| Parameter |
Value |
| Designation |
C/1932 M1 (Newman) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1932-09-24T13:18:01.739520Z |
| Orbit solution date (soln_date, UTC) |
2023-12-04T20:32:28Z |
| Obs used |
67 |
| NEO |
- |
| M1 |
11.100 |
| K1 |
4.500 |
| PC |
- |
Osculating Elements
| Parameter |
Value |
| Epoch (epoch_cal, TDB) |
1932-08-08.0000000 |
| e |
1.00049326 |
| q (au) |
1.647388 |
| a (au) |
-3339.781255 |
| i (deg) |
78.388473 |
| Ω (om, deg) |
246.089739 |
| ω (w, deg) |
69.788496 |
| M (ma, deg) |
-0.000243 |
Magnitude
Scatter + Global Linear
$$
M_a = (11.370 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
Model Parameters
| Parameter |
Value |
| H0 |
11.370 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.573 |
| k |
0.800 |
| 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
Ephemeris
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
05:37:47.81 |
-30:48:31.3 |
HIP 26433 |
15.59 |
| 2026-03-26 12:00 |
05:37:48.02 |
-30:48:19.1 |
HIP 26433 |
15.80 |
| 2026-03-27 00:00 |
05:37:48.23 |
-30:48:06.9 |
HIP 26433 |
16.00 |
| 2026-03-27 12:00 |
05:37:48.46 |
-30:47:54.7 |
HIP 26433 |
16.21 |
| 2026-03-28 00:00 |
05:37:48.69 |
-30:47:42.5 |
HIP 26433 |
16.42 |
| 2026-03-28 12:00 |
05:37:48.94 |
-30:47:30.4 |
HIP 26433 |
16.63 |
| 2026-03-29 00:00 |
05:37:49.20 |
-30:47:18.3 |
HIP 26433 |
16.84 |
| 2026-03-29 12:00 |
05:37:49.46 |
-30:47:06.2 |
HIP 26433 |
17.05 |
| 2026-03-30 00:00 |
05:37:49.74 |
-30:46:54.1 |
HIP 26433 |
17.26 |
| 2026-03-30 12:00 |
05:37:50.02 |
-30:46:42.0 |
HIP 26433 |
17.47 |
| 2026-03-31 00:00 |
05:37:50.32 |
-30:46:30.0 |
HIP 26433 |
17.68 |
| 2026-03-31 12:00 |
05:37:50.63 |
-30:46:18.0 |
HIP 26433 |
17.89 |
| 2026-04-01 00:00 |
05:37:50.94 |
-30:46:06.0 |
HIP 26433 |
18.10 |
| 2026-04-01 12:00 |
05:37:51.27 |
-30:45:54.1 |
HIP 26433 |
18.31 |
| 2026-04-02 00:00 |
05:37:51.60 |
-30:45:42.2 |
HIP 26433 |
18.52 |
| 2026-04-02 12:00 |
05:37:51.95 |
-30:45:30.3 |
HIP 26433 |
18.73 |
| 2026-04-03 00:00 |
05:37:52.30 |
-30:45:18.4 |
HIP 26433 |
18.94 |
| 2026-04-03 12:00 |
05:37:52.67 |
-30:45:06.6 |
HIP 26433 |
19.15 |
| 2026-04-04 00:00 |
05:37:53.04 |
-30:44:54.8 |
HIP 26433 |
19.36 |
| 2026-04-04 12:00 |
05:37:53.42 |
-30:44:43.1 |
HIP 26433 |
19.57 |
| 2026-04-05 00:00 |
05:37:53.82 |
-30:44:31.3 |
HIP 26433 |
19.78 |
| 2026-04-05 12:00 |
05:37:54.22 |
-30:44:19.6 |
HIP 26433 |
19.99 |
| 2026-04-06 00:00 |
05:37:54.63 |
-30:44:08.0 |
HIP 26433 |
20.20 |
| 2026-04-06 12:00 |
05:37:55.06 |
-30:43:56.4 |
HIP 26433 |
20.41 |
| 2026-04-07 00:00 |
05:37:55.49 |
-30:43:44.8 |
HIP 26433 |
20.62 |
| 2026-04-07 12:00 |
05:37:55.93 |
-30:43:33.2 |
HIP 26433 |
20.83 |
| 2026-04-08 00:00 |
05:37:56.38 |
-30:43:21.7 |
HIP 26433 |
21.04 |
| 2026-04-08 12:00 |
05:37:56.84 |
-30:43:10.3 |
HIP 26433 |
21.25 |
| 2026-04-09 00:00 |
05:37:57.31 |
-30:42:58.8 |
HIP 26433 |
21.46 |
| 2026-04-09 12:00 |
05:37:57.79 |
-30:42:47.5 |
HIP 26433 |
21.67 |
| 2026-04-10 00:00 |
05:37:58.27 |
-30:42:36.1 |
HIP 26433 |
21.88 |
| 2026-04-10 12:00 |
05:37:58.77 |
-30:42:24.8 |
HIP 26433 |
22.09 |
| 2026-04-11 00:00 |
05:37:59.28 |
-30:42:13.6 |
HIP 26433 |
22.30 |
| 2026-04-11 12:00 |
05:37:59.79 |
-30:42:02.4 |
HIP 26433 |
22.51 |
| 2026-04-12 00:00 |
05:38:00.32 |
-30:41:51.2 |
HIP 26433 |
22.72 |
| 2026-04-12 12:00 |
05:38:00.85 |
-30:41:40.1 |
HIP 26433 |
22.93 |
| 2026-04-13 00:00 |
05:38:01.39 |
-30:41:29.0 |
HIP 26433 |
23.14 |
| 2026-04-13 12:00 |
05:38:01.94 |
-30:41:18.0 |
HIP 26433 |
23.35 |
| 2026-04-14 00:00 |
05:38:02.50 |
-30:41:07.0 |
HIP 26433 |
23.55 |
| 2026-04-14 12:00 |
05:38:03.07 |
-30:40:56.1 |
HIP 26433 |
23.76 |
| 2026-04-15 00:00 |
05:38:03.65 |
-30:40:45.2 |
HIP 26433 |
23.97 |
| 2026-04-15 12:00 |
05:38:04.24 |
-30:40:34.4 |
HIP 26433 |
24.18 |
| 2026-04-16 00:00 |
05:38:04.84 |
-30:40:23.6 |
HIP 26660 |
24.26 |