96P/Machholz 1
메타데이터
| 항목 |
값 |
| Designation |
96P/Machholz 1 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2017-10-27T23:03:31.547520Z |
| Orbit solution date (soln_date, UTC) |
2025-02-20T21:30:21Z |
| Obs used |
669 |
| NEO |
Yes |
| M1 |
13.700 |
| K1 |
8.750 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2017-07-27.0000000 |
| e |
0.95916084 |
| q (au) |
0.123950 |
| a (au) |
3.035069 |
| i (deg) |
58.137900 |
| Ω (om, deg) |
94.254723 |
| ω (w, deg) |
14.792845 |
| M (ma, deg) |
342.671895 |
밝기
산란 + 전체 선형
$$
M_a = (13.149 + 4.807\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.149 |
| n |
4.807 |
| gf |
0.800 |
| gb |
-0.779 |
| k |
0.941 |
| δ90 |
1.000 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2022-05-06 |
2023-01-31 |
-29.5818 |
-26.684 |
| 2023-01-31 |
2024-07-14 |
+0.0300 |
-0.424 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
19:23:00.68 |
-34:19:37.0 |
HIP 95313 |
13.40 |
| 2026-02-03 12:00 |
19:23:21.46 |
-34:19:41.8 |
HIP 95313 |
12.03 |
| 2026-02-04 00:00 |
19:23:42.19 |
-34:19:47.0 |
HIP 95313 |
12.10 |
| 2026-02-04 12:00 |
19:24:02.87 |
-34:19:52.6 |
HIP 95374 |
12.82 |
| 2026-02-05 00:00 |
19:24:23.50 |
-34:19:58.5 |
HIP 95374 |
13.03 |
| 2026-02-05 12:00 |
19:24:44.07 |
-34:20:04.9 |
HIP 95374 |
14.53 |
| 2026-02-06 00:00 |
19:25:04.59 |
-34:20:11.6 |
HIP 95374 |
16.97 |
| 2026-02-06 12:00 |
19:25:25.06 |
-34:20:18.7 |
HIP 95553 |
18.80 |
| 2026-02-07 00:00 |
19:25:45.46 |
-34:20:26.2 |
HIP 95553 |
17.38 |
| 2026-02-07 12:00 |
19:26:05.81 |
-34:20:34.1 |
HIP 95613 |
16.44 |
| 2026-02-08 00:00 |
19:26:26.11 |
-34:20:42.4 |
HIP 95613 |
14.72 |
| 2026-02-08 12:00 |
19:26:46.34 |
-34:20:51.1 |
HIP 95641 |
13.42 |
| 2026-02-09 00:00 |
19:27:06.52 |
-34:21:00.2 |
HIP 95641 |
11.96 |
| 2026-02-09 12:00 |
19:27:26.63 |
-34:21:09.7 |
HIP 95641 |
11.86 |
| 2026-02-10 00:00 |
19:27:46.68 |
-34:21:19.6 |
HIP 95641 |
13.12 |
| 2026-02-10 12:00 |
19:28:06.67 |
-34:21:30.0 |
HIP 95641 |
15.42 |
| 2026-02-11 00:00 |
19:28:26.59 |
-34:21:40.7 |
HIP 95641 |
18.34 |
| 2026-02-11 12:00 |
19:28:46.45 |
-34:21:51.9 |
HIP 95641 |
21.65 |
| 2026-02-12 00:00 |
19:29:06.25 |
-34:22:03.5 |
HIP 95641 |
25.17 |
| 2026-02-12 12:00 |
19:29:25.97 |
-34:22:15.6 |
HIP 95641 |
28.82 |
| 2026-02-13 00:00 |
19:29:45.63 |
-34:22:28.1 |
HIP 95641 |
32.56 |
| 2026-02-13 12:00 |
19:30:05.22 |
-34:22:41.1 |
HIP 95921 |
33.92 |
| 2026-02-14 00:00 |
19:30:24.74 |
-34:22:54.5 |
HIP 96155 |
32.96 |
| 2026-02-14 12:00 |
19:30:44.19 |
-34:23:08.3 |
HIP 96155 |
28.94 |
| 2026-02-15 00:00 |
19:31:03.57 |
-34:23:22.6 |
HIP 96155 |
24.93 |
| 2026-02-15 12:00 |
19:31:22.88 |
-34:23:37.4 |
HIP 96155 |
20.95 |
| 2026-02-16 00:00 |
19:31:42.11 |
-34:23:52.6 |
HIP 96155 |
16.98 |
| 2026-02-16 12:00 |
19:32:01.26 |
-34:24:08.3 |
HIP 96155 |
13.03 |
| 2026-02-17 00:00 |
19:32:20.34 |
-34:24:24.5 |
HIP 96155 |
9.10 |
| 2026-02-17 12:00 |
19:32:39.34 |
-34:24:41.2 |
HIP 96155 |
5.22 |
| 2026-02-18 00:00 |
19:32:58.26 |
-34:24:58.3 |
HIP 96155 |
1.60 |
| 2026-02-18 12:00 |
19:33:17.10 |
-34:25:15.9 |
HIP 96155 |
2.91 |
| 2026-02-19 00:00 |
19:33:35.87 |
-34:25:34.0 |
HIP 96155 |
6.68 |
| 2026-02-19 12:00 |
19:33:54.55 |
-34:25:52.7 |
HIP 96155 |
10.51 |
| 2026-02-20 00:00 |
19:34:13.14 |
-34:26:11.8 |
HIP 96155 |
14.35 |
| 2026-02-20 12:00 |
19:34:31.66 |
-34:26:31.4 |
HIP 96382 |
16.03 |
| 2026-02-21 00:00 |
19:34:50.09 |
-34:26:51.5 |
HIP 96382 |
12.29 |
| 2026-02-21 12:00 |
19:35:08.43 |
-34:27:12.2 |
HIP 96382 |
8.62 |
| 2026-02-22 00:00 |
19:35:26.69 |
-34:27:33.3 |
HIP 96382 |
5.16 |
| 2026-02-22 12:00 |
19:35:44.86 |
-34:27:55.0 |
HIP 96382 |
2.73 |
| 2026-02-23 00:00 |
19:36:02.94 |
-34:28:17.2 |
HIP 96382 |
4.05 |
| 2026-02-23 12:00 |
19:36:20.93 |
-34:28:39.9 |
HIP 96382 |
7.28 |
| 2026-02-24 00:00 |
19:36:38.83 |
-34:29:03.2 |
HIP 96382 |
10.82 |