294P/LINEAR
메타데이터
| 항목 |
값 |
| Designation |
294P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2014-03-02T22:57:19.949760Z |
| Orbit solution date (soln_date, UTC) |
2025-04-24T09:42:31Z |
| Obs used |
269 |
| NEO |
Yes |
| M1 |
17.900 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2012-07-03.0000000 |
| e |
0.59553149 |
| q (au) |
1.294963 |
| a (au) |
3.201640 |
| i (deg) |
18.216347 |
| Ω (om, deg) |
312.897989 |
| ω (w, deg) |
235.321908 |
| M (ma, deg) |
255.403331 |
밝기
산란 + 전체 선형
$$
M_a = (16.285 + 2.939\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.285 |
| n |
2.939 |
| gf |
1.000 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
19:52:00.31 |
-26:03:00.2 |
HIP 97828 |
12.87 |
| 2026-02-03 12:00 |
19:53:00.97 |
-25:59:01.2 |
HIP 97828 |
12.09 |
| 2026-02-04 00:00 |
19:54:01.39 |
-25:55:01.4 |
HIP 98021 |
16.74 |
| 2026-02-04 12:00 |
19:55:01.58 |
-25:51:01.0 |
HIP 98021 |
3.17 |
| 2026-02-05 00:00 |
19:56:01.55 |
-25:47:00.0 |
HIP 98021 |
11.74 |
| 2026-02-05 12:00 |
19:57:01.28 |
-25:42:58.3 |
HIP 98021 |
25.69 |
| 2026-02-06 00:00 |
19:58:00.78 |
-25:38:55.9 |
HIP 98353 |
35.18 |
| 2026-02-06 12:00 |
19:59:00.06 |
-25:34:53.0 |
HIP 98479 |
26.89 |
| 2026-02-07 00:00 |
19:59:59.11 |
-25:30:49.4 |
HIP 98479 |
23.74 |
| 2026-02-07 12:00 |
20:00:57.93 |
-25:26:45.3 |
HIP 98479 |
28.12 |
| 2026-02-08 00:00 |
20:01:56.52 |
-25:22:40.5 |
HIP 98588 |
32.42 |
| 2026-02-08 12:00 |
20:02:54.88 |
-25:18:35.2 |
HIP 98588 |
33.59 |
| 2026-02-09 00:00 |
20:03:53.02 |
-25:14:29.3 |
HIP 98931 |
21.38 |
| 2026-02-09 12:00 |
20:04:50.94 |
-25:10:22.9 |
HIP 98931 |
8.66 |
| 2026-02-10 00:00 |
20:05:48.62 |
-25:06:16.0 |
HIP 98931 |
8.31 |
| 2026-02-10 12:00 |
20:06:46.08 |
-25:02:08.6 |
HIP 99098 |
16.40 |
| 2026-02-11 00:00 |
20:07:43.32 |
-24:58:00.6 |
HIP 99098 |
14.24 |
| 2026-02-11 12:00 |
20:08:40.32 |
-24:53:52.2 |
HIP 99098 |
22.48 |
| 2026-02-12 00:00 |
20:09:37.11 |
-24:49:43.3 |
HIP 99365 |
28.13 |
| 2026-02-12 12:00 |
20:10:33.67 |
-24:45:34.0 |
HIP 99603 |
30.45 |
| 2026-02-13 00:00 |
20:11:30.00 |
-24:41:24.1 |
HIP 99603 |
18.84 |
| 2026-02-13 12:00 |
20:12:26.12 |
-24:37:13.9 |
HIP 99603 |
12.04 |
| 2026-02-14 00:00 |
20:13:22.00 |
-24:33:03.2 |
HIP 99603 |
17.13 |
| 2026-02-14 12:00 |
20:14:17.67 |
-24:28:52.2 |
HIP 99817 |
12.26 |
| 2026-02-15 00:00 |
20:15:13.11 |
-24:24:40.7 |
HIP 99817 |
2.21 |
| 2026-02-15 12:00 |
20:16:08.32 |
-24:20:28.9 |
HIP 99817 |
14.55 |
| 2026-02-16 00:00 |
20:17:03.32 |
-24:16:16.6 |
HIP 100068 |
14.47 |
| 2026-02-16 12:00 |
20:17:58.09 |
-24:12:04.1 |
HIP 100068 |
4.52 |
| 2026-02-17 00:00 |
20:18:52.63 |
-24:07:51.2 |
HIP 100068 |
13.33 |
| 2026-02-17 12:00 |
20:19:46.96 |
-24:03:37.9 |
HIP 100148 |
15.58 |
| 2026-02-18 00:00 |
20:20:41.06 |
-23:59:24.4 |
HIP 100148 |
24.99 |
| 2026-02-18 12:00 |
20:21:34.94 |
-23:55:10.5 |
HIP 100386 |
26.64 |
| 2026-02-19 00:00 |
20:22:28.60 |
-23:50:56.3 |
HIP 100386 |
26.10 |
| 2026-02-19 12:00 |
20:23:22.03 |
-23:46:41.9 |
HIP 100633 |
22.43 |
| 2026-02-20 00:00 |
20:24:15.24 |
-23:42:27.2 |
HIP 100633 |
13.94 |
| 2026-02-20 12:00 |
20:25:08.23 |
-23:38:12.2 |
HIP 100633 |
14.75 |
| 2026-02-21 00:00 |
20:26:01.00 |
-23:33:57.0 |
HIP 100633 |
23.87 |
| 2026-02-21 12:00 |
20:26:53.55 |
-23:29:41.6 |
HIP 100718 |
30.34 |
| 2026-02-22 00:00 |
20:27:45.87 |
-23:25:25.9 |
HIP 100958 |
25.13 |
| 2026-02-22 12:00 |
20:28:37.98 |
-23:21:10.1 |
HIP 100958 |
21.39 |
| 2026-02-23 00:00 |
20:29:29.86 |
-23:16:54.0 |
HIP 100958 |
24.58 |
| 2026-02-23 12:00 |
20:30:21.53 |
-23:12:37.7 |
HIP 101100 |
24.13 |
| 2026-02-24 00:00 |
20:31:12.97 |
-23:08:21.3 |
HIP 101306 |
27.09 |