메타데이터
| 항목 |
값 |
| Designation |
C/2023 R2 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-08-12T01:57:59.866560Z |
| Orbit solution date (soln_date, UTC) |
2024-06-06T23:12:31Z |
| Obs used |
309 |
| NEO |
- |
| M1 |
12.900 |
| K1 |
6.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-09-10T14:09:06.796800Z |
| Discovery magnitude (MPC) |
20.68 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2023-10-29.0000000 |
| e |
1.00072698 |
| q (au) |
0.905829 |
| a (au) |
-1246.024129 |
| i (deg) |
30.735653 |
| Ω (om, deg) |
188.987598 |
| ω (w, deg) |
337.188855 |
| M (ma, deg) |
-0.006456 |
밝기
산란 + 전체 선형
$$
M_a = (13.443 + 3.943\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.443 |
| n |
3.943 |
| gf |
1.000 |
| gb |
-0.721 |
| 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) |
| 2026-05-12 00:00 |
20:46:49.02 |
+10:55:45.2 |
HIP 102582 |
7.93 |
| 2026-05-12 12:00 |
20:46:47.91 |
+10:57:22.9 |
HIP 102582 |
9.09 |
| 2026-05-13 00:00 |
20:46:46.67 |
+10:58:59.9 |
HIP 102582 |
10.39 |
| 2026-05-13 12:00 |
20:46:45.30 |
+11:00:36.3 |
HIP 102582 |
11.80 |
| 2026-05-14 00:00 |
20:46:43.79 |
+11:02:12.1 |
HIP 102510 |
10.87 |
| 2026-05-14 12:00 |
20:46:42.15 |
+11:03:47.3 |
HIP 102510 |
9.24 |
| 2026-05-15 00:00 |
20:46:40.38 |
+11:05:21.9 |
HIP 102510 |
7.61 |
| 2026-05-15 12:00 |
20:46:38.47 |
+11:06:55.8 |
HIP 102510 |
5.99 |
| 2026-05-16 00:00 |
20:46:36.43 |
+11:08:29.1 |
HIP 102510 |
4.36 |
| 2026-05-16 12:00 |
20:46:34.25 |
+11:10:01.7 |
HIP 102510 |
2.75 |
| 2026-05-17 00:00 |
20:46:31.94 |
+11:11:33.7 |
HIP 102510 |
1.16 |
| 2026-05-17 12:00 |
20:46:29.50 |
+11:13:05.0 |
HIP 102510 |
0.68 |
| 2026-05-18 00:00 |
20:46:26.93 |
+11:14:35.6 |
HIP 102510 |
2.21 |
| 2026-05-18 12:00 |
20:46:24.22 |
+11:16:05.5 |
HIP 102510 |
3.83 |
| 2026-05-19 00:00 |
20:46:21.38 |
+11:17:34.8 |
HIP 102510 |
5.46 |
| 2026-05-19 12:00 |
20:46:18.41 |
+11:19:03.3 |
HIP 102510 |
7.10 |
| 2026-05-20 00:00 |
20:46:15.31 |
+11:20:31.1 |
HIP 102510 |
8.74 |
| 2026-05-20 12:00 |
20:46:12.07 |
+11:21:58.2 |
HIP 102510 |
10.39 |
| 2026-05-21 00:00 |
20:46:08.71 |
+11:23:24.5 |
HIP 102510 |
12.04 |
| 2026-05-21 12:00 |
20:46:05.21 |
+11:24:50.1 |
HIP 102510 |
13.69 |
| 2026-05-22 00:00 |
20:46:01.58 |
+11:26:15.0 |
HIP 102450 |
13.81 |
| 2026-05-22 12:00 |
20:45:57.83 |
+11:27:39.1 |
HIP 102450 |
12.14 |
| 2026-05-23 00:00 |
20:45:53.94 |
+11:29:02.5 |
HIP 102450 |
10.47 |
| 2026-05-23 12:00 |
20:45:49.92 |
+11:30:25.1 |
HIP 102450 |
8.81 |
| 2026-05-24 00:00 |
20:45:45.78 |
+11:31:46.9 |
HIP 102450 |
7.16 |
| 2026-05-24 12:00 |
20:45:41.51 |
+11:33:07.9 |
HIP 102450 |
5.55 |
| 2026-05-25 00:00 |
20:45:37.10 |
+11:34:28.1 |
HIP 102450 |
4.03 |
| 2026-05-25 12:00 |
20:45:32.57 |
+11:35:47.5 |
HIP 102450 |
2.77 |
| 2026-05-26 00:00 |
20:45:27.92 |
+11:37:06.2 |
HIP 102450 |
2.28 |
| 2026-05-26 12:00 |
20:45:23.13 |
+11:38:24.0 |
HIP 102450 |
3.00 |
| 2026-05-27 00:00 |
20:45:18.22 |
+11:39:41.0 |
HIP 102450 |
4.37 |
| 2026-05-27 12:00 |
20:45:13.19 |
+11:40:57.1 |
HIP 102450 |
5.97 |
| 2026-05-28 00:00 |
20:45:08.03 |
+11:42:12.5 |
HIP 102450 |
7.67 |
| 2026-05-28 12:00 |
20:45:02.74 |
+11:43:26.9 |
HIP 102450 |
9.41 |
| 2026-05-29 00:00 |
20:44:57.33 |
+11:44:40.6 |
HIP 102450 |
11.19 |
| 2026-05-29 12:00 |
20:44:51.79 |
+11:45:53.4 |
HIP 102385 |
12.42 |
| 2026-05-30 00:00 |
20:44:46.13 |
+11:47:05.3 |
HIP 102385 |
11.19 |
| 2026-05-30 12:00 |
20:44:40.35 |
+11:48:16.3 |
HIP 102385 |
10.16 |
| 2026-05-31 00:00 |
20:44:34.44 |
+11:49:26.5 |
HIP 102385 |
9.41 |
| 2026-05-31 12:00 |
20:44:28.42 |
+11:50:35.8 |
HIP 102385 |
9.01 |
| 2026-06-01 00:00 |
20:44:22.27 |
+11:51:44.2 |
HIP 102385 |
9.02 |
| 2026-06-01 12:00 |
20:44:15.99 |
+11:52:51.7 |
HIP 102385 |
9.45 |
| 2026-06-02 00:00 |
20:44:09.60 |
+11:53:58.3 |
HIP 102385 |
10.26 |