메타데이터
| 항목 |
값 |
| Designation |
C/2019 V1 (Borisov) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2020-07-16T14:09:27.541440Z |
| Orbit solution date (soln_date, UTC) |
2022-07-06T03:12:23Z |
| Obs used |
111 |
| NEO |
- |
| M1 |
14.500 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2019-11-01T23:39:17.568000Z |
| Discovery magnitude (MPC) |
19.00 R |
| Discovery observatory (MPC) |
L51 · MARGO, Nauchnyi |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-11-26.0000000 |
| e |
0.99902392 |
| q (au) |
3.097057 |
| a (au) |
3172.941013 |
| i (deg) |
61.867108 |
| Ω (om, deg) |
83.206671 |
| ω (w, deg) |
51.207673 |
| M (ma, deg) |
359.998712 |
밝기
산란 + 전체 선형
$$
M_a = (13.194 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.194 |
| n |
2.000 |
| gf |
0.995 |
| gb |
-1.000 |
| k |
1.000 |
| δ90 |
9.982 |
| 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 |
17:36:12.85 |
-21:54:15.9 |
HIP 86060 |
15.12 |
| 2026-05-12 12:00 |
17:36:06.29 |
-21:54:27.4 |
HIP 86060 |
13.77 |
| 2026-05-13 00:00 |
17:35:59.69 |
-21:54:38.8 |
HIP 86060 |
12.45 |
| 2026-05-13 12:00 |
17:35:53.05 |
-21:54:50.2 |
HIP 86060 |
11.17 |
| 2026-05-14 00:00 |
17:35:46.37 |
-21:55:01.6 |
HIP 86060 |
9.98 |
| 2026-05-14 12:00 |
17:35:39.65 |
-21:55:13.0 |
HIP 86060 |
8.89 |
| 2026-05-15 00:00 |
17:35:32.89 |
-21:55:24.4 |
HIP 86060 |
7.95 |
| 2026-05-15 12:00 |
17:35:26.09 |
-21:55:35.7 |
HIP 86060 |
7.25 |
| 2026-05-16 00:00 |
17:35:19.25 |
-21:55:47.1 |
HIP 86060 |
6.85 |
| 2026-05-16 12:00 |
17:35:12.37 |
-21:55:58.4 |
HIP 86060 |
6.80 |
| 2026-05-17 00:00 |
17:35:05.46 |
-21:56:09.7 |
HIP 86060 |
7.14 |
| 2026-05-17 12:00 |
17:34:58.51 |
-21:56:21.0 |
HIP 86060 |
7.80 |
| 2026-05-18 00:00 |
17:34:51.52 |
-21:56:32.3 |
HIP 86060 |
8.73 |
| 2026-05-18 12:00 |
17:34:44.50 |
-21:56:43.5 |
HIP 86060 |
9.85 |
| 2026-05-19 00:00 |
17:34:37.45 |
-21:56:54.8 |
HIP 86060 |
11.10 |
| 2026-05-19 12:00 |
17:34:30.36 |
-21:57:06.0 |
HIP 86060 |
12.45 |
| 2026-05-20 00:00 |
17:34:23.24 |
-21:57:17.2 |
HIP 86060 |
13.88 |
| 2026-05-20 12:00 |
17:34:16.09 |
-21:57:28.4 |
HIP 86060 |
15.36 |
| 2026-05-21 00:00 |
17:34:08.90 |
-21:57:39.6 |
HIP 85925 |
14.93 |
| 2026-05-21 12:00 |
17:34:01.68 |
-21:57:50.8 |
HIP 85925 |
13.95 |
| 2026-05-22 00:00 |
17:33:54.44 |
-21:58:02.0 |
HIP 85925 |
13.10 |
| 2026-05-22 12:00 |
17:33:47.16 |
-21:58:13.1 |
HIP 85925 |
12.43 |
| 2026-05-23 00:00 |
17:33:39.86 |
-21:58:24.2 |
HIP 85925 |
11.96 |
| 2026-05-23 12:00 |
17:33:32.53 |
-21:58:35.3 |
HIP 85925 |
11.72 |
| 2026-05-24 00:00 |
17:33:25.17 |
-21:58:46.4 |
HIP 85925 |
11.73 |
| 2026-05-24 12:00 |
17:33:17.78 |
-21:58:57.5 |
HIP 85925 |
11.99 |
| 2026-05-25 00:00 |
17:33:10.37 |
-21:59:08.6 |
HIP 85925 |
12.49 |
| 2026-05-25 12:00 |
17:33:02.93 |
-21:59:19.7 |
HIP 85925 |
13.20 |
| 2026-05-26 00:00 |
17:32:55.47 |
-21:59:30.7 |
HIP 85925 |
14.09 |
| 2026-05-26 12:00 |
17:32:47.98 |
-21:59:41.7 |
HIP 85925 |
15.13 |
| 2026-05-27 00:00 |
17:32:40.47 |
-21:59:52.7 |
HIP 85925 |
16.30 |
| 2026-05-27 12:00 |
17:32:32.94 |
-22:00:03.7 |
HIP 85925 |
17.57 |
| 2026-05-28 00:00 |
17:32:25.38 |
-22:00:14.7 |
HIP 85925 |
18.92 |
| 2026-05-28 12:00 |
17:32:17.81 |
-22:00:25.7 |
HIP 85925 |
20.34 |
| 2026-05-29 00:00 |
17:32:10.21 |
-22:00:36.6 |
HIP 85925 |
21.81 |
| 2026-05-29 12:00 |
17:32:02.59 |
-22:00:47.5 |
HIP 85925 |
23.33 |
| 2026-05-30 00:00 |
17:31:54.95 |
-22:00:58.5 |
HIP 85925 |
24.89 |
| 2026-05-30 12:00 |
17:31:47.30 |
-22:01:09.4 |
HIP 85925 |
26.48 |
| 2026-05-31 00:00 |
17:31:39.63 |
-22:01:20.3 |
HIP 85925 |
28.10 |
| 2026-05-31 12:00 |
17:31:31.94 |
-22:01:31.1 |
HIP 85925 |
29.73 |
| 2026-06-01 00:00 |
17:31:24.23 |
-22:01:42.0 |
HIP 85925 |
31.39 |
| 2026-06-01 12:00 |
17:31:16.51 |
-22:01:52.8 |
HIP 85724 |
32.90 |
| 2026-06-02 00:00 |
17:31:08.77 |
-22:02:03.7 |
HIP 85724 |
32.97 |