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
$$
M_a = (13.144 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.144 |
| n |
2.000 |
| gf |
0.982 |
| gb |
-0.862 |
| k |
1.000 |
| δ90 |
10.000 |
| 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 |
17:14:33.89 |
-22:47:24.9 |
HIP 84299 |
14.36 |
| 2026-09-20 12:00 |
17:14:35.63 |
-22:47:41.7 |
HIP 84299 |
14.79 |
| 2026-09-21 00:00 |
17:14:37.43 |
-22:47:58.6 |
HIP 84299 |
15.24 |
| 2026-09-21 12:00 |
17:14:39.29 |
-22:48:15.5 |
HIP 84299 |
15.69 |
| 2026-09-22 00:00 |
17:14:41.22 |
-22:48:32.4 |
HIP 84299 |
16.16 |
| 2026-09-22 12:00 |
17:14:43.21 |
-22:48:49.4 |
HIP 84299 |
16.64 |
| 2026-09-23 00:00 |
17:14:45.27 |
-22:49:06.4 |
HIP 84299 |
17.14 |
| 2026-09-23 12:00 |
17:14:47.38 |
-22:49:23.5 |
HIP 84299 |
17.64 |
| 2026-09-24 00:00 |
17:14:49.56 |
-22:49:40.6 |
HIP 84299 |
18.16 |
| 2026-09-24 12:00 |
17:14:51.80 |
-22:49:57.7 |
HIP 84299 |
18.68 |
| 2026-09-25 00:00 |
17:14:54.10 |
-22:50:14.9 |
HIP 84299 |
19.23 |
| 2026-09-25 12:00 |
17:14:56.46 |
-22:50:32.2 |
HIP 84299 |
19.78 |
| 2026-09-26 00:00 |
17:14:58.88 |
-22:50:49.5 |
HIP 84299 |
20.35 |
| 2026-09-26 12:00 |
17:15:01.37 |
-22:51:06.8 |
HIP 84299 |
20.93 |
| 2026-09-27 00:00 |
17:15:03.91 |
-22:51:24.2 |
HIP 84299 |
21.52 |
| 2026-09-27 12:00 |
17:15:06.52 |
-22:51:41.6 |
HIP 84299 |
22.12 |
| 2026-09-28 00:00 |
17:15:09.18 |
-22:51:59.0 |
HIP 84299 |
22.74 |
| 2026-09-28 12:00 |
17:15:11.91 |
-22:52:16.5 |
HIP 84299 |
23.37 |
| 2026-09-29 00:00 |
17:15:14.69 |
-22:52:34.1 |
HIP 84299 |
24.02 |
| 2026-09-29 12:00 |
17:15:17.53 |
-22:52:51.6 |
HIP 84299 |
24.67 |
| 2026-09-30 00:00 |
17:15:20.44 |
-22:53:09.3 |
HIP 84299 |
25.34 |
| 2026-09-30 12:00 |
17:15:23.40 |
-22:53:26.9 |
HIP 84299 |
26.03 |
| 2026-10-01 00:00 |
17:15:26.42 |
-22:53:44.6 |
HIP 84299 |
26.72 |
| 2026-10-01 12:00 |
17:15:29.50 |
-22:54:02.4 |
HIP 84299 |
27.43 |
| 2026-10-02 00:00 |
17:15:32.64 |
-22:54:20.2 |
HIP 84299 |
28.16 |
| 2026-10-02 12:00 |
17:15:35.84 |
-22:54:38.0 |
HIP 84299 |
28.89 |
| 2026-10-03 00:00 |
17:15:39.09 |
-22:54:55.8 |
HIP 84299 |
29.64 |
| 2026-10-03 12:00 |
17:15:42.41 |
-22:55:13.7 |
HIP 84299 |
30.40 |
| 2026-10-04 00:00 |
17:15:45.78 |
-22:55:31.7 |
HIP 84299 |
31.18 |
| 2026-10-04 12:00 |
17:15:49.20 |
-22:55:49.6 |
HIP 84299 |
31.97 |
| 2026-10-05 00:00 |
17:15:52.69 |
-22:56:07.7 |
HIP 84543 |
32.02 |
| 2026-10-05 12:00 |
17:15:56.23 |
-22:56:25.7 |
HIP 84543 |
31.90 |
| 2026-10-06 00:00 |
17:15:59.83 |
-22:56:43.8 |
HIP 84543 |
31.80 |
| 2026-10-06 12:00 |
17:16:03.49 |
-22:57:01.9 |
HIP 84543 |
31.71 |
| 2026-10-07 00:00 |
17:16:07.20 |
-22:57:20.1 |
HIP 84543 |
31.65 |
| 2026-10-07 12:00 |
17:16:10.97 |
-22:57:38.2 |
HIP 84543 |
31.61 |
| 2026-10-08 00:00 |
17:16:14.79 |
-22:57:56.5 |
HIP 84543 |
31.59 |
| 2026-10-08 12:00 |
17:16:18.67 |
-22:58:14.7 |
HIP 84543 |
31.60 |
| 2026-10-09 00:00 |
17:16:22.61 |
-22:58:33.0 |
HIP 84543 |
31.63 |
| 2026-10-09 12:00 |
17:16:26.60 |
-22:58:51.3 |
HIP 84543 |
31.69 |
| 2026-10-10 00:00 |
17:16:30.64 |
-22:59:09.7 |
HIP 84543 |
31.78 |
| 2026-10-10 12:00 |
17:16:34.74 |
-22:59:28.1 |
HIP 84543 |
31.89 |
| 2026-10-11 00:00 |
17:16:38.89 |
-22:59:46.5 |
HIP 84543 |
32.03 |