메타데이터
| 항목 |
값 |
| Designation |
P/2024 T1 (Rankin) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-09-30T10:53:27.006720Z |
| Orbit solution date (soln_date, UTC) |
2025-02-20T14:12:25Z |
| Obs used |
158 |
| NEO |
- |
| M1 |
16.100 |
| K1 |
4.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-10-02T11:50:41.510400Z |
| Discovery magnitude (MPC) |
19.82 G |
| Discovery observatory (MPC) |
G96 · University of Arizona Mt. Lemmon Survey |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-11-28.0000000 |
| e |
0.65385983 |
| q (au) |
2.287077 |
| a (au) |
6.607373 |
| i (deg) |
17.619161 |
| Ω (om, deg) |
279.709192 |
| ω (w, deg) |
164.882104 |
| M (ma, deg) |
3.397502 |
밝기
산란 + 전체 선형
$$
M_a = (11.595 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.595 |
| n |
6.000 |
| gf |
0.944 |
| gb |
-0.765 |
| k |
0.997 |
| δ90 |
7.868 |
| 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) |
| 2026-07-29 00:00 |
12:21:41.61 |
-20:05:57.4 |
HIP 60199 |
15.98 |
| 2026-07-29 12:00 |
12:21:59.52 |
-20:06:25.4 |
HIP 60199 |
19.59 |
| 2026-07-30 00:00 |
12:22:17.52 |
-20:06:54.4 |
HIP 60457 |
19.34 |
| 2026-07-30 12:00 |
12:22:35.60 |
-20:07:24.4 |
HIP 60457 |
15.18 |
| 2026-07-31 00:00 |
12:22:53.77 |
-20:07:55.4 |
HIP 60457 |
11.08 |
| 2026-07-31 12:00 |
12:23:12.02 |
-20:08:27.4 |
HIP 60457 |
7.21 |
| 2026-08-01 00:00 |
12:23:30.35 |
-20:09:00.3 |
HIP 60457 |
4.31 |
| 2026-08-01 12:00 |
12:23:48.77 |
-20:09:34.3 |
HIP 60457 |
4.80 |
| 2026-08-02 00:00 |
12:24:07.27 |
-20:10:09.2 |
HIP 60457 |
8.12 |
| 2026-08-02 12:00 |
12:24:25.85 |
-20:10:45.1 |
HIP 60545 |
7.54 |
| 2026-08-03 00:00 |
12:24:44.51 |
-20:11:21.9 |
HIP 60545 |
7.11 |
| 2026-08-03 12:00 |
12:25:03.25 |
-20:11:59.8 |
HIP 60545 |
9.14 |
| 2026-08-04 00:00 |
12:25:22.07 |
-20:12:38.5 |
HIP 60545 |
12.52 |
| 2026-08-04 12:00 |
12:25:40.96 |
-20:13:18.3 |
HIP 60545 |
16.45 |
| 2026-08-05 00:00 |
12:25:59.94 |
-20:13:58.9 |
HIP 60545 |
20.63 |
| 2026-08-05 12:00 |
12:26:18.99 |
-20:14:40.6 |
HIP 60545 |
24.95 |
| 2026-08-06 00:00 |
12:26:38.12 |
-20:15:23.1 |
HIP 60545 |
29.35 |
| 2026-08-06 12:00 |
12:26:57.33 |
-20:16:06.6 |
HIP 60545 |
33.81 |
| 2026-08-07 00:00 |
12:27:16.61 |
-20:16:51.1 |
HIP 60545 |
38.32 |
| 2026-08-07 12:00 |
12:27:35.96 |
-20:17:36.4 |
HIP 60545 |
42.86 |
| 2026-08-08 00:00 |
12:27:55.39 |
-20:18:22.7 |
HIP 60545 |
47.44 |
| 2026-08-08 12:00 |
12:28:14.90 |
-20:19:09.9 |
HIP 60545 |
52.04 |
| 2026-08-09 00:00 |
12:28:34.47 |
-20:19:58.0 |
HIP 60785 |
55.68 |
| 2026-08-09 12:00 |
12:28:54.12 |
-20:20:47.0 |
HIP 61083 |
55.25 |
| 2026-08-10 00:00 |
12:29:13.84 |
-20:21:37.0 |
HIP 61155 |
52.72 |
| 2026-08-10 12:00 |
12:29:33.63 |
-20:22:27.8 |
HIP 61155 |
48.92 |
| 2026-08-11 00:00 |
12:29:53.49 |
-20:23:19.5 |
HIP 61155 |
45.27 |
| 2026-08-11 12:00 |
12:30:13.42 |
-20:24:12.1 |
HIP 61155 |
41.82 |
| 2026-08-12 00:00 |
12:30:33.42 |
-20:25:05.6 |
HIP 61155 |
38.61 |
| 2026-08-12 12:00 |
12:30:53.49 |
-20:26:00.0 |
HIP 61155 |
35.74 |
| 2026-08-13 00:00 |
12:31:13.62 |
-20:26:55.2 |
HIP 61155 |
33.30 |
| 2026-08-13 12:00 |
12:31:33.83 |
-20:27:51.3 |
HIP 61155 |
31.38 |
| 2026-08-14 00:00 |
12:31:54.09 |
-20:28:48.3 |
HIP 61155 |
30.10 |
| 2026-08-14 12:00 |
12:32:14.42 |
-20:29:46.1 |
HIP 61155 |
29.56 |
| 2026-08-15 00:00 |
12:32:34.82 |
-20:30:44.8 |
HIP 61155 |
29.80 |
| 2026-08-15 12:00 |
12:32:55.28 |
-20:31:44.3 |
HIP 61155 |
30.80 |
| 2026-08-16 00:00 |
12:33:15.80 |
-20:32:44.7 |
HIP 61259 |
32.36 |
| 2026-08-16 12:00 |
12:33:36.38 |
-20:33:45.9 |
HIP 61476 |
31.66 |
| 2026-08-17 00:00 |
12:33:57.02 |
-20:34:47.9 |
HIP 61476 |
27.17 |
| 2026-08-17 12:00 |
12:34:17.73 |
-20:35:50.7 |
HIP 61476 |
22.85 |
| 2026-08-18 00:00 |
12:34:38.49 |
-20:36:54.4 |
HIP 61476 |
18.84 |
| 2026-08-18 12:00 |
12:34:59.31 |
-20:37:58.8 |
HIP 61496 |
15.29 |
| 2026-08-19 00:00 |
12:35:20.19 |
-20:39:04.1 |
HIP 61496 |
11.69 |