메타데이터
| 항목 |
값 |
| Designation |
C/2014 OG392 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2021-12-01T11:14:16.670400Z |
| Orbit solution date (soln_date, UTC) |
2025-12-18T15:12:21Z |
| Obs used |
369 |
| NEO |
- |
| M1 |
11.500 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-08-18.0000000 |
| e |
0.18203659 |
| q (au) |
9.968960 |
| a (au) |
12.187538 |
| i (deg) |
9.036164 |
| Ω (om, deg) |
145.825140 |
| ω (w, deg) |
254.110404 |
| M (ma, deg) |
340.623312 |
밝기
산란 + 전체 선형
$$
M_a = (H_0 + n\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
- |
| n |
- |
| gf |
- |
| gb |
- |
| k |
- |
| δ90 |
- |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
06:33:51.30 |
+16:46:19.5 |
HIP 31236 |
15.23 |
| 2026-07-29 12:00 |
06:34:03.96 |
+16:46:06.0 |
HIP 31403 |
12.64 |
| 2026-07-30 00:00 |
06:34:16.58 |
+16:45:52.3 |
HIP 31403 |
9.61 |
| 2026-07-30 12:00 |
06:34:29.17 |
+16:45:38.5 |
HIP 31403 |
6.60 |
| 2026-07-31 00:00 |
06:34:41.73 |
+16:45:24.5 |
HIP 31403 |
3.62 |
| 2026-07-31 12:00 |
06:34:54.24 |
+16:45:10.4 |
HIP 31403 |
0.89 |
| 2026-08-01 00:00 |
06:35:06.72 |
+16:44:56.1 |
HIP 31403 |
2.55 |
| 2026-08-01 12:00 |
06:35:19.17 |
+16:44:41.7 |
HIP 31403 |
5.49 |
| 2026-08-02 00:00 |
06:35:31.57 |
+16:44:27.1 |
HIP 31525 |
8.05 |
| 2026-08-02 12:00 |
06:35:43.94 |
+16:44:12.4 |
HIP 31525 |
5.66 |
| 2026-08-03 00:00 |
06:35:56.27 |
+16:43:57.6 |
HIP 31525 |
4.11 |
| 2026-08-03 12:00 |
06:36:08.56 |
+16:43:42.7 |
HIP 31525 |
4.39 |
| 2026-08-04 00:00 |
06:36:20.81 |
+16:43:27.6 |
HIP 31525 |
6.25 |
| 2026-08-04 12:00 |
06:36:33.03 |
+16:43:12.3 |
HIP 31525 |
8.72 |
| 2026-08-05 00:00 |
06:36:45.20 |
+16:42:57.0 |
HIP 31525 |
11.41 |
| 2026-08-05 12:00 |
06:36:57.33 |
+16:42:41.5 |
HIP 31525 |
14.18 |
| 2026-08-06 00:00 |
06:37:09.42 |
+16:42:25.8 |
HIP 31525 |
16.99 |
| 2026-08-06 12:00 |
06:37:21.46 |
+16:42:10.1 |
HIP 31681 |
18.90 |
| 2026-08-07 00:00 |
06:37:33.47 |
+16:41:54.2 |
HIP 31681 |
18.07 |
| 2026-08-07 12:00 |
06:37:45.43 |
+16:41:38.2 |
HIP 31681 |
17.68 |
| 2026-08-08 00:00 |
06:37:57.34 |
+16:41:22.1 |
HIP 31681 |
17.75 |
| 2026-08-08 12:00 |
06:38:09.22 |
+16:41:05.8 |
HIP 31681 |
18.27 |
| 2026-08-09 00:00 |
06:38:21.04 |
+16:40:49.4 |
HIP 31681 |
19.20 |
| 2026-08-09 12:00 |
06:38:32.83 |
+16:40:32.9 |
HIP 31681 |
20.48 |
| 2026-08-10 00:00 |
06:38:44.56 |
+16:40:16.3 |
HIP 31909 |
20.11 |
| 2026-08-10 12:00 |
06:38:56.25 |
+16:39:59.5 |
HIP 31909 |
17.40 |
| 2026-08-11 00:00 |
06:39:07.90 |
+16:39:42.7 |
HIP 31909 |
14.73 |
| 2026-08-11 12:00 |
06:39:19.49 |
+16:39:25.7 |
HIP 31909 |
12.13 |
| 2026-08-12 00:00 |
06:39:31.04 |
+16:39:08.6 |
HIP 31909 |
9.65 |
| 2026-08-12 12:00 |
06:39:42.54 |
+16:38:51.4 |
HIP 31909 |
7.40 |
| 2026-08-13 00:00 |
06:39:53.99 |
+16:38:34.1 |
HIP 31909 |
5.64 |
| 2026-08-13 12:00 |
06:40:05.39 |
+16:38:16.7 |
HIP 31909 |
4.91 |
| 2026-08-14 00:00 |
06:40:16.73 |
+16:37:59.2 |
HIP 31909 |
5.61 |
| 2026-08-14 12:00 |
06:40:28.03 |
+16:37:41.6 |
HIP 31909 |
7.32 |
| 2026-08-15 00:00 |
06:40:39.28 |
+16:37:23.9 |
HIP 31909 |
9.51 |
| 2026-08-15 12:00 |
06:40:50.47 |
+16:37:06.0 |
HIP 31909 |
11.90 |
| 2026-08-16 00:00 |
06:41:01.61 |
+16:36:48.1 |
HIP 32020 |
13.83 |
| 2026-08-16 12:00 |
06:41:12.70 |
+16:36:30.1 |
HIP 32020 |
12.83 |
| 2026-08-17 00:00 |
06:41:23.74 |
+16:36:12.0 |
HIP 32020 |
12.35 |
| 2026-08-17 12:00 |
06:41:34.72 |
+16:35:53.8 |
HIP 32020 |
12.42 |
| 2026-08-18 00:00 |
06:41:45.65 |
+16:35:35.5 |
HIP 32020 |
13.04 |
| 2026-08-18 12:00 |
06:41:56.52 |
+16:35:17.1 |
HIP 32020 |
14.11 |
| 2026-08-19 00:00 |
06:42:07.34 |
+16:34:58.6 |
HIP 32020 |
15.56 |