C/1951 C1 (Pajdusakova)
메타데이터
| 항목 |
값 |
| Designation |
C/1951 C1 (Pajdusakova) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1951-01-30T10:13:38.858880Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:09Z |
| Obs used |
17 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1951-03-17.0000000 |
| e |
1.00000000 |
| q (au) |
0.719061 |
| a (au) |
- |
| i (deg) |
87.896744 |
| Ω (om, deg) |
311.219655 |
| ω (w, deg) |
68.601740 |
| M (ma, deg) |
- |
밝기
산란 + 전체 선형
$$
M_a = (9.458 + 5.562\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.458 |
| n |
5.562 |
| gf |
0.999 |
| gb |
-0.881 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
07:52:03.63 |
-40:10:26.5 |
HIP 38369 |
7.76 |
| 2026-02-03 12:00 |
07:52:02.13 |
-40:10:20.3 |
HIP 38369 |
7.51 |
| 2026-02-04 00:00 |
07:52:00.63 |
-40:10:14.0 |
HIP 38369 |
7.26 |
| 2026-02-04 12:00 |
07:51:59.14 |
-40:10:07.5 |
HIP 38369 |
7.01 |
| 2026-02-05 00:00 |
07:51:57.66 |
-40:10:00.9 |
HIP 38369 |
6.77 |
| 2026-02-05 12:00 |
07:51:56.17 |
-40:09:54.2 |
HIP 38369 |
6.53 |
| 2026-02-06 00:00 |
07:51:54.69 |
-40:09:47.3 |
HIP 38369 |
6.29 |
| 2026-02-06 12:00 |
07:51:53.22 |
-40:09:40.3 |
HIP 38369 |
6.06 |
| 2026-02-07 00:00 |
07:51:51.75 |
-40:09:33.2 |
HIP 38369 |
5.84 |
| 2026-02-07 12:00 |
07:51:50.29 |
-40:09:26.0 |
HIP 38369 |
5.62 |
| 2026-02-08 00:00 |
07:51:48.83 |
-40:09:18.6 |
HIP 38369 |
5.41 |
| 2026-02-08 12:00 |
07:51:47.38 |
-40:09:11.1 |
HIP 38369 |
5.20 |
| 2026-02-09 00:00 |
07:51:45.93 |
-40:09:03.5 |
HIP 38369 |
5.01 |
| 2026-02-09 12:00 |
07:51:44.49 |
-40:08:55.8 |
HIP 38369 |
4.82 |
| 2026-02-10 00:00 |
07:51:43.06 |
-40:08:47.9 |
HIP 38369 |
4.65 |
| 2026-02-10 12:00 |
07:51:41.63 |
-40:08:40.0 |
HIP 38369 |
4.48 |
| 2026-02-11 00:00 |
07:51:40.21 |
-40:08:31.9 |
HIP 38369 |
4.33 |
| 2026-02-11 12:00 |
07:51:38.79 |
-40:08:23.6 |
HIP 38369 |
4.19 |
| 2026-02-12 00:00 |
07:51:37.38 |
-40:08:15.3 |
HIP 38369 |
4.07 |
| 2026-02-12 12:00 |
07:51:35.97 |
-40:08:06.8 |
HIP 38369 |
3.97 |
| 2026-02-13 00:00 |
07:51:34.57 |
-40:07:58.3 |
HIP 38369 |
3.88 |
| 2026-02-13 12:00 |
07:51:33.18 |
-40:07:49.6 |
HIP 38369 |
3.82 |
| 2026-02-14 00:00 |
07:51:31.80 |
-40:07:40.8 |
HIP 38369 |
3.78 |
| 2026-02-14 12:00 |
07:51:30.42 |
-40:07:31.8 |
HIP 38369 |
3.75 |
| 2026-02-15 00:00 |
07:51:29.05 |
-40:07:22.8 |
HIP 38369 |
3.75 |
| 2026-02-15 12:00 |
07:51:27.68 |
-40:07:13.6 |
HIP 38369 |
3.78 |
| 2026-02-16 00:00 |
07:51:26.32 |
-40:07:04.4 |
HIP 38369 |
3.82 |
| 2026-02-16 12:00 |
07:51:24.97 |
-40:06:55.0 |
HIP 38369 |
3.89 |
| 2026-02-17 00:00 |
07:51:23.63 |
-40:06:45.5 |
HIP 38369 |
3.97 |
| 2026-02-17 12:00 |
07:51:22.29 |
-40:06:35.9 |
HIP 38369 |
4.07 |
| 2026-02-18 00:00 |
07:51:20.97 |
-40:06:26.2 |
HIP 38369 |
4.19 |
| 2026-02-18 12:00 |
07:51:19.65 |
-40:06:16.3 |
HIP 38369 |
4.33 |
| 2026-02-19 00:00 |
07:51:18.33 |
-40:06:06.4 |
HIP 38369 |
4.48 |
| 2026-02-19 12:00 |
07:51:17.03 |
-40:05:56.4 |
HIP 38369 |
4.64 |
| 2026-02-20 00:00 |
07:51:15.73 |
-40:05:46.2 |
HIP 38369 |
4.81 |
| 2026-02-20 12:00 |
07:51:14.44 |
-40:05:36.0 |
HIP 38369 |
4.99 |
| 2026-02-21 00:00 |
07:51:13.16 |
-40:05:25.6 |
HIP 38369 |
5.19 |
| 2026-02-21 12:00 |
07:51:11.89 |
-40:05:15.1 |
HIP 38369 |
5.39 |
| 2026-02-22 00:00 |
07:51:10.63 |
-40:05:04.6 |
HIP 38369 |
5.59 |
| 2026-02-22 12:00 |
07:51:09.37 |
-40:04:53.9 |
HIP 38369 |
5.81 |
| 2026-02-23 00:00 |
07:51:08.12 |
-40:04:43.1 |
HIP 38369 |
6.03 |
| 2026-02-23 12:00 |
07:51:06.89 |
-40:04:32.2 |
HIP 38369 |
6.25 |
| 2026-02-24 00:00 |
07:51:05.66 |
-40:04:21.3 |
HIP 38369 |
6.48 |