메타데이터
| 항목 |
값 |
| Designation |
C/2021 L3 (Borisov) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2022-02-13T15:37:30.763200Z |
| Orbit solution date (soln_date, UTC) |
2024-04-20T20:42:18Z |
| Obs used |
215 |
| NEO |
- |
| M1 |
9.500 |
| K1 |
6.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2021-06-08T21:44:52.224000Z |
| Discovery magnitude (MPC) |
20.20 R |
| Discovery observatory (MPC) |
L51 · MARGO, Nauchnyi |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-03-04.0000000 |
| e |
1.00141430 |
| q (au) |
8.457762 |
| a (au) |
-5980.195992 |
| i (deg) |
78.580039 |
| Ω (om, deg) |
344.969335 |
| ω (w, deg) |
91.593885 |
| M (ma, deg) |
0.000039 |
밝기
산란 + 전체 선형
$$
M_a = (9.235 + 2.109\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.235 |
| n |
2.109 |
| gf |
1.000 |
| gb |
-0.975 |
| k |
1.000 |
| δ90 |
9.999 |
| 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) |
| 2026-06-01 00:00 |
11:02:53.79 |
+27:50:01.1 |
HIP 53932 |
10.28 |
| 2026-06-01 12:00 |
11:02:52.53 |
+27:48:24.6 |
HIP 53932 |
10.51 |
| 2026-06-02 00:00 |
11:02:51.36 |
+27:46:47.8 |
HIP 53932 |
11.00 |
| 2026-06-02 12:00 |
11:02:50.28 |
+27:45:10.7 |
HIP 53932 |
11.72 |
| 2026-06-03 00:00 |
11:02:49.28 |
+27:43:33.3 |
HIP 53932 |
12.62 |
| 2026-06-03 12:00 |
11:02:48.37 |
+27:41:55.6 |
HIP 53932 |
13.68 |
| 2026-06-04 00:00 |
11:02:47.54 |
+27:40:17.6 |
HIP 53932 |
14.86 |
| 2026-06-04 12:00 |
11:02:46.79 |
+27:38:39.3 |
HIP 53932 |
16.13 |
| 2026-06-05 00:00 |
11:02:46.13 |
+27:37:00.7 |
HIP 53932 |
17.48 |
| 2026-06-05 12:00 |
11:02:45.55 |
+27:35:21.9 |
HIP 53932 |
18.89 |
| 2026-06-06 00:00 |
11:02:45.06 |
+27:33:42.8 |
HIP 53932 |
20.35 |
| 2026-06-06 12:00 |
11:02:44.65 |
+27:32:03.4 |
HIP 53932 |
21.85 |
| 2026-06-07 00:00 |
11:02:44.32 |
+27:30:23.8 |
HIP 53932 |
23.38 |
| 2026-06-07 12:00 |
11:02:44.08 |
+27:28:43.9 |
HIP 53932 |
24.93 |
| 2026-06-08 00:00 |
11:02:43.92 |
+27:27:03.8 |
HIP 53932 |
26.51 |
| 2026-06-08 12:00 |
11:02:43.84 |
+27:25:23.3 |
HIP 53932 |
28.11 |
| 2026-06-09 00:00 |
11:02:43.84 |
+27:23:42.7 |
HIP 53850 |
28.40 |
| 2026-06-09 12:00 |
11:02:43.93 |
+27:22:01.8 |
HIP 53850 |
27.52 |
| 2026-06-10 00:00 |
11:02:44.09 |
+27:20:20.6 |
HIP 53850 |
26.73 |
| 2026-06-10 12:00 |
11:02:44.34 |
+27:18:39.3 |
HIP 53850 |
26.04 |
| 2026-06-11 00:00 |
11:02:44.67 |
+27:16:57.6 |
HIP 53850 |
25.46 |
| 2026-06-11 12:00 |
11:02:45.08 |
+27:15:15.8 |
HIP 53850 |
25.00 |
| 2026-06-12 00:00 |
11:02:45.57 |
+27:13:33.7 |
HIP 53850 |
24.66 |
| 2026-06-12 12:00 |
11:02:46.14 |
+27:11:51.4 |
HIP 53850 |
24.46 |
| 2026-06-13 00:00 |
11:02:46.80 |
+27:10:08.9 |
HIP 53850 |
24.39 |
| 2026-06-13 12:00 |
11:02:47.53 |
+27:08:26.2 |
HIP 53850 |
24.46 |
| 2026-06-14 00:00 |
11:02:48.34 |
+27:06:43.3 |
HIP 53850 |
24.67 |
| 2026-06-14 12:00 |
11:02:49.23 |
+27:05:00.1 |
HIP 53850 |
25.01 |
| 2026-06-15 00:00 |
11:02:50.19 |
+27:03:16.8 |
HIP 53850 |
25.49 |
| 2026-06-15 12:00 |
11:02:51.24 |
+27:01:33.2 |
HIP 53850 |
26.09 |
| 2026-06-16 00:00 |
11:02:52.37 |
+26:59:49.5 |
HIP 53850 |
26.80 |
| 2026-06-16 12:00 |
11:02:53.57 |
+26:58:05.6 |
HIP 53850 |
27.63 |
| 2026-06-17 00:00 |
11:02:54.85 |
+26:56:21.5 |
HIP 54169 |
27.30 |
| 2026-06-17 12:00 |
11:02:56.21 |
+26:54:37.2 |
HIP 54169 |
26.51 |
| 2026-06-18 00:00 |
11:02:57.64 |
+26:52:52.7 |
HIP 54169 |
25.81 |
| 2026-06-18 12:00 |
11:02:59.15 |
+26:51:08.1 |
HIP 54169 |
25.19 |
| 2026-06-19 00:00 |
11:03:00.73 |
+26:49:23.3 |
HIP 54169 |
24.67 |
| 2026-06-19 12:00 |
11:03:02.39 |
+26:47:38.3 |
HIP 54169 |
24.25 |
| 2026-06-20 00:00 |
11:03:04.13 |
+26:45:53.2 |
HIP 54169 |
23.94 |
| 2026-06-20 12:00 |
11:03:05.94 |
+26:44:07.9 |
HIP 54169 |
23.75 |
| 2026-06-21 00:00 |
11:03:07.82 |
+26:42:22.5 |
HIP 54169 |
23.68 |
| 2026-06-21 12:00 |
11:03:09.78 |
+26:40:36.9 |
HIP 54169 |
23.73 |
| 2026-06-22 00:00 |
11:03:11.81 |
+26:38:51.2 |
HIP 54169 |
23.90 |