| Parameter |
Value |
| Designation |
136P/Mueller 3 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-05-30T21:09:59.175360Z |
| Orbit solution date (soln_date, UTC) |
2026-03-09T08:48:34Z |
| Obs used |
716 |
| NEO |
- |
| M1 |
8.500 |
| K1 |
17.250 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2017-05-25.0000000 |
| e |
0.29112782 |
| q (au) |
2.978613 |
| a (au) |
4.201904 |
| i (deg) |
9.415795 |
| Ω (om, deg) |
137.446331 |
| ω (w, deg) |
225.107350 |
| M (ma, deg) |
41.093409 |
Magnitude
Scatter + Global Linear
$$
M_a = (14.720 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
14.720 |
| n |
2.000 |
| gf |
0.917 |
| gb |
-0.789 |
| k |
0.998 |
| δ90 |
6.385 |
| 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 |
05:37:15.60 |
+17:51:07.7 |
HIP 26520 |
23.51 |
| 2026-05-12 12:00 |
05:37:51.60 |
+17:52:07.3 |
HIP 26520 |
17.77 |
| 2026-05-13 00:00 |
05:38:27.65 |
+17:53:06.1 |
HIP 26520 |
15.11 |
| 2026-05-13 12:00 |
05:39:03.74 |
+17:54:04.2 |
HIP 26520 |
17.03 |
| 2026-05-14 00:00 |
05:39:39.88 |
+17:55:01.6 |
HIP 26520 |
22.39 |
| 2026-05-14 12:00 |
05:40:16.06 |
+17:55:58.3 |
HIP 26786 |
29.30 |
| 2026-05-15 00:00 |
05:40:52.29 |
+17:56:54.2 |
HIP 26786 |
26.57 |
| 2026-05-15 12:00 |
05:41:28.56 |
+17:57:49.3 |
HIP 26786 |
26.53 |
| 2026-05-16 00:00 |
05:42:04.87 |
+17:58:43.7 |
HIP 26982 |
22.68 |
| 2026-05-16 12:00 |
05:42:41.22 |
+17:59:37.4 |
HIP 26982 |
14.83 |
| 2026-05-17 00:00 |
05:43:17.61 |
+18:00:30.3 |
HIP 26982 |
8.77 |
| 2026-05-17 12:00 |
05:43:54.04 |
+18:01:22.5 |
HIP 26982 |
9.23 |
| 2026-05-18 00:00 |
05:44:30.51 |
+18:02:13.9 |
HIP 26982 |
15.66 |
| 2026-05-18 12:00 |
05:45:07.01 |
+18:03:04.6 |
HIP 26982 |
23.62 |
| 2026-05-19 00:00 |
05:45:43.55 |
+18:03:54.5 |
HIP 27301 |
27.63 |
| 2026-05-19 12:00 |
05:46:20.13 |
+18:04:43.6 |
HIP 27301 |
23.29 |
| 2026-05-20 00:00 |
05:46:56.74 |
+18:05:32.0 |
HIP 27301 |
21.76 |
| 2026-05-20 12:00 |
05:47:33.38 |
+18:06:19.7 |
HIP 27450 |
18.85 |
| 2026-05-21 00:00 |
05:48:10.06 |
+18:07:06.6 |
HIP 27450 |
11.13 |
| 2026-05-21 12:00 |
05:48:46.77 |
+18:07:52.7 |
HIP 27450 |
6.73 |
| 2026-05-22 00:00 |
05:49:23.51 |
+18:08:38.1 |
HIP 27450 |
10.97 |
| 2026-05-22 12:00 |
05:50:00.28 |
+18:09:22.7 |
HIP 27590 |
10.89 |
| 2026-05-23 00:00 |
05:50:37.08 |
+18:10:06.6 |
HIP 27590 |
8.60 |
| 2026-05-23 12:00 |
05:51:13.90 |
+18:10:49.7 |
HIP 27590 |
13.54 |
| 2026-05-24 00:00 |
05:51:50.76 |
+18:11:32.1 |
HIP 27666 |
16.07 |
| 2026-05-24 12:00 |
05:52:27.64 |
+18:12:13.7 |
HIP 27841 |
14.21 |
| 2026-05-25 00:00 |
05:53:04.55 |
+18:12:54.6 |
HIP 27841 |
5.95 |
| 2026-05-25 12:00 |
05:53:41.48 |
+18:13:34.7 |
HIP 27841 |
4.85 |
| 2026-05-26 00:00 |
05:54:18.44 |
+18:14:14.0 |
HIP 27841 |
12.90 |
| 2026-05-26 12:00 |
05:54:55.42 |
+18:14:52.6 |
HIP 27841 |
21.55 |
| 2026-05-27 00:00 |
05:55:32.43 |
+18:15:30.4 |
HIP 28090 |
15.17 |
| 2026-05-27 12:00 |
05:56:09.45 |
+18:16:07.5 |
HIP 28090 |
11.78 |
| 2026-05-28 00:00 |
05:56:46.50 |
+18:16:43.8 |
HIP 28090 |
14.23 |
| 2026-05-28 12:00 |
05:57:23.58 |
+18:17:19.4 |
HIP 28090 |
20.54 |
| 2026-05-29 00:00 |
05:58:00.67 |
+18:17:54.2 |
HIP 28090 |
28.23 |
| 2026-05-29 12:00 |
05:58:37.78 |
+18:18:28.3 |
HIP 28307 |
31.00 |
| 2026-05-30 00:00 |
05:59:14.91 |
+18:19:01.6 |
HIP 120002 |
30.14 |
| 2026-05-30 12:00 |
05:59:52.07 |
+18:19:34.2 |
HIP 28497 |
30.17 |
| 2026-05-31 00:00 |
06:00:29.24 |
+18:20:06.0 |
HIP 28497 |
27.40 |
| 2026-05-31 12:00 |
06:01:06.42 |
+18:20:37.0 |
HIP 28497 |
27.33 |
| 2026-06-01 00:00 |
06:01:43.63 |
+18:21:07.3 |
HIP 28692 |
26.86 |
| 2026-06-01 12:00 |
06:02:20.85 |
+18:21:36.9 |
HIP 28692 |
19.24 |
| 2026-06-02 00:00 |
06:02:58.09 |
+18:22:05.7 |
HIP 28692 |
13.23 |