메타데이터
| 항목 |
값 |
| Designation |
C/2024 N4 (Sarneczky) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-01-09T23:14:49.182720Z |
| Orbit solution date (soln_date, UTC) |
2026-03-21T13:42:22Z |
| Obs used |
469 |
| NEO |
- |
| M1 |
6.600 |
| K1 |
11.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-07-14T23:03:55.584000Z |
| Discovery magnitude (MPC) |
19.00 R |
| Discovery observatory (MPC) |
K88 · GINOP-KHK, Piszkéstető |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2025-01-10.0000000 |
| e |
1.00454035 |
| q (au) |
5.397605 |
| a (au) |
-1188.808944 |
| i (deg) |
49.771300 |
| Ω (om, deg) |
339.662444 |
| ω (w, deg) |
116.676997 |
| M (ma, deg) |
0.000001 |
밝기
산란 + 전체 선형
$$
M_a = (3.053 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
3.053 |
| n |
6.000 |
| gf |
0.979 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
9.929 |
| 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) |
| 2026-09-20 00:00 |
10:46:04.76 |
+12:13:31.2 |
HIP 52619 |
15.87 |
| 2026-09-20 12:00 |
10:46:20.16 |
+12:10:38.7 |
HIP 52619 |
20.15 |
| 2026-09-21 00:00 |
10:46:35.52 |
+12:07:46.6 |
HIP 52619 |
24.59 |
| 2026-09-21 12:00 |
10:46:50.84 |
+12:04:54.7 |
HIP 52833 |
22.79 |
| 2026-09-22 00:00 |
10:47:06.12 |
+12:02:03.1 |
HIP 52833 |
18.14 |
| 2026-09-22 12:00 |
10:47:21.36 |
+11:59:11.8 |
HIP 52833 |
13.53 |
| 2026-09-23 00:00 |
10:47:36.56 |
+11:56:20.8 |
HIP 52833 |
9.01 |
| 2026-09-23 12:00 |
10:47:51.72 |
+11:53:30.1 |
HIP 52833 |
4.85 |
| 2026-09-24 00:00 |
10:48:06.83 |
+11:50:39.6 |
HIP 52833 |
3.08 |
| 2026-09-24 12:00 |
10:48:21.90 |
+11:47:49.4 |
HIP 52833 |
6.23 |
| 2026-09-25 00:00 |
10:48:36.93 |
+11:44:59.6 |
HIP 52833 |
10.55 |
| 2026-09-25 12:00 |
10:48:51.92 |
+11:42:10.0 |
HIP 52833 |
15.05 |
| 2026-09-26 00:00 |
10:49:06.85 |
+11:39:20.7 |
HIP 52833 |
19.60 |
| 2026-09-26 12:00 |
10:49:21.75 |
+11:36:31.7 |
HIP 52833 |
24.16 |
| 2026-09-27 00:00 |
10:49:36.60 |
+11:33:43.0 |
HIP 53039 |
22.55 |
| 2026-09-27 12:00 |
10:49:51.40 |
+11:30:54.6 |
HIP 53039 |
19.28 |
| 2026-09-28 00:00 |
10:50:06.15 |
+11:28:06.5 |
HIP 53039 |
16.66 |
| 2026-09-28 12:00 |
10:50:20.86 |
+11:25:18.8 |
HIP 53039 |
15.01 |
| 2026-09-29 00:00 |
10:50:35.52 |
+11:22:31.3 |
HIP 53039 |
14.65 |
| 2026-09-29 12:00 |
10:50:50.13 |
+11:19:44.1 |
HIP 53039 |
15.66 |
| 2026-09-30 00:00 |
10:51:04.70 |
+11:16:57.3 |
HIP 53115 |
14.08 |
| 2026-09-30 12:00 |
10:51:19.21 |
+11:14:10.7 |
HIP 53115 |
12.19 |
| 2026-10-01 00:00 |
10:51:33.67 |
+11:11:24.5 |
HIP 53115 |
11.81 |
| 2026-10-01 12:00 |
10:51:48.08 |
+11:08:38.6 |
HIP 53115 |
13.08 |
| 2026-10-02 00:00 |
10:52:02.45 |
+11:05:53.0 |
HIP 53115 |
15.57 |
| 2026-10-02 12:00 |
10:52:16.76 |
+11:03:07.7 |
HIP 53200 |
16.37 |
| 2026-10-03 00:00 |
10:52:31.01 |
+11:00:22.7 |
HIP 53200 |
17.54 |
| 2026-10-03 12:00 |
10:52:45.22 |
+10:57:38.1 |
HIP 53200 |
19.66 |
| 2026-10-04 00:00 |
10:52:59.37 |
+10:54:53.8 |
HIP 53200 |
22.46 |
| 2026-10-04 12:00 |
10:53:13.46 |
+10:52:09.9 |
HIP 53200 |
25.71 |
| 2026-10-05 00:00 |
10:53:27.51 |
+10:49:26.3 |
HIP 53200 |
29.26 |
| 2026-10-05 12:00 |
10:53:41.49 |
+10:46:43.0 |
HIP 53200 |
33.00 |
| 2026-10-06 00:00 |
10:53:55.42 |
+10:44:00.0 |
HIP 53200 |
36.87 |
| 2026-10-06 12:00 |
10:54:09.29 |
+10:41:17.4 |
HIP 53170 |
39.10 |
| 2026-10-07 00:00 |
10:54:23.11 |
+10:38:35.2 |
HIP 53431 |
37.84 |
| 2026-10-07 12:00 |
10:54:36.86 |
+10:35:53.3 |
HIP 53431 |
33.73 |
| 2026-10-08 00:00 |
10:54:50.56 |
+10:33:11.8 |
HIP 53431 |
29.70 |
| 2026-10-08 12:00 |
10:55:04.20 |
+10:30:30.6 |
HIP 53431 |
25.76 |
| 2026-10-09 00:00 |
10:55:17.77 |
+10:27:49.8 |
HIP 53431 |
21.98 |
| 2026-10-09 12:00 |
10:55:31.29 |
+10:25:09.4 |
HIP 53431 |
18.42 |
| 2026-10-10 00:00 |
10:55:44.74 |
+10:22:29.3 |
HIP 53431 |
15.24 |
| 2026-10-10 12:00 |
10:55:58.13 |
+10:19:49.6 |
HIP 53431 |
12.71 |
| 2026-10-11 00:00 |
10:56:11.46 |
+10:17:10.3 |
HIP 53431 |
11.25 |