메타데이터
| 항목 |
값 |
| Designation |
266P/Christensen |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2020-04-19T20:13:28.701120Z |
| Orbit solution date (soln_date, UTC) |
2021-05-04T16:40:00Z |
| Obs used |
520 |
| NEO |
- |
| M1 |
11.000 |
| K1 |
16.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-06-27.0000000 |
| e |
0.33964561 |
| q (au) |
2.332338 |
| a (au) |
3.531948 |
| i (deg) |
3.427133 |
| Ω (om, deg) |
5.003630 |
| ω (w, deg) |
98.009686 |
| M (ma, deg) |
207.380781 |
밝기
산란 + 전체 선형
$$
M_a = (14.294 + 5.175\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.294 |
| n |
5.175 |
| gf |
0.862 |
| gb |
-0.500 |
| k |
0.898 |
| δ90 |
1.451 |
| 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 |
01:27:33.37 |
+10:23:30.5 |
HIP 6919 |
22.77 |
| 2026-03-26 12:00 |
01:28:19.11 |
+10:28:12.2 |
HIP 6919 |
11.62 |
| 2026-03-27 00:00 |
01:29:04.94 |
+10:32:53.9 |
HIP 6919 |
6.97 |
| 2026-03-27 12:00 |
01:29:50.85 |
+10:37:35.6 |
HIP 6919 |
16.14 |
| 2026-03-28 00:00 |
01:30:36.84 |
+10:42:17.3 |
HIP 7117 |
19.59 |
| 2026-03-28 12:00 |
01:31:22.91 |
+10:46:58.9 |
HIP 7117 |
8.01 |
| 2026-03-29 00:00 |
01:32:09.06 |
+10:51:40.6 |
HIP 7117 |
6.70 |
| 2026-03-29 12:00 |
01:32:55.30 |
+10:56:22.2 |
HIP 7277 |
12.01 |
| 2026-03-30 00:00 |
01:33:41.61 |
+11:01:03.8 |
HIP 7277 |
6.82 |
| 2026-03-30 12:00 |
01:34:28.00 |
+11:05:45.3 |
HIP 7328 |
10.77 |
| 2026-03-31 00:00 |
01:35:14.48 |
+11:10:26.8 |
HIP 7397 |
15.72 |
| 2026-03-31 12:00 |
01:36:01.03 |
+11:15:08.3 |
HIP 7397 |
14.59 |
| 2026-04-01 00:00 |
01:36:47.66 |
+11:19:49.7 |
HIP 7397 |
22.00 |
| 2026-04-01 12:00 |
01:37:34.38 |
+11:24:31.0 |
HIP 7397 |
32.58 |
| 2026-04-02 00:00 |
01:38:21.17 |
+11:29:12.2 |
HIP 7575 |
31.88 |
| 2026-04-02 12:00 |
01:39:08.05 |
+11:33:53.4 |
HIP 7797 |
25.74 |
| 2026-04-03 00:00 |
01:39:55.00 |
+11:38:34.5 |
HIP 7797 |
15.38 |
| 2026-04-03 12:00 |
01:40:42.04 |
+11:43:15.5 |
HIP 7797 |
10.90 |
| 2026-04-04 00:00 |
01:41:29.15 |
+11:47:56.4 |
HIP 7935 |
11.98 |
| 2026-04-04 12:00 |
01:42:16.35 |
+11:52:37.2 |
HIP 7935 |
5.95 |
| 2026-04-05 00:00 |
01:43:03.62 |
+11:57:17.9 |
HIP 7935 |
15.43 |
| 2026-04-05 12:00 |
01:43:50.97 |
+12:01:58.5 |
HIP 8099 |
19.08 |
| 2026-04-06 00:00 |
01:44:38.41 |
+12:06:38.9 |
HIP 8099 |
25.38 |
| 2026-04-06 12:00 |
01:45:25.92 |
+12:11:19.3 |
HIP 8256 |
18.64 |
| 2026-04-07 00:00 |
01:46:13.51 |
+12:15:59.4 |
HIP 8275 |
10.68 |
| 2026-04-07 12:00 |
01:47:01.18 |
+12:20:39.5 |
HIP 8275 |
6.83 |
| 2026-04-08 00:00 |
01:47:48.93 |
+12:25:19.4 |
HIP 8275 |
17.16 |
| 2026-04-08 12:00 |
01:48:36.77 |
+12:29:59.2 |
HIP 8465 |
10.51 |
| 2026-04-09 00:00 |
01:49:24.68 |
+12:34:38.8 |
HIP 8465 |
11.76 |
| 2026-04-09 12:00 |
01:50:12.66 |
+12:39:18.2 |
HIP 8465 |
21.99 |
| 2026-04-10 00:00 |
01:51:00.73 |
+12:43:57.5 |
HIP 8754 |
29.24 |
| 2026-04-10 12:00 |
01:51:48.88 |
+12:48:36.5 |
HIP 8754 |
24.98 |
| 2026-04-11 00:00 |
01:52:37.10 |
+12:53:15.4 |
HIP 8827 |
17.82 |
| 2026-04-11 12:00 |
01:53:25.41 |
+12:57:54.1 |
HIP 8827 |
16.99 |
| 2026-04-12 00:00 |
01:54:13.79 |
+13:02:32.6 |
HIP 8827 |
24.09 |
| 2026-04-12 12:00 |
01:55:02.25 |
+13:07:10.9 |
HIP 8973 |
34.01 |
| 2026-04-13 00:00 |
01:55:50.79 |
+13:11:49.0 |
HIP 9074 |
28.32 |
| 2026-04-13 12:00 |
01:56:39.41 |
+13:16:26.8 |
HIP 9074 |
20.06 |
| 2026-04-14 00:00 |
01:57:28.10 |
+13:21:04.5 |
HIP 9074 |
18.05 |
| 2026-04-14 12:00 |
01:58:16.88 |
+13:25:41.8 |
HIP 9180 |
11.34 |
| 2026-04-15 00:00 |
01:59:05.73 |
+13:30:19.0 |
HIP 9180 |
15.26 |
| 2026-04-15 12:00 |
01:59:54.66 |
+13:34:55.9 |
HIP 9405 |
17.75 |
| 2026-04-16 00:00 |
02:00:43.66 |
+13:39:32.5 |
HIP 9405 |
16.52 |