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) |
| 2026-05-12 00:00 |
22:18:46.45 |
-15:52:23.9 |
HIP 110054 |
20.10 |
| 2026-05-12 12:00 |
22:19:00.19 |
-15:52:08.6 |
HIP 110054 |
23.33 |
| 2026-05-13 00:00 |
22:19:13.77 |
-15:51:54.3 |
HIP 110054 |
26.54 |
| 2026-05-13 12:00 |
22:19:27.21 |
-15:51:41.1 |
HIP 110054 |
29.72 |
| 2026-05-14 00:00 |
22:19:40.49 |
-15:51:29.0 |
HIP 110176 |
31.94 |
| 2026-05-14 12:00 |
22:19:53.62 |
-15:51:18.0 |
HIP 110176 |
33.21 |
| 2026-05-15 00:00 |
22:20:06.60 |
-15:51:08.1 |
HIP 110176 |
34.70 |
| 2026-05-15 12:00 |
22:20:19.42 |
-15:50:59.3 |
HIP 110176 |
36.35 |
| 2026-05-16 00:00 |
22:20:32.08 |
-15:50:51.6 |
HIP 110454 |
35.67 |
| 2026-05-16 12:00 |
22:20:44.59 |
-15:50:45.0 |
HIP 110454 |
33.41 |
| 2026-05-17 00:00 |
22:20:56.94 |
-15:50:39.6 |
HIP 110454 |
31.32 |
| 2026-05-17 12:00 |
22:21:09.13 |
-15:50:35.3 |
HIP 110454 |
29.41 |
| 2026-05-18 00:00 |
22:21:21.16 |
-15:50:32.1 |
HIP 110454 |
27.73 |
| 2026-05-18 12:00 |
22:21:33.02 |
-15:50:30.1 |
HIP 110454 |
26.29 |
| 2026-05-19 00:00 |
22:21:44.73 |
-15:50:29.3 |
HIP 110454 |
25.12 |
| 2026-05-19 12:00 |
22:21:56.27 |
-15:50:29.6 |
HIP 110454 |
24.26 |
| 2026-05-20 00:00 |
22:22:07.65 |
-15:50:31.1 |
HIP 110537 |
21.84 |
| 2026-05-20 12:00 |
22:22:18.86 |
-15:50:33.7 |
HIP 110537 |
19.32 |
| 2026-05-21 00:00 |
22:22:29.91 |
-15:50:37.6 |
HIP 110537 |
16.87 |
| 2026-05-21 12:00 |
22:22:40.78 |
-15:50:42.6 |
HIP 110537 |
14.51 |
| 2026-05-22 00:00 |
22:22:51.49 |
-15:50:48.8 |
HIP 110537 |
12.29 |
| 2026-05-22 12:00 |
22:23:02.04 |
-15:50:56.2 |
HIP 110537 |
10.25 |
| 2026-05-23 00:00 |
22:23:12.41 |
-15:51:04.9 |
HIP 110537 |
8.49 |
| 2026-05-23 12:00 |
22:23:22.61 |
-15:51:14.7 |
HIP 110537 |
7.18 |
| 2026-05-24 00:00 |
22:23:32.64 |
-15:51:25.7 |
HIP 110537 |
6.54 |
| 2026-05-24 12:00 |
22:23:42.50 |
-15:51:38.0 |
HIP 110537 |
6.73 |
| 2026-05-25 00:00 |
22:23:52.18 |
-15:51:51.5 |
HIP 110537 |
7.65 |
| 2026-05-25 12:00 |
22:24:01.69 |
-15:52:06.2 |
HIP 110537 |
9.05 |
| 2026-05-26 00:00 |
22:24:11.03 |
-15:52:22.1 |
HIP 110537 |
10.71 |
| 2026-05-26 12:00 |
22:24:20.18 |
-15:52:39.3 |
HIP 110537 |
12.52 |
| 2026-05-27 00:00 |
22:24:29.17 |
-15:52:57.8 |
HIP 110537 |
14.39 |
| 2026-05-27 12:00 |
22:24:37.97 |
-15:53:17.5 |
HIP 110537 |
16.29 |
| 2026-05-28 00:00 |
22:24:46.60 |
-15:53:38.4 |
HIP 110537 |
18.20 |
| 2026-05-28 12:00 |
22:24:55.04 |
-15:54:00.6 |
HIP 110689 |
20.06 |
| 2026-05-29 00:00 |
22:25:03.31 |
-15:54:24.1 |
HIP 110689 |
19.65 |
| 2026-05-29 12:00 |
22:25:11.39 |
-15:54:48.9 |
HIP 110689 |
19.48 |
| 2026-05-30 00:00 |
22:25:19.29 |
-15:55:14.9 |
HIP 110689 |
19.53 |
| 2026-05-30 12:00 |
22:25:27.01 |
-15:55:42.2 |
HIP 110689 |
19.80 |
| 2026-05-31 00:00 |
22:25:34.54 |
-15:56:10.9 |
HIP 110689 |
20.26 |
| 2026-05-31 12:00 |
22:25:41.89 |
-15:56:40.8 |
HIP 110689 |
20.91 |
| 2026-06-01 00:00 |
22:25:49.05 |
-15:57:12.0 |
HIP 110689 |
21.70 |
| 2026-06-01 12:00 |
22:25:56.02 |
-15:57:44.5 |
HIP 110689 |
22.61 |
| 2026-06-02 00:00 |
22:26:02.80 |
-15:58:18.3 |
HIP 110689 |
23.63 |