| Parameter |
Value |
| Designation |
412P/WISE |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2015-06-14T00:01:38.400960Z |
| Orbit solution date (soln_date, UTC) |
2025-04-09T14:05:32Z |
| Obs used |
74 |
| NEO |
- |
| M1 |
15.200 |
| K1 |
20.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2020-12-19T10:55:12.864000Z |
| Discovery magnitude (MPC) |
20.10 T |
| Discovery observatory (MPC) |
G37 · Lowell Discovery Telescope |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2013-11-03.0000000 |
| e |
0.48090203 |
| q (au) |
1.612615 |
| a (au) |
3.106572 |
| i (deg) |
8.937369 |
| Ω (om, deg) |
0.856614 |
| ω (w, deg) |
155.962875 |
| M (ma, deg) |
254.157519 |
Magnitude
Scatter + Global Linear
$$
M_a = (15.724 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
15.724 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.999 |
| 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
Finding Chart
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
07:42:23.21 |
+25:56:37.0 |
HIP 37452 |
15.15 |
| 2026-05-12 12:00 |
07:43:46.98 |
+25:50:49.7 |
HIP 37704 |
5.86 |
| 2026-05-13 00:00 |
07:45:10.78 |
+25:44:59.8 |
HIP 37704 |
14.52 |
| 2026-05-13 12:00 |
07:46:34.59 |
+25:39:07.1 |
HIP 37971 |
23.01 |
| 2026-05-14 00:00 |
07:47:58.42 |
+25:33:11.7 |
HIP 37971 |
31.34 |
| 2026-05-14 12:00 |
07:49:22.26 |
+25:27:13.6 |
HIP 38312 |
29.81 |
| 2026-05-15 00:00 |
07:50:46.11 |
+25:21:12.8 |
HIP 38312 |
14.81 |
| 2026-05-15 12:00 |
07:52:09.98 |
+25:15:09.3 |
HIP 38312 |
18.45 |
| 2026-05-16 00:00 |
07:53:33.85 |
+25:09:03.2 |
HIP 38630 |
14.71 |
| 2026-05-16 12:00 |
07:54:57.73 |
+25:02:54.3 |
HIP 38630 |
10.98 |
| 2026-05-17 00:00 |
07:56:21.61 |
+24:56:42.8 |
HIP 38752 |
17.38 |
| 2026-05-17 12:00 |
07:57:45.49 |
+24:50:28.5 |
HIP 38752 |
25.85 |
| 2026-05-18 00:00 |
07:59:09.37 |
+24:44:11.7 |
HIP 39148 |
24.94 |
| 2026-05-18 12:00 |
08:00:33.25 |
+24:37:52.2 |
HIP 39148 |
24.23 |
| 2026-05-19 00:00 |
08:01:57.12 |
+24:31:30.0 |
HIP 39387 |
16.72 |
| 2026-05-19 12:00 |
08:03:20.98 |
+24:25:05.2 |
HIP 39387 |
10.67 |
| 2026-05-20 00:00 |
08:04:44.83 |
+24:18:37.8 |
HIP 39528 |
1.27 |
| 2026-05-20 12:00 |
08:06:08.67 |
+24:12:07.8 |
HIP 39686 |
7.25 |
| 2026-05-21 00:00 |
08:07:32.49 |
+24:05:35.2 |
HIP 39790 |
6.20 |
| 2026-05-21 12:00 |
08:08:56.29 |
+23:59:00.0 |
HIP 39790 |
15.01 |
| 2026-05-22 00:00 |
08:10:20.08 |
+23:52:22.2 |
HIP 40120 |
27.29 |
| 2026-05-22 12:00 |
08:11:43.84 |
+23:45:41.9 |
HIP 40102 |
17.03 |
| 2026-05-23 00:00 |
08:13:07.57 |
+23:38:59.0 |
HIP 40102 |
24.36 |
| 2026-05-23 12:00 |
08:14:31.28 |
+23:32:13.6 |
HIP 40421 |
15.27 |
| 2026-05-24 00:00 |
08:15:54.96 |
+23:25:25.6 |
HIP 40421 |
22.07 |
| 2026-05-24 12:00 |
08:17:18.60 |
+23:18:35.2 |
HIP 40529 |
24.64 |
| 2026-05-25 00:00 |
08:18:42.22 |
+23:11:42.2 |
HIP 40915 |
31.88 |
| 2026-05-25 12:00 |
08:20:05.80 |
+23:04:46.8 |
HIP 40915 |
15.83 |
| 2026-05-26 00:00 |
08:21:29.34 |
+22:57:48.9 |
HIP 40984 |
5.06 |
| 2026-05-26 12:00 |
08:22:52.85 |
+22:50:48.5 |
HIP 40984 |
15.57 |
| 2026-05-27 00:00 |
08:24:16.31 |
+22:43:45.7 |
HIP 41291 |
22.22 |
| 2026-05-27 12:00 |
08:25:39.74 |
+22:36:40.5 |
HIP 41291 |
8.03 |
| 2026-05-28 00:00 |
08:27:03.12 |
+22:29:32.8 |
HIP 41291 |
21.84 |
| 2026-05-28 12:00 |
08:28:26.45 |
+22:22:22.8 |
HIP 41513 |
17.52 |
| 2026-05-29 00:00 |
08:29:49.74 |
+22:15:10.4 |
HIP 41687 |
11.40 |
| 2026-05-29 12:00 |
08:31:12.98 |
+22:07:55.6 |
HIP 41801 |
5.46 |
| 2026-05-30 00:00 |
08:32:36.18 |
+22:00:38.4 |
HIP 41801 |
17.39 |
| 2026-05-30 12:00 |
08:33:59.32 |
+21:53:18.9 |
HIP 42083 |
25.47 |
| 2026-05-31 00:00 |
08:35:22.41 |
+21:45:57.1 |
HIP 42083 |
19.20 |
| 2026-05-31 12:00 |
08:36:45.44 |
+21:38:32.9 |
HIP 42293 |
21.89 |
| 2026-06-01 00:00 |
08:38:08.43 |
+21:31:06.5 |
HIP 42293 |
29.79 |
| 2026-06-01 12:00 |
08:39:31.36 |
+21:23:37.8 |
HIP 42518 |
21.60 |
| 2026-06-02 00:00 |
08:40:54.23 |
+21:16:06.8 |
HIP 42518 |
16.43 |