메타데이터
| 항목 |
값 |
| Designation |
C/2024 Q4 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2024-11-11T17:40:59.986560Z |
| Orbit solution date (soln_date, UTC) |
2025-09-09T12:42:40Z |
| Obs used |
48 |
| NEO |
- |
| M1 |
10.000 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-08-31T14:37:17.472000Z |
| Discovery magnitude (MPC) |
21.16 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-10-29.0000000 |
| e |
0.99600257 |
| q (au) |
5.418751 |
| a (au) |
1355.557776 |
| i (deg) |
3.309199 |
| Ω (om, deg) |
324.348085 |
| ω (w, deg) |
132.914334 |
| M (ma, deg) |
359.999729 |
밝기
산란 + 전체 선형
$$
M_a = (5.699 + 5.974\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.699 |
| n |
5.974 |
| gf |
0.924 |
| gb |
-0.926 |
| k |
1.000 |
| δ90 |
5.864 |
| 파라미터 |
기호 |
범위 |
설명 |
| 태양·지구거리 1 AU에서의 절대등급 |
H0 |
-5 to 20 |
혜성의 고유 밝기 |
| 광도 기울기 파라미터 |
n |
2 to 6 |
태양거리 변화에 따른 밝기 변화율 |
| 전방 산란 비대칭 계수 |
gf |
0.8 to 1 |
전방 산란의 강도 |
| 후방 산란 비대칭 계수 |
gb |
-1 to -0.5 |
후방 산란의 강도 |
| 분할 계수 |
k |
0.8 to 1 |
전·후방 산란 기여도 비율 |
| 먼지/가스 밝기 비 |
δ90 |
1 to 10 |
코마에서 먼지 산란 대비 가스 방출의 상대 기여 |
참고: EPSC-DPS2025-160
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-03-26 00:00 |
09:27:28.60 |
+14:53:02.2 |
HIP 46339 |
9.84 |
| 2026-03-26 12:00 |
09:27:24.68 |
+14:53:11.9 |
HIP 46339 |
8.88 |
| 2026-03-27 00:00 |
09:27:20.89 |
+14:53:20.9 |
HIP 46339 |
7.96 |
| 2026-03-27 12:00 |
09:27:17.23 |
+14:53:29.3 |
HIP 46339 |
7.08 |
| 2026-03-28 00:00 |
09:27:13.71 |
+14:53:37.1 |
HIP 46339 |
6.23 |
| 2026-03-28 12:00 |
09:27:10.33 |
+14:53:44.3 |
HIP 46339 |
5.42 |
| 2026-03-29 00:00 |
09:27:07.09 |
+14:53:50.8 |
HIP 46339 |
4.66 |
| 2026-03-29 12:00 |
09:27:03.98 |
+14:53:56.7 |
HIP 46339 |
3.93 |
| 2026-03-30 00:00 |
09:27:01.01 |
+14:54:02.0 |
HIP 46339 |
3.26 |
| 2026-03-30 12:00 |
09:26:58.18 |
+14:54:06.6 |
HIP 46339 |
2.65 |
| 2026-03-31 00:00 |
09:26:55.49 |
+14:54:10.6 |
HIP 46339 |
2.11 |
| 2026-03-31 12:00 |
09:26:52.93 |
+14:54:14.0 |
HIP 46339 |
1.69 |
| 2026-04-01 00:00 |
09:26:50.52 |
+14:54:16.7 |
HIP 46339 |
1.44 |
| 2026-04-01 12:00 |
09:26:48.24 |
+14:54:18.8 |
HIP 46339 |
1.41 |
| 2026-04-02 00:00 |
09:26:46.10 |
+14:54:20.2 |
HIP 46339 |
1.57 |
| 2026-04-02 12:00 |
09:26:44.11 |
+14:54:21.0 |
HIP 46339 |
1.85 |
| 2026-04-03 00:00 |
09:26:42.25 |
+14:54:21.2 |
HIP 46339 |
2.18 |
| 2026-04-03 12:00 |
09:26:40.53 |
+14:54:20.7 |
HIP 46339 |
2.53 |
| 2026-04-04 00:00 |
09:26:38.96 |
+14:54:19.6 |
HIP 46339 |
2.87 |
| 2026-04-04 12:00 |
09:26:37.52 |
+14:54:17.9 |
HIP 46339 |
3.19 |
| 2026-04-05 00:00 |
09:26:36.23 |
+14:54:15.5 |
HIP 46339 |
3.49 |
| 2026-04-05 12:00 |
09:26:35.07 |
+14:54:12.5 |
HIP 46339 |
3.76 |
| 2026-04-06 00:00 |
09:26:34.06 |
+14:54:08.8 |
HIP 46339 |
4.01 |
| 2026-04-06 12:00 |
09:26:33.19 |
+14:54:04.5 |
HIP 46339 |
4.23 |
| 2026-04-07 00:00 |
09:26:32.47 |
+14:53:59.5 |
HIP 46339 |
4.43 |
| 2026-04-07 12:00 |
09:26:31.88 |
+14:53:53.9 |
HIP 46339 |
4.60 |
| 2026-04-08 00:00 |
09:26:31.44 |
+14:53:47.6 |
HIP 46339 |
4.74 |
| 2026-04-08 12:00 |
09:26:31.13 |
+14:53:40.7 |
HIP 46339 |
4.85 |
| 2026-04-09 00:00 |
09:26:30.97 |
+14:53:33.2 |
HIP 46339 |
4.94 |
| 2026-04-09 12:00 |
09:26:30.96 |
+14:53:24.9 |
HIP 46339 |
5.00 |
| 2026-04-10 00:00 |
09:26:31.08 |
+14:53:16.1 |
HIP 46339 |
5.04 |
| 2026-04-10 12:00 |
09:26:31.35 |
+14:53:06.6 |
HIP 46339 |
5.07 |
| 2026-04-11 00:00 |
09:26:31.76 |
+14:52:56.4 |
HIP 46339 |
5.07 |
| 2026-04-11 12:00 |
09:26:32.32 |
+14:52:45.6 |
HIP 46339 |
5.06 |
| 2026-04-12 00:00 |
09:26:33.01 |
+14:52:34.2 |
HIP 46339 |
5.04 |
| 2026-04-12 12:00 |
09:26:33.86 |
+14:52:22.0 |
HIP 46339 |
5.01 |
| 2026-04-13 00:00 |
09:26:34.84 |
+14:52:09.3 |
HIP 46339 |
4.99 |
| 2026-04-13 12:00 |
09:26:35.96 |
+14:51:55.9 |
HIP 46339 |
4.97 |
| 2026-04-14 00:00 |
09:26:37.23 |
+14:51:41.8 |
HIP 46339 |
4.96 |
| 2026-04-14 12:00 |
09:26:38.65 |
+14:51:27.1 |
HIP 46339 |
4.97 |
| 2026-04-15 00:00 |
09:26:40.20 |
+14:51:11.7 |
HIP 46339 |
5.02 |
| 2026-04-15 12:00 |
09:26:41.90 |
+14:50:55.6 |
HIP 46339 |
5.10 |
| 2026-04-16 00:00 |
09:26:43.74 |
+14:50:38.9 |
HIP 46339 |
5.22 |