메타데이터
| 항목 |
값 |
| Designation |
C/1961 T1 (Seki) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1961-10-10T15:34:49.782720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:14Z |
| Obs used |
15 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1961-11-12.0000000 |
| e |
0.99215002 |
| q (au) |
0.681202 |
| a (au) |
86.777590 |
| i (deg) |
155.712858 |
| Ω (om, deg) |
247.357198 |
| ω (w, deg) |
126.592481 |
| M (ma, deg) |
0.039444 |
밝기
산란 + 전체 선형
$$
M_a = (9.055 + 4.579\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.055 |
| n |
4.579 |
| gf |
0.800 |
| 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) |
| 2026-06-01 00:00 |
21:03:16.88 |
-38:50:08.1 |
HIP 103832 |
12.08 |
| 2026-06-01 12:00 |
21:03:16.03 |
-38:50:18.2 |
HIP 103832 |
11.85 |
| 2026-06-02 00:00 |
21:03:15.18 |
-38:50:28.3 |
HIP 103832 |
11.62 |
| 2026-06-02 12:00 |
21:03:14.31 |
-38:50:38.5 |
HIP 103832 |
11.38 |
| 2026-06-03 00:00 |
21:03:13.42 |
-38:50:48.6 |
HIP 103832 |
11.14 |
| 2026-06-03 12:00 |
21:03:12.52 |
-38:50:58.7 |
HIP 103832 |
10.90 |
| 2026-06-04 00:00 |
21:03:11.61 |
-38:51:08.9 |
HIP 103832 |
10.66 |
| 2026-06-04 12:00 |
21:03:10.68 |
-38:51:19.1 |
HIP 103832 |
10.42 |
| 2026-06-05 00:00 |
21:03:09.74 |
-38:51:29.2 |
HIP 103832 |
10.17 |
| 2026-06-05 12:00 |
21:03:08.79 |
-38:51:39.4 |
HIP 103832 |
9.93 |
| 2026-06-06 00:00 |
21:03:07.82 |
-38:51:49.6 |
HIP 103832 |
9.68 |
| 2026-06-06 12:00 |
21:03:06.84 |
-38:51:59.8 |
HIP 103832 |
9.42 |
| 2026-06-07 00:00 |
21:03:05.85 |
-38:52:10.0 |
HIP 103832 |
9.17 |
| 2026-06-07 12:00 |
21:03:04.84 |
-38:52:20.2 |
HIP 103832 |
8.91 |
| 2026-06-08 00:00 |
21:03:03.82 |
-38:52:30.4 |
HIP 103832 |
8.66 |
| 2026-06-08 12:00 |
21:03:02.79 |
-38:52:40.6 |
HIP 103832 |
8.40 |
| 2026-06-09 00:00 |
21:03:01.75 |
-38:52:50.8 |
HIP 103832 |
8.13 |
| 2026-06-09 12:00 |
21:03:00.69 |
-38:53:01.0 |
HIP 103832 |
7.87 |
| 2026-06-10 00:00 |
21:02:59.61 |
-38:53:11.3 |
HIP 103832 |
7.60 |
| 2026-06-10 12:00 |
21:02:58.53 |
-38:53:21.5 |
HIP 103832 |
7.34 |
| 2026-06-11 00:00 |
21:02:57.43 |
-38:53:31.7 |
HIP 103832 |
7.07 |
| 2026-06-11 12:00 |
21:02:56.32 |
-38:53:41.9 |
HIP 103832 |
6.79 |
| 2026-06-12 00:00 |
21:02:55.20 |
-38:53:52.1 |
HIP 103832 |
6.52 |
| 2026-06-12 12:00 |
21:02:54.06 |
-38:54:02.4 |
HIP 103832 |
6.25 |
| 2026-06-13 00:00 |
21:02:52.92 |
-38:54:12.6 |
HIP 103832 |
5.97 |
| 2026-06-13 12:00 |
21:02:51.76 |
-38:54:22.8 |
HIP 103832 |
5.69 |
| 2026-06-14 00:00 |
21:02:50.58 |
-38:54:33.0 |
HIP 103832 |
5.41 |
| 2026-06-14 12:00 |
21:02:49.40 |
-38:54:43.2 |
HIP 103832 |
5.13 |
| 2026-06-15 00:00 |
21:02:48.20 |
-38:54:53.4 |
HIP 103832 |
4.84 |
| 2026-06-15 12:00 |
21:02:46.99 |
-38:55:03.5 |
HIP 103832 |
4.56 |
| 2026-06-16 00:00 |
21:02:45.77 |
-38:55:13.7 |
HIP 103832 |
4.27 |
| 2026-06-16 12:00 |
21:02:44.54 |
-38:55:23.9 |
HIP 103832 |
3.98 |
| 2026-06-17 00:00 |
21:02:43.29 |
-38:55:34.0 |
HIP 103832 |
3.69 |
| 2026-06-17 12:00 |
21:02:42.04 |
-38:55:44.2 |
HIP 103832 |
3.40 |
| 2026-06-18 00:00 |
21:02:40.77 |
-38:55:54.3 |
HIP 103832 |
3.11 |
| 2026-06-18 12:00 |
21:02:39.49 |
-38:56:04.4 |
HIP 103832 |
2.82 |
| 2026-06-19 00:00 |
21:02:38.20 |
-38:56:14.5 |
HIP 103832 |
2.53 |
| 2026-06-19 12:00 |
21:02:36.90 |
-38:56:24.6 |
HIP 103832 |
2.24 |
| 2026-06-20 00:00 |
21:02:35.58 |
-38:56:34.7 |
HIP 103832 |
1.95 |
| 2026-06-20 12:00 |
21:02:34.26 |
-38:56:44.8 |
HIP 103832 |
1.67 |
| 2026-06-21 00:00 |
21:02:32.92 |
-38:56:54.8 |
HIP 103832 |
1.39 |
| 2026-06-21 12:00 |
21:02:31.58 |
-38:57:04.8 |
HIP 103832 |
1.13 |
| 2026-06-22 00:00 |
21:02:30.22 |
-38:57:14.8 |
HIP 103832 |
0.90 |