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
$$
M_a = (14.179 + 5.199\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.179 |
| n |
5.199 |
| gf |
0.870 |
| gb |
-0.500 |
| k |
0.913 |
| δ90 |
1.531 |
| 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) |
| 2026-06-01 00:00 |
03:20:57.69 |
+20:09:31.5 |
HIP 15509 |
16.93 |
| 2026-06-01 12:00 |
03:21:53.10 |
+20:13:13.9 |
HIP 15597 |
22.57 |
| 2026-06-02 00:00 |
03:22:48.57 |
+20:16:55.4 |
HIP 15737 |
27.61 |
| 2026-06-02 12:00 |
03:23:44.10 |
+20:20:36.1 |
HIP 15838 |
26.47 |
| 2026-06-03 00:00 |
03:24:39.68 |
+20:24:15.9 |
HIP 15996 |
21.80 |
| 2026-06-03 12:00 |
03:25:35.33 |
+20:27:54.7 |
HIP 15996 |
14.72 |
| 2026-06-04 00:00 |
03:26:31.04 |
+20:31:32.7 |
HIP 15996 |
18.02 |
| 2026-06-04 12:00 |
03:27:26.81 |
+20:35:09.8 |
HIP 16143 |
10.91 |
| 2026-06-05 00:00 |
03:28:22.63 |
+20:38:45.9 |
HIP 16205 |
6.12 |
| 2026-06-05 12:00 |
03:29:18.52 |
+20:42:21.1 |
HIP 16205 |
8.63 |
| 2026-06-06 00:00 |
03:30:14.46 |
+20:45:55.4 |
HIP 16405 |
14.27 |
| 2026-06-06 12:00 |
03:31:10.47 |
+20:49:28.8 |
HIP 16405 |
3.57 |
| 2026-06-07 00:00 |
03:32:06.53 |
+20:53:01.2 |
HIP 16405 |
13.78 |
| 2026-06-07 12:00 |
03:33:02.65 |
+20:56:32.7 |
HIP 16618 |
11.83 |
| 2026-06-08 00:00 |
03:33:58.83 |
+21:00:03.2 |
HIP 16618 |
2.49 |
| 2026-06-08 12:00 |
03:34:55.06 |
+21:03:32.8 |
HIP 16703 |
2.55 |
| 2026-06-09 00:00 |
03:35:51.35 |
+21:07:01.4 |
HIP 16703 |
13.92 |
| 2026-06-09 12:00 |
03:36:47.70 |
+21:10:29.0 |
HIP 16908 |
14.94 |
| 2026-06-10 00:00 |
03:37:44.11 |
+21:13:55.7 |
HIP 16908 |
7.00 |
| 2026-06-10 12:00 |
03:38:40.57 |
+21:17:21.4 |
HIP 16908 |
15.64 |
| 2026-06-11 00:00 |
03:39:37.08 |
+21:20:46.1 |
HIP 17148 |
10.96 |
| 2026-06-11 12:00 |
03:40:33.65 |
+21:24:09.8 |
HIP 17148 |
2.82 |
| 2026-06-12 00:00 |
03:41:30.28 |
+21:27:32.5 |
HIP 17316 |
12.53 |
| 2026-06-12 12:00 |
03:42:26.96 |
+21:30:54.2 |
HIP 17316 |
2.58 |
| 2026-06-13 00:00 |
03:43:23.69 |
+21:34:14.9 |
HIP 17316 |
15.06 |
| 2026-06-13 12:00 |
03:44:20.47 |
+21:37:34.6 |
HIP 17511 |
25.96 |
| 2026-06-14 00:00 |
03:45:17.31 |
+21:40:53.3 |
HIP 17511 |
21.49 |
| 2026-06-14 12:00 |
03:46:14.20 |
+21:44:10.9 |
HIP 17589 |
15.90 |
| 2026-06-15 00:00 |
03:47:11.13 |
+21:47:27.5 |
HIP 17589 |
19.79 |
| 2026-06-15 12:00 |
03:48:08.12 |
+21:50:43.0 |
HIP 17589 |
30.03 |
| 2026-06-16 00:00 |
03:49:05.16 |
+21:53:57.5 |
HIP 17921 |
23.71 |
| 2026-06-16 12:00 |
03:50:02.25 |
+21:57:11.0 |
HIP 17921 |
17.55 |
| 2026-06-17 00:00 |
03:50:59.38 |
+22:00:23.4 |
HIP 18059 |
8.76 |
| 2026-06-17 12:00 |
03:51:56.57 |
+22:03:34.7 |
HIP 18059 |
4.92 |
| 2026-06-18 00:00 |
03:52:53.80 |
+22:06:45.0 |
HIP 18059 |
18.53 |
| 2026-06-18 12:00 |
03:53:51.07 |
+22:09:54.2 |
HIP 18059 |
32.16 |
| 2026-06-19 00:00 |
03:54:48.40 |
+22:13:02.3 |
HIP 18459 |
30.12 |
| 2026-06-19 12:00 |
03:55:45.76 |
+22:16:09.3 |
HIP 18471 |
19.80 |
| 2026-06-20 00:00 |
03:56:43.18 |
+22:19:15.2 |
HIP 18471 |
9.66 |
| 2026-06-20 12:00 |
03:57:40.63 |
+22:22:20.1 |
HIP 18471 |
12.91 |
| 2026-06-21 00:00 |
03:58:38.14 |
+22:25:23.8 |
HIP 18471 |
24.74 |
| 2026-06-21 12:00 |
03:59:35.68 |
+22:28:26.5 |
HIP 18625 |
31.45 |
| 2026-06-22 00:00 |
04:00:33.27 |
+22:31:28.0 |
HIP 18833 |
24.36 |