메타데이터
| 항목 |
값 |
| Designation |
C/1984 V1 (Levy-Rudenko) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1984-12-14T06:08:07.969920Z |
| Orbit solution date (soln_date, UTC) |
2022-04-11T23:22:27Z |
| Obs used |
162 |
| NEO |
- |
| M1 |
9.500 |
| K1 |
23.750 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1985-01-06.0000000 |
| e |
0.99921104 |
| q (au) |
0.917948 |
| a (au) |
1163.486000 |
| i (deg) |
65.714614 |
| Ω (om, deg) |
331.167739 |
| ω (w, deg) |
82.736865 |
| M (ma, deg) |
0.000565 |
밝기
산란 + 전체 선형
$$
M_a = (8.012 + 3.636\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.012 |
| n |
3.636 |
| gf |
1.000 |
| gb |
-0.500 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 1984-11-15 |
1984-12-14 |
+10.1838 |
+0.326 |
| 1984-12-14 |
1985-02-19 |
-0.0916 |
-0.071 |
| 1985-02-19 |
1985-04-10 |
+14.5027 |
-2.757 |
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 |
10:31:48.61 |
-57:56:57.5 |
HIP 51676 |
19.30 |
| 2026-06-01 12:00 |
10:31:48.83 |
-57:56:33.9 |
HIP 51676 |
19.58 |
| 2026-06-02 00:00 |
10:31:49.07 |
-57:56:10.3 |
HIP 51676 |
19.86 |
| 2026-06-02 12:00 |
10:31:49.34 |
-57:55:46.7 |
HIP 51676 |
20.14 |
| 2026-06-03 00:00 |
10:31:49.63 |
-57:55:23.2 |
HIP 51676 |
20.42 |
| 2026-06-03 12:00 |
10:31:49.95 |
-57:54:59.8 |
HIP 51676 |
20.71 |
| 2026-06-04 00:00 |
10:31:50.30 |
-57:54:36.4 |
HIP 51676 |
20.99 |
| 2026-06-04 12:00 |
10:31:50.67 |
-57:54:13.1 |
HIP 51676 |
21.27 |
| 2026-06-05 00:00 |
10:31:51.07 |
-57:53:49.8 |
HIP 51676 |
21.56 |
| 2026-06-05 12:00 |
10:31:51.49 |
-57:53:26.6 |
HIP 51676 |
21.84 |
| 2026-06-06 00:00 |
10:31:51.94 |
-57:53:03.5 |
HIP 51650 |
21.70 |
| 2026-06-06 12:00 |
10:31:52.42 |
-57:52:40.4 |
HIP 51650 |
21.33 |
| 2026-06-07 00:00 |
10:31:52.92 |
-57:52:17.4 |
HIP 51650 |
20.96 |
| 2026-06-07 12:00 |
10:31:53.44 |
-57:51:54.5 |
HIP 51650 |
20.60 |
| 2026-06-08 00:00 |
10:31:54.00 |
-57:51:31.6 |
HIP 51650 |
20.23 |
| 2026-06-08 12:00 |
10:31:54.57 |
-57:51:08.8 |
HIP 51650 |
19.86 |
| 2026-06-09 00:00 |
10:31:55.17 |
-57:50:46.1 |
HIP 51650 |
19.49 |
| 2026-06-09 12:00 |
10:31:55.80 |
-57:50:23.5 |
HIP 51650 |
19.13 |
| 2026-06-10 00:00 |
10:31:56.46 |
-57:50:00.9 |
HIP 51650 |
18.76 |
| 2026-06-10 12:00 |
10:31:57.13 |
-57:49:38.4 |
HIP 51650 |
18.39 |
| 2026-06-11 00:00 |
10:31:57.84 |
-57:49:16.0 |
HIP 51650 |
18.03 |
| 2026-06-11 12:00 |
10:31:58.57 |
-57:48:53.7 |
HIP 51650 |
17.66 |
| 2026-06-12 00:00 |
10:31:59.32 |
-57:48:31.5 |
HIP 51650 |
17.29 |
| 2026-06-12 12:00 |
10:32:00.10 |
-57:48:09.3 |
HIP 51650 |
16.93 |
| 2026-06-13 00:00 |
10:32:00.90 |
-57:47:47.2 |
HIP 51650 |
16.56 |
| 2026-06-13 12:00 |
10:32:01.73 |
-57:47:25.3 |
HIP 51650 |
16.19 |
| 2026-06-14 00:00 |
10:32:02.59 |
-57:47:03.4 |
HIP 51650 |
15.83 |
| 2026-06-14 12:00 |
10:32:03.46 |
-57:46:41.6 |
HIP 51650 |
15.46 |
| 2026-06-15 00:00 |
10:32:04.37 |
-57:46:19.9 |
HIP 51650 |
15.10 |
| 2026-06-15 12:00 |
10:32:05.30 |
-57:45:58.3 |
HIP 51650 |
14.73 |
| 2026-06-16 00:00 |
10:32:06.25 |
-57:45:36.8 |
HIP 51650 |
14.36 |
| 2026-06-16 12:00 |
10:32:07.23 |
-57:45:15.4 |
HIP 51650 |
14.00 |
| 2026-06-17 00:00 |
10:32:08.23 |
-57:44:54.1 |
HIP 51650 |
13.63 |
| 2026-06-17 12:00 |
10:32:09.25 |
-57:44:32.9 |
HIP 51650 |
13.27 |
| 2026-06-18 00:00 |
10:32:10.30 |
-57:44:11.8 |
HIP 51650 |
12.90 |
| 2026-06-18 12:00 |
10:32:11.37 |
-57:43:50.8 |
HIP 51650 |
12.54 |
| 2026-06-19 00:00 |
10:32:12.47 |
-57:43:29.9 |
HIP 51650 |
12.18 |
| 2026-06-19 12:00 |
10:32:13.59 |
-57:43:09.2 |
HIP 51650 |
11.81 |
| 2026-06-20 00:00 |
10:32:14.74 |
-57:42:48.5 |
HIP 51650 |
11.45 |
| 2026-06-20 12:00 |
10:32:15.91 |
-57:42:28.0 |
HIP 51650 |
11.08 |
| 2026-06-21 00:00 |
10:32:17.10 |
-57:42:07.5 |
HIP 51650 |
10.72 |
| 2026-06-21 12:00 |
10:32:18.31 |
-57:41:47.2 |
HIP 51650 |
10.36 |
| 2026-06-22 00:00 |
10:32:19.55 |
-57:41:27.0 |
HIP 51650 |
10.00 |