194P/LINEAR
메타데이터
| 항목 |
값 |
| Designation |
194P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2008-02-26T01:27:24.048000Z |
| Orbit solution date (soln_date, UTC) |
2024-05-07T15:48:58Z |
| Obs used |
152 |
| NEO |
- |
| M1 |
17.800 |
| K1 |
7.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2011-10-05.0000000 |
| e |
0.57432797 |
| q (au) |
1.705149 |
| a (au) |
4.005781 |
| i (deg) |
11.120766 |
| Ω (om, deg) |
352.049138 |
| ω (w, deg) |
130.540130 |
| M (ma, deg) |
161.897093 |
밝기
산란 + 전체 선형
$$
M_a = (18.208 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
18.208 |
| n |
2.000 |
| gf |
0.999 |
| gb |
-1.000 |
| k |
0.999 |
| 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) |
| 2026-02-03 00:00 |
17:55:19.92 |
-33:54:23.3 |
HIP 87686 |
9.14 |
| 2026-02-03 12:00 |
17:55:45.21 |
-33:55:04.1 |
HIP 87686 |
14.08 |
| 2026-02-04 00:00 |
17:56:10.39 |
-33:55:45.0 |
HIP 87791 |
18.17 |
| 2026-02-04 12:00 |
17:56:35.46 |
-33:56:26.0 |
HIP 87885 |
19.94 |
| 2026-02-05 00:00 |
17:57:00.41 |
-33:57:07.0 |
HIP 87885 |
18.04 |
| 2026-02-05 12:00 |
17:57:25.24 |
-33:57:48.1 |
HIP 87885 |
17.53 |
| 2026-02-06 00:00 |
17:57:49.96 |
-33:58:29.3 |
HIP 87885 |
18.51 |
| 2026-02-06 12:00 |
17:58:14.56 |
-33:59:10.5 |
HIP 87885 |
20.75 |
| 2026-02-07 00:00 |
17:58:39.04 |
-33:59:51.9 |
HIP 87885 |
23.88 |
| 2026-02-07 12:00 |
17:59:03.40 |
-34:00:33.3 |
HIP 88182 |
19.36 |
| 2026-02-08 00:00 |
17:59:27.64 |
-34:01:14.9 |
HIP 88182 |
14.90 |
| 2026-02-08 12:00 |
17:59:51.76 |
-34:01:56.5 |
HIP 88182 |
11.01 |
| 2026-02-09 00:00 |
18:00:15.76 |
-34:02:38.2 |
HIP 88182 |
8.47 |
| 2026-02-09 12:00 |
18:00:39.63 |
-34:03:20.0 |
HIP 88182 |
8.52 |
| 2026-02-10 00:00 |
18:01:03.38 |
-34:04:02.0 |
HIP 88182 |
11.10 |
| 2026-02-10 12:00 |
18:01:27.00 |
-34:04:44.0 |
HIP 88299 |
6.78 |
| 2026-02-11 00:00 |
18:01:50.49 |
-34:05:26.1 |
HIP 88299 |
2.91 |
| 2026-02-11 12:00 |
18:02:13.86 |
-34:06:08.4 |
HIP 88299 |
4.35 |
| 2026-02-12 00:00 |
18:02:37.09 |
-34:06:50.7 |
HIP 88299 |
8.76 |
| 2026-02-12 12:00 |
18:03:00.20 |
-34:07:33.2 |
HIP 88299 |
13.45 |
| 2026-02-13 00:00 |
18:03:23.18 |
-34:08:15.8 |
HIP 88492 |
10.79 |
| 2026-02-13 12:00 |
18:03:46.02 |
-34:08:58.6 |
HIP 88492 |
7.52 |
| 2026-02-14 00:00 |
18:04:08.73 |
-34:09:41.4 |
HIP 88492 |
6.50 |
| 2026-02-14 12:00 |
18:04:31.30 |
-34:10:24.4 |
HIP 88492 |
8.55 |
| 2026-02-15 00:00 |
18:04:53.74 |
-34:11:07.5 |
HIP 88492 |
12.17 |
| 2026-02-15 12:00 |
18:05:16.03 |
-34:11:50.8 |
HIP 88691 |
15.11 |
| 2026-02-16 00:00 |
18:05:38.20 |
-34:12:34.2 |
HIP 88691 |
10.83 |
| 2026-02-16 12:00 |
18:06:00.22 |
-34:13:17.7 |
HIP 88691 |
7.03 |
| 2026-02-17 00:00 |
18:06:22.10 |
-34:14:01.4 |
HIP 88691 |
4.89 |
| 2026-02-17 12:00 |
18:06:43.84 |
-34:14:45.3 |
HIP 88691 |
6.33 |
| 2026-02-18 00:00 |
18:07:05.44 |
-34:15:29.2 |
HIP 88691 |
9.85 |
| 2026-02-18 12:00 |
18:07:26.89 |
-34:16:13.4 |
HIP 88800 |
8.55 |
| 2026-02-19 00:00 |
18:07:48.20 |
-34:16:57.7 |
HIP 88800 |
9.22 |
| 2026-02-19 12:00 |
18:08:09.36 |
-34:17:42.1 |
HIP 88800 |
11.67 |
| 2026-02-20 00:00 |
18:08:30.37 |
-34:18:26.7 |
HIP 88800 |
15.05 |
| 2026-02-20 12:00 |
18:08:51.24 |
-34:19:11.5 |
HIP 88971 |
17.67 |
| 2026-02-21 00:00 |
18:09:11.95 |
-34:19:56.4 |
HIP 88971 |
16.46 |
| 2026-02-21 12:00 |
18:09:32.52 |
-34:20:41.6 |
HIP 88971 |
16.37 |
| 2026-02-22 00:00 |
18:09:52.93 |
-34:21:26.8 |
HIP 88971 |
17.38 |
| 2026-02-22 12:00 |
18:10:13.20 |
-34:22:12.3 |
HIP 88971 |
19.30 |
| 2026-02-23 00:00 |
18:10:33.31 |
-34:22:57.9 |
HIP 88971 |
21.87 |
| 2026-02-23 12:00 |
18:10:53.26 |
-34:23:43.7 |
HIP 89189 |
24.74 |
| 2026-02-24 00:00 |
18:11:13.06 |
-34:24:29.7 |
HIP 89189 |
23.15 |