| Parameter |
Value |
| Designation |
C/2005 X1 (Beshore) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2005-07-05T18:12:30.124800Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:55Z |
| Obs used |
102 |
| NEO |
- |
| M1 |
14.000 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2006-01-06.0000000 |
| e |
0.99573052 |
| q (au) |
2.862145 |
| a (au) |
670.372938 |
| i (deg) |
91.941447 |
| Ω (om, deg) |
302.797830 |
| ω (w, deg) |
117.784661 |
| M (ma, deg) |
0.010462 |
Magnitude
Scatter + Global Linear
$$
M_a = (13.972 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
13.972 |
| n |
2.000 |
| gf |
0.894 |
| gb |
-0.500 |
| k |
0.944 |
| δ90 |
1.000 |
| 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) |
| 2026-06-01 00:00 |
05:55:40.28 |
-61:38:59.7 |
HIP 28077 |
12.57 |
| 2026-06-01 12:00 |
05:55:45.92 |
-61:38:47.8 |
HIP 28077 |
12.22 |
| 2026-06-02 00:00 |
05:55:51.57 |
-61:38:36.2 |
HIP 28077 |
11.91 |
| 2026-06-02 12:00 |
05:55:57.23 |
-61:38:25.0 |
HIP 28077 |
11.64 |
| 2026-06-03 00:00 |
05:56:02.91 |
-61:38:14.1 |
HIP 28077 |
11.40 |
| 2026-06-03 12:00 |
05:56:08.61 |
-61:38:03.5 |
HIP 28077 |
11.22 |
| 2026-06-04 00:00 |
05:56:14.31 |
-61:37:53.3 |
HIP 28077 |
11.08 |
| 2026-06-04 12:00 |
05:56:20.03 |
-61:37:43.4 |
HIP 28077 |
10.99 |
| 2026-06-05 00:00 |
05:56:25.76 |
-61:37:33.8 |
HIP 28077 |
10.95 |
| 2026-06-05 12:00 |
05:56:31.51 |
-61:37:24.6 |
HIP 28077 |
10.96 |
| 2026-06-06 00:00 |
05:56:37.26 |
-61:37:15.8 |
HIP 28077 |
11.02 |
| 2026-06-06 12:00 |
05:56:43.03 |
-61:37:07.3 |
HIP 28077 |
11.13 |
| 2026-06-07 00:00 |
05:56:48.81 |
-61:36:59.1 |
HIP 28077 |
11.29 |
| 2026-06-07 12:00 |
05:56:54.60 |
-61:36:51.3 |
HIP 28077 |
11.49 |
| 2026-06-08 00:00 |
05:57:00.40 |
-61:36:43.8 |
HIP 28077 |
11.74 |
| 2026-06-08 12:00 |
05:57:06.21 |
-61:36:36.7 |
HIP 28077 |
12.03 |
| 2026-06-09 00:00 |
05:57:12.04 |
-61:36:29.9 |
HIP 28077 |
12.36 |
| 2026-06-09 12:00 |
05:57:17.87 |
-61:36:23.5 |
HIP 28077 |
12.73 |
| 2026-06-10 00:00 |
05:57:23.70 |
-61:36:17.4 |
HIP 28077 |
13.13 |
| 2026-06-10 12:00 |
05:57:29.55 |
-61:36:11.7 |
HIP 28077 |
13.55 |
| 2026-06-11 00:00 |
05:57:35.41 |
-61:36:06.3 |
HIP 28077 |
14.01 |
| 2026-06-11 12:00 |
05:57:41.27 |
-61:36:01.3 |
HIP 28313 |
13.63 |
| 2026-06-12 00:00 |
05:57:47.15 |
-61:35:56.6 |
HIP 28313 |
13.24 |
| 2026-06-12 12:00 |
05:57:53.03 |
-61:35:52.3 |
HIP 28313 |
12.88 |
| 2026-06-13 00:00 |
05:57:58.91 |
-61:35:48.3 |
HIP 28313 |
12.53 |
| 2026-06-13 12:00 |
05:58:04.80 |
-61:35:44.7 |
HIP 28313 |
12.21 |
| 2026-06-14 00:00 |
05:58:10.70 |
-61:35:41.4 |
HIP 28313 |
11.92 |
| 2026-06-14 12:00 |
05:58:16.61 |
-61:35:38.5 |
HIP 28313 |
11.66 |
| 2026-06-15 00:00 |
05:58:22.52 |
-61:35:35.9 |
HIP 28313 |
11.42 |
| 2026-06-15 12:00 |
05:58:28.43 |
-61:35:33.7 |
HIP 28313 |
11.22 |
| 2026-06-16 00:00 |
05:58:34.35 |
-61:35:31.9 |
HIP 28313 |
11.06 |
| 2026-06-16 12:00 |
05:58:40.27 |
-61:35:30.4 |
HIP 28313 |
10.93 |
| 2026-06-17 00:00 |
05:58:46.20 |
-61:35:29.2 |
HIP 28313 |
10.85 |
| 2026-06-17 12:00 |
05:58:52.12 |
-61:35:28.4 |
HIP 28313 |
10.80 |
| 2026-06-18 00:00 |
05:58:58.05 |
-61:35:28.0 |
HIP 28313 |
10.79 |
| 2026-06-18 12:00 |
05:59:03.99 |
-61:35:27.9 |
HIP 28313 |
10.82 |
| 2026-06-19 00:00 |
05:59:09.92 |
-61:35:28.2 |
HIP 28313 |
10.89 |
| 2026-06-19 12:00 |
05:59:15.86 |
-61:35:28.8 |
HIP 28313 |
11.00 |
| 2026-06-20 00:00 |
05:59:21.80 |
-61:35:29.8 |
HIP 28313 |
11.14 |
| 2026-06-20 12:00 |
05:59:27.74 |
-61:35:31.2 |
HIP 28313 |
11.33 |
| 2026-06-21 00:00 |
05:59:33.68 |
-61:35:32.9 |
HIP 28313 |
11.54 |
| 2026-06-21 12:00 |
05:59:39.61 |
-61:35:34.9 |
HIP 28313 |
11.79 |
| 2026-06-22 00:00 |
05:59:45.55 |
-61:35:37.3 |
HIP 28313 |
12.08 |