메타데이터
| 항목 |
값 |
| Designation |
P/2022 W1 (Rankin) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2022-09-15T16:21:11.352960Z |
| Orbit solution date (soln_date, UTC) |
2023-02-13T23:14:02Z |
| Obs used |
111 |
| NEO |
- |
| M1 |
15.400 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-11-18T06:11:50.553600Z |
| Discovery magnitude (MPC) |
19.59 G |
| Discovery observatory (MPC) |
G96 · University of Arizona Mt. Lemmon Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-11-28.0000000 |
| e |
0.51668991 |
| q (au) |
3.367776 |
| a (au) |
6.968147 |
| i (deg) |
13.466326 |
| Ω (om, deg) |
38.816891 |
| ω (w, deg) |
17.777254 |
| M (ma, deg) |
3.928641 |
밝기
산란 + 전체 선형
$$
M_a = (14.535 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.535 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.901 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
12:46:01.77 |
+01:03:49.2 |
HIP 62265 |
8.44 |
| 2026-09-20 12:00 |
12:46:16.57 |
+01:01:58.3 |
HIP 62265 |
11.11 |
| 2026-09-21 00:00 |
12:46:31.39 |
+01:00:07.6 |
HIP 62265 |
14.50 |
| 2026-09-21 12:00 |
12:46:46.22 |
+00:58:16.9 |
HIP 62265 |
18.20 |
| 2026-09-22 00:00 |
12:47:01.07 |
+00:56:26.3 |
HIP 62444 |
19.20 |
| 2026-09-22 12:00 |
12:47:15.94 |
+00:54:35.8 |
HIP 62444 |
18.60 |
| 2026-09-23 00:00 |
12:47:30.81 |
+00:52:45.3 |
HIP 62444 |
18.90 |
| 2026-09-23 12:00 |
12:47:45.70 |
+00:50:55.0 |
HIP 62444 |
20.07 |
| 2026-09-24 00:00 |
12:48:00.61 |
+00:49:04.7 |
HIP 62444 |
21.97 |
| 2026-09-24 12:00 |
12:48:15.52 |
+00:47:14.6 |
HIP 62417 |
23.74 |
| 2026-09-25 00:00 |
12:48:30.45 |
+00:45:24.5 |
HIP 62633 |
23.66 |
| 2026-09-25 12:00 |
12:48:45.39 |
+00:43:34.5 |
HIP 62633 |
19.63 |
| 2026-09-26 00:00 |
12:49:00.35 |
+00:41:44.7 |
HIP 62633 |
15.65 |
| 2026-09-26 12:00 |
12:49:15.31 |
+00:39:54.9 |
HIP 62633 |
11.81 |
| 2026-09-27 00:00 |
12:49:30.28 |
+00:38:05.3 |
HIP 62633 |
8.27 |
| 2026-09-27 12:00 |
12:49:45.26 |
+00:36:15.8 |
HIP 62633 |
5.67 |
| 2026-09-28 00:00 |
12:50:00.25 |
+00:34:26.4 |
HIP 62633 |
5.53 |
| 2026-09-28 12:00 |
12:50:15.25 |
+00:32:37.1 |
HIP 62633 |
7.98 |
| 2026-09-29 00:00 |
12:50:30.26 |
+00:30:47.9 |
HIP 62633 |
11.47 |
| 2026-09-29 12:00 |
12:50:45.28 |
+00:28:58.9 |
HIP 62759 |
13.48 |
| 2026-09-30 00:00 |
12:51:00.30 |
+00:27:10.0 |
HIP 62759 |
10.05 |
| 2026-09-30 12:00 |
12:51:15.33 |
+00:25:21.2 |
HIP 62759 |
7.41 |
| 2026-10-01 00:00 |
12:51:30.37 |
+00:23:32.5 |
HIP 62759 |
6.60 |
| 2026-10-01 12:00 |
12:51:45.41 |
+00:21:44.0 |
HIP 62759 |
8.19 |
| 2026-10-02 00:00 |
12:52:00.46 |
+00:19:55.6 |
HIP 62759 |
11.19 |
| 2026-10-02 12:00 |
12:52:15.51 |
+00:18:07.4 |
HIP 62776 |
14.29 |
| 2026-10-03 00:00 |
12:52:30.57 |
+00:16:19.3 |
HIP 62776 |
14.80 |
| 2026-10-03 12:00 |
12:52:45.63 |
+00:14:31.4 |
HIP 62776 |
16.39 |
| 2026-10-04 00:00 |
12:53:00.70 |
+00:12:43.6 |
HIP 62776 |
18.80 |
| 2026-10-04 12:00 |
12:53:15.76 |
+00:10:56.0 |
HIP 62776 |
21.74 |
| 2026-10-05 00:00 |
12:53:30.83 |
+00:09:08.5 |
HIP 62776 |
25.04 |
| 2026-10-05 12:00 |
12:53:45.90 |
+00:07:21.2 |
HIP 63093 |
28.42 |
| 2026-10-06 00:00 |
12:54:00.97 |
+00:05:34.1 |
HIP 63093 |
24.47 |
| 2026-10-06 12:00 |
12:54:16.05 |
+00:03:47.2 |
HIP 63093 |
20.60 |
| 2026-10-07 00:00 |
12:54:31.12 |
+00:02:00.4 |
HIP 63093 |
16.88 |
| 2026-10-07 12:00 |
12:54:46.19 |
+00:00:13.8 |
HIP 63093 |
13.42 |
| 2026-10-08 00:00 |
12:55:01.26 |
-00:01:32.6 |
HIP 63093 |
10.49 |
| 2026-10-08 12:00 |
12:55:16.33 |
-00:03:18.9 |
HIP 63093 |
8.63 |
| 2026-10-09 00:00 |
12:55:31.39 |
-00:05:04.9 |
HIP 63093 |
8.58 |
| 2026-10-09 12:00 |
12:55:46.46 |
-00:06:50.7 |
HIP 63093 |
10.36 |
| 2026-10-10 00:00 |
12:56:01.51 |
-00:08:36.4 |
HIP 63093 |
13.25 |
| 2026-10-10 12:00 |
12:56:16.57 |
-00:10:21.8 |
HIP 63093 |
16.68 |
| 2026-10-11 00:00 |
12:56:31.62 |
-00:12:07.0 |
HIP 63093 |
20.37 |