메타데이터
| 항목 |
값 |
| Designation |
140P/Bowell-Skiff |
| Type |
P |
| Perihelion (tp_cal, UTC) |
1999-05-14T19:29:10.665600Z |
| Orbit solution date (soln_date, UTC) |
- |
| Obs used |
- |
| NEO |
- |
| M1 |
11.500 |
| K1 |
15.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1999-05-22.0000000 |
| e |
0.69176166 |
| q (au) |
1.971877 |
| a (au) |
6.397248 |
| i (deg) |
3.835828 |
| Ω (om, deg) |
343.456457 |
| ω (w, deg) |
173.086771 |
| M (ma, deg) |
0.437851 |
밝기
산란 + 전체 선형
$$
M_a = (9.912 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.912 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-06-01 00:00 |
23:49:38.50 |
-00:32:48.0 |
HIP 117395 |
25.45 |
| 2026-06-01 12:00 |
23:49:43.61 |
-00:32:11.1 |
HIP 117395 |
26.85 |
| 2026-06-02 00:00 |
23:49:48.64 |
-00:31:34.6 |
HIP 117395 |
28.24 |
| 2026-06-02 12:00 |
23:49:53.60 |
-00:30:58.5 |
HIP 117395 |
29.61 |
| 2026-06-03 00:00 |
23:49:58.48 |
-00:30:23.0 |
HIP 117395 |
30.96 |
| 2026-06-03 12:00 |
23:50:03.28 |
-00:29:47.9 |
HIP 117395 |
32.29 |
| 2026-06-04 00:00 |
23:50:08.01 |
-00:29:13.4 |
HIP 117395 |
33.60 |
| 2026-06-04 12:00 |
23:50:12.66 |
-00:28:39.3 |
HIP 117395 |
34.89 |
| 2026-06-05 00:00 |
23:50:17.23 |
-00:28:05.8 |
HIP 117395 |
36.16 |
| 2026-06-05 12:00 |
23:50:21.72 |
-00:27:32.7 |
HIP 117395 |
37.41 |
| 2026-06-06 00:00 |
23:50:26.13 |
-00:27:00.1 |
HIP 117395 |
38.63 |
| 2026-06-06 12:00 |
23:50:30.47 |
-00:26:28.1 |
HIP 117739 |
39.75 |
| 2026-06-07 00:00 |
23:50:34.72 |
-00:25:56.5 |
HIP 117739 |
39.17 |
| 2026-06-07 12:00 |
23:50:38.89 |
-00:25:25.5 |
HIP 117739 |
38.63 |
| 2026-06-08 00:00 |
23:50:42.98 |
-00:24:55.0 |
HIP 117739 |
38.12 |
| 2026-06-08 12:00 |
23:50:47.00 |
-00:24:24.9 |
HIP 117739 |
37.66 |
| 2026-06-09 00:00 |
23:50:50.93 |
-00:23:55.4 |
HIP 117739 |
37.23 |
| 2026-06-09 12:00 |
23:50:54.78 |
-00:23:26.5 |
HIP 117739 |
36.84 |
| 2026-06-10 00:00 |
23:50:58.54 |
-00:22:58.0 |
HIP 117739 |
36.49 |
| 2026-06-10 12:00 |
23:51:02.23 |
-00:22:30.1 |
HIP 117739 |
36.17 |
| 2026-06-11 00:00 |
23:51:05.83 |
-00:22:02.7 |
HIP 117739 |
35.88 |
| 2026-06-11 12:00 |
23:51:09.35 |
-00:21:35.8 |
HIP 117739 |
35.63 |
| 2026-06-12 00:00 |
23:51:12.79 |
-00:21:09.5 |
HIP 117739 |
35.41 |
| 2026-06-12 12:00 |
23:51:16.14 |
-00:20:43.7 |
HIP 117739 |
35.22 |
| 2026-06-13 00:00 |
23:51:19.41 |
-00:20:18.4 |
HIP 117739 |
35.06 |
| 2026-06-13 12:00 |
23:51:22.59 |
-00:19:53.7 |
HIP 117739 |
34.93 |
| 2026-06-14 00:00 |
23:51:25.69 |
-00:19:29.5 |
HIP 117739 |
34.83 |
| 2026-06-14 12:00 |
23:51:28.70 |
-00:19:05.9 |
HIP 117739 |
34.75 |
| 2026-06-15 00:00 |
23:51:31.63 |
-00:18:42.8 |
HIP 117739 |
34.69 |
| 2026-06-15 12:00 |
23:51:34.47 |
-00:18:20.3 |
HIP 117739 |
34.66 |
| 2026-06-16 00:00 |
23:51:37.23 |
-00:17:58.3 |
HIP 117739 |
34.65 |
| 2026-06-16 12:00 |
23:51:39.90 |
-00:17:36.8 |
HIP 117739 |
34.66 |
| 2026-06-17 00:00 |
23:51:42.48 |
-00:17:16.0 |
HIP 117739 |
34.68 |
| 2026-06-17 12:00 |
23:51:44.97 |
-00:16:55.6 |
HIP 117739 |
34.72 |
| 2026-06-18 00:00 |
23:51:47.38 |
-00:16:35.9 |
HIP 117739 |
34.78 |
| 2026-06-18 12:00 |
23:51:49.71 |
-00:16:16.7 |
HIP 117739 |
34.85 |
| 2026-06-19 00:00 |
23:51:51.94 |
-00:15:58.0 |
HIP 117739 |
34.93 |
| 2026-06-19 12:00 |
23:51:54.09 |
-00:15:40.0 |
HIP 117739 |
35.02 |
| 2026-06-20 00:00 |
23:51:56.15 |
-00:15:22.4 |
HIP 117739 |
35.12 |
| 2026-06-20 12:00 |
23:51:58.12 |
-00:15:05.5 |
HIP 117739 |
35.22 |
| 2026-06-21 00:00 |
23:52:00.00 |
-00:14:49.1 |
HIP 117739 |
35.34 |
| 2026-06-21 12:00 |
23:52:01.79 |
-00:14:33.3 |
HIP 117739 |
35.46 |
| 2026-06-22 00:00 |
23:52:03.50 |
-00:14:18.0 |
HIP 117739 |
35.58 |