메타데이터
| 항목 |
값 |
| Designation |
C/1939 B1 (Kozik-Peltier) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1939-02-06T20:30:18.336960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:05Z |
| Obs used |
53 |
| NEO |
- |
| M1 |
9.600 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1939-02-08.0000000 |
| e |
0.99545124 |
| q (au) |
0.716485 |
| a (au) |
157.511966 |
| i (deg) |
63.526389 |
| Ω (om, deg) |
289.609052 |
| ω (w, deg) |
169.024376 |
| M (ma, deg) |
0.000571 |
밝기
산란 + 전체 선형
$$
M_a = (8.530 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.530 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-1.000 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
18:56:23.80 |
-39:50:46.5 |
HIP 92942 |
7.33 |
| 2026-06-01 12:00 |
18:56:22.55 |
-39:50:50.4 |
HIP 92942 |
7.19 |
| 2026-06-02 00:00 |
18:56:21.30 |
-39:50:54.3 |
HIP 92942 |
7.05 |
| 2026-06-02 12:00 |
18:56:20.04 |
-39:50:58.2 |
HIP 92942 |
6.92 |
| 2026-06-03 00:00 |
18:56:18.77 |
-39:51:02.0 |
HIP 92942 |
6.79 |
| 2026-06-03 12:00 |
18:56:17.50 |
-39:51:05.8 |
HIP 92942 |
6.67 |
| 2026-06-04 00:00 |
18:56:16.22 |
-39:51:09.5 |
HIP 92942 |
6.56 |
| 2026-06-04 12:00 |
18:56:14.94 |
-39:51:13.3 |
HIP 92942 |
6.46 |
| 2026-06-05 00:00 |
18:56:13.65 |
-39:51:17.0 |
HIP 92942 |
6.36 |
| 2026-06-05 12:00 |
18:56:12.35 |
-39:51:20.6 |
HIP 92942 |
6.28 |
| 2026-06-06 00:00 |
18:56:11.04 |
-39:51:24.3 |
HIP 92942 |
6.20 |
| 2026-06-06 12:00 |
18:56:09.73 |
-39:51:27.9 |
HIP 92942 |
6.14 |
| 2026-06-07 00:00 |
18:56:08.42 |
-39:51:31.4 |
HIP 92942 |
6.09 |
| 2026-06-07 12:00 |
18:56:07.10 |
-39:51:35.0 |
HIP 92942 |
6.04 |
| 2026-06-08 00:00 |
18:56:05.77 |
-39:51:38.5 |
HIP 92942 |
6.01 |
| 2026-06-08 12:00 |
18:56:04.43 |
-39:51:41.9 |
HIP 92942 |
6.00 |
| 2026-06-09 00:00 |
18:56:03.10 |
-39:51:45.4 |
HIP 92942 |
5.99 |
| 2026-06-09 12:00 |
18:56:01.75 |
-39:51:48.8 |
HIP 92942 |
6.00 |
| 2026-06-10 00:00 |
18:56:00.40 |
-39:51:52.1 |
HIP 92942 |
6.01 |
| 2026-06-10 12:00 |
18:55:59.05 |
-39:51:55.5 |
HIP 92942 |
6.05 |
| 2026-06-11 00:00 |
18:55:57.68 |
-39:51:58.8 |
HIP 92942 |
6.09 |
| 2026-06-11 12:00 |
18:55:56.32 |
-39:52:02.0 |
HIP 92942 |
6.14 |
| 2026-06-12 00:00 |
18:55:54.95 |
-39:52:05.3 |
HIP 92942 |
6.21 |
| 2026-06-12 12:00 |
18:55:53.57 |
-39:52:08.5 |
HIP 92942 |
6.29 |
| 2026-06-13 00:00 |
18:55:52.19 |
-39:52:11.6 |
HIP 92942 |
6.38 |
| 2026-06-13 12:00 |
18:55:50.81 |
-39:52:14.7 |
HIP 92942 |
6.48 |
| 2026-06-14 00:00 |
18:55:49.42 |
-39:52:17.8 |
HIP 92942 |
6.60 |
| 2026-06-14 12:00 |
18:55:48.02 |
-39:52:20.9 |
HIP 92942 |
6.72 |
| 2026-06-15 00:00 |
18:55:46.62 |
-39:52:23.9 |
HIP 92942 |
6.85 |
| 2026-06-15 12:00 |
18:55:45.22 |
-39:52:26.9 |
HIP 92942 |
6.99 |
| 2026-06-16 00:00 |
18:55:43.81 |
-39:52:29.8 |
HIP 92942 |
7.14 |
| 2026-06-16 12:00 |
18:55:42.40 |
-39:52:32.7 |
HIP 92942 |
7.30 |
| 2026-06-17 00:00 |
18:55:40.99 |
-39:52:35.6 |
HIP 92942 |
7.47 |
| 2026-06-17 12:00 |
18:55:39.57 |
-39:52:38.4 |
HIP 92942 |
7.64 |
| 2026-06-18 00:00 |
18:55:38.14 |
-39:52:41.2 |
HIP 92942 |
7.82 |
| 2026-06-18 12:00 |
18:55:36.72 |
-39:52:43.9 |
HIP 92942 |
8.01 |
| 2026-06-19 00:00 |
18:55:35.29 |
-39:52:46.6 |
HIP 92942 |
8.20 |
| 2026-06-19 12:00 |
18:55:33.85 |
-39:52:49.3 |
HIP 92942 |
8.40 |
| 2026-06-20 00:00 |
18:55:32.42 |
-39:52:51.9 |
HIP 92942 |
8.60 |
| 2026-06-20 12:00 |
18:55:30.98 |
-39:52:54.5 |
HIP 92942 |
8.81 |
| 2026-06-21 00:00 |
18:55:29.54 |
-39:52:57.1 |
HIP 92942 |
9.02 |
| 2026-06-21 12:00 |
18:55:28.09 |
-39:52:59.6 |
HIP 92942 |
9.24 |
| 2026-06-22 00:00 |
18:55:26.64 |
-39:53:02.0 |
HIP 92942 |
9.46 |