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) |
| 2026-09-20 00:00 |
06:51:23.85 |
+16:13:33.5 |
HIP 32789 |
22.19 |
| 2026-09-20 12:00 |
06:51:30.10 |
+16:13:13.2 |
HIP 32789 |
23.59 |
| 2026-09-21 00:00 |
06:51:36.26 |
+16:12:53.0 |
HIP 32958 |
24.22 |
| 2026-09-21 12:00 |
06:51:42.34 |
+16:12:32.8 |
HIP 32958 |
24.36 |
| 2026-09-22 00:00 |
06:51:48.34 |
+16:12:12.6 |
HIP 32958 |
24.60 |
| 2026-09-22 12:00 |
06:51:54.25 |
+16:11:52.5 |
HIP 32958 |
24.92 |
| 2026-09-23 00:00 |
06:52:00.08 |
+16:11:32.4 |
HIP 32958 |
25.32 |
| 2026-09-23 12:00 |
06:52:05.81 |
+16:11:12.3 |
HIP 32958 |
25.79 |
| 2026-09-24 00:00 |
06:52:11.47 |
+16:10:52.4 |
HIP 32958 |
26.32 |
| 2026-09-24 12:00 |
06:52:17.04 |
+16:10:32.4 |
HIP 32958 |
26.91 |
| 2026-09-25 00:00 |
06:52:22.52 |
+16:10:12.5 |
HIP 32958 |
27.54 |
| 2026-09-25 12:00 |
06:52:27.91 |
+16:09:52.7 |
HIP 32958 |
28.23 |
| 2026-09-26 00:00 |
06:52:33.22 |
+16:09:32.9 |
HIP 32958 |
28.95 |
| 2026-09-26 12:00 |
06:52:38.43 |
+16:09:13.2 |
HIP 32958 |
29.70 |
| 2026-09-27 00:00 |
06:52:43.57 |
+16:08:53.6 |
HIP 32958 |
30.48 |
| 2026-09-27 12:00 |
06:52:48.61 |
+16:08:34.0 |
HIP 33039 |
31.18 |
| 2026-09-28 00:00 |
06:52:53.56 |
+16:08:14.5 |
HIP 33039 |
30.78 |
| 2026-09-28 12:00 |
06:52:58.43 |
+16:07:55.0 |
HIP 33205 |
30.07 |
| 2026-09-29 00:00 |
06:53:03.21 |
+16:07:35.7 |
HIP 33205 |
28.96 |
| 2026-09-29 12:00 |
06:53:07.89 |
+16:07:16.4 |
HIP 33205 |
27.87 |
| 2026-09-30 00:00 |
06:53:12.49 |
+16:06:57.1 |
HIP 33205 |
26.80 |
| 2026-09-30 12:00 |
06:53:17.00 |
+16:06:38.0 |
HIP 33205 |
25.76 |
| 2026-10-01 00:00 |
06:53:21.41 |
+16:06:18.9 |
HIP 33205 |
24.74 |
| 2026-10-01 12:00 |
06:53:25.74 |
+16:05:59.9 |
HIP 33205 |
23.74 |
| 2026-10-02 00:00 |
06:53:29.98 |
+16:05:40.9 |
HIP 33205 |
22.78 |
| 2026-10-02 12:00 |
06:53:34.12 |
+16:05:22.1 |
HIP 33205 |
21.84 |
| 2026-10-03 00:00 |
06:53:38.17 |
+16:05:03.3 |
HIP 33205 |
20.92 |
| 2026-10-03 12:00 |
06:53:42.13 |
+16:04:44.7 |
HIP 33205 |
20.03 |
| 2026-10-04 00:00 |
06:53:46.00 |
+16:04:26.1 |
HIP 33205 |
19.17 |
| 2026-10-04 12:00 |
06:53:49.78 |
+16:04:07.6 |
HIP 33205 |
18.34 |
| 2026-10-05 00:00 |
06:53:53.46 |
+16:03:49.2 |
HIP 33205 |
17.53 |
| 2026-10-05 12:00 |
06:53:57.05 |
+16:03:30.9 |
HIP 33205 |
16.76 |
| 2026-10-06 00:00 |
06:54:00.54 |
+16:03:12.7 |
HIP 33205 |
16.01 |
| 2026-10-06 12:00 |
06:54:03.94 |
+16:02:54.6 |
HIP 33205 |
15.29 |
| 2026-10-07 00:00 |
06:54:07.25 |
+16:02:36.6 |
HIP 33205 |
14.60 |
| 2026-10-07 12:00 |
06:54:10.46 |
+16:02:18.7 |
HIP 33205 |
13.95 |
| 2026-10-08 00:00 |
06:54:13.58 |
+16:02:00.9 |
HIP 33205 |
13.32 |
| 2026-10-08 12:00 |
06:54:16.60 |
+16:01:43.2 |
HIP 33205 |
12.73 |
| 2026-10-09 00:00 |
06:54:19.53 |
+16:01:25.7 |
HIP 33205 |
12.17 |
| 2026-10-09 12:00 |
06:54:22.36 |
+16:01:08.2 |
HIP 33205 |
11.64 |
| 2026-10-10 00:00 |
06:54:25.10 |
+16:00:50.9 |
HIP 33205 |
11.14 |
| 2026-10-10 12:00 |
06:54:27.74 |
+16:00:33.7 |
HIP 33205 |
10.68 |
| 2026-10-11 00:00 |
06:54:30.29 |
+16:00:16.6 |
HIP 33205 |
10.26 |