| 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) |
| 2026-09-20 00:00 |
13:14:41.38 |
-11:36:10.0 |
HIP 64638 |
14.48 |
| 2026-09-20 12:00 |
13:15:50.17 |
-11:44:09.2 |
HIP 64638 |
25.74 |
| 2026-09-21 00:00 |
13:16:58.93 |
-11:52:07.0 |
HIP 64900 |
22.13 |
| 2026-09-21 12:00 |
13:18:07.67 |
-12:00:03.3 |
HIP 64900 |
6.21 |
| 2026-09-22 00:00 |
13:19:16.38 |
-12:07:58.0 |
HIP 64953 |
9.54 |
| 2026-09-22 12:00 |
13:20:25.08 |
-12:15:51.3 |
HIP 65014 |
17.61 |
| 2026-09-23 00:00 |
13:21:33.75 |
-12:23:43.0 |
HIP 65239 |
13.90 |
| 2026-09-23 12:00 |
13:22:42.40 |
-12:31:33.3 |
HIP 65239 |
8.93 |
| 2026-09-24 00:00 |
13:23:51.03 |
-12:39:21.9 |
HIP 65239 |
25.49 |
| 2026-09-24 12:00 |
13:24:59.64 |
-12:47:09.1 |
HIP 65581 |
25.70 |
| 2026-09-25 00:00 |
13:26:08.23 |
-12:54:54.7 |
HIP 65553 |
9.14 |
| 2026-09-25 12:00 |
13:27:16.80 |
-13:02:38.8 |
HIP 65553 |
13.32 |
| 2026-09-26 00:00 |
13:28:25.35 |
-13:10:21.3 |
HIP 65623 |
18.83 |
| 2026-09-26 12:00 |
13:29:33.88 |
-13:18:02.3 |
HIP 65949 |
25.74 |
| 2026-09-27 00:00 |
13:30:42.39 |
-13:25:41.6 |
HIP 65949 |
7.60 |
| 2026-09-27 12:00 |
13:31:50.89 |
-13:33:19.5 |
HIP 65949 |
11.17 |
| 2026-09-28 00:00 |
13:32:59.36 |
-13:40:55.7 |
HIP 66076 |
9.05 |
| 2026-09-28 12:00 |
13:34:07.82 |
-13:48:30.4 |
HIP 66076 |
20.61 |
| 2026-09-29 00:00 |
13:35:16.26 |
-13:56:03.5 |
HIP 66343 |
28.38 |
| 2026-09-29 12:00 |
13:36:24.69 |
-14:03:35.0 |
HIP 66510 |
25.21 |
| 2026-09-30 00:00 |
13:37:33.09 |
-14:11:04.9 |
HIP 66510 |
7.02 |
| 2026-09-30 12:00 |
13:38:41.49 |
-14:18:33.2 |
HIP 66510 |
11.19 |
| 2026-10-01 00:00 |
13:39:49.86 |
-14:25:59.9 |
HIP 66512 |
27.90 |
| 2026-10-01 12:00 |
13:40:58.22 |
-14:33:25.0 |
HIP 66834 |
15.41 |
| 2026-10-02 00:00 |
13:42:06.57 |
-14:40:48.5 |
HIP 66834 |
16.27 |
| 2026-10-02 12:00 |
13:43:14.90 |
-14:48:10.3 |
HIP 66920 |
14.86 |
| 2026-10-03 00:00 |
13:44:23.22 |
-14:55:30.6 |
HIP 67043 |
9.88 |
| 2026-10-03 12:00 |
13:45:31.53 |
-15:02:49.2 |
HIP 67097 |
17.68 |
| 2026-10-04 00:00 |
13:46:39.82 |
-15:10:06.2 |
HIP 67097 |
32.62 |
| 2026-10-04 12:00 |
13:47:48.10 |
-15:17:21.5 |
HIP 67407 |
37.35 |
| 2026-10-05 00:00 |
13:48:56.36 |
-15:24:35.2 |
HIP 67445 |
39.30 |
| 2026-10-05 12:00 |
13:50:04.61 |
-15:31:47.3 |
HIP 67713 |
39.13 |
| 2026-10-06 00:00 |
13:51:12.85 |
-15:38:57.7 |
HIP 67713 |
33.41 |
| 2026-10-06 12:00 |
13:52:21.07 |
-15:46:06.4 |
HIP 67784 |
18.43 |
| 2026-10-07 00:00 |
13:53:29.29 |
-15:53:13.5 |
HIP 67784 |
7.87 |
| 2026-10-07 12:00 |
13:54:37.49 |
-16:00:18.9 |
HIP 68007 |
16.53 |
| 2026-10-08 00:00 |
13:55:45.67 |
-16:07:22.7 |
HIP 68007 |
2.48 |
| 2026-10-08 12:00 |
13:56:53.85 |
-16:14:24.7 |
HIP 68090 |
6.92 |
| 2026-10-09 00:00 |
13:58:02.01 |
-16:21:25.1 |
HIP 68090 |
24.71 |
| 2026-10-09 12:00 |
13:59:10.16 |
-16:28:23.7 |
HIP 68451 |
25.75 |
| 2026-10-10 00:00 |
14:00:18.29 |
-16:35:20.7 |
HIP 68451 |
17.68 |
| 2026-10-10 12:00 |
14:01:26.41 |
-16:42:16.0 |
HIP 68451 |
24.32 |
| 2026-10-11 00:00 |
14:02:34.52 |
-16:49:09.5 |
HIP 68643 |
33.62 |