메타데이터
| 항목 |
값 |
| Designation |
C/2002 B2 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2002-04-06T19:53:33.659520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:13Z |
| Obs used |
52 |
| NEO |
- |
| M1 |
10.100 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2002-02-21.0000000 |
| e |
0.99722476 |
| q (au) |
3.842167 |
| a (au) |
1384.445431 |
| i (deg) |
152.872587 |
| Ω (om, deg) |
54.316972 |
| ω (w, deg) |
257.070080 |
| M (ma, deg) |
359.999142 |
밝기
산란 + 전체 선형
$$
M_a = (12.373 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.373 |
| n |
2.000 |
| gf |
0.800 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
2.176 |
| 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) |
| 2026-09-20 00:00 |
00:25:48.15 |
+22:59:04.7 |
HIP 2023 |
2.97 |
| 2026-09-20 12:00 |
00:25:45.25 |
+22:58:51.6 |
HIP 2023 |
2.43 |
| 2026-09-21 00:00 |
00:25:42.34 |
+22:58:38.3 |
HIP 2023 |
1.98 |
| 2026-09-21 12:00 |
00:25:39.43 |
+22:58:25.0 |
HIP 2023 |
1.72 |
| 2026-09-22 00:00 |
00:25:36.52 |
+22:58:11.4 |
HIP 2023 |
1.73 |
| 2026-09-22 12:00 |
00:25:33.60 |
+22:57:57.8 |
HIP 2023 |
2.00 |
| 2026-09-23 00:00 |
00:25:30.68 |
+22:57:43.9 |
HIP 2023 |
2.46 |
| 2026-09-23 12:00 |
00:25:27.76 |
+22:57:30.0 |
HIP 2023 |
3.01 |
| 2026-09-24 00:00 |
00:25:24.84 |
+22:57:15.9 |
HIP 2023 |
3.62 |
| 2026-09-24 12:00 |
00:25:21.91 |
+22:57:01.6 |
HIP 2023 |
4.26 |
| 2026-09-25 00:00 |
00:25:18.98 |
+22:56:47.3 |
HIP 2023 |
4.93 |
| 2026-09-25 12:00 |
00:25:16.05 |
+22:56:32.8 |
HIP 2023 |
5.60 |
| 2026-09-26 00:00 |
00:25:13.12 |
+22:56:18.1 |
HIP 2023 |
6.29 |
| 2026-09-26 12:00 |
00:25:10.18 |
+22:56:03.3 |
HIP 2023 |
6.98 |
| 2026-09-27 00:00 |
00:25:07.25 |
+22:55:48.4 |
HIP 2023 |
7.68 |
| 2026-09-27 12:00 |
00:25:04.31 |
+22:55:33.4 |
HIP 2023 |
8.38 |
| 2026-09-28 00:00 |
00:25:01.37 |
+22:55:18.2 |
HIP 2023 |
9.09 |
| 2026-09-28 12:00 |
00:24:58.43 |
+22:55:02.9 |
HIP 2023 |
9.80 |
| 2026-09-29 00:00 |
00:24:55.49 |
+22:54:47.5 |
HIP 2023 |
10.51 |
| 2026-09-29 12:00 |
00:24:52.55 |
+22:54:31.9 |
HIP 2023 |
11.23 |
| 2026-09-30 00:00 |
00:24:49.61 |
+22:54:16.2 |
HIP 2023 |
11.94 |
| 2026-09-30 12:00 |
00:24:46.67 |
+22:54:00.4 |
HIP 2023 |
12.66 |
| 2026-10-01 00:00 |
00:24:43.74 |
+22:53:44.4 |
HIP 2023 |
13.38 |
| 2026-10-01 12:00 |
00:24:40.80 |
+22:53:28.4 |
HIP 2023 |
14.10 |
| 2026-10-02 00:00 |
00:24:37.86 |
+22:53:12.2 |
HIP 1864 |
14.72 |
| 2026-10-02 12:00 |
00:24:34.92 |
+22:52:55.9 |
HIP 1864 |
13.99 |
| 2026-10-03 00:00 |
00:24:31.99 |
+22:52:39.4 |
HIP 1864 |
13.26 |
| 2026-10-03 12:00 |
00:24:29.05 |
+22:52:22.9 |
HIP 1864 |
12.54 |
| 2026-10-04 00:00 |
00:24:26.12 |
+22:52:06.2 |
HIP 1864 |
11.81 |
| 2026-10-04 12:00 |
00:24:23.19 |
+22:51:49.4 |
HIP 1864 |
11.08 |
| 2026-10-05 00:00 |
00:24:20.26 |
+22:51:32.5 |
HIP 1864 |
10.35 |
| 2026-10-05 12:00 |
00:24:17.33 |
+22:51:15.5 |
HIP 1864 |
9.62 |
| 2026-10-06 00:00 |
00:24:14.41 |
+22:50:58.3 |
HIP 1864 |
8.90 |
| 2026-10-06 12:00 |
00:24:11.48 |
+22:50:41.1 |
HIP 1864 |
8.17 |
| 2026-10-07 00:00 |
00:24:08.56 |
+22:50:23.7 |
HIP 1864 |
7.44 |
| 2026-10-07 12:00 |
00:24:05.65 |
+22:50:06.2 |
HIP 1864 |
6.72 |
| 2026-10-08 00:00 |
00:24:02.74 |
+22:49:48.7 |
HIP 1864 |
6.00 |
| 2026-10-08 12:00 |
00:23:59.83 |
+22:49:31.0 |
HIP 1864 |
5.28 |
| 2026-10-09 00:00 |
00:23:56.92 |
+22:49:13.2 |
HIP 1864 |
4.57 |
| 2026-10-09 12:00 |
00:23:54.02 |
+22:48:55.3 |
HIP 1864 |
3.86 |
| 2026-10-10 00:00 |
00:23:51.12 |
+22:48:37.3 |
HIP 1864 |
3.17 |
| 2026-10-10 12:00 |
00:23:48.23 |
+22:48:19.2 |
HIP 1864 |
2.50 |
| 2026-10-11 00:00 |
00:23:45.35 |
+22:48:01.0 |
HIP 1864 |
1.88 |