메타데이터
| 항목 |
값 |
| Designation |
256P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2013-03-17T12:37:58.005120Z |
| Orbit solution date (soln_date, UTC) |
2024-05-30T01:12:33Z |
| Obs used |
270 |
| NEO |
- |
| M1 |
12.000 |
| K1 |
13.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-02-12.0000000 |
| e |
0.41935612 |
| q (au) |
2.689114 |
| a (au) |
4.631263 |
| i (deg) |
27.631658 |
| Ω (om, deg) |
81.436538 |
| ω (w, deg) |
124.120383 |
| M (ma, deg) |
68.874689 |
밝기
산란 + 전체 선형
$$
M_a = (10.702 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.702 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| 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) |
| 2026-06-01 00:00 |
01:02:05.24 |
-21:49:59.5 |
HIP 4835 |
13.52 |
| 2026-06-01 12:00 |
01:02:21.68 |
-21:50:04.3 |
HIP 4855 |
13.51 |
| 2026-06-02 00:00 |
01:02:38.02 |
-21:50:10.2 |
HIP 4855 |
13.76 |
| 2026-06-02 12:00 |
01:02:54.26 |
-21:50:17.3 |
HIP 4855 |
15.00 |
| 2026-06-03 00:00 |
01:03:10.40 |
-21:50:25.7 |
HIP 4855 |
17.01 |
| 2026-06-03 12:00 |
01:03:26.45 |
-21:50:35.3 |
HIP 4855 |
19.54 |
| 2026-06-04 00:00 |
01:03:42.39 |
-21:50:46.1 |
HIP 4855 |
22.40 |
| 2026-06-04 12:00 |
01:03:58.24 |
-21:50:58.0 |
HIP 4855 |
25.47 |
| 2026-06-05 00:00 |
01:04:13.99 |
-21:51:11.2 |
HIP 5143 |
28.38 |
| 2026-06-05 12:00 |
01:04:29.64 |
-21:51:25.7 |
HIP 5143 |
25.74 |
| 2026-06-06 00:00 |
01:04:45.18 |
-21:51:41.3 |
HIP 5143 |
23.41 |
| 2026-06-06 12:00 |
01:05:00.62 |
-21:51:58.2 |
HIP 5143 |
21.47 |
| 2026-06-07 00:00 |
01:05:15.96 |
-21:52:16.3 |
HIP 5143 |
20.03 |
| 2026-06-07 12:00 |
01:05:31.20 |
-21:52:35.6 |
HIP 5201 |
17.78 |
| 2026-06-08 00:00 |
01:05:46.33 |
-21:52:56.1 |
HIP 5201 |
14.98 |
| 2026-06-08 12:00 |
01:06:01.35 |
-21:53:17.9 |
HIP 5201 |
12.54 |
| 2026-06-09 00:00 |
01:06:16.27 |
-21:53:40.9 |
HIP 5201 |
10.69 |
| 2026-06-09 12:00 |
01:06:31.09 |
-21:54:05.1 |
HIP 5201 |
9.76 |
| 2026-06-10 00:00 |
01:06:45.79 |
-21:54:30.6 |
HIP 5201 |
9.98 |
| 2026-06-10 12:00 |
01:07:00.38 |
-21:54:57.2 |
HIP 5201 |
11.26 |
| 2026-06-11 00:00 |
01:07:14.87 |
-21:55:25.2 |
HIP 5201 |
13.28 |
| 2026-06-11 12:00 |
01:07:29.24 |
-21:55:54.3 |
HIP 5201 |
15.75 |
| 2026-06-12 00:00 |
01:07:43.51 |
-21:56:24.7 |
HIP 5201 |
18.47 |
| 2026-06-12 12:00 |
01:07:57.66 |
-21:56:56.4 |
HIP 5323 |
20.03 |
| 2026-06-13 00:00 |
01:08:11.70 |
-21:57:29.2 |
HIP 5323 |
20.58 |
| 2026-06-13 12:00 |
01:08:25.62 |
-21:58:03.4 |
HIP 5323 |
21.65 |
| 2026-06-14 00:00 |
01:08:39.43 |
-21:58:38.7 |
HIP 5323 |
23.14 |
| 2026-06-14 12:00 |
01:08:53.13 |
-21:59:15.3 |
HIP 5446 |
24.69 |
| 2026-06-15 00:00 |
01:09:06.70 |
-21:59:53.1 |
HIP 5446 |
22.78 |
| 2026-06-15 12:00 |
01:09:20.16 |
-22:00:32.2 |
HIP 5446 |
21.18 |
| 2026-06-16 00:00 |
01:09:33.50 |
-22:01:12.5 |
HIP 5446 |
19.94 |
| 2026-06-16 12:00 |
01:09:46.73 |
-22:01:54.0 |
HIP 5446 |
19.12 |
| 2026-06-17 00:00 |
01:09:59.83 |
-22:02:36.8 |
HIP 5446 |
18.77 |
| 2026-06-17 12:00 |
01:10:12.81 |
-22:03:20.8 |
HIP 5446 |
18.91 |
| 2026-06-18 00:00 |
01:10:25.68 |
-22:04:06.0 |
HIP 5446 |
19.51 |
| 2026-06-18 12:00 |
01:10:38.42 |
-22:04:52.5 |
HIP 5601 |
19.91 |
| 2026-06-19 00:00 |
01:10:51.03 |
-22:05:40.2 |
HIP 5601 |
18.00 |
| 2026-06-19 12:00 |
01:11:03.53 |
-22:06:29.1 |
HIP 5601 |
16.48 |
| 2026-06-20 00:00 |
01:11:15.90 |
-22:07:19.2 |
HIP 5601 |
15.43 |
| 2026-06-20 12:00 |
01:11:28.15 |
-22:08:10.5 |
HIP 5601 |
14.94 |
| 2026-06-21 00:00 |
01:11:40.27 |
-22:09:03.1 |
HIP 5601 |
15.06 |
| 2026-06-21 12:00 |
01:11:52.26 |
-22:09:56.9 |
HIP 5601 |
15.76 |
| 2026-06-22 00:00 |
01:12:04.13 |
-22:10:51.8 |
HIP 5601 |
16.95 |