메타데이터
| 항목 |
값 |
| Designation |
122P/de Vico |
| Type |
P |
| Perihelion (tp_cal, UTC) |
1995-10-06T00:00:14.981760Z |
| Orbit solution date (soln_date, UTC) |
2001-07-02T16:09:03Z |
| Obs used |
294 |
| NEO |
Yes |
| M1 |
7.500 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1996-07-16.0000000 |
| e |
0.96270889 |
| q (au) |
0.659337 |
| a (au) |
17.680817 |
| i (deg) |
85.382753 |
| Ω (om, deg) |
79.624501 |
| ω (w, deg) |
12.996092 |
| M (ma, deg) |
3.765032 |
밝기
산란 + 전체 선형
$$
M_a = (8.029 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.029 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
0.800 |
| δ90 |
1.000 |
| 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 |
| 1995-09-18 |
1995-10-05 |
+0.7319 |
+0.214 |
| 1995-10-06 |
1995-11-26 |
-3.7764 |
-0.479 |
| 1995-11-26 |
1996-01-26 |
+4.5518 |
-1.150 |
| 1996-01-26 |
1996-06-25 |
+14.1222 |
-4.275 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
17:22:50.01 |
-33:58:16.2 |
HIP 85046 |
9.25 |
| 2026-03-26 12:00 |
17:22:49.07 |
-33:58:26.8 |
HIP 85046 |
9.45 |
| 2026-03-27 00:00 |
17:22:48.09 |
-33:58:37.5 |
HIP 85046 |
9.64 |
| 2026-03-27 12:00 |
17:22:47.07 |
-33:58:48.0 |
HIP 85046 |
9.84 |
| 2026-03-28 00:00 |
17:22:46.02 |
-33:58:58.6 |
HIP 85046 |
10.05 |
| 2026-03-28 12:00 |
17:22:44.93 |
-33:59:09.1 |
HIP 85046 |
10.26 |
| 2026-03-29 00:00 |
17:22:43.81 |
-33:59:19.5 |
HIP 85046 |
10.47 |
| 2026-03-29 12:00 |
17:22:42.65 |
-33:59:29.9 |
HIP 85046 |
10.69 |
| 2026-03-30 00:00 |
17:22:41.46 |
-33:59:40.3 |
HIP 85046 |
10.91 |
| 2026-03-30 12:00 |
17:22:40.23 |
-33:59:50.6 |
HIP 85046 |
11.14 |
| 2026-03-31 00:00 |
17:22:38.97 |
-34:00:00.8 |
HIP 85046 |
11.37 |
| 2026-03-31 12:00 |
17:22:37.67 |
-34:00:11.0 |
HIP 85046 |
11.60 |
| 2026-04-01 00:00 |
17:22:36.33 |
-34:00:21.2 |
HIP 85046 |
11.85 |
| 2026-04-01 12:00 |
17:22:34.97 |
-34:00:31.3 |
HIP 85046 |
12.09 |
| 2026-04-02 00:00 |
17:22:33.56 |
-34:00:41.3 |
HIP 85046 |
12.35 |
| 2026-04-02 12:00 |
17:22:32.12 |
-34:00:51.3 |
HIP 85046 |
12.60 |
| 2026-04-03 00:00 |
17:22:30.65 |
-34:01:01.3 |
HIP 85046 |
12.87 |
| 2026-04-03 12:00 |
17:22:29.14 |
-34:01:11.1 |
HIP 85046 |
13.14 |
| 2026-04-04 00:00 |
17:22:27.60 |
-34:01:21.0 |
HIP 85046 |
13.41 |
| 2026-04-04 12:00 |
17:22:26.02 |
-34:01:30.7 |
HIP 85046 |
13.69 |
| 2026-04-05 00:00 |
17:22:24.41 |
-34:01:40.4 |
HIP 85046 |
13.98 |
| 2026-04-05 12:00 |
17:22:22.77 |
-34:01:50.1 |
HIP 85046 |
14.28 |
| 2026-04-06 00:00 |
17:22:21.09 |
-34:01:59.7 |
HIP 85046 |
14.58 |
| 2026-04-06 12:00 |
17:22:19.38 |
-34:02:09.2 |
HIP 85046 |
14.88 |
| 2026-04-07 00:00 |
17:22:17.63 |
-34:02:18.7 |
HIP 85046 |
15.19 |
| 2026-04-07 12:00 |
17:22:15.85 |
-34:02:28.1 |
HIP 85046 |
15.51 |
| 2026-04-08 00:00 |
17:22:14.03 |
-34:02:37.5 |
HIP 85046 |
15.84 |
| 2026-04-08 12:00 |
17:22:12.18 |
-34:02:46.8 |
HIP 85046 |
16.17 |
| 2026-04-09 00:00 |
17:22:10.30 |
-34:02:56.0 |
HIP 85046 |
16.51 |
| 2026-04-09 12:00 |
17:22:08.39 |
-34:03:05.2 |
HIP 85046 |
16.85 |
| 2026-04-10 00:00 |
17:22:06.44 |
-34:03:14.3 |
HIP 85046 |
17.21 |
| 2026-04-10 12:00 |
17:22:04.46 |
-34:03:23.4 |
HIP 85046 |
17.56 |
| 2026-04-11 00:00 |
17:22:02.44 |
-34:03:32.3 |
HIP 85046 |
17.93 |
| 2026-04-11 12:00 |
17:22:00.40 |
-34:03:41.3 |
HIP 85046 |
18.30 |
| 2026-04-12 00:00 |
17:21:58.32 |
-34:03:50.1 |
HIP 85046 |
18.68 |
| 2026-04-12 12:00 |
17:21:56.20 |
-34:03:58.9 |
HIP 84929 |
18.91 |
| 2026-04-13 00:00 |
17:21:54.06 |
-34:04:07.6 |
HIP 84929 |
18.62 |
| 2026-04-13 12:00 |
17:21:51.88 |
-34:04:16.2 |
HIP 84929 |
18.34 |
| 2026-04-14 00:00 |
17:21:49.67 |
-34:04:24.8 |
HIP 84929 |
18.06 |
| 2026-04-14 12:00 |
17:21:47.43 |
-34:04:33.3 |
HIP 84929 |
17.79 |
| 2026-04-15 00:00 |
17:21:45.16 |
-34:04:41.7 |
HIP 84929 |
17.54 |
| 2026-04-15 12:00 |
17:21:42.85 |
-34:04:50.1 |
HIP 84929 |
17.29 |
| 2026-04-16 00:00 |
17:21:40.51 |
-34:04:58.4 |
HIP 84929 |
17.05 |