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 |
1.000 |
| 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) |
| 2026-06-01 00:00 |
07:50:47.56 |
-39:19:56.4 |
HIP 38250 |
16.89 |
| 2026-06-01 12:00 |
07:50:48.59 |
-39:19:46.8 |
HIP 38250 |
16.84 |
| 2026-06-02 00:00 |
07:50:49.64 |
-39:19:37.3 |
HIP 38250 |
16.79 |
| 2026-06-02 12:00 |
07:50:50.69 |
-39:19:27.9 |
HIP 38250 |
16.76 |
| 2026-06-03 00:00 |
07:50:51.75 |
-39:19:18.5 |
HIP 38250 |
16.72 |
| 2026-06-03 12:00 |
07:50:52.82 |
-39:19:09.3 |
HIP 38250 |
16.70 |
| 2026-06-04 00:00 |
07:50:53.90 |
-39:19:00.2 |
HIP 38250 |
16.68 |
| 2026-06-04 12:00 |
07:50:54.99 |
-39:18:51.2 |
HIP 38250 |
16.66 |
| 2026-06-05 00:00 |
07:50:56.09 |
-39:18:42.3 |
HIP 38250 |
16.66 |
| 2026-06-05 12:00 |
07:50:57.19 |
-39:18:33.4 |
HIP 38250 |
16.66 |
| 2026-06-06 00:00 |
07:50:58.30 |
-39:18:24.7 |
HIP 38250 |
16.66 |
| 2026-06-06 12:00 |
07:50:59.42 |
-39:18:16.2 |
HIP 38250 |
16.68 |
| 2026-06-07 00:00 |
07:51:00.55 |
-39:18:07.7 |
HIP 38250 |
16.69 |
| 2026-06-07 12:00 |
07:51:01.69 |
-39:17:59.3 |
HIP 38250 |
16.72 |
| 2026-06-08 00:00 |
07:51:02.83 |
-39:17:51.0 |
HIP 38250 |
16.75 |
| 2026-06-08 12:00 |
07:51:03.98 |
-39:17:42.9 |
HIP 38250 |
16.79 |
| 2026-06-09 00:00 |
07:51:05.14 |
-39:17:34.8 |
HIP 38250 |
16.83 |
| 2026-06-09 12:00 |
07:51:06.31 |
-39:17:26.9 |
HIP 38250 |
16.88 |
| 2026-06-10 00:00 |
07:51:07.48 |
-39:17:19.0 |
HIP 38250 |
16.94 |
| 2026-06-10 12:00 |
07:51:08.67 |
-39:17:11.3 |
HIP 38250 |
17.00 |
| 2026-06-11 00:00 |
07:51:09.86 |
-39:17:03.7 |
HIP 38250 |
17.07 |
| 2026-06-11 12:00 |
07:51:11.05 |
-39:16:56.2 |
HIP 38250 |
17.15 |
| 2026-06-12 00:00 |
07:51:12.26 |
-39:16:48.8 |
HIP 38250 |
17.23 |
| 2026-06-12 12:00 |
07:51:13.47 |
-39:16:41.6 |
HIP 38250 |
17.31 |
| 2026-06-13 00:00 |
07:51:14.69 |
-39:16:34.4 |
HIP 38250 |
17.41 |
| 2026-06-13 12:00 |
07:51:15.91 |
-39:16:27.4 |
HIP 38250 |
17.51 |
| 2026-06-14 00:00 |
07:51:17.15 |
-39:16:20.5 |
HIP 38250 |
17.61 |
| 2026-06-14 12:00 |
07:51:18.38 |
-39:16:13.7 |
HIP 38250 |
17.72 |
| 2026-06-15 00:00 |
07:51:19.63 |
-39:16:07.0 |
HIP 38250 |
17.84 |
| 2026-06-15 12:00 |
07:51:20.88 |
-39:16:00.4 |
HIP 38250 |
17.96 |
| 2026-06-16 00:00 |
07:51:22.14 |
-39:15:53.9 |
HIP 38476 |
17.76 |
| 2026-06-16 12:00 |
07:51:23.41 |
-39:15:47.6 |
HIP 38476 |
17.56 |
| 2026-06-17 00:00 |
07:51:24.68 |
-39:15:41.4 |
HIP 38476 |
17.36 |
| 2026-06-17 12:00 |
07:51:25.96 |
-39:15:35.3 |
HIP 38476 |
17.16 |
| 2026-06-18 00:00 |
07:51:27.24 |
-39:15:29.3 |
HIP 38476 |
16.96 |
| 2026-06-18 12:00 |
07:51:28.53 |
-39:15:23.4 |
HIP 38476 |
16.76 |
| 2026-06-19 00:00 |
07:51:29.82 |
-39:15:17.7 |
HIP 38476 |
16.56 |
| 2026-06-19 12:00 |
07:51:31.13 |
-39:15:12.1 |
HIP 38476 |
16.36 |
| 2026-06-20 00:00 |
07:51:32.43 |
-39:15:06.6 |
HIP 38476 |
16.16 |
| 2026-06-20 12:00 |
07:51:33.75 |
-39:15:01.2 |
HIP 38476 |
15.96 |
| 2026-06-21 00:00 |
07:51:35.06 |
-39:14:56.0 |
HIP 38476 |
15.76 |
| 2026-06-21 12:00 |
07:51:36.39 |
-39:14:50.8 |
HIP 38476 |
15.56 |
| 2026-06-22 00:00 |
07:51:37.72 |
-39:14:45.8 |
HIP 38476 |
15.36 |