P/2022 W1 (Rankin)
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 · 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) |
| 2026-02-03 00:00 |
12:49:18.97 |
+04:04:59.4 |
HIP 62596 |
16.38 |
| 2026-02-03 12:00 |
12:49:14.78 |
+04:05:43.6 |
HIP 62596 |
17.37 |
| 2026-02-04 00:00 |
12:49:10.46 |
+04:06:28.4 |
HIP 62596 |
18.42 |
| 2026-02-04 12:00 |
12:49:06.01 |
+04:07:13.9 |
HIP 62596 |
19.51 |
| 2026-02-05 00:00 |
12:49:01.42 |
+04:08:00.0 |
HIP 62596 |
20.66 |
| 2026-02-05 12:00 |
12:48:56.72 |
+04:08:46.7 |
HIP 62596 |
21.86 |
| 2026-02-06 00:00 |
12:48:51.88 |
+04:09:34.1 |
HIP 62596 |
23.11 |
| 2026-02-06 12:00 |
12:48:46.91 |
+04:10:22.0 |
HIP 62401 |
22.13 |
| 2026-02-07 00:00 |
12:48:41.82 |
+04:11:10.6 |
HIP 62401 |
20.95 |
| 2026-02-07 12:00 |
12:48:36.61 |
+04:11:59.7 |
HIP 62401 |
19.78 |
| 2026-02-08 00:00 |
12:48:31.26 |
+04:12:49.4 |
HIP 62401 |
18.63 |
| 2026-02-08 12:00 |
12:48:25.79 |
+04:13:39.7 |
HIP 62401 |
17.52 |
| 2026-02-09 00:00 |
12:48:20.20 |
+04:14:30.6 |
HIP 62401 |
16.47 |
| 2026-02-09 12:00 |
12:48:14.48 |
+04:15:22.1 |
HIP 62401 |
15.49 |
| 2026-02-10 00:00 |
12:48:08.64 |
+04:16:14.1 |
HIP 62401 |
14.62 |
| 2026-02-10 12:00 |
12:48:02.68 |
+04:17:06.7 |
HIP 62401 |
13.88 |
| 2026-02-11 00:00 |
12:47:56.59 |
+04:17:59.8 |
HIP 62401 |
13.31 |
| 2026-02-11 12:00 |
12:47:50.38 |
+04:18:53.4 |
HIP 62401 |
12.94 |
| 2026-02-12 00:00 |
12:47:44.05 |
+04:19:47.6 |
HIP 62401 |
12.81 |
| 2026-02-12 12:00 |
12:47:37.60 |
+04:20:42.3 |
HIP 62401 |
12.93 |
| 2026-02-13 00:00 |
12:47:31.03 |
+04:21:37.5 |
HIP 62401 |
13.31 |
| 2026-02-13 12:00 |
12:47:24.34 |
+04:22:33.2 |
HIP 62401 |
13.94 |
| 2026-02-14 00:00 |
12:47:17.53 |
+04:23:29.4 |
HIP 62401 |
14.80 |
| 2026-02-14 12:00 |
12:47:10.60 |
+04:24:26.0 |
HIP 62401 |
15.86 |
| 2026-02-15 00:00 |
12:47:03.56 |
+04:25:23.2 |
HIP 62401 |
17.10 |
| 2026-02-15 12:00 |
12:46:56.40 |
+04:26:20.8 |
HIP 62401 |
18.49 |
| 2026-02-16 00:00 |
12:46:49.13 |
+04:27:18.9 |
HIP 62401 |
20.00 |
| 2026-02-16 12:00 |
12:46:41.74 |
+04:28:17.4 |
HIP 62240 |
20.66 |
| 2026-02-17 00:00 |
12:46:34.24 |
+04:29:16.4 |
HIP 62240 |
19.27 |
| 2026-02-17 12:00 |
12:46:26.63 |
+04:30:15.8 |
HIP 62240 |
18.00 |
| 2026-02-18 00:00 |
12:46:18.91 |
+04:31:15.7 |
HIP 62240 |
16.89 |
| 2026-02-18 12:00 |
12:46:11.07 |
+04:32:15.9 |
HIP 62240 |
15.97 |
| 2026-02-19 00:00 |
12:46:03.13 |
+04:33:16.5 |
HIP 62240 |
15.31 |
| 2026-02-19 12:00 |
12:45:55.08 |
+04:34:17.5 |
HIP 62240 |
14.94 |
| 2026-02-20 00:00 |
12:45:46.92 |
+04:35:18.9 |
HIP 62240 |
14.90 |
| 2026-02-20 12:00 |
12:45:38.66 |
+04:36:20.7 |
HIP 62240 |
15.21 |
| 2026-02-21 00:00 |
12:45:30.29 |
+04:37:22.8 |
HIP 62240 |
15.85 |
| 2026-02-21 12:00 |
12:45:21.81 |
+04:38:25.3 |
HIP 62240 |
16.80 |
| 2026-02-22 00:00 |
12:45:13.24 |
+04:39:28.1 |
HIP 62240 |
18.01 |
| 2026-02-22 12:00 |
12:45:04.56 |
+04:40:31.3 |
HIP 62240 |
19.46 |
| 2026-02-23 00:00 |
12:44:55.79 |
+04:41:34.7 |
HIP 62240 |
21.09 |
| 2026-02-23 12:00 |
12:44:46.91 |
+04:42:38.5 |
HIP 62240 |
22.88 |
| 2026-02-24 00:00 |
12:44:37.94 |
+04:43:42.5 |
HIP 62240 |
24.80 |