| Parameter |
Value |
| Designation |
C/2009 K3 (Beshore) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-12-16T23:14:58.859520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:31Z |
| Obs used |
20 |
| NEO |
- |
| M1 |
9.000 |
| K1 |
10.000 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2009-05-27.0000000 |
| e |
1.00000000 |
| q (au) |
2.869026 |
| a (au) |
- |
| i (deg) |
144.420909 |
| Ω (om, deg) |
0.729520 |
| ω (w, deg) |
268.400721 |
| M (ma, deg) |
- |
Magnitude
Scatter + Global Linear
$$
M_a = (4.130 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
4.130 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.811 |
| k |
1.000 |
| δ90 |
10.000 |
| Parameter |
Symbol |
Range |
Description |
| Absolute magnitude at 1 AU from Sun and Earth |
H0 |
-5 to 20 |
Intrinsic brightness of the comet |
| Photometric slope parameter |
n |
2 to 6 |
Rate of brightness change with heliocentric distance |
| Forward scattering asymmetry factor |
gf |
0.8 to 1 |
Degree of forward scattering |
| Backward scattering asymmetry factor |
gb |
-1 to -0.5 |
Degree of backward scattering |
| Partitioning coefficient |
k |
0.8 to 1 |
Ratio between forward/backward scattering contributions |
| Dust-to-gas brightness ratio |
δ90 |
1 to 10 |
Relative contribution of dust scattering to gas emission |
Reference: EPSC-DPS2025-160
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
20:37:24.13 |
+10:35:25.7 |
HIP 101708 |
9.35 |
| 2026-05-12 12:00 |
20:37:22.99 |
+10:35:49.3 |
HIP 101708 |
9.45 |
| 2026-05-13 00:00 |
20:37:21.82 |
+10:36:12.6 |
HIP 101708 |
9.57 |
| 2026-05-13 12:00 |
20:37:20.62 |
+10:36:35.9 |
HIP 101708 |
9.70 |
| 2026-05-14 00:00 |
20:37:19.39 |
+10:36:58.9 |
HIP 101708 |
9.85 |
| 2026-05-14 12:00 |
20:37:18.13 |
+10:37:21.9 |
HIP 101708 |
10.01 |
| 2026-05-15 00:00 |
20:37:16.83 |
+10:37:44.6 |
HIP 101708 |
10.19 |
| 2026-05-15 12:00 |
20:37:15.51 |
+10:38:07.2 |
HIP 101708 |
10.39 |
| 2026-05-16 00:00 |
20:37:14.16 |
+10:38:29.7 |
HIP 101708 |
10.60 |
| 2026-05-16 12:00 |
20:37:12.78 |
+10:38:52.0 |
HIP 101708 |
10.82 |
| 2026-05-17 00:00 |
20:37:11.37 |
+10:39:14.1 |
HIP 101708 |
11.06 |
| 2026-05-17 12:00 |
20:37:09.93 |
+10:39:36.0 |
HIP 101708 |
11.31 |
| 2026-05-18 00:00 |
20:37:08.46 |
+10:39:57.8 |
HIP 101708 |
11.57 |
| 2026-05-18 12:00 |
20:37:06.96 |
+10:40:19.5 |
HIP 101708 |
11.84 |
| 2026-05-19 00:00 |
20:37:05.43 |
+10:40:40.9 |
HIP 101708 |
12.13 |
| 2026-05-19 12:00 |
20:37:03.87 |
+10:41:02.2 |
HIP 101708 |
12.43 |
| 2026-05-20 00:00 |
20:37:02.28 |
+10:41:23.3 |
HIP 101708 |
12.74 |
| 2026-05-20 12:00 |
20:37:00.67 |
+10:41:44.2 |
HIP 101708 |
13.05 |
| 2026-05-21 00:00 |
20:36:59.02 |
+10:42:05.0 |
HIP 101708 |
13.38 |
| 2026-05-21 12:00 |
20:36:57.35 |
+10:42:25.6 |
HIP 101708 |
13.72 |
| 2026-05-22 00:00 |
20:36:55.64 |
+10:42:46.0 |
HIP 101708 |
14.07 |
| 2026-05-22 12:00 |
20:36:53.91 |
+10:43:06.2 |
HIP 101708 |
14.43 |
| 2026-05-23 00:00 |
20:36:52.15 |
+10:43:26.2 |
HIP 101708 |
14.80 |
| 2026-05-23 12:00 |
20:36:50.36 |
+10:43:46.1 |
HIP 101708 |
15.17 |
| 2026-05-24 00:00 |
20:36:48.55 |
+10:44:05.8 |
HIP 101708 |
15.56 |
| 2026-05-24 12:00 |
20:36:46.70 |
+10:44:25.2 |
HIP 101708 |
15.95 |
| 2026-05-25 00:00 |
20:36:44.83 |
+10:44:44.5 |
HIP 101708 |
16.35 |
| 2026-05-25 12:00 |
20:36:42.93 |
+10:45:03.6 |
HIP 101708 |
16.75 |
| 2026-05-26 00:00 |
20:36:41.00 |
+10:45:22.6 |
HIP 101708 |
17.17 |
| 2026-05-26 12:00 |
20:36:39.04 |
+10:45:41.3 |
HIP 101708 |
17.59 |
| 2026-05-27 00:00 |
20:36:37.06 |
+10:45:59.8 |
HIP 101708 |
18.02 |
| 2026-05-27 12:00 |
20:36:35.05 |
+10:46:18.1 |
HIP 101592 |
18.31 |
| 2026-05-28 00:00 |
20:36:33.01 |
+10:46:36.3 |
HIP 101592 |
17.83 |
| 2026-05-28 12:00 |
20:36:30.94 |
+10:46:54.2 |
HIP 101592 |
17.34 |
| 2026-05-29 00:00 |
20:36:28.85 |
+10:47:12.0 |
HIP 101592 |
16.86 |
| 2026-05-29 12:00 |
20:36:26.73 |
+10:47:29.5 |
HIP 101592 |
16.37 |
| 2026-05-30 00:00 |
20:36:24.58 |
+10:47:46.9 |
HIP 101592 |
15.89 |
| 2026-05-30 12:00 |
20:36:22.41 |
+10:48:04.0 |
HIP 101592 |
15.41 |
| 2026-05-31 00:00 |
20:36:20.21 |
+10:48:21.0 |
HIP 101592 |
14.92 |
| 2026-05-31 12:00 |
20:36:17.98 |
+10:48:37.7 |
HIP 101592 |
14.45 |
| 2026-06-01 00:00 |
20:36:15.73 |
+10:48:54.3 |
HIP 101592 |
13.97 |
| 2026-06-01 12:00 |
20:36:13.45 |
+10:49:10.6 |
HIP 101592 |
13.50 |
| 2026-06-02 00:00 |
20:36:11.15 |
+10:49:26.7 |
HIP 101592 |
13.03 |