메타데이터
| 항목 |
값 |
| Designation |
C/1998 K1 (Mueller) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1998-09-01T00:55:41.113920Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:53Z |
| Obs used |
171 |
| NEO |
- |
| M1 |
8.000 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1998-06-05.0000000 |
| e |
0.94515162 |
| q (au) |
3.416610 |
| a (au) |
62.291906 |
| i (deg) |
35.636035 |
| Ω (om, deg) |
18.256263 |
| ω (w, deg) |
165.250246 |
| M (ma, deg) |
359.823506 |
밝기
산란 + 전체 선형
$$
M_a = (4.128 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
4.128 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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) |
| 2026-03-26 00:00 |
23:36:12.15 |
-26:37:58.2 |
HIP 116482 |
14.62 |
| 2026-03-26 12:00 |
23:36:14.94 |
-26:37:45.3 |
HIP 116482 |
14.87 |
| 2026-03-27 00:00 |
23:36:17.72 |
-26:37:32.5 |
HIP 116482 |
15.14 |
| 2026-03-27 12:00 |
23:36:20.49 |
-26:37:19.9 |
HIP 116482 |
15.44 |
| 2026-03-28 00:00 |
23:36:23.26 |
-26:37:07.4 |
HIP 116482 |
15.75 |
| 2026-03-28 12:00 |
23:36:26.03 |
-26:36:55.1 |
HIP 116482 |
16.08 |
| 2026-03-29 00:00 |
23:36:28.79 |
-26:36:43.0 |
HIP 116482 |
16.43 |
| 2026-03-29 12:00 |
23:36:31.54 |
-26:36:31.0 |
HIP 116482 |
16.79 |
| 2026-03-30 00:00 |
23:36:34.29 |
-26:36:19.2 |
HIP 116482 |
17.16 |
| 2026-03-30 12:00 |
23:36:37.03 |
-26:36:07.5 |
HIP 116482 |
17.55 |
| 2026-03-31 00:00 |
23:36:39.77 |
-26:35:56.0 |
HIP 116482 |
17.95 |
| 2026-03-31 12:00 |
23:36:42.50 |
-26:35:44.7 |
HIP 116482 |
18.36 |
| 2026-04-01 00:00 |
23:36:45.22 |
-26:35:33.6 |
HIP 116482 |
18.78 |
| 2026-04-01 12:00 |
23:36:47.93 |
-26:35:22.6 |
HIP 116482 |
19.21 |
| 2026-04-02 00:00 |
23:36:50.64 |
-26:35:11.8 |
HIP 116482 |
19.64 |
| 2026-04-02 12:00 |
23:36:53.34 |
-26:35:01.1 |
HIP 116482 |
20.09 |
| 2026-04-03 00:00 |
23:36:56.04 |
-26:34:50.6 |
HIP 116482 |
20.54 |
| 2026-04-03 12:00 |
23:36:58.72 |
-26:34:40.3 |
HIP 116482 |
20.99 |
| 2026-04-04 00:00 |
23:37:01.40 |
-26:34:30.1 |
HIP 116482 |
21.45 |
| 2026-04-04 12:00 |
23:37:04.07 |
-26:34:20.1 |
HIP 116482 |
21.92 |
| 2026-04-05 00:00 |
23:37:06.73 |
-26:34:10.3 |
HIP 116482 |
22.39 |
| 2026-04-05 12:00 |
23:37:09.39 |
-26:34:00.7 |
HIP 116482 |
22.86 |
| 2026-04-06 00:00 |
23:37:12.04 |
-26:33:51.2 |
HIP 116482 |
23.34 |
| 2026-04-06 12:00 |
23:37:14.67 |
-26:33:41.9 |
HIP 116482 |
23.82 |
| 2026-04-07 00:00 |
23:37:17.30 |
-26:33:32.7 |
HIP 116482 |
24.30 |
| 2026-04-07 12:00 |
23:37:19.92 |
-26:33:23.8 |
HIP 116482 |
24.78 |
| 2026-04-08 00:00 |
23:37:22.53 |
-26:33:15.0 |
HIP 116482 |
25.27 |
| 2026-04-08 12:00 |
23:37:25.14 |
-26:33:06.4 |
HIP 116482 |
25.75 |
| 2026-04-09 00:00 |
23:37:27.73 |
-26:32:57.9 |
HIP 116482 |
26.24 |
| 2026-04-09 12:00 |
23:37:30.31 |
-26:32:49.6 |
HIP 116482 |
26.73 |
| 2026-04-10 00:00 |
23:37:32.89 |
-26:32:41.5 |
HIP 116482 |
27.22 |
| 2026-04-10 12:00 |
23:37:35.45 |
-26:32:33.6 |
HIP 116482 |
27.71 |
| 2026-04-11 00:00 |
23:37:38.00 |
-26:32:25.9 |
HIP 116482 |
28.20 |
| 2026-04-11 12:00 |
23:37:40.55 |
-26:32:18.3 |
HIP 116713 |
28.54 |
| 2026-04-12 00:00 |
23:37:43.08 |
-26:32:10.9 |
HIP 116713 |
28.24 |
| 2026-04-12 12:00 |
23:37:45.60 |
-26:32:03.7 |
HIP 116713 |
27.94 |
| 2026-04-13 00:00 |
23:37:48.11 |
-26:31:56.7 |
HIP 116713 |
27.66 |
| 2026-04-13 12:00 |
23:37:50.62 |
-26:31:49.8 |
HIP 116713 |
27.38 |
| 2026-04-14 00:00 |
23:37:53.11 |
-26:31:43.1 |
HIP 116713 |
27.11 |
| 2026-04-14 12:00 |
23:37:55.58 |
-26:31:36.6 |
HIP 116713 |
26.84 |
| 2026-04-15 00:00 |
23:37:58.05 |
-26:31:30.3 |
HIP 116713 |
26.59 |
| 2026-04-15 12:00 |
23:38:00.51 |
-26:31:24.1 |
HIP 116713 |
26.35 |
| 2026-04-16 00:00 |
23:38:02.95 |
-26:31:18.2 |
HIP 116713 |
26.11 |