메타데이터
| 항목 |
값 |
| Designation |
C/1892 E1 (Swift) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1892-04-07T03:44:20.731200Z |
| Orbit solution date (soln_date, UTC) |
2023-10-09T20:36:13Z |
| Obs used |
53 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1892-07-27.0000000 |
| e |
0.99880065 |
| q (au) |
1.026893 |
| a (au) |
856.207621 |
| i (deg) |
38.700724 |
| Ω (om, deg) |
242.428343 |
| ω (w, deg) |
24.504179 |
| M (ma, deg) |
0.004361 |
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 |
04:55:47.03 |
+12:50:14.9 |
HIP 22753 |
31.42 |
| 2026-03-26 12:00 |
04:55:47.31 |
+12:50:17.3 |
HIP 22753 |
31.48 |
| 2026-03-27 00:00 |
04:55:47.61 |
+12:50:19.7 |
HIP 22753 |
31.55 |
| 2026-03-27 12:00 |
04:55:47.90 |
+12:50:22.0 |
HIP 22753 |
31.62 |
| 2026-03-28 00:00 |
04:55:48.21 |
+12:50:24.4 |
HIP 22753 |
31.68 |
| 2026-03-28 12:00 |
04:55:48.52 |
+12:50:26.8 |
HIP 22753 |
31.75 |
| 2026-03-29 00:00 |
04:55:48.84 |
+12:50:29.2 |
HIP 22753 |
31.83 |
| 2026-03-29 12:00 |
04:55:49.17 |
+12:50:31.6 |
HIP 22753 |
31.90 |
| 2026-03-30 00:00 |
04:55:49.50 |
+12:50:34.0 |
HIP 22753 |
31.98 |
| 2026-03-30 12:00 |
04:55:49.84 |
+12:50:36.4 |
HIP 22753 |
32.05 |
| 2026-03-31 00:00 |
04:55:50.18 |
+12:50:38.8 |
HIP 22753 |
32.13 |
| 2026-03-31 12:00 |
04:55:50.53 |
+12:50:41.2 |
HIP 22753 |
32.21 |
| 2026-04-01 00:00 |
04:55:50.89 |
+12:50:43.7 |
HIP 22753 |
32.29 |
| 2026-04-01 12:00 |
04:55:51.26 |
+12:50:46.1 |
HIP 22753 |
32.38 |
| 2026-04-02 00:00 |
04:55:51.63 |
+12:50:48.5 |
HIP 22753 |
32.46 |
| 2026-04-02 12:00 |
04:55:52.01 |
+12:50:50.9 |
HIP 22753 |
32.55 |
| 2026-04-03 00:00 |
04:55:52.39 |
+12:50:53.3 |
HIP 22753 |
32.64 |
| 2026-04-03 12:00 |
04:55:52.78 |
+12:50:55.7 |
HIP 22753 |
32.73 |
| 2026-04-04 00:00 |
04:55:53.18 |
+12:50:58.2 |
HIP 22753 |
32.82 |
| 2026-04-04 12:00 |
04:55:53.58 |
+12:51:00.6 |
HIP 22753 |
32.91 |
| 2026-04-05 00:00 |
04:55:53.99 |
+12:51:03.0 |
HIP 22753 |
33.01 |
| 2026-04-05 12:00 |
04:55:54.41 |
+12:51:05.4 |
HIP 22753 |
33.10 |
| 2026-04-06 00:00 |
04:55:54.83 |
+12:51:07.9 |
HIP 22753 |
33.20 |
| 2026-04-06 12:00 |
04:55:55.26 |
+12:51:10.3 |
HIP 22753 |
33.30 |
| 2026-04-07 00:00 |
04:55:55.69 |
+12:51:12.7 |
HIP 22753 |
33.40 |
| 2026-04-07 12:00 |
04:55:56.13 |
+12:51:15.1 |
HIP 22753 |
33.51 |
| 2026-04-08 00:00 |
04:55:56.58 |
+12:51:17.6 |
HIP 23085 |
33.45 |
| 2026-04-08 12:00 |
04:55:57.03 |
+12:51:20.0 |
HIP 23085 |
33.33 |
| 2026-04-09 00:00 |
04:55:57.49 |
+12:51:22.4 |
HIP 23085 |
33.22 |
| 2026-04-09 12:00 |
04:55:57.95 |
+12:51:24.8 |
HIP 23085 |
33.10 |
| 2026-04-10 00:00 |
04:55:58.42 |
+12:51:27.3 |
HIP 23085 |
32.97 |
| 2026-04-10 12:00 |
04:55:58.90 |
+12:51:29.7 |
HIP 23085 |
32.85 |
| 2026-04-11 00:00 |
04:55:59.38 |
+12:51:32.1 |
HIP 23085 |
32.73 |
| 2026-04-11 12:00 |
04:55:59.87 |
+12:51:34.5 |
HIP 23085 |
32.60 |
| 2026-04-12 00:00 |
04:56:00.36 |
+12:51:37.0 |
HIP 23085 |
32.47 |
| 2026-04-12 12:00 |
04:56:00.86 |
+12:51:39.4 |
HIP 23085 |
32.35 |
| 2026-04-13 00:00 |
04:56:01.37 |
+12:51:41.8 |
HIP 23085 |
32.22 |
| 2026-04-13 12:00 |
04:56:01.88 |
+12:51:44.2 |
HIP 23085 |
32.09 |
| 2026-04-14 00:00 |
04:56:02.39 |
+12:51:46.6 |
HIP 23085 |
31.95 |
| 2026-04-14 12:00 |
04:56:02.92 |
+12:51:49.0 |
HIP 23085 |
31.82 |
| 2026-04-15 00:00 |
04:56:03.45 |
+12:51:51.4 |
HIP 23085 |
31.68 |
| 2026-04-15 12:00 |
04:56:03.98 |
+12:51:53.8 |
HIP 23085 |
31.55 |
| 2026-04-16 00:00 |
04:56:04.52 |
+12:51:56.2 |
HIP 23085 |
31.41 |