메타데이터
| 항목 |
값 |
| Designation |
411P/Christensen |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2007-01-23T00:31:58.823040Z |
| Orbit solution date (soln_date, UTC) |
2025-04-24T09:42:33Z |
| Obs used |
225 |
| NEO |
- |
| M1 |
14.700 |
| K1 |
10.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2020-11-17T03:08:54.816000Z |
| Discovery magnitude (MPC) |
21.70 T |
| Discovery observatory (MPC) |
Z84 · Calar Alto-Schmidt |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-10-24.0000000 |
| e |
0.58199405 |
| q (au) |
2.427425 |
| a (au) |
5.807155 |
| i (deg) |
12.393842 |
| Ω (om, deg) |
77.817671 |
| ω (w, deg) |
46.668360 |
| M (ma, deg) |
173.679301 |
밝기
산란 + 전체 선형
$$
M_a = (12.891 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.891 |
| n |
6.000 |
| gf |
0.820 |
| gb |
-0.500 |
| k |
0.962 |
| δ90 |
1.000 |
| 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) |
| 2026-07-29 00:00 |
19:26:39.81 |
-29:43:01.5 |
HIP 95619 |
3.94 |
| 2026-07-29 12:00 |
19:26:27.55 |
-29:43:25.5 |
HIP 95619 |
6.39 |
| 2026-07-30 00:00 |
19:26:15.33 |
-29:43:49.1 |
HIP 95619 |
8.96 |
| 2026-07-30 12:00 |
19:26:03.17 |
-29:44:12.3 |
HIP 95619 |
11.58 |
| 2026-07-31 00:00 |
19:25:51.05 |
-29:44:35.1 |
HIP 95619 |
14.20 |
| 2026-07-31 12:00 |
19:25:38.98 |
-29:44:57.4 |
HIP 95619 |
16.82 |
| 2026-08-01 00:00 |
19:25:26.97 |
-29:45:19.4 |
HIP 95619 |
19.44 |
| 2026-08-01 12:00 |
19:25:15.01 |
-29:45:40.9 |
HIP 95619 |
22.05 |
| 2026-08-02 00:00 |
19:25:03.10 |
-29:46:02.1 |
HIP 95619 |
24.65 |
| 2026-08-02 12:00 |
19:24:51.25 |
-29:46:22.8 |
HIP 95619 |
27.24 |
| 2026-08-03 00:00 |
19:24:39.46 |
-29:46:43.1 |
HIP 95456 |
28.67 |
| 2026-08-03 12:00 |
19:24:27.73 |
-29:47:03.0 |
HIP 95456 |
29.57 |
| 2026-08-04 00:00 |
19:24:16.06 |
-29:47:22.5 |
HIP 95456 |
30.65 |
| 2026-08-04 12:00 |
19:24:04.44 |
-29:47:41.6 |
HIP 95203 |
30.87 |
| 2026-08-05 00:00 |
19:23:52.90 |
-29:48:00.3 |
HIP 95203 |
28.95 |
| 2026-08-05 12:00 |
19:23:41.41 |
-29:48:18.6 |
HIP 95203 |
27.14 |
| 2026-08-06 00:00 |
19:23:30.00 |
-29:48:36.4 |
HIP 95203 |
25.44 |
| 2026-08-06 12:00 |
19:23:18.65 |
-29:48:53.9 |
HIP 95203 |
23.90 |
| 2026-08-07 00:00 |
19:23:07.36 |
-29:49:10.9 |
HIP 95203 |
22.53 |
| 2026-08-07 12:00 |
19:22:56.15 |
-29:49:27.5 |
HIP 95164 |
21.24 |
| 2026-08-08 00:00 |
19:22:45.01 |
-29:49:43.7 |
HIP 95164 |
19.58 |
| 2026-08-08 12:00 |
19:22:33.94 |
-29:49:59.5 |
HIP 95164 |
18.10 |
| 2026-08-09 00:00 |
19:22:22.95 |
-29:50:14.9 |
HIP 95164 |
16.84 |
| 2026-08-09 12:00 |
19:22:12.03 |
-29:50:29.9 |
HIP 95164 |
15.85 |
| 2026-08-10 00:00 |
19:22:01.18 |
-29:50:44.4 |
HIP 95164 |
15.18 |
| 2026-08-10 12:00 |
19:21:50.42 |
-29:50:58.5 |
HIP 95164 |
14.85 |
| 2026-08-11 00:00 |
19:21:39.73 |
-29:51:12.3 |
HIP 95164 |
14.88 |
| 2026-08-11 12:00 |
19:21:29.13 |
-29:51:25.6 |
HIP 95164 |
15.26 |
| 2026-08-12 00:00 |
19:21:18.60 |
-29:51:38.5 |
HIP 95164 |
15.96 |
| 2026-08-12 12:00 |
19:21:08.16 |
-29:51:51.0 |
HIP 95003 |
15.91 |
| 2026-08-13 00:00 |
19:20:57.81 |
-29:52:03.1 |
HIP 95003 |
13.69 |
| 2026-08-13 12:00 |
19:20:47.54 |
-29:52:14.7 |
HIP 95003 |
11.50 |
| 2026-08-14 00:00 |
19:20:37.35 |
-29:52:26.0 |
HIP 95003 |
9.35 |
| 2026-08-14 12:00 |
19:20:27.26 |
-29:52:36.9 |
HIP 95003 |
7.25 |
| 2026-08-15 00:00 |
19:20:17.25 |
-29:52:47.3 |
HIP 95003 |
5.25 |
| 2026-08-15 12:00 |
19:20:07.33 |
-29:52:57.3 |
HIP 95003 |
3.48 |
| 2026-08-16 00:00 |
19:19:57.51 |
-29:53:07.0 |
HIP 95003 |
2.44 |
| 2026-08-16 12:00 |
19:19:47.78 |
-29:53:16.2 |
HIP 95003 |
2.97 |
| 2026-08-17 00:00 |
19:19:38.14 |
-29:53:25.0 |
HIP 95003 |
4.52 |
| 2026-08-17 12:00 |
19:19:28.59 |
-29:53:33.5 |
HIP 95003 |
6.37 |
| 2026-08-18 00:00 |
19:19:19.14 |
-29:53:41.5 |
HIP 95003 |
8.30 |
| 2026-08-18 12:00 |
19:19:09.79 |
-29:53:49.1 |
HIP 95003 |
10.26 |
| 2026-08-19 00:00 |
19:19:00.54 |
-29:53:56.3 |
HIP 95003 |
12.22 |