C/1963 R1 (Pereyra)
메타데이터
| 항목 |
값 |
| Designation |
C/1963 R1 (Pereyra) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1963-08-23T23:19:43.055040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:17Z |
| Obs used |
12 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1963-10-25.0000000 |
| e |
0.99994492 |
| q (au) |
0.005021 |
| a (au) |
91.149463 |
| i (deg) |
144.594816 |
| Ω (om, deg) |
8.051859 |
| ω (w, deg) |
86.230920 |
| M (ma, deg) |
0.070252 |
밝기
산란 + 전체 선형
$$
M_a = (4.625 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
4.625 |
| n |
6.000 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
06:43:09.13 |
-12:42:18.9 |
HIP 32134 |
15.85 |
| 2026-02-03 12:00 |
06:43:07.82 |
-12:42:10.2 |
HIP 32134 |
15.84 |
| 2026-02-04 00:00 |
06:43:06.52 |
-12:42:01.5 |
HIP 32134 |
15.84 |
| 2026-02-04 12:00 |
06:43:05.23 |
-12:41:52.7 |
HIP 32134 |
15.84 |
| 2026-02-05 00:00 |
06:43:03.94 |
-12:41:43.8 |
HIP 32134 |
15.86 |
| 2026-02-05 12:00 |
06:43:02.66 |
-12:41:34.8 |
HIP 32134 |
15.89 |
| 2026-02-06 00:00 |
06:43:01.40 |
-12:41:25.7 |
HIP 32134 |
15.93 |
| 2026-02-06 12:00 |
06:43:00.14 |
-12:41:16.5 |
HIP 32134 |
15.97 |
| 2026-02-07 00:00 |
06:42:58.88 |
-12:41:07.2 |
HIP 32134 |
16.03 |
| 2026-02-07 12:00 |
06:42:57.64 |
-12:40:57.9 |
HIP 32134 |
16.09 |
| 2026-02-08 00:00 |
06:42:56.41 |
-12:40:48.5 |
HIP 32134 |
16.16 |
| 2026-02-08 12:00 |
06:42:55.18 |
-12:40:39.0 |
HIP 32134 |
16.24 |
| 2026-02-09 00:00 |
06:42:53.96 |
-12:40:29.4 |
HIP 32134 |
16.33 |
| 2026-02-09 12:00 |
06:42:52.76 |
-12:40:19.7 |
HIP 32134 |
16.43 |
| 2026-02-10 00:00 |
06:42:51.56 |
-12:40:10.0 |
HIP 32134 |
16.54 |
| 2026-02-10 12:00 |
06:42:50.37 |
-12:40:00.1 |
HIP 32134 |
16.65 |
| 2026-02-11 00:00 |
06:42:49.19 |
-12:39:50.2 |
HIP 32134 |
16.77 |
| 2026-02-11 12:00 |
06:42:48.02 |
-12:39:40.2 |
HIP 32134 |
16.90 |
| 2026-02-12 00:00 |
06:42:46.85 |
-12:39:30.2 |
HIP 32134 |
17.04 |
| 2026-02-12 12:00 |
06:42:45.70 |
-12:39:20.0 |
HIP 32134 |
17.18 |
| 2026-02-13 00:00 |
06:42:44.56 |
-12:39:09.8 |
HIP 32134 |
17.33 |
| 2026-02-13 12:00 |
06:42:43.43 |
-12:38:59.5 |
HIP 32134 |
17.48 |
| 2026-02-14 00:00 |
06:42:42.30 |
-12:38:49.1 |
HIP 32134 |
17.64 |
| 2026-02-14 12:00 |
06:42:41.19 |
-12:38:38.7 |
HIP 32134 |
17.81 |
| 2026-02-15 00:00 |
06:42:40.09 |
-12:38:28.2 |
HIP 32134 |
17.98 |
| 2026-02-15 12:00 |
06:42:38.99 |
-12:38:17.6 |
HIP 32134 |
18.16 |
| 2026-02-16 00:00 |
06:42:37.91 |
-12:38:06.9 |
HIP 32134 |
18.34 |
| 2026-02-16 12:00 |
06:42:36.84 |
-12:37:56.2 |
HIP 32134 |
18.53 |
| 2026-02-17 00:00 |
06:42:35.77 |
-12:37:45.4 |
HIP 32134 |
18.72 |
| 2026-02-17 12:00 |
06:42:34.72 |
-12:37:34.6 |
HIP 32134 |
18.91 |
| 2026-02-18 00:00 |
06:42:33.68 |
-12:37:23.6 |
HIP 32134 |
19.11 |
| 2026-02-18 12:00 |
06:42:32.65 |
-12:37:12.6 |
HIP 32134 |
19.32 |
| 2026-02-19 00:00 |
06:42:31.63 |
-12:37:01.6 |
HIP 32134 |
19.52 |
| 2026-02-19 12:00 |
06:42:30.62 |
-12:36:50.4 |
HIP 32134 |
19.73 |
| 2026-02-20 00:00 |
06:42:29.62 |
-12:36:39.3 |
HIP 32134 |
19.95 |
| 2026-02-20 12:00 |
06:42:28.63 |
-12:36:28.0 |
HIP 32134 |
20.16 |
| 2026-02-21 00:00 |
06:42:27.65 |
-12:36:16.7 |
HIP 32134 |
20.38 |
| 2026-02-21 12:00 |
06:42:26.69 |
-12:36:05.3 |
HIP 32134 |
20.61 |
| 2026-02-22 00:00 |
06:42:25.73 |
-12:35:53.9 |
HIP 32134 |
20.83 |
| 2026-02-22 12:00 |
06:42:24.79 |
-12:35:42.4 |
HIP 32134 |
21.06 |
| 2026-02-23 00:00 |
06:42:23.85 |
-12:35:30.8 |
HIP 32134 |
21.29 |
| 2026-02-23 12:00 |
06:42:22.93 |
-12:35:19.2 |
HIP 32134 |
21.52 |
| 2026-02-24 00:00 |
06:42:22.02 |
-12:35:07.6 |
HIP 32134 |
21.75 |