메타데이터
| 항목 |
값 |
| Designation |
C/1997 J1 (Mueller) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1997-05-03T19:16:39.167040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:50Z |
| Obs used |
497 |
| NEO |
- |
| M1 |
8.300 |
| K1 |
9.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1997-08-08.0000000 |
| e |
0.99099113 |
| q (au) |
2.302131 |
| a (au) |
255.540410 |
| i (deg) |
122.968328 |
| Ω (om, deg) |
277.076050 |
| ω (w, deg) |
98.954561 |
| M (ma, deg) |
0.023210 |
밝기
산란 + 전체 선형
$$
M_a = (7.672 + 4.834\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.672 |
| n |
4.834 |
| gf |
1.000 |
| gb |
-0.500 |
| 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) |
| 2026-03-26 00:00 |
03:20:36.29 |
-37:45:18.0 |
HIP 15607 |
18.84 |
| 2026-03-26 12:00 |
03:20:38.14 |
-37:44:53.7 |
HIP 15607 |
18.37 |
| 2026-03-27 00:00 |
03:20:40.01 |
-37:44:29.6 |
HIP 15607 |
17.89 |
| 2026-03-27 12:00 |
03:20:41.90 |
-37:44:05.6 |
HIP 15607 |
17.43 |
| 2026-03-28 00:00 |
03:20:43.80 |
-37:43:41.8 |
HIP 15607 |
16.97 |
| 2026-03-28 12:00 |
03:20:45.72 |
-37:43:18.1 |
HIP 15607 |
16.52 |
| 2026-03-29 00:00 |
03:20:47.66 |
-37:42:54.6 |
HIP 15607 |
16.07 |
| 2026-03-29 12:00 |
03:20:49.61 |
-37:42:31.2 |
HIP 15607 |
15.64 |
| 2026-03-30 00:00 |
03:20:51.58 |
-37:42:08.0 |
HIP 15607 |
15.21 |
| 2026-03-30 12:00 |
03:20:53.57 |
-37:41:45.0 |
HIP 15607 |
14.80 |
| 2026-03-31 00:00 |
03:20:55.57 |
-37:41:22.1 |
HIP 15607 |
14.39 |
| 2026-03-31 12:00 |
03:20:57.59 |
-37:40:59.3 |
HIP 15607 |
14.00 |
| 2026-04-01 00:00 |
03:20:59.63 |
-37:40:36.7 |
HIP 15607 |
13.62 |
| 2026-04-01 12:00 |
03:21:01.68 |
-37:40:14.3 |
HIP 15607 |
13.26 |
| 2026-04-02 00:00 |
03:21:03.75 |
-37:39:52.1 |
HIP 15607 |
12.92 |
| 2026-04-02 12:00 |
03:21:05.83 |
-37:39:30.0 |
HIP 15607 |
12.59 |
| 2026-04-03 00:00 |
03:21:07.93 |
-37:39:08.0 |
HIP 15607 |
12.28 |
| 2026-04-03 12:00 |
03:21:10.04 |
-37:38:46.3 |
HIP 15607 |
11.99 |
| 2026-04-04 00:00 |
03:21:12.17 |
-37:38:24.7 |
HIP 15607 |
11.73 |
| 2026-04-04 12:00 |
03:21:14.31 |
-37:38:03.2 |
HIP 15607 |
11.49 |
| 2026-04-05 00:00 |
03:21:16.47 |
-37:37:42.0 |
HIP 15607 |
11.27 |
| 2026-04-05 12:00 |
03:21:18.64 |
-37:37:20.9 |
HIP 15607 |
11.08 |
| 2026-04-06 00:00 |
03:21:20.83 |
-37:37:00.0 |
HIP 15607 |
10.92 |
| 2026-04-06 12:00 |
03:21:23.03 |
-37:36:39.3 |
HIP 15607 |
10.80 |
| 2026-04-07 00:00 |
03:21:25.25 |
-37:36:18.7 |
HIP 15607 |
10.70 |
| 2026-04-07 12:00 |
03:21:27.48 |
-37:35:58.3 |
HIP 15607 |
10.63 |
| 2026-04-08 00:00 |
03:21:29.72 |
-37:35:38.1 |
HIP 15607 |
10.60 |
| 2026-04-08 12:00 |
03:21:31.98 |
-37:35:18.1 |
HIP 15607 |
10.60 |
| 2026-04-09 00:00 |
03:21:34.25 |
-37:34:58.2 |
HIP 15607 |
10.64 |
| 2026-04-09 12:00 |
03:21:36.53 |
-37:34:38.6 |
HIP 15607 |
10.71 |
| 2026-04-10 00:00 |
03:21:38.83 |
-37:34:19.1 |
HIP 15607 |
10.81 |
| 2026-04-10 12:00 |
03:21:41.14 |
-37:33:59.8 |
HIP 15607 |
10.94 |
| 2026-04-11 00:00 |
03:21:43.46 |
-37:33:40.7 |
HIP 15607 |
11.10 |
| 2026-04-11 12:00 |
03:21:45.80 |
-37:33:21.8 |
HIP 15607 |
11.30 |
| 2026-04-12 00:00 |
03:21:48.14 |
-37:33:03.1 |
HIP 15607 |
11.52 |
| 2026-04-12 12:00 |
03:21:50.51 |
-37:32:44.6 |
HIP 15607 |
11.76 |
| 2026-04-13 00:00 |
03:21:52.88 |
-37:32:26.2 |
HIP 15607 |
12.04 |
| 2026-04-13 12:00 |
03:21:55.26 |
-37:32:08.1 |
HIP 15607 |
12.33 |
| 2026-04-14 00:00 |
03:21:57.66 |
-37:31:50.2 |
HIP 15607 |
12.65 |
| 2026-04-14 12:00 |
03:22:00.07 |
-37:31:32.4 |
HIP 15607 |
12.98 |
| 2026-04-15 00:00 |
03:22:02.48 |
-37:31:14.9 |
HIP 15607 |
13.34 |
| 2026-04-15 12:00 |
03:22:04.92 |
-37:30:57.5 |
HIP 15607 |
13.71 |
| 2026-04-16 00:00 |
03:22:07.36 |
-37:30:40.4 |
HIP 15607 |
14.10 |