메타데이터
| 항목 |
값 |
| Designation |
C/2005 H1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2004-10-28T12:40:07.613760Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:48Z |
| Obs used |
169 |
| NEO |
- |
| M1 |
12.900 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2005-05-28.0000000 |
| e |
0.89692366 |
| q (au) |
4.768597 |
| a (au) |
46.262766 |
| i (deg) |
81.512268 |
| Ω (om, deg) |
71.490714 |
| ω (w, deg) |
95.212944 |
| M (ma, deg) |
0.662384 |
밝기
산란 + 전체 선형
$$
M_a = (5.633 + 5.458\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.633 |
| n |
5.458 |
| gf |
0.982 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
9.963 |
| 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) |
| 2026-09-20 00:00 |
16:03:18.39 |
-83:08:17.7 |
HIP 77248 |
31.77 |
| 2026-09-20 12:00 |
16:03:29.77 |
-83:07:43.5 |
HIP 77248 |
31.98 |
| 2026-09-21 00:00 |
16:03:41.33 |
-83:07:09.6 |
HIP 77248 |
32.20 |
| 2026-09-21 12:00 |
16:03:53.08 |
-83:06:35.7 |
HIP 77248 |
32.44 |
| 2026-09-22 00:00 |
16:04:04.99 |
-83:06:02.1 |
HIP 77248 |
32.70 |
| 2026-09-22 12:00 |
16:04:17.08 |
-83:05:28.7 |
HIP 77248 |
32.98 |
| 2026-09-23 00:00 |
16:04:29.35 |
-83:04:55.5 |
HIP 77248 |
33.28 |
| 2026-09-23 12:00 |
16:04:41.79 |
-83:04:22.4 |
HIP 77248 |
33.59 |
| 2026-09-24 00:00 |
16:04:54.40 |
-83:03:49.6 |
HIP 77248 |
33.92 |
| 2026-09-24 12:00 |
16:05:07.17 |
-83:03:17.0 |
HIP 77248 |
34.27 |
| 2026-09-25 00:00 |
16:05:20.12 |
-83:02:44.5 |
HIP 77248 |
34.63 |
| 2026-09-25 12:00 |
16:05:33.23 |
-83:02:12.3 |
HIP 77248 |
35.01 |
| 2026-09-26 00:00 |
16:05:46.51 |
-83:01:40.3 |
HIP 77248 |
35.40 |
| 2026-09-26 12:00 |
16:05:59.95 |
-83:01:08.5 |
HIP 77248 |
35.81 |
| 2026-09-27 00:00 |
16:06:13.56 |
-83:00:36.8 |
HIP 77248 |
36.23 |
| 2026-09-27 12:00 |
16:06:27.33 |
-83:00:05.4 |
HIP 77248 |
36.66 |
| 2026-09-28 00:00 |
16:06:41.25 |
-82:59:34.2 |
HIP 77248 |
37.11 |
| 2026-09-28 12:00 |
16:06:55.34 |
-82:59:03.2 |
HIP 77248 |
37.57 |
| 2026-09-29 00:00 |
16:07:09.59 |
-82:58:32.5 |
HIP 77248 |
38.04 |
| 2026-09-29 12:00 |
16:07:23.99 |
-82:58:01.9 |
HIP 77248 |
38.52 |
| 2026-09-30 00:00 |
16:07:38.55 |
-82:57:31.6 |
HIP 77248 |
39.01 |
| 2026-09-30 12:00 |
16:07:53.26 |
-82:57:01.4 |
HIP 77248 |
39.51 |
| 2026-10-01 00:00 |
16:08:08.13 |
-82:56:31.5 |
HIP 80754 |
39.30 |
| 2026-10-01 12:00 |
16:08:23.15 |
-82:56:01.8 |
HIP 80754 |
38.82 |
| 2026-10-02 00:00 |
16:08:38.32 |
-82:55:32.3 |
HIP 80754 |
38.34 |
| 2026-10-02 12:00 |
16:08:53.65 |
-82:55:03.1 |
HIP 80754 |
37.86 |
| 2026-10-03 00:00 |
16:09:09.12 |
-82:54:34.1 |
HIP 80754 |
37.38 |
| 2026-10-03 12:00 |
16:09:24.74 |
-82:54:05.3 |
HIP 80754 |
36.90 |
| 2026-10-04 00:00 |
16:09:40.51 |
-82:53:36.7 |
HIP 80754 |
36.43 |
| 2026-10-04 12:00 |
16:09:56.43 |
-82:53:08.4 |
HIP 80754 |
35.95 |
| 2026-10-05 00:00 |
16:10:12.49 |
-82:52:40.2 |
HIP 80754 |
35.47 |
| 2026-10-05 12:00 |
16:10:28.69 |
-82:52:12.4 |
HIP 80754 |
35.00 |
| 2026-10-06 00:00 |
16:10:45.04 |
-82:51:44.7 |
HIP 80754 |
34.53 |
| 2026-10-06 12:00 |
16:11:01.53 |
-82:51:17.3 |
HIP 80754 |
34.05 |
| 2026-10-07 00:00 |
16:11:18.16 |
-82:50:50.1 |
HIP 80754 |
33.58 |
| 2026-10-07 12:00 |
16:11:34.93 |
-82:50:23.2 |
HIP 80754 |
33.11 |
| 2026-10-08 00:00 |
16:11:51.84 |
-82:49:56.5 |
HIP 80754 |
32.65 |
| 2026-10-08 12:00 |
16:12:08.88 |
-82:49:30.0 |
HIP 80754 |
32.18 |
| 2026-10-09 00:00 |
16:12:26.07 |
-82:49:03.8 |
HIP 80754 |
31.72 |
| 2026-10-09 12:00 |
16:12:43.38 |
-82:48:37.8 |
HIP 80567 |
31.15 |
| 2026-10-10 00:00 |
16:13:00.83 |
-82:48:12.1 |
HIP 80567 |
30.47 |
| 2026-10-10 12:00 |
16:13:18.42 |
-82:47:46.6 |
HIP 80567 |
29.79 |
| 2026-10-11 00:00 |
16:13:36.13 |
-82:47:21.4 |
HIP 80567 |
29.10 |