메타데이터
| 항목 |
값 |
| Designation |
P/2024 R2 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-10-01T23:06:13.608000Z |
| Orbit solution date (soln_date, UTC) |
2025-02-13T09:13:03Z |
| Obs used |
46 |
| NEO |
- |
| M1 |
15.600 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-09-03T12:43:40.080000Z |
| Discovery magnitude (MPC) |
20.72 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-09-12.0000000 |
| e |
0.26821638 |
| q (au) |
2.303780 |
| a (au) |
3.148171 |
| i (deg) |
15.120781 |
| Ω (om, deg) |
193.061486 |
| ω (w, deg) |
203.974490 |
| M (ma, deg) |
356.477630 |
밝기
산란 + 전체 선형
$$
M_a = (16.480 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.480 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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 |
11:07:46.77 |
+01:54:35.7 |
HIP 54336 |
13.36 |
| 2026-07-29 12:00 |
11:08:18.26 |
+01:52:22.3 |
HIP 54502 |
19.74 |
| 2026-07-30 00:00 |
11:08:49.79 |
+01:50:08.2 |
HIP 54502 |
14.64 |
| 2026-07-30 12:00 |
11:09:21.37 |
+01:47:53.5 |
HIP 54502 |
13.16 |
| 2026-07-31 00:00 |
11:09:53.00 |
+01:45:38.1 |
HIP 54502 |
16.33 |
| 2026-07-31 12:00 |
11:10:24.67 |
+01:43:22.1 |
HIP 54502 |
22.26 |
| 2026-08-01 00:00 |
11:10:56.39 |
+01:41:05.4 |
HIP 54675 |
24.23 |
| 2026-08-01 12:00 |
11:11:28.15 |
+01:38:48.1 |
HIP 54675 |
24.91 |
| 2026-08-02 00:00 |
11:11:59.96 |
+01:36:30.2 |
HIP 54675 |
28.11 |
| 2026-08-02 12:00 |
11:12:31.80 |
+01:34:11.6 |
HIP 54675 |
33.14 |
| 2026-08-03 00:00 |
11:13:03.70 |
+01:31:52.5 |
HIP 54633 |
38.86 |
| 2026-08-03 12:00 |
11:13:35.63 |
+01:29:32.6 |
HIP 54889 |
38.01 |
| 2026-08-04 00:00 |
11:14:07.60 |
+01:27:12.2 |
HIP 54889 |
34.14 |
| 2026-08-04 12:00 |
11:14:39.62 |
+01:24:51.2 |
HIP 54889 |
32.02 |
| 2026-08-05 00:00 |
11:15:11.68 |
+01:22:29.6 |
HIP 54889 |
31.99 |
| 2026-08-05 12:00 |
11:15:43.78 |
+01:20:07.4 |
HIP 54889 |
34.08 |
| 2026-08-06 00:00 |
11:16:15.92 |
+01:17:44.6 |
HIP 54889 |
37.94 |
| 2026-08-06 12:00 |
11:16:48.09 |
+01:15:21.2 |
HIP 55249 |
39.58 |
| 2026-08-07 00:00 |
11:17:20.31 |
+01:12:57.2 |
HIP 55249 |
35.21 |
| 2026-08-07 12:00 |
11:17:52.57 |
+01:10:32.6 |
HIP 55249 |
32.48 |
| 2026-08-08 00:00 |
11:18:24.86 |
+01:08:07.5 |
HIP 55277 |
27.79 |
| 2026-08-08 12:00 |
11:18:57.20 |
+01:05:41.8 |
HIP 55277 |
22.77 |
| 2026-08-09 00:00 |
11:19:29.57 |
+01:03:15.6 |
HIP 55277 |
20.16 |
| 2026-08-09 12:00 |
11:20:01.98 |
+01:00:48.8 |
HIP 55277 |
20.92 |
| 2026-08-10 00:00 |
11:20:34.42 |
+00:58:21.5 |
HIP 55277 |
24.74 |
| 2026-08-10 12:00 |
11:21:06.90 |
+00:55:53.6 |
HIP 55277 |
30.50 |
| 2026-08-11 00:00 |
11:21:39.42 |
+00:53:25.2 |
HIP 55277 |
37.32 |
| 2026-08-11 12:00 |
11:22:11.97 |
+00:50:56.2 |
HIP 55650 |
43.42 |
| 2026-08-12 00:00 |
11:22:44.55 |
+00:48:26.8 |
HIP 55650 |
40.93 |
| 2026-08-12 12:00 |
11:23:17.17 |
+00:45:56.8 |
HIP 55703 |
37.11 |
| 2026-08-13 00:00 |
11:23:49.82 |
+00:43:26.3 |
HIP 55703 |
34.82 |
| 2026-08-13 12:00 |
11:24:22.50 |
+00:40:55.3 |
HIP 55703 |
34.56 |
| 2026-08-14 00:00 |
11:24:55.21 |
+00:38:23.9 |
HIP 55703 |
36.37 |
| 2026-08-14 12:00 |
11:25:27.96 |
+00:35:51.9 |
HIP 55907 |
38.16 |
| 2026-08-15 00:00 |
11:26:00.74 |
+00:33:19.5 |
HIP 55907 |
33.50 |
| 2026-08-15 12:00 |
11:26:33.54 |
+00:30:46.6 |
HIP 55907 |
30.60 |
| 2026-08-16 00:00 |
11:27:06.38 |
+00:28:13.2 |
HIP 55907 |
29.97 |
| 2026-08-16 12:00 |
11:27:39.24 |
+00:25:39.4 |
HIP 55907 |
31.75 |
| 2026-08-17 00:00 |
11:28:12.13 |
+00:23:05.1 |
HIP 55907 |
35.60 |
| 2026-08-17 12:00 |
11:28:45.05 |
+00:20:30.4 |
HIP 55907 |
40.93 |
| 2026-08-18 00:00 |
11:29:18.00 |
+00:17:55.2 |
HIP 56056 |
38.49 |
| 2026-08-18 12:00 |
11:29:50.97 |
+00:15:19.7 |
HIP 56056 |
36.72 |
| 2026-08-19 00:00 |
11:30:23.97 |
+00:12:43.6 |
HIP 56272 |
36.35 |