메타데이터
| 항목 |
값 |
| Designation |
C/1980 V1 (Meier) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1980-12-09T15:31:46.606080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:29Z |
| Obs used |
61 |
| NEO |
- |
| M1 |
7.200 |
| K1 |
10.250 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1981-01-14.0000000 |
| e |
0.99459747 |
| q (au) |
1.519494 |
| a (au) |
281.256043 |
| i (deg) |
100.985508 |
| Ω (om, deg) |
25.436876 |
| ω (w, deg) |
87.964495 |
| M (ma, deg) |
0.007387 |
밝기
산란 + 전체 선형
$$
M_a = (6.541 + 3.275\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.541 |
| n |
3.275 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
1.000 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
08:43:32.31 |
-57:00:00.2 |
HIP 42749 |
13.75 |
| 2026-06-01 12:00 |
08:43:33.82 |
-56:59:40.1 |
HIP 42749 |
14.14 |
| 2026-06-02 00:00 |
08:43:35.36 |
-56:59:20.0 |
HIP 42749 |
14.54 |
| 2026-06-02 12:00 |
08:43:36.91 |
-56:59:00.1 |
HIP 42749 |
14.93 |
| 2026-06-03 00:00 |
08:43:38.49 |
-56:58:40.2 |
HIP 42749 |
15.32 |
| 2026-06-03 12:00 |
08:43:40.08 |
-56:58:20.6 |
HIP 42749 |
15.71 |
| 2026-06-04 00:00 |
08:43:41.70 |
-56:58:01.0 |
HIP 42749 |
16.10 |
| 2026-06-04 12:00 |
08:43:43.34 |
-56:57:41.6 |
HIP 42749 |
16.49 |
| 2026-06-05 00:00 |
08:43:45.00 |
-56:57:22.3 |
HIP 42749 |
16.89 |
| 2026-06-05 12:00 |
08:43:46.67 |
-56:57:03.2 |
HIP 42749 |
17.28 |
| 2026-06-06 00:00 |
08:43:48.37 |
-56:56:44.1 |
HIP 42749 |
17.66 |
| 2026-06-06 12:00 |
08:43:50.09 |
-56:56:25.3 |
HIP 42749 |
18.05 |
| 2026-06-07 00:00 |
08:43:51.83 |
-56:56:06.5 |
HIP 42749 |
18.44 |
| 2026-06-07 12:00 |
08:43:53.59 |
-56:55:47.9 |
HIP 42749 |
18.83 |
| 2026-06-08 00:00 |
08:43:55.36 |
-56:55:29.5 |
HIP 42749 |
19.22 |
| 2026-06-08 12:00 |
08:43:57.16 |
-56:55:11.1 |
HIP 42749 |
19.60 |
| 2026-06-09 00:00 |
08:43:58.98 |
-56:54:53.0 |
HIP 42749 |
19.99 |
| 2026-06-09 12:00 |
08:44:00.81 |
-56:54:34.9 |
HIP 42749 |
20.38 |
| 2026-06-10 00:00 |
08:44:02.67 |
-56:54:17.0 |
HIP 42749 |
20.76 |
| 2026-06-10 12:00 |
08:44:04.54 |
-56:53:59.3 |
HIP 42749 |
21.15 |
| 2026-06-11 00:00 |
08:44:06.43 |
-56:53:41.7 |
HIP 42749 |
21.53 |
| 2026-06-11 12:00 |
08:44:08.34 |
-56:53:24.3 |
HIP 42749 |
21.91 |
| 2026-06-12 00:00 |
08:44:10.27 |
-56:53:07.0 |
HIP 43105 |
21.95 |
| 2026-06-12 12:00 |
08:44:12.22 |
-56:52:49.8 |
HIP 43105 |
21.61 |
| 2026-06-13 00:00 |
08:44:14.19 |
-56:52:32.9 |
HIP 43105 |
21.27 |
| 2026-06-13 12:00 |
08:44:16.17 |
-56:52:16.0 |
HIP 43105 |
20.93 |
| 2026-06-14 00:00 |
08:44:18.18 |
-56:51:59.4 |
HIP 43105 |
20.59 |
| 2026-06-14 12:00 |
08:44:20.20 |
-56:51:42.8 |
HIP 43105 |
20.25 |
| 2026-06-15 00:00 |
08:44:22.23 |
-56:51:26.5 |
HIP 43105 |
19.91 |
| 2026-06-15 12:00 |
08:44:24.29 |
-56:51:10.3 |
HIP 43105 |
19.57 |
| 2026-06-16 00:00 |
08:44:26.36 |
-56:50:54.2 |
HIP 43105 |
19.23 |
| 2026-06-16 12:00 |
08:44:28.45 |
-56:50:38.4 |
HIP 43105 |
18.89 |
| 2026-06-17 00:00 |
08:44:30.56 |
-56:50:22.7 |
HIP 43105 |
18.55 |
| 2026-06-17 12:00 |
08:44:32.68 |
-56:50:07.1 |
HIP 43105 |
18.21 |
| 2026-06-18 00:00 |
08:44:34.82 |
-56:49:51.7 |
HIP 43105 |
17.87 |
| 2026-06-18 12:00 |
08:44:36.98 |
-56:49:36.5 |
HIP 43105 |
17.53 |
| 2026-06-19 00:00 |
08:44:39.15 |
-56:49:21.5 |
HIP 43105 |
17.19 |
| 2026-06-19 12:00 |
08:44:41.34 |
-56:49:06.6 |
HIP 43105 |
16.85 |
| 2026-06-20 00:00 |
08:44:43.55 |
-56:48:51.9 |
HIP 43105 |
16.51 |
| 2026-06-20 12:00 |
08:44:45.77 |
-56:48:37.3 |
HIP 43105 |
16.18 |
| 2026-06-21 00:00 |
08:44:48.00 |
-56:48:22.9 |
HIP 43105 |
15.84 |
| 2026-06-21 12:00 |
08:44:50.26 |
-56:48:08.7 |
HIP 43105 |
15.50 |
| 2026-06-22 00:00 |
08:44:52.52 |
-56:47:54.7 |
HIP 43105 |
15.17 |