메타데이터
| 항목 |
값 |
| Designation |
C/2013 V2 (Borisov) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-10-14T08:23:13.560000Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:42Z |
| Obs used |
1794 |
| NEO |
- |
| M1 |
6.600 |
| K1 |
12.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2014-08-22.0000000 |
| e |
1.00446231 |
| q (au) |
3.507923 |
| a (au) |
-786.122697 |
| i (deg) |
37.848377 |
| Ω (om, deg) |
48.435656 |
| ω (w, deg) |
94.462543 |
| M (ma, deg) |
-0.002386 |
밝기
산란 + 전체 선형
$$
M_a = (9.199 + 2.863\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.199 |
| n |
2.863 |
| gf |
1.000 |
| gb |
-0.867 |
| 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) |
| 2026-03-26 00:00 |
18:28:48.96 |
-51:45:54.0 |
HIP 90442 |
16.49 |
| 2026-03-26 12:00 |
18:28:49.91 |
-51:46:29.8 |
HIP 90442 |
16.37 |
| 2026-03-27 00:00 |
18:28:50.79 |
-51:47:05.7 |
HIP 90442 |
16.26 |
| 2026-03-27 12:00 |
18:28:51.61 |
-51:47:41.6 |
HIP 90442 |
16.17 |
| 2026-03-28 00:00 |
18:28:52.36 |
-51:48:17.6 |
HIP 90442 |
16.09 |
| 2026-03-28 12:00 |
18:28:53.05 |
-51:48:53.6 |
HIP 90442 |
16.03 |
| 2026-03-29 00:00 |
18:28:53.67 |
-51:49:29.6 |
HIP 90442 |
15.97 |
| 2026-03-29 12:00 |
18:28:54.23 |
-51:50:05.7 |
HIP 90442 |
15.94 |
| 2026-03-30 00:00 |
18:28:54.73 |
-51:50:41.8 |
HIP 90442 |
15.91 |
| 2026-03-30 12:00 |
18:28:55.17 |
-51:51:17.9 |
HIP 90442 |
15.90 |
| 2026-03-31 00:00 |
18:28:55.53 |
-51:51:54.1 |
HIP 90442 |
15.90 |
| 2026-03-31 12:00 |
18:28:55.84 |
-51:52:30.3 |
HIP 90442 |
15.91 |
| 2026-04-01 00:00 |
18:28:56.08 |
-51:53:06.5 |
HIP 90442 |
15.94 |
| 2026-04-01 12:00 |
18:28:56.26 |
-51:53:42.7 |
HIP 90442 |
15.98 |
| 2026-04-02 00:00 |
18:28:56.37 |
-51:54:18.9 |
HIP 90442 |
16.03 |
| 2026-04-02 12:00 |
18:28:56.42 |
-51:54:55.2 |
HIP 90442 |
16.09 |
| 2026-04-03 00:00 |
18:28:56.40 |
-51:55:31.5 |
HIP 90442 |
16.17 |
| 2026-04-03 12:00 |
18:28:56.32 |
-51:56:07.8 |
HIP 90442 |
16.26 |
| 2026-04-04 00:00 |
18:28:56.18 |
-51:56:44.0 |
HIP 90442 |
16.36 |
| 2026-04-04 12:00 |
18:28:55.97 |
-51:57:20.3 |
HIP 90442 |
16.48 |
| 2026-04-05 00:00 |
18:28:55.70 |
-51:57:56.6 |
HIP 90442 |
16.60 |
| 2026-04-05 12:00 |
18:28:55.36 |
-51:58:32.9 |
HIP 90442 |
16.74 |
| 2026-04-06 00:00 |
18:28:54.96 |
-51:59:09.2 |
HIP 90442 |
16.89 |
| 2026-04-06 12:00 |
18:28:54.50 |
-51:59:45.5 |
HIP 90442 |
17.05 |
| 2026-04-07 00:00 |
18:28:53.97 |
-52:00:21.8 |
HIP 90442 |
17.22 |
| 2026-04-07 12:00 |
18:28:53.37 |
-52:00:58.1 |
HIP 90442 |
17.41 |
| 2026-04-08 00:00 |
18:28:52.71 |
-52:01:34.3 |
HIP 90442 |
17.60 |
| 2026-04-08 12:00 |
18:28:51.99 |
-52:02:10.6 |
HIP 90442 |
17.80 |
| 2026-04-09 00:00 |
18:28:51.21 |
-52:02:46.8 |
HIP 90442 |
18.02 |
| 2026-04-09 12:00 |
18:28:50.35 |
-52:03:23.0 |
HIP 90442 |
18.24 |
| 2026-04-10 00:00 |
18:28:49.44 |
-52:03:59.2 |
HIP 90442 |
18.47 |
| 2026-04-10 12:00 |
18:28:48.46 |
-52:04:35.4 |
HIP 90442 |
18.72 |
| 2026-04-11 00:00 |
18:28:47.42 |
-52:05:11.5 |
HIP 90442 |
18.97 |
| 2026-04-11 12:00 |
18:28:46.31 |
-52:05:47.6 |
HIP 90442 |
19.23 |
| 2026-04-12 00:00 |
18:28:45.14 |
-52:06:23.7 |
HIP 90442 |
19.50 |
| 2026-04-12 12:00 |
18:28:43.90 |
-52:06:59.7 |
HIP 90442 |
19.78 |
| 2026-04-13 00:00 |
18:28:42.60 |
-52:07:35.7 |
HIP 90442 |
20.07 |
| 2026-04-13 12:00 |
18:28:41.24 |
-52:08:11.6 |
HIP 90442 |
20.37 |
| 2026-04-14 00:00 |
18:28:39.81 |
-52:08:47.6 |
HIP 90442 |
20.67 |
| 2026-04-14 12:00 |
18:28:38.32 |
-52:09:23.4 |
HIP 90442 |
20.99 |
| 2026-04-15 00:00 |
18:28:36.77 |
-52:09:59.2 |
HIP 90519 |
20.37 |
| 2026-04-15 12:00 |
18:28:35.15 |
-52:10:35.0 |
HIP 90519 |
19.74 |
| 2026-04-16 00:00 |
18:28:33.47 |
-52:11:10.7 |
HIP 90519 |
19.11 |