메타데이터
| 항목 |
값 |
| Designation |
C/2007 D3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2007-05-27T16:50:25.203840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:04Z |
| Obs used |
177 |
| NEO |
- |
| M1 |
8.800 |
| K1 |
8.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2007-11-28.0000000 |
| e |
0.99201293 |
| q (au) |
5.208969 |
| a (au) |
652.174844 |
| i (deg) |
45.920258 |
| Ω (om, deg) |
148.429528 |
| ω (w, deg) |
309.094137 |
| M (ma, deg) |
0.010906 |
밝기
산란 + 전체 선형
$$
M_a = (8.625 + 3.167\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.625 |
| n |
3.167 |
| gf |
1.000 |
| gb |
-0.948 |
| k |
1.000 |
| δ90 |
10.000 |
| 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) |
| 2026-03-26 00:00 |
16:06:10.27 |
+26:38:00.4 |
HIP 78787 |
17.82 |
| 2026-03-26 12:00 |
16:06:08.67 |
+26:38:35.3 |
HIP 78787 |
17.21 |
| 2026-03-27 00:00 |
16:06:07.04 |
+26:39:10.0 |
HIP 78787 |
16.59 |
| 2026-03-27 12:00 |
16:06:05.39 |
+26:39:44.7 |
HIP 78787 |
15.98 |
| 2026-03-28 00:00 |
16:06:03.70 |
+26:40:19.2 |
HIP 78787 |
15.36 |
| 2026-03-28 12:00 |
16:06:01.99 |
+26:40:53.6 |
HIP 78787 |
14.75 |
| 2026-03-29 00:00 |
16:06:00.25 |
+26:41:27.9 |
HIP 78787 |
14.15 |
| 2026-03-29 12:00 |
16:05:58.49 |
+26:42:02.0 |
HIP 78787 |
13.54 |
| 2026-03-30 00:00 |
16:05:56.69 |
+26:42:36.0 |
HIP 78787 |
12.94 |
| 2026-03-30 12:00 |
16:05:54.88 |
+26:43:09.8 |
HIP 78787 |
12.35 |
| 2026-03-31 00:00 |
16:05:53.03 |
+26:43:43.5 |
HIP 78787 |
11.76 |
| 2026-03-31 12:00 |
16:05:51.16 |
+26:44:17.1 |
HIP 78787 |
11.18 |
| 2026-04-01 00:00 |
16:05:49.26 |
+26:44:50.5 |
HIP 78787 |
10.61 |
| 2026-04-01 12:00 |
16:05:47.33 |
+26:45:23.8 |
HIP 78787 |
10.05 |
| 2026-04-02 00:00 |
16:05:45.38 |
+26:45:56.9 |
HIP 78787 |
9.50 |
| 2026-04-02 12:00 |
16:05:43.41 |
+26:46:29.8 |
HIP 78787 |
8.97 |
| 2026-04-03 00:00 |
16:05:41.40 |
+26:47:02.6 |
HIP 78787 |
8.46 |
| 2026-04-03 12:00 |
16:05:39.38 |
+26:47:35.2 |
HIP 78787 |
7.98 |
| 2026-04-04 00:00 |
16:05:37.32 |
+26:48:07.7 |
HIP 78787 |
7.53 |
| 2026-04-04 12:00 |
16:05:35.25 |
+26:48:40.0 |
HIP 78787 |
7.11 |
| 2026-04-05 00:00 |
16:05:33.14 |
+26:49:12.2 |
HIP 78787 |
6.73 |
| 2026-04-05 12:00 |
16:05:31.02 |
+26:49:44.1 |
HIP 78787 |
6.41 |
| 2026-04-06 00:00 |
16:05:28.86 |
+26:50:15.9 |
HIP 78787 |
6.14 |
| 2026-04-06 12:00 |
16:05:26.69 |
+26:50:47.5 |
HIP 78787 |
5.94 |
| 2026-04-07 00:00 |
16:05:24.49 |
+26:51:19.0 |
HIP 78787 |
5.82 |
| 2026-04-07 12:00 |
16:05:22.26 |
+26:51:50.2 |
HIP 78787 |
5.79 |
| 2026-04-08 00:00 |
16:05:20.01 |
+26:52:21.3 |
HIP 78787 |
5.83 |
| 2026-04-08 12:00 |
16:05:17.74 |
+26:52:52.2 |
HIP 78787 |
5.96 |
| 2026-04-09 00:00 |
16:05:15.45 |
+26:53:22.9 |
HIP 78787 |
6.16 |
| 2026-04-09 12:00 |
16:05:13.13 |
+26:53:53.4 |
HIP 78787 |
6.44 |
| 2026-04-10 00:00 |
16:05:10.78 |
+26:54:23.7 |
HIP 78787 |
6.77 |
| 2026-04-10 12:00 |
16:05:08.42 |
+26:54:53.9 |
HIP 78787 |
7.17 |
| 2026-04-11 00:00 |
16:05:06.03 |
+26:55:23.8 |
HIP 78787 |
7.60 |
| 2026-04-11 12:00 |
16:05:03.62 |
+26:55:53.5 |
HIP 78787 |
8.08 |
| 2026-04-12 00:00 |
16:05:01.19 |
+26:56:23.0 |
HIP 78787 |
8.59 |
| 2026-04-12 12:00 |
16:04:58.73 |
+26:56:52.3 |
HIP 78787 |
9.13 |
| 2026-04-13 00:00 |
16:04:56.26 |
+26:57:21.4 |
HIP 78787 |
9.69 |
| 2026-04-13 12:00 |
16:04:53.76 |
+26:57:50.3 |
HIP 78787 |
10.27 |
| 2026-04-14 00:00 |
16:04:51.24 |
+26:58:19.0 |
HIP 78787 |
10.86 |
| 2026-04-14 12:00 |
16:04:48.70 |
+26:58:47.5 |
HIP 78787 |
11.47 |
| 2026-04-15 00:00 |
16:04:46.14 |
+26:59:15.7 |
HIP 78787 |
12.10 |
| 2026-04-15 12:00 |
16:04:43.56 |
+26:59:43.8 |
HIP 78787 |
12.73 |
| 2026-04-16 00:00 |
16:04:40.95 |
+27:00:11.6 |
HIP 78787 |
13.37 |