C/2014 M2 (Christensen)
메타데이터
| 항목 |
값 |
| Designation |
C/2014 M2 (Christensen) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-07-12T15:05:12.776640Z |
| Orbit solution date (soln_date, UTC) |
2022-06-28T07:55:51Z |
| Obs used |
57 |
| NEO |
- |
| M1 |
6.900 |
| K1 |
11.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-07-19.0000000 |
| e |
0.99274520 |
| q (au) |
6.909654 |
| a (au) |
952.425613 |
| i (deg) |
32.418761 |
| Ω (om, deg) |
245.346855 |
| ω (w, deg) |
40.275887 |
| M (ma, deg) |
0.000214 |
밝기
산란 + 전체 선형
$$
M_a = (13.645 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.645 |
| n |
2.000 |
| gf |
0.998 |
| gb |
-0.585 |
| k |
0.800 |
| δ90 |
9.999 |
| 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) |
| 2026-02-03 00:00 |
02:18:29.84 |
+27:36:35.9 |
HIP 10682 |
31.63 |
| 2026-02-03 12:00 |
02:18:31.39 |
+27:36:19.0 |
HIP 10682 |
31.54 |
| 2026-02-04 00:00 |
02:18:32.98 |
+27:36:02.3 |
HIP 10682 |
31.45 |
| 2026-02-04 12:00 |
02:18:34.61 |
+27:35:45.9 |
HIP 10682 |
31.39 |
| 2026-02-05 00:00 |
02:18:36.29 |
+27:35:29.7 |
HIP 10682 |
31.33 |
| 2026-02-05 12:00 |
02:18:38.01 |
+27:35:13.8 |
HIP 10682 |
31.29 |
| 2026-02-06 00:00 |
02:18:39.78 |
+27:34:58.1 |
HIP 10682 |
31.27 |
| 2026-02-06 12:00 |
02:18:41.59 |
+27:34:42.7 |
HIP 10682 |
31.27 |
| 2026-02-07 00:00 |
02:18:43.45 |
+27:34:27.5 |
HIP 10682 |
31.28 |
| 2026-02-07 12:00 |
02:18:45.35 |
+27:34:12.5 |
HIP 10682 |
31.30 |
| 2026-02-08 00:00 |
02:18:47.29 |
+27:33:57.8 |
HIP 10942 |
31.21 |
| 2026-02-08 12:00 |
02:18:49.28 |
+27:33:43.3 |
HIP 10942 |
30.71 |
| 2026-02-09 00:00 |
02:18:51.32 |
+27:33:29.1 |
HIP 10942 |
30.20 |
| 2026-02-09 12:00 |
02:18:53.39 |
+27:33:15.2 |
HIP 10942 |
29.69 |
| 2026-02-10 00:00 |
02:18:55.51 |
+27:33:01.4 |
HIP 10942 |
29.17 |
| 2026-02-10 12:00 |
02:18:57.67 |
+27:32:48.0 |
HIP 10942 |
28.64 |
| 2026-02-11 00:00 |
02:18:59.88 |
+27:32:34.8 |
HIP 10942 |
28.10 |
| 2026-02-11 12:00 |
02:19:02.13 |
+27:32:21.8 |
HIP 10942 |
27.56 |
| 2026-02-12 00:00 |
02:19:04.42 |
+27:32:09.1 |
HIP 10942 |
27.01 |
| 2026-02-12 12:00 |
02:19:06.76 |
+27:31:56.6 |
HIP 10942 |
26.45 |
| 2026-02-13 00:00 |
02:19:09.14 |
+27:31:44.4 |
HIP 10942 |
25.88 |
| 2026-02-13 12:00 |
02:19:11.56 |
+27:31:32.5 |
HIP 10942 |
25.31 |
| 2026-02-14 00:00 |
02:19:14.02 |
+27:31:20.7 |
HIP 10942 |
24.73 |
| 2026-02-14 12:00 |
02:19:16.52 |
+27:31:09.3 |
HIP 10942 |
24.15 |
| 2026-02-15 00:00 |
02:19:19.07 |
+27:30:58.1 |
HIP 10942 |
23.56 |
| 2026-02-15 12:00 |
02:19:21.66 |
+27:30:47.1 |
HIP 10942 |
22.96 |
| 2026-02-16 00:00 |
02:19:24.29 |
+27:30:36.5 |
HIP 10942 |
22.35 |
| 2026-02-16 12:00 |
02:19:26.96 |
+27:30:26.0 |
HIP 10942 |
21.74 |
| 2026-02-17 00:00 |
02:19:29.67 |
+27:30:15.8 |
HIP 10942 |
21.12 |
| 2026-02-17 12:00 |
02:19:32.43 |
+27:30:05.9 |
HIP 10942 |
20.50 |
| 2026-02-18 00:00 |
02:19:35.22 |
+27:29:56.2 |
HIP 10942 |
19.86 |
| 2026-02-18 12:00 |
02:19:38.06 |
+27:29:46.8 |
HIP 10942 |
19.23 |
| 2026-02-19 00:00 |
02:19:40.93 |
+27:29:37.6 |
HIP 10942 |
18.59 |
| 2026-02-19 12:00 |
02:19:43.85 |
+27:29:28.7 |
HIP 10942 |
17.94 |
| 2026-02-20 00:00 |
02:19:46.81 |
+27:29:20.0 |
HIP 10942 |
17.29 |
| 2026-02-20 12:00 |
02:19:49.80 |
+27:29:11.6 |
HIP 10942 |
16.63 |
| 2026-02-21 00:00 |
02:19:52.84 |
+27:29:03.5 |
HIP 10942 |
15.97 |
| 2026-02-21 12:00 |
02:19:55.91 |
+27:28:55.6 |
HIP 10942 |
15.31 |
| 2026-02-22 00:00 |
02:19:59.03 |
+27:28:47.9 |
HIP 10942 |
14.64 |
| 2026-02-22 12:00 |
02:20:02.18 |
+27:28:40.5 |
HIP 10942 |
13.97 |
| 2026-02-23 00:00 |
02:20:05.37 |
+27:28:33.4 |
HIP 10942 |
13.31 |
| 2026-02-23 12:00 |
02:20:08.60 |
+27:28:26.5 |
HIP 10942 |
12.64 |
| 2026-02-24 00:00 |
02:20:11.87 |
+27:28:19.9 |
HIP 10942 |
11.97 |