C/2023 V3 (PANSTARRS)
| Parameter |
Value |
| Designation |
C/2023 V3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2023-08-06T07:06:22.426560Z |
| Orbit solution date (soln_date, UTC) |
2024-01-04T23:43:40Z |
| Obs used |
52 |
| NEO |
- |
| M1 |
11.600 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-11-03T10:56:06.691200Z |
| Discovery magnitude (MPC) |
20.57 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
2023-11-04.0000000 |
| e |
0.66229058 |
| q (au) |
4.471746 |
| a (au) |
13.241401 |
| i (deg) |
40.258479 |
| Ω (om, deg) |
91.489824 |
| ω (w, deg) |
291.538176 |
| M (ma, deg) |
1.834909 |
Magnitude
Scatter + Global Linear
$$
M_a = (17.964 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
17.964 |
| n |
2.000 |
| gf |
0.987 |
| gb |
-0.759 |
| k |
0.800 |
| δ90 |
9.978 |
| 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 |
06:52:35.06 |
+36:15:03.2 |
HIP 32862 |
20.20 |
| 2026-02-03 12:00 |
06:52:22.69 |
+36:15:49.5 |
HIP 32862 |
17.93 |
| 2026-02-04 00:00 |
06:52:10.44 |
+36:16:35.0 |
HIP 32862 |
15.80 |
| 2026-02-04 12:00 |
06:51:58.32 |
+36:17:19.8 |
HIP 32862 |
13.83 |
| 2026-02-05 00:00 |
06:51:46.34 |
+36:18:03.9 |
HIP 32862 |
12.11 |
| 2026-02-05 12:00 |
06:51:34.49 |
+36:18:47.1 |
HIP 32862 |
10.71 |
| 2026-02-06 00:00 |
06:51:22.78 |
+36:19:29.6 |
HIP 32862 |
9.77 |
| 2026-02-06 12:00 |
06:51:11.21 |
+36:20:11.4 |
HIP 32862 |
9.40 |
| 2026-02-07 00:00 |
06:50:59.77 |
+36:20:52.4 |
HIP 32862 |
9.64 |
| 2026-02-07 12:00 |
06:50:48.48 |
+36:21:32.7 |
HIP 32798 |
7.38 |
| 2026-02-08 00:00 |
06:50:37.33 |
+36:22:12.2 |
HIP 32798 |
5.05 |
| 2026-02-08 12:00 |
06:50:26.32 |
+36:22:51.0 |
HIP 32798 |
2.76 |
| 2026-02-09 00:00 |
06:50:15.45 |
+36:23:29.0 |
HIP 32798 |
0.69 |
| 2026-02-09 12:00 |
06:50:04.73 |
+36:24:06.4 |
HIP 32798 |
1.89 |
| 2026-02-10 00:00 |
06:49:54.16 |
+36:24:43.0 |
HIP 32728 |
3.69 |
| 2026-02-10 12:00 |
06:49:43.74 |
+36:25:18.9 |
HIP 32728 |
1.64 |
| 2026-02-11 00:00 |
06:49:33.47 |
+36:25:54.1 |
HIP 32728 |
1.11 |
| 2026-02-11 12:00 |
06:49:23.35 |
+36:26:28.6 |
HIP 32728 |
2.97 |
| 2026-02-12 00:00 |
06:49:13.39 |
+36:27:02.5 |
HIP 32728 |
5.00 |
| 2026-02-12 12:00 |
06:49:03.57 |
+36:27:35.6 |
HIP 32728 |
7.03 |
| 2026-02-13 00:00 |
06:48:53.92 |
+36:28:08.0 |
HIP 32728 |
9.03 |
| 2026-02-13 12:00 |
06:48:44.42 |
+36:28:39.8 |
HIP 32728 |
11.01 |
| 2026-02-14 00:00 |
06:48:35.07 |
+36:29:10.9 |
HIP 32728 |
12.95 |
| 2026-02-14 12:00 |
06:48:25.89 |
+36:29:41.3 |
HIP 32728 |
14.86 |
| 2026-02-15 00:00 |
06:48:16.87 |
+36:30:11.0 |
HIP 32728 |
16.74 |
| 2026-02-15 12:00 |
06:48:08.00 |
+36:30:40.2 |
HIP 32496 |
17.12 |
| 2026-02-16 00:00 |
06:47:59.30 |
+36:31:08.6 |
HIP 32496 |
15.89 |
| 2026-02-16 12:00 |
06:47:50.76 |
+36:31:36.4 |
HIP 32496 |
14.79 |
| 2026-02-17 00:00 |
06:47:42.39 |
+36:32:03.6 |
HIP 32496 |
13.86 |
| 2026-02-17 12:00 |
06:47:34.18 |
+36:32:30.2 |
HIP 32496 |
13.11 |
| 2026-02-18 00:00 |
06:47:26.14 |
+36:32:56.1 |
HIP 32496 |
12.55 |
| 2026-02-18 12:00 |
06:47:18.26 |
+36:33:21.4 |
HIP 32496 |
12.20 |
| 2026-02-19 00:00 |
06:47:10.55 |
+36:33:46.1 |
HIP 32496 |
12.07 |
| 2026-02-19 12:00 |
06:47:03.01 |
+36:34:10.2 |
HIP 32496 |
12.14 |
| 2026-02-20 00:00 |
06:46:55.64 |
+36:34:33.7 |
HIP 32496 |
12.41 |
| 2026-02-20 12:00 |
06:46:48.44 |
+36:34:56.6 |
HIP 32496 |
12.84 |
| 2026-02-21 00:00 |
06:46:41.41 |
+36:35:18.9 |
HIP 32496 |
13.41 |
| 2026-02-21 12:00 |
06:46:34.55 |
+36:35:40.7 |
HIP 32496 |
14.08 |
| 2026-02-22 00:00 |
06:46:27.86 |
+36:36:01.8 |
HIP 32496 |
14.85 |
| 2026-02-22 12:00 |
06:46:21.34 |
+36:36:22.4 |
HIP 32496 |
15.67 |
| 2026-02-23 00:00 |
06:46:15.00 |
+36:36:42.5 |
HIP 32496 |
16.54 |
| 2026-02-23 12:00 |
06:46:08.83 |
+36:37:02.0 |
HIP 32496 |
17.44 |
| 2026-02-24 00:00 |
06:46:02.84 |
+36:37:21.0 |
HIP 32496 |
18.36 |