C/1935 A1 (Johnson)
메타데이터
| 항목 |
값 |
| Designation |
C/1935 A1 (Johnson) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1935-02-26T11:16:10.096320Z |
| Orbit solution date (soln_date, UTC) |
2023-12-04T20:32:30Z |
| Obs used |
34 |
| NEO |
- |
| M1 |
11.200 |
| K1 |
26.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1935-02-28.0000000 |
| e |
0.99129724 |
| q (au) |
0.811142 |
| a (au) |
93.205234 |
| i (deg) |
65.423637 |
| Ω (om, deg) |
92.444706 |
| ω (w, deg) |
18.398934 |
| M (ma, deg) |
0.001676 |
밝기
산란 + 전체 선형
$$
M_a = (10.632 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.632 |
| n |
6.000 |
| gf |
0.800 |
| gb |
-0.750 |
| k |
0.800 |
| δ90 |
1.066 |
| 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 |
18:35:31.33 |
-33:36:17.2 |
HIP 91218 |
13.29 |
| 2026-02-03 12:00 |
18:35:32.53 |
-33:36:18.5 |
HIP 91218 |
13.06 |
| 2026-02-04 00:00 |
18:35:33.73 |
-33:36:19.7 |
HIP 91218 |
12.83 |
| 2026-02-04 12:00 |
18:35:34.92 |
-33:36:21.0 |
HIP 91218 |
12.61 |
| 2026-02-05 00:00 |
18:35:36.10 |
-33:36:22.3 |
HIP 91218 |
12.38 |
| 2026-02-05 12:00 |
18:35:37.27 |
-33:36:23.7 |
HIP 91218 |
12.16 |
| 2026-02-06 00:00 |
18:35:38.44 |
-33:36:25.1 |
HIP 91218 |
11.94 |
| 2026-02-06 12:00 |
18:35:39.59 |
-33:36:26.5 |
HIP 91218 |
11.72 |
| 2026-02-07 00:00 |
18:35:40.74 |
-33:36:27.9 |
HIP 91218 |
11.50 |
| 2026-02-07 12:00 |
18:35:41.89 |
-33:36:29.3 |
HIP 91218 |
11.28 |
| 2026-02-08 00:00 |
18:35:43.02 |
-33:36:30.8 |
HIP 91218 |
11.07 |
| 2026-02-08 12:00 |
18:35:44.14 |
-33:36:32.3 |
HIP 91218 |
10.86 |
| 2026-02-09 00:00 |
18:35:45.26 |
-33:36:33.9 |
HIP 91218 |
10.65 |
| 2026-02-09 12:00 |
18:35:46.37 |
-33:36:35.5 |
HIP 91218 |
10.44 |
| 2026-02-10 00:00 |
18:35:47.47 |
-33:36:37.0 |
HIP 91218 |
10.24 |
| 2026-02-10 12:00 |
18:35:48.56 |
-33:36:38.7 |
HIP 91218 |
10.04 |
| 2026-02-11 00:00 |
18:35:49.65 |
-33:36:40.3 |
HIP 91218 |
9.84 |
| 2026-02-11 12:00 |
18:35:50.72 |
-33:36:42.0 |
HIP 91218 |
9.64 |
| 2026-02-12 00:00 |
18:35:51.79 |
-33:36:43.7 |
HIP 91218 |
9.45 |
| 2026-02-12 12:00 |
18:35:52.84 |
-33:36:45.4 |
HIP 91218 |
9.26 |
| 2026-02-13 00:00 |
18:35:53.89 |
-33:36:47.2 |
HIP 91218 |
9.07 |
| 2026-02-13 12:00 |
18:35:54.93 |
-33:36:49.0 |
HIP 91218 |
8.88 |
| 2026-02-14 00:00 |
18:35:55.96 |
-33:36:50.8 |
HIP 91218 |
8.69 |
| 2026-02-14 12:00 |
18:35:56.98 |
-33:36:52.6 |
HIP 91218 |
8.51 |
| 2026-02-15 00:00 |
18:35:57.99 |
-33:36:54.5 |
HIP 91218 |
8.33 |
| 2026-02-15 12:00 |
18:35:58.99 |
-33:36:56.4 |
HIP 91218 |
8.16 |
| 2026-02-16 00:00 |
18:35:59.99 |
-33:36:58.3 |
HIP 91218 |
7.98 |
| 2026-02-16 12:00 |
18:36:00.97 |
-33:37:00.3 |
HIP 91218 |
7.81 |
| 2026-02-17 00:00 |
18:36:01.94 |
-33:37:02.2 |
HIP 91218 |
7.64 |
| 2026-02-17 12:00 |
18:36:02.91 |
-33:37:04.2 |
HIP 91218 |
7.48 |
| 2026-02-18 00:00 |
18:36:03.86 |
-33:37:06.2 |
HIP 91218 |
7.32 |
| 2026-02-18 12:00 |
18:36:04.81 |
-33:37:08.3 |
HIP 91218 |
7.16 |
| 2026-02-19 00:00 |
18:36:05.74 |
-33:37:10.4 |
HIP 91218 |
7.00 |
| 2026-02-19 12:00 |
18:36:06.67 |
-33:37:12.5 |
HIP 91218 |
6.85 |
| 2026-02-20 00:00 |
18:36:07.58 |
-33:37:14.6 |
HIP 91218 |
6.70 |
| 2026-02-20 12:00 |
18:36:08.49 |
-33:37:16.7 |
HIP 91218 |
6.56 |
| 2026-02-21 00:00 |
18:36:09.38 |
-33:37:18.9 |
HIP 91218 |
6.41 |
| 2026-02-21 12:00 |
18:36:10.26 |
-33:37:21.1 |
HIP 91218 |
6.27 |
| 2026-02-22 00:00 |
18:36:11.14 |
-33:37:23.4 |
HIP 91218 |
6.14 |
| 2026-02-22 12:00 |
18:36:12.00 |
-33:37:25.6 |
HIP 91218 |
6.01 |
| 2026-02-23 00:00 |
18:36:12.85 |
-33:37:27.9 |
HIP 91218 |
5.88 |
| 2026-02-23 12:00 |
18:36:13.70 |
-33:37:30.2 |
HIP 91218 |
5.75 |
| 2026-02-24 00:00 |
18:36:14.53 |
-33:37:32.5 |
HIP 91218 |
5.63 |