메타데이터
| 항목 |
값 |
| Designation |
C/1983 O1 (Cernis) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1983-07-21T04:28:44.451840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:31Z |
| Obs used |
229 |
| NEO |
- |
| M1 |
5.200 |
| K1 |
6.250 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1984-05-13.0000000 |
| e |
1.00152642 |
| q (au) |
3.317948 |
| a (au) |
-2173.674289 |
| i (deg) |
134.695303 |
| Ω (om, deg) |
209.575905 |
| ω (w, deg) |
186.208578 |
| M (ma, deg) |
0.002887 |
밝기
산란 + 전체 선형
$$
M_a = (1.779 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
1.779 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.659 |
| k |
0.800 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 1983-07-21 |
1988-03-23 |
-2.5184 |
+1.838 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
14:24:28.44 |
-29:13:12.2 |
HIP 70511 |
15.36 |
| 2026-06-01 12:00 |
14:24:26.75 |
-29:13:00.5 |
HIP 70511 |
15.55 |
| 2026-06-02 00:00 |
14:24:25.06 |
-29:12:48.8 |
HIP 70511 |
15.75 |
| 2026-06-02 12:00 |
14:24:23.38 |
-29:12:37.1 |
HIP 70511 |
15.96 |
| 2026-06-03 00:00 |
14:24:21.71 |
-29:12:25.4 |
HIP 70511 |
16.17 |
| 2026-06-03 12:00 |
14:24:20.05 |
-29:12:13.6 |
HIP 70511 |
16.38 |
| 2026-06-04 00:00 |
14:24:18.40 |
-29:12:01.9 |
HIP 70511 |
16.61 |
| 2026-06-04 12:00 |
14:24:16.76 |
-29:11:50.1 |
HIP 70511 |
16.84 |
| 2026-06-05 00:00 |
14:24:15.12 |
-29:11:38.3 |
HIP 70511 |
17.07 |
| 2026-06-05 12:00 |
14:24:13.50 |
-29:11:26.5 |
HIP 70511 |
17.31 |
| 2026-06-06 00:00 |
14:24:11.89 |
-29:11:14.8 |
HIP 70511 |
17.55 |
| 2026-06-06 12:00 |
14:24:10.29 |
-29:11:03.0 |
HIP 70511 |
17.79 |
| 2026-06-07 00:00 |
14:24:08.70 |
-29:10:51.2 |
HIP 70471 |
17.88 |
| 2026-06-07 12:00 |
14:24:07.12 |
-29:10:39.4 |
HIP 70471 |
17.88 |
| 2026-06-08 00:00 |
14:24:05.55 |
-29:10:27.6 |
HIP 70471 |
17.90 |
| 2026-06-08 12:00 |
14:24:03.99 |
-29:10:15.8 |
HIP 70471 |
17.92 |
| 2026-06-09 00:00 |
14:24:02.44 |
-29:10:04.0 |
HIP 70471 |
17.94 |
| 2026-06-09 12:00 |
14:24:00.90 |
-29:09:52.2 |
HIP 70471 |
17.98 |
| 2026-06-10 00:00 |
14:23:59.37 |
-29:09:40.4 |
HIP 70471 |
18.02 |
| 2026-06-10 12:00 |
14:23:57.86 |
-29:09:28.6 |
HIP 70471 |
18.07 |
| 2026-06-11 00:00 |
14:23:56.35 |
-29:09:16.8 |
HIP 70471 |
18.12 |
| 2026-06-11 12:00 |
14:23:54.86 |
-29:09:05.0 |
HIP 70471 |
18.18 |
| 2026-06-12 00:00 |
14:23:53.37 |
-29:08:53.3 |
HIP 70471 |
18.25 |
| 2026-06-12 12:00 |
14:23:51.90 |
-29:08:41.5 |
HIP 70471 |
18.32 |
| 2026-06-13 00:00 |
14:23:50.44 |
-29:08:29.7 |
HIP 70471 |
18.40 |
| 2026-06-13 12:00 |
14:23:49.00 |
-29:08:18.0 |
HIP 70471 |
18.48 |
| 2026-06-14 00:00 |
14:23:47.56 |
-29:08:06.2 |
HIP 70471 |
18.57 |
| 2026-06-14 12:00 |
14:23:46.13 |
-29:07:54.5 |
HIP 70471 |
18.67 |
| 2026-06-15 00:00 |
14:23:44.72 |
-29:07:42.7 |
HIP 70471 |
18.77 |
| 2026-06-15 12:00 |
14:23:43.32 |
-29:07:31.0 |
HIP 70471 |
18.87 |
| 2026-06-16 00:00 |
14:23:41.93 |
-29:07:19.3 |
HIP 70471 |
18.98 |
| 2026-06-16 12:00 |
14:23:40.56 |
-29:07:07.6 |
HIP 70471 |
19.09 |
| 2026-06-17 00:00 |
14:23:39.20 |
-29:06:55.9 |
HIP 70471 |
19.21 |
| 2026-06-17 12:00 |
14:23:37.84 |
-29:06:44.2 |
HIP 70471 |
19.33 |
| 2026-06-18 00:00 |
14:23:36.51 |
-29:06:32.6 |
HIP 70471 |
19.45 |
| 2026-06-18 12:00 |
14:23:35.18 |
-29:06:20.9 |
HIP 70471 |
19.58 |
| 2026-06-19 00:00 |
14:23:33.87 |
-29:06:09.3 |
HIP 70471 |
19.71 |
| 2026-06-19 12:00 |
14:23:32.57 |
-29:05:57.7 |
HIP 70471 |
19.85 |
| 2026-06-20 00:00 |
14:23:31.28 |
-29:05:46.1 |
HIP 70471 |
19.98 |
| 2026-06-20 12:00 |
14:23:30.01 |
-29:05:34.6 |
HIP 70471 |
20.12 |
| 2026-06-21 00:00 |
14:23:28.75 |
-29:05:23.0 |
HIP 70471 |
20.26 |
| 2026-06-21 12:00 |
14:23:27.50 |
-29:05:11.5 |
HIP 70471 |
20.41 |
| 2026-06-22 00:00 |
14:23:26.26 |
-29:05:00.0 |
HIP 70471 |
20.55 |