23 |
+15:56:26.3 |
HIP 21137 |
13.49 |
| 2026-10-11 00:00 |
04:32:36.64 |
+15:55:33.4 |
HIP 21137 |
11.69 |