메타데이터
| 항목 |
값 |
| Designation |
277P/LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2013-06-04T19:48:10.031040Z |
| Orbit solution date (soln_date, UTC) |
2021-05-02T23:43:01Z |
| Obs used |
828 |
| NEO |
- |
| M1 |
11.800 |
| K1 |
19.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-09-16.0000000 |
| e |
0.50379346 |
| q (au) |
1.914197 |
| a (au) |
3.857662 |
| i (deg) |
16.748332 |
| Ω (om, deg) |
276.352145 |
| ω (w, deg) |
152.176271 |
| M (ma, deg) |
155.991309 |
밝기
산란 + 전체 선형
$$
M_a = (12.075 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.075 |
| 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) |
| 2026-07-29 00:00 |
18:40:57.45 |
-19:52:28.6 |
HIP 91527 |
19.07 |
| 2026-07-29 12:00 |
18:40:39.15 |
-19:52:10.7 |
HIP 91527 |
16.14 |
| 2026-07-30 00:00 |
18:40:20.99 |
-19:51:52.9 |
HIP 91527 |
13.95 |
| 2026-07-30 12:00 |
18:40:02.98 |
-19:51:35.0 |
HIP 91527 |
12.88 |
| 2026-07-31 00:00 |
18:39:45.11 |
-19:51:17.1 |
HIP 91527 |
13.14 |
| 2026-07-31 12:00 |
18:39:27.38 |
-19:50:59.2 |
HIP 91527 |
14.65 |
| 2026-08-01 00:00 |
18:39:09.80 |
-19:50:41.3 |
HIP 91527 |
17.05 |
| 2026-08-01 12:00 |
18:38:52.38 |
-19:50:23.3 |
HIP 91527 |
20.01 |
| 2026-08-02 00:00 |
18:38:35.11 |
-19:50:05.3 |
HIP 91344 |
17.26 |
| 2026-08-02 12:00 |
18:38:17.99 |
-19:49:47.3 |
HIP 91344 |
14.97 |
| 2026-08-03 00:00 |
18:38:01.04 |
-19:49:29.3 |
HIP 91344 |
13.55 |
| 2026-08-03 12:00 |
18:37:44.24 |
-19:49:11.2 |
HIP 91344 |
13.22 |
| 2026-08-04 00:00 |
18:37:27.61 |
-19:48:53.2 |
HIP 91344 |
14.03 |
| 2026-08-04 12:00 |
18:37:11.14 |
-19:48:35.1 |
HIP 91344 |
15.78 |
| 2026-08-05 00:00 |
18:36:54.84 |
-19:48:17.0 |
HIP 91344 |
18.18 |
| 2026-08-05 12:00 |
18:36:38.71 |
-19:47:58.9 |
HIP 91344 |
20.97 |
| 2026-08-06 00:00 |
18:36:22.75 |
-19:47:40.8 |
HIP 91344 |
24.02 |
| 2026-08-06 12:00 |
18:36:06.97 |
-19:47:22.7 |
HIP 91051 |
23.92 |
| 2026-08-07 00:00 |
18:35:51.36 |
-19:47:04.6 |
HIP 91051 |
20.24 |
| 2026-08-07 12:00 |
18:35:35.94 |
-19:46:46.5 |
HIP 91051 |
16.62 |
| 2026-08-08 00:00 |
18:35:20.69 |
-19:46:28.3 |
HIP 91051 |
13.04 |
| 2026-08-08 12:00 |
18:35:05.63 |
-19:46:10.2 |
HIP 91051 |
9.53 |
| 2026-08-09 00:00 |
18:34:50.75 |
-19:45:52.1 |
HIP 91051 |
6.11 |
| 2026-08-09 12:00 |
18:34:36.06 |
-19:45:33.9 |
HIP 91051 |
2.95 |
| 2026-08-10 00:00 |
18:34:21.56 |
-19:45:15.8 |
HIP 91051 |
2.02 |
| 2026-08-10 12:00 |
18:34:07.26 |
-19:44:57.6 |
HIP 91051 |
4.75 |
| 2026-08-11 00:00 |
18:33:53.14 |
-19:44:39.4 |
HIP 91051 |
7.95 |
| 2026-08-11 12:00 |
18:33:39.23 |
-19:44:21.3 |
HIP 91051 |
11.18 |
| 2026-08-12 00:00 |
18:33:25.51 |
-19:44:03.1 |
HIP 91051 |
14.39 |
| 2026-08-12 12:00 |
18:33:11.98 |
-19:43:45.0 |
HIP 91051 |
17.57 |
| 2026-08-13 00:00 |
18:32:58.67 |
-19:43:26.8 |
HIP 91051 |
20.71 |
| 2026-08-13 12:00 |
18:32:45.55 |
-19:43:08.6 |
HIP 91051 |
23.80 |
| 2026-08-14 00:00 |
18:32:32.64 |
-19:42:50.5 |
HIP 91051 |
26.85 |
| 2026-08-14 12:00 |
18:32:19.93 |
-19:42:32.3 |
HIP 91051 |
29.85 |
| 2026-08-15 00:00 |
18:32:07.44 |
-19:42:14.1 |
HIP 90679 |
28.12 |
| 2026-08-15 12:00 |
18:31:55.15 |
-19:41:56.0 |
HIP 90679 |
25.22 |
| 2026-08-16 00:00 |
18:31:43.07 |
-19:41:37.8 |
HIP 90679 |
22.37 |
| 2026-08-16 12:00 |
18:31:31.21 |
-19:41:19.6 |
HIP 90679 |
19.58 |
| 2026-08-17 00:00 |
18:31:19.56 |
-19:41:01.5 |
HIP 90679 |
16.84 |
| 2026-08-17 12:00 |
18:31:08.12 |
-19:40:43.3 |
HIP 90679 |
14.15 |
| 2026-08-18 00:00 |
18:30:56.91 |
-19:40:25.1 |
HIP 90679 |
11.53 |
| 2026-08-18 12:00 |
18:30:45.90 |
-19:40:07.0 |
HIP 90679 |
8.99 |
| 2026-08-19 00:00 |
18:30:35.12 |
-19:39:48.8 |
HIP 90679 |
6.54 |