136P/Mueller 3
| Parameter |
Value |
| Designation |
136P/Mueller 3 |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2016-05-30T22:22:48.544320Z |
| Orbit solution date (soln_date, UTC) |
2026-01-13T17:42:48Z |
| Obs used |
706 |
| NEO |
- |
| M1 |
8.600 |
| K1 |
17.000 |
| PC |
0.030 |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2017-04-07.0000000 |
| e |
0.29113322 |
| q (au) |
2.978758 |
| a (au) |
4.202141 |
| i (deg) |
9.415675 |
| Ω (om, deg) |
137.448177 |
| ω (w, deg) |
225.117779 |
| M (ma, deg) |
35.592036 |
Magnitude
Scatter + Global Linear
$$
M_a = (9.619 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
9.619 |
| n |
6.000 |
| gf |
0.999 |
| gb |
-0.891 |
| k |
1.000 |
| δ90 |
9.993 |
| 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) |
| 2026-02-03 00:00 |
04:15:03.43 |
+11:52:29.2 |
HIP 19886 |
18.83 |
| 2026-02-03 12:00 |
04:15:10.25 |
+11:54:30.5 |
HIP 19886 |
16.21 |
| 2026-02-04 00:00 |
04:15:17.34 |
+11:56:32.3 |
HIP 19886 |
13.55 |
| 2026-02-04 12:00 |
04:15:24.70 |
+11:58:34.5 |
HIP 19886 |
10.85 |
| 2026-02-05 00:00 |
04:15:32.33 |
+12:00:37.1 |
HIP 19886 |
8.09 |
| 2026-02-05 12:00 |
04:15:40.23 |
+12:02:40.1 |
HIP 19886 |
5.29 |
| 2026-02-06 00:00 |
04:15:48.39 |
+12:04:43.5 |
HIP 19886 |
2.48 |
| 2026-02-06 12:00 |
04:15:56.82 |
+12:06:47.4 |
HIP 19886 |
0.83 |
| 2026-02-07 00:00 |
04:16:05.52 |
+12:08:51.6 |
HIP 19886 |
3.54 |
| 2026-02-07 12:00 |
04:16:14.48 |
+12:10:56.1 |
HIP 19886 |
6.53 |
| 2026-02-08 00:00 |
04:16:23.70 |
+12:13:01.1 |
HIP 19886 |
9.58 |
| 2026-02-08 12:00 |
04:16:33.19 |
+12:15:06.3 |
HIP 19886 |
12.69 |
| 2026-02-09 00:00 |
04:16:42.93 |
+12:17:12.0 |
HIP 19886 |
15.85 |
| 2026-02-09 12:00 |
04:16:52.94 |
+12:19:17.9 |
HIP 19886 |
19.06 |
| 2026-02-10 00:00 |
04:17:03.20 |
+12:21:24.2 |
HIP 19886 |
22.33 |
| 2026-02-10 12:00 |
04:17:13.72 |
+12:23:30.7 |
HIP 20098 |
21.72 |
| 2026-02-11 00:00 |
04:17:24.49 |
+12:25:37.6 |
HIP 20098 |
18.41 |
| 2026-02-11 12:00 |
04:17:35.53 |
+12:27:44.8 |
HIP 20098 |
15.06 |
| 2026-02-12 00:00 |
04:17:46.81 |
+12:29:52.2 |
HIP 20098 |
11.70 |
| 2026-02-12 12:00 |
04:17:58.35 |
+12:31:59.9 |
HIP 20098 |
8.37 |
| 2026-02-13 00:00 |
04:18:10.14 |
+12:34:07.8 |
HIP 20098 |
5.25 |
| 2026-02-13 12:00 |
04:18:22.18 |
+12:36:16.0 |
HIP 20098 |
3.24 |
| 2026-02-14 00:00 |
04:18:34.46 |
+12:38:24.5 |
HIP 20098 |
4.46 |
| 2026-02-14 12:00 |
04:18:47.00 |
+12:40:33.1 |
HIP 20098 |
7.54 |
| 2026-02-15 00:00 |
04:18:59.78 |
+12:42:42.0 |
HIP 20187 |
10.43 |
| 2026-02-15 12:00 |
04:19:12.81 |
+12:44:51.0 |
HIP 20187 |
9.42 |
| 2026-02-16 00:00 |
04:19:26.08 |
+12:47:00.3 |
HIP 20187 |
9.89 |
| 2026-02-16 12:00 |
04:19:39.59 |
+12:49:09.7 |
HIP 20187 |
11.72 |
| 2026-02-17 00:00 |
04:19:53.35 |
+12:51:19.4 |
HIP 20204 |
13.91 |
| 2026-02-17 12:00 |
04:20:07.34 |
+12:53:29.1 |
HIP 20204 |
12.65 |
| 2026-02-18 00:00 |
04:20:21.58 |
+12:55:39.1 |
HIP 20204 |
12.65 |
| 2026-02-18 12:00 |
04:20:36.05 |
+12:57:49.1 |
HIP 20204 |
13.95 |
| 2026-02-19 00:00 |
04:20:50.75 |
+12:59:59.3 |
HIP 20204 |
16.29 |
| 2026-02-19 12:00 |
04:21:05.69 |
+13:02:09.6 |
HIP 20204 |
19.32 |
| 2026-02-20 00:00 |
04:21:20.87 |
+13:04:20.0 |
HIP 20204 |
22.80 |
| 2026-02-20 12:00 |
04:21:36.27 |
+13:06:30.5 |
HIP 20204 |
26.57 |
| 2026-02-21 00:00 |
04:21:51.91 |
+13:08:41.1 |
HIP 20371 |
26.46 |
| 2026-02-21 12:00 |
04:22:07.77 |
+13:10:51.8 |
HIP 20371 |
24.84 |
| 2026-02-22 00:00 |
04:22:23.86 |
+13:13:02.6 |
HIP 20371 |
23.96 |
| 2026-02-22 12:00 |
04:22:40.18 |
+13:15:13.3 |
HIP 20371 |
23.93 |
| 2026-02-23 00:00 |
04:22:56.71 |
+13:17:24.2 |
HIP 20371 |
24.78 |
| 2026-02-23 12:00 |
04:23:13.47 |
+13:19:35.0 |
HIP 20540 |
24.60 |
| 2026-02-24 00:00 |
04:23:30.45 |
+13:21:45.9 |
HIP 20540 |
24.84 |