메타데이터
| 항목 |
값 |
| Designation |
C/2016 R3 (Borisov) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2016-10-10T23:59:06.622080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:26Z |
| Obs used |
60 |
| NEO |
- |
| M1 |
16.700 |
| K1 |
4.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-09-15.0000000 |
| e |
0.99548615 |
| q (au) |
0.446783 |
| a (au) |
98.980564 |
| i (deg) |
53.067840 |
| Ω (om, deg) |
78.669399 |
| ω (w, deg) |
118.135919 |
| M (ma, deg) |
359.973978 |
밝기
산란 + 전체 선형
$$
M_a = (17.476 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
17.476 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.800 |
| 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) |
| 2026-05-12 00:00 |
02:18:24.41 |
-39:52:28.8 |
HIP 10880 |
28.17 |
| 2026-05-12 12:00 |
02:18:30.22 |
-39:52:27.3 |
HIP 10880 |
27.42 |
| 2026-05-13 00:00 |
02:18:36.01 |
-39:52:26.3 |
HIP 10880 |
26.71 |
| 2026-05-13 12:00 |
02:18:41.80 |
-39:52:25.7 |
HIP 10880 |
26.03 |
| 2026-05-14 00:00 |
02:18:47.57 |
-39:52:25.7 |
HIP 10880 |
25.39 |
| 2026-05-14 12:00 |
02:18:53.33 |
-39:52:26.1 |
HIP 10880 |
24.79 |
| 2026-05-15 00:00 |
02:18:59.08 |
-39:52:27.0 |
HIP 10880 |
24.23 |
| 2026-05-15 12:00 |
02:19:04.81 |
-39:52:28.4 |
HIP 10880 |
23.72 |
| 2026-05-16 00:00 |
02:19:10.53 |
-39:52:30.3 |
HIP 10880 |
23.26 |
| 2026-05-16 12:00 |
02:19:16.23 |
-39:52:32.7 |
HIP 10880 |
22.86 |
| 2026-05-17 00:00 |
02:19:21.92 |
-39:52:35.5 |
HIP 10880 |
22.51 |
| 2026-05-17 12:00 |
02:19:27.60 |
-39:52:38.9 |
HIP 10880 |
22.21 |
| 2026-05-18 00:00 |
02:19:33.26 |
-39:52:42.7 |
HIP 10880 |
21.98 |
| 2026-05-18 12:00 |
02:19:38.90 |
-39:52:47.0 |
HIP 10880 |
21.80 |
| 2026-05-19 00:00 |
02:19:44.53 |
-39:52:51.8 |
HIP 10880 |
21.69 |
| 2026-05-19 12:00 |
02:19:50.14 |
-39:52:57.0 |
HIP 10880 |
21.64 |
| 2026-05-20 00:00 |
02:19:55.73 |
-39:53:02.8 |
HIP 10880 |
21.65 |
| 2026-05-20 12:00 |
02:20:01.31 |
-39:53:09.0 |
HIP 10880 |
21.72 |
| 2026-05-21 00:00 |
02:20:06.86 |
-39:53:15.8 |
HIP 10880 |
21.86 |
| 2026-05-21 12:00 |
02:20:12.41 |
-39:53:23.0 |
HIP 10880 |
22.05 |
| 2026-05-22 00:00 |
02:20:17.93 |
-39:53:30.6 |
HIP 10880 |
22.30 |
| 2026-05-22 12:00 |
02:20:23.43 |
-39:53:38.8 |
HIP 10996 |
21.81 |
| 2026-05-23 00:00 |
02:20:28.92 |
-39:53:47.4 |
HIP 10996 |
20.99 |
| 2026-05-23 12:00 |
02:20:34.38 |
-39:53:56.5 |
HIP 10996 |
20.18 |
| 2026-05-24 00:00 |
02:20:39.83 |
-39:54:06.1 |
HIP 10996 |
19.40 |
| 2026-05-24 12:00 |
02:20:45.25 |
-39:54:16.2 |
HIP 10996 |
18.64 |
| 2026-05-25 00:00 |
02:20:50.66 |
-39:54:26.7 |
HIP 10996 |
17.90 |
| 2026-05-25 12:00 |
02:20:56.04 |
-39:54:37.7 |
HIP 10996 |
17.19 |
| 2026-05-26 00:00 |
02:21:01.41 |
-39:54:49.2 |
HIP 10996 |
16.51 |
| 2026-05-26 12:00 |
02:21:06.75 |
-39:55:01.1 |
HIP 10996 |
15.87 |
| 2026-05-27 00:00 |
02:21:12.07 |
-39:55:13.5 |
HIP 10996 |
15.26 |
| 2026-05-27 12:00 |
02:21:17.37 |
-39:55:26.4 |
HIP 10996 |
14.70 |
| 2026-05-28 00:00 |
02:21:22.65 |
-39:55:39.8 |
HIP 10996 |
14.18 |
| 2026-05-28 12:00 |
02:21:27.91 |
-39:55:53.6 |
HIP 10996 |
13.72 |
| 2026-05-29 00:00 |
02:21:33.14 |
-39:56:07.9 |
HIP 10996 |
13.31 |
| 2026-05-29 12:00 |
02:21:38.35 |
-39:56:22.6 |
HIP 10996 |
12.97 |
| 2026-05-30 00:00 |
02:21:43.54 |
-39:56:37.9 |
HIP 10996 |
12.69 |
| 2026-05-30 12:00 |
02:21:48.70 |
-39:56:53.5 |
HIP 10996 |
12.48 |
| 2026-05-31 00:00 |
02:21:53.84 |
-39:57:09.7 |
HIP 10996 |
12.34 |
| 2026-05-31 12:00 |
02:21:58.96 |
-39:57:26.3 |
HIP 10996 |
12.28 |
| 2026-06-01 00:00 |
02:22:04.05 |
-39:57:43.3 |
HIP 10996 |
12.30 |
| 2026-06-01 12:00 |
02:22:09.11 |
-39:58:00.9 |
HIP 10996 |
12.38 |
| 2026-06-02 00:00 |
02:22:14.16 |
-39:58:18.9 |
HIP 10996 |
12.54 |