메타데이터
| 항목 |
값 |
| Designation |
C/2004 YJ35 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2005-03-03T03:36:26.084160Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:46Z |
| Obs used |
216 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2005-02-01.0000000 |
| e |
0.99986436 |
| q (au) |
1.781202 |
| a (au) |
13132.099127 |
| i (deg) |
52.476403 |
| Ω (om, deg) |
328.249684 |
| ω (w, deg) |
136.897955 |
| M (ma, deg) |
359.999980 |
밝기
산란 + 전체 선형
$$
M_a = (17.126 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
17.126 |
| n |
2.000 |
| gf |
0.999 |
| gb |
-1.000 |
| k |
0.800 |
| 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 |
18:17:00.05 |
-71:07:38.9 |
HIP 89721 |
25.00 |
| 2026-07-29 12:00 |
18:16:53.00 |
-71:07:21.7 |
HIP 89721 |
24.92 |
| 2026-07-30 00:00 |
18:16:45.98 |
-71:07:04.2 |
HIP 89721 |
24.85 |
| 2026-07-30 12:00 |
18:16:39.02 |
-71:06:46.4 |
HIP 89382 |
24.34 |
| 2026-07-31 00:00 |
18:16:32.10 |
-71:06:28.5 |
HIP 89382 |
23.82 |
| 2026-07-31 12:00 |
18:16:25.22 |
-71:06:10.3 |
HIP 89382 |
23.30 |
| 2026-08-01 00:00 |
18:16:18.40 |
-71:05:51.8 |
HIP 89382 |
22.79 |
| 2026-08-01 12:00 |
18:16:11.62 |
-71:05:33.1 |
HIP 89382 |
22.29 |
| 2026-08-02 00:00 |
18:16:04.89 |
-71:05:14.2 |
HIP 89382 |
21.78 |
| 2026-08-02 12:00 |
18:15:58.20 |
-71:04:55.1 |
HIP 89382 |
21.28 |
| 2026-08-03 00:00 |
18:15:51.57 |
-71:04:35.7 |
HIP 89382 |
20.79 |
| 2026-08-03 12:00 |
18:15:44.98 |
-71:04:16.1 |
HIP 89382 |
20.30 |
| 2026-08-04 00:00 |
18:15:38.44 |
-71:03:56.3 |
HIP 89382 |
19.82 |
| 2026-08-04 12:00 |
18:15:31.96 |
-71:03:36.2 |
HIP 89382 |
19.35 |
| 2026-08-05 00:00 |
18:15:25.53 |
-71:03:15.9 |
HIP 89382 |
18.88 |
| 2026-08-05 12:00 |
18:15:19.14 |
-71:02:55.4 |
HIP 89382 |
18.41 |
| 2026-08-06 00:00 |
18:15:12.81 |
-71:02:34.7 |
HIP 89382 |
17.96 |
| 2026-08-06 12:00 |
18:15:06.53 |
-71:02:13.8 |
HIP 89382 |
17.51 |
| 2026-08-07 00:00 |
18:15:00.31 |
-71:01:52.6 |
HIP 89382 |
17.07 |
| 2026-08-07 12:00 |
18:14:54.14 |
-71:01:31.3 |
HIP 89382 |
16.63 |
| 2026-08-08 00:00 |
18:14:48.02 |
-71:01:09.7 |
HIP 89382 |
16.21 |
| 2026-08-08 12:00 |
18:14:41.95 |
-71:00:47.9 |
HIP 89382 |
15.80 |
| 2026-08-09 00:00 |
18:14:35.95 |
-71:00:25.9 |
HIP 89382 |
15.39 |
| 2026-08-09 12:00 |
18:14:29.99 |
-71:00:03.7 |
HIP 89382 |
15.00 |
| 2026-08-10 00:00 |
18:14:24.10 |
-70:59:41.3 |
HIP 89382 |
14.62 |
| 2026-08-10 12:00 |
18:14:18.26 |
-70:59:18.7 |
HIP 89382 |
14.25 |
| 2026-08-11 00:00 |
18:14:12.48 |
-70:58:55.8 |
HIP 89382 |
13.89 |
| 2026-08-11 12:00 |
18:14:06.75 |
-70:58:32.8 |
HIP 89382 |
13.55 |
| 2026-08-12 00:00 |
18:14:01.08 |
-70:58:09.6 |
HIP 89382 |
13.23 |
| 2026-08-12 12:00 |
18:13:55.48 |
-70:57:46.2 |
HIP 89382 |
12.91 |
| 2026-08-13 00:00 |
18:13:49.93 |
-70:57:22.6 |
HIP 89382 |
12.62 |
| 2026-08-13 12:00 |
18:13:44.44 |
-70:56:58.8 |
HIP 89382 |
12.35 |
| 2026-08-14 00:00 |
18:13:39.01 |
-70:56:34.8 |
HIP 89382 |
12.09 |
| 2026-08-14 12:00 |
18:13:33.64 |
-70:56:10.6 |
HIP 89382 |
11.85 |
| 2026-08-15 00:00 |
18:13:28.33 |
-70:55:46.3 |
HIP 89382 |
11.64 |
| 2026-08-15 12:00 |
18:13:23.08 |
-70:55:21.7 |
HIP 89382 |
11.45 |
| 2026-08-16 00:00 |
18:13:17.90 |
-70:54:57.0 |
HIP 89382 |
11.28 |
| 2026-08-16 12:00 |
18:13:12.77 |
-70:54:32.1 |
HIP 89382 |
11.13 |
| 2026-08-17 00:00 |
18:13:07.71 |
-70:54:07.0 |
HIP 89382 |
11.01 |
| 2026-08-17 12:00 |
18:13:02.71 |
-70:53:41.8 |
HIP 89382 |
10.91 |
| 2026-08-18 00:00 |
18:12:57.78 |
-70:53:16.4 |
HIP 89382 |
10.84 |
| 2026-08-18 12:00 |
18:12:52.90 |
-70:52:50.8 |
HIP 89382 |
10.80 |
| 2026-08-19 00:00 |
18:12:48.09 |
-70:52:25.0 |
HIP 89382 |
10.78 |