메타데이터
| 항목 |
값 |
| Designation |
324P/La Sagra |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-06-22T21:26:10.155840Z |
| Orbit solution date (soln_date, UTC) |
2021-11-20T19:13:19Z |
| Obs used |
500 |
| NEO |
- |
| M1 |
7.500 |
| K1 |
25.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2012-12-12.0000000 |
| e |
0.15378585 |
| q (au) |
2.617981 |
| a (au) |
3.093757 |
| i (deg) |
21.420027 |
| Ω (om, deg) |
270.651010 |
| ω (w, deg) |
58.900249 |
| M (ma, deg) |
163.573823 |
밝기
산란 + 전체 선형
$$
M_a = (16.308 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.308 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-0.501 |
| k |
1.000 |
| δ90 |
2.417 |
| 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) |
| 2026-03-26 00:00 |
19:58:08.27 |
-17:45:18.1 |
HIP 98361 |
17.88 |
| 2026-03-26 12:00 |
19:58:46.44 |
-17:40:48.0 |
HIP 98361 |
17.22 |
| 2026-03-27 00:00 |
19:59:24.45 |
-17:36:17.1 |
HIP 98361 |
21.89 |
| 2026-03-27 12:00 |
20:00:02.28 |
-17:31:45.4 |
HIP 98623 |
26.13 |
| 2026-03-28 00:00 |
20:00:39.94 |
-17:27:12.7 |
HIP 98623 |
18.08 |
| 2026-03-28 12:00 |
20:01:17.43 |
-17:22:39.2 |
HIP 98623 |
13.20 |
| 2026-03-29 00:00 |
20:01:54.73 |
-17:18:04.9 |
HIP 98623 |
14.94 |
| 2026-03-29 12:00 |
20:02:31.87 |
-17:13:29.6 |
HIP 98724 |
10.94 |
| 2026-03-30 00:00 |
20:03:08.82 |
-17:08:53.6 |
HIP 98724 |
12.02 |
| 2026-03-30 12:00 |
20:03:45.60 |
-17:04:16.6 |
HIP 98724 |
19.16 |
| 2026-03-31 00:00 |
20:04:22.20 |
-16:59:38.9 |
HIP 98724 |
28.03 |
| 2026-03-31 12:00 |
20:04:58.62 |
-16:55:00.3 |
HIP 98947 |
33.08 |
| 2026-04-01 00:00 |
20:05:34.86 |
-16:50:20.8 |
HIP 98947 |
28.12 |
| 2026-04-01 12:00 |
20:06:10.91 |
-16:45:40.6 |
HIP 98947 |
26.08 |
| 2026-04-02 00:00 |
20:06:46.78 |
-16:40:59.5 |
HIP 98947 |
27.58 |
| 2026-04-02 12:00 |
20:07:22.47 |
-16:36:17.5 |
HIP 98947 |
32.09 |
| 2026-04-03 00:00 |
20:07:57.98 |
-16:31:34.8 |
HIP 98947 |
38.55 |
| 2026-04-03 12:00 |
20:08:33.29 |
-16:26:51.2 |
HIP 99224 |
43.13 |
| 2026-04-04 00:00 |
20:09:08.42 |
-16:22:06.9 |
HIP 99224 |
39.28 |
| 2026-04-04 12:00 |
20:09:43.36 |
-16:17:21.7 |
HIP 99491 |
35.59 |
| 2026-04-05 00:00 |
20:10:18.12 |
-16:12:35.8 |
HIP 99491 |
26.48 |
| 2026-04-05 12:00 |
20:10:52.68 |
-16:07:49.0 |
HIP 99491 |
17.91 |
| 2026-04-06 00:00 |
20:11:27.04 |
-16:03:01.5 |
HIP 99491 |
11.12 |
| 2026-04-06 12:00 |
20:12:01.22 |
-15:58:13.2 |
HIP 99491 |
10.39 |
| 2026-04-07 00:00 |
20:12:35.20 |
-15:53:24.1 |
HIP 99491 |
16.49 |
| 2026-04-07 12:00 |
20:13:08.98 |
-15:48:34.2 |
HIP 99651 |
22.92 |
| 2026-04-08 00:00 |
20:13:42.57 |
-15:43:43.6 |
HIP 99651 |
18.46 |
| 2026-04-08 12:00 |
20:14:15.95 |
-15:38:52.2 |
HIP 99651 |
18.24 |
| 2026-04-09 00:00 |
20:14:49.14 |
-15:34:00.0 |
HIP 99773 |
14.33 |
| 2026-04-09 12:00 |
20:15:22.12 |
-15:29:07.1 |
HIP 99773 |
14.54 |
| 2026-04-10 00:00 |
20:15:54.90 |
-15:24:13.5 |
HIP 99947 |
18.15 |
| 2026-04-10 12:00 |
20:16:27.48 |
-15:19:19.1 |
HIP 99947 |
9.54 |
| 2026-04-11 00:00 |
20:16:59.85 |
-15:14:24.0 |
HIP 99947 |
4.86 |
| 2026-04-11 12:00 |
20:17:32.02 |
-15:09:28.2 |
HIP 99947 |
11.21 |
| 2026-04-12 00:00 |
20:18:03.97 |
-15:04:31.7 |
HIP 99947 |
19.88 |
| 2026-04-12 12:00 |
20:18:35.72 |
-14:59:34.4 |
HIP 100244 |
18.50 |
| 2026-04-13 00:00 |
20:19:07.25 |
-14:54:36.5 |
HIP 100244 |
12.61 |
| 2026-04-13 12:00 |
20:19:38.57 |
-14:49:37.8 |
HIP 100244 |
11.89 |
| 2026-04-14 00:00 |
20:20:09.67 |
-14:44:38.5 |
HIP 100325 |
9.24 |
| 2026-04-14 12:00 |
20:20:40.56 |
-14:39:38.5 |
HIP 100325 |
7.59 |
| 2026-04-15 00:00 |
20:21:11.23 |
-14:34:37.8 |
HIP 100345 |
12.52 |
| 2026-04-15 12:00 |
20:21:41.69 |
-14:29:36.4 |
HIP 100345 |
19.93 |
| 2026-04-16 00:00 |
20:22:11.92 |
-14:24:34.4 |
HIP 100556 |
20.21 |