메타데이터
| 항목 |
값 |
| Designation |
D/1952 B1 (Harrington-Wilson) |
| Type |
D |
| Perihelion (tp_cal, UTC) |
1951-10-30T08:59:55.049280Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:10Z |
| Obs used |
7 |
| NEO |
- |
| M1 |
14.000 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1952-02-16.0000000 |
| e |
0.51432703 |
| q (au) |
1.664907 |
| a (au) |
3.428041 |
| i (deg) |
16.352402 |
| Ω (om, deg) |
128.478048 |
| ω (w, deg) |
343.034254 |
| M (ma, deg) |
16.868061 |
밝기
산란 + 전체 선형
$$
M_a = (H_0 + n\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
- |
| n |
- |
| gf |
- |
| gb |
- |
| k |
- |
| δ90 |
- |
| 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) |
| 2026-03-26 00:00 |
21:48:19.83 |
-17:17:55.5 |
HIP 107594 |
10.36 |
| 2026-03-26 12:00 |
21:48:43.63 |
-17:16:33.0 |
HIP 107594 |
16.08 |
| 2026-03-27 00:00 |
21:49:07.36 |
-17:15:10.8 |
HIP 107594 |
21.85 |
| 2026-03-27 12:00 |
21:49:31.02 |
-17:13:49.0 |
HIP 107797 |
25.20 |
| 2026-03-28 00:00 |
21:49:54.60 |
-17:12:27.6 |
HIP 107797 |
22.21 |
| 2026-03-28 12:00 |
21:50:18.11 |
-17:11:06.7 |
HIP 107797 |
20.45 |
| 2026-03-29 00:00 |
21:50:41.55 |
-17:09:46.2 |
HIP 107797 |
20.26 |
| 2026-03-29 12:00 |
21:51:04.91 |
-17:08:26.0 |
HIP 107797 |
21.66 |
| 2026-03-30 00:00 |
21:51:28.20 |
-17:07:06.4 |
HIP 107991 |
17.82 |
| 2026-03-30 12:00 |
21:51:51.41 |
-17:05:47.1 |
HIP 107991 |
12.13 |
| 2026-03-31 00:00 |
21:52:14.55 |
-17:04:28.3 |
HIP 107991 |
6.49 |
| 2026-03-31 12:00 |
21:52:37.61 |
-17:03:10.0 |
HIP 107991 |
1.27 |
| 2026-04-01 00:00 |
21:53:00.59 |
-17:01:52.1 |
HIP 107991 |
5.01 |
| 2026-04-01 12:00 |
21:53:23.50 |
-17:00:34.7 |
HIP 107991 |
10.58 |
| 2026-04-02 00:00 |
21:53:46.32 |
-16:59:17.7 |
HIP 108095 |
11.20 |
| 2026-04-02 12:00 |
21:54:09.07 |
-16:58:01.2 |
HIP 108095 |
11.73 |
| 2026-04-03 00:00 |
21:54:31.74 |
-16:56:45.2 |
HIP 108095 |
14.55 |
| 2026-04-03 12:00 |
21:54:54.32 |
-16:55:29.7 |
HIP 108095 |
18.63 |
| 2026-04-04 00:00 |
21:55:16.83 |
-16:54:14.6 |
HIP 108095 |
23.31 |
| 2026-04-04 12:00 |
21:55:39.25 |
-16:53:00.1 |
HIP 108095 |
28.27 |
| 2026-04-05 00:00 |
21:56:01.59 |
-16:51:46.1 |
HIP 108095 |
33.38 |
| 2026-04-05 12:00 |
21:56:23.84 |
-16:50:32.6 |
HIP 108095 |
38.57 |
| 2026-04-06 00:00 |
21:56:46.02 |
-16:49:19.6 |
HIP 108095 |
43.80 |
| 2026-04-06 12:00 |
21:57:08.10 |
-16:48:07.1 |
HIP 108560 |
44.88 |
| 2026-04-07 00:00 |
21:57:30.10 |
-16:46:55.2 |
HIP 108560 |
42.08 |
| 2026-04-07 12:00 |
21:57:52.02 |
-16:45:43.8 |
HIP 108560 |
39.82 |
| 2026-04-08 00:00 |
21:58:13.84 |
-16:44:32.9 |
HIP 108560 |
38.18 |
| 2026-04-08 12:00 |
21:58:35.58 |
-16:43:22.6 |
HIP 108560 |
37.25 |
| 2026-04-09 00:00 |
21:58:57.23 |
-16:42:12.9 |
HIP 108560 |
37.05 |
| 2026-04-09 12:00 |
21:59:18.79 |
-16:41:03.7 |
HIP 108560 |
37.61 |
| 2026-04-10 00:00 |
21:59:40.26 |
-16:39:55.1 |
HIP 108560 |
38.87 |
| 2026-04-10 12:00 |
22:00:01.64 |
-16:38:47.1 |
HIP 108797 |
39.53 |
| 2026-04-11 00:00 |
22:00:22.92 |
-16:37:39.7 |
HIP 108797 |
35.78 |
| 2026-04-11 12:00 |
22:00:44.11 |
-16:36:32.9 |
HIP 108797 |
32.45 |
| 2026-04-12 00:00 |
22:01:05.21 |
-16:35:26.6 |
HIP 108797 |
29.67 |
| 2026-04-12 12:00 |
22:01:26.22 |
-16:34:21.1 |
HIP 108876 |
27.38 |
| 2026-04-13 00:00 |
22:01:47.12 |
-16:33:16.1 |
HIP 108876 |
22.60 |
| 2026-04-13 12:00 |
22:02:07.93 |
-16:32:11.7 |
HIP 108876 |
18.02 |
| 2026-04-14 00:00 |
22:02:28.65 |
-16:31:08.0 |
HIP 108876 |
13.83 |
| 2026-04-14 12:00 |
22:02:49.26 |
-16:30:05.0 |
HIP 108876 |
10.47 |
| 2026-04-15 00:00 |
22:03:09.78 |
-16:29:02.5 |
HIP 108876 |
8.87 |
| 2026-04-15 12:00 |
22:03:30.19 |
-16:28:00.8 |
HIP 108876 |
9.90 |
| 2026-04-16 00:00 |
22:03:50.51 |
-16:26:59.7 |
HIP 108876 |
12.91 |