메타데이터
| 항목 |
값 |
| Designation |
472P/NEAT-LINEAR |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2024-07-27T15:46:29.570880Z |
| Orbit solution date (soln_date, UTC) |
2026-03-07T14:43:41Z |
| Obs used |
1350 |
| NEO |
- |
| M1 |
6.500 |
| K1 |
14.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2023-09-09T02:13:12.604800Z |
| Discovery magnitude (MPC) |
21.70 G |
| Discovery observatory (MPC) |
Z84 · Calar Alto-Schmidt |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-04-29.0000000 |
| e |
0.55921342 |
| q (au) |
3.369110 |
| a (au) |
7.643404 |
| i (deg) |
10.900416 |
| Ω (om, deg) |
207.853697 |
| ω (w, deg) |
218.510075 |
| M (ma, deg) |
253.579745 |
밝기
산란 + 전체 선형
$$
M_a = (5.633 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.633 |
| n |
6.000 |
| gf |
0.894 |
| gb |
-0.500 |
| k |
0.948 |
| δ90 |
1.227 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 2023-09-05 |
2024-07-25 |
+47.4044 |
-24.438 |
| 2024-08-12 |
2025-04-29 |
-2.4708 |
+1.270 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
09:44:28.31 |
+04:39:24.7 |
HIP 47767 |
16.44 |
| 2026-05-12 12:00 |
09:44:37.19 |
+04:39:44.6 |
HIP 47767 |
16.51 |
| 2026-05-13 00:00 |
09:44:46.21 |
+04:40:03.5 |
HIP 47767 |
16.92 |
| 2026-05-13 12:00 |
09:44:55.39 |
+04:40:21.5 |
HIP 47767 |
17.64 |
| 2026-05-14 00:00 |
09:45:04.70 |
+04:40:38.4 |
HIP 47767 |
18.65 |
| 2026-05-14 12:00 |
09:45:14.16 |
+04:40:54.4 |
HIP 47767 |
19.93 |
| 2026-05-15 00:00 |
09:45:23.77 |
+04:41:09.4 |
HIP 47767 |
21.43 |
| 2026-05-15 12:00 |
09:45:33.51 |
+04:41:23.5 |
HIP 47767 |
23.12 |
| 2026-05-16 00:00 |
09:45:43.40 |
+04:41:36.5 |
HIP 47767 |
24.97 |
| 2026-05-16 12:00 |
09:45:53.43 |
+04:41:48.5 |
HIP 47767 |
26.96 |
| 2026-05-17 00:00 |
09:46:03.60 |
+04:41:59.6 |
HIP 47767 |
29.07 |
| 2026-05-17 12:00 |
09:46:13.91 |
+04:42:09.7 |
HIP 47767 |
31.29 |
| 2026-05-18 00:00 |
09:46:24.35 |
+04:42:18.8 |
HIP 47767 |
33.59 |
| 2026-05-18 12:00 |
09:46:34.94 |
+04:42:27.0 |
HIP 48063 |
35.10 |
| 2026-05-19 00:00 |
09:46:45.66 |
+04:42:34.1 |
HIP 48063 |
33.83 |
| 2026-05-19 12:00 |
09:46:56.51 |
+04:42:40.3 |
HIP 48063 |
32.70 |
| 2026-05-20 00:00 |
09:47:07.50 |
+04:42:45.5 |
HIP 48063 |
31.74 |
| 2026-05-20 12:00 |
09:47:18.62 |
+04:42:49.8 |
HIP 48063 |
30.96 |
| 2026-05-21 00:00 |
09:47:29.88 |
+04:42:53.1 |
HIP 48063 |
30.40 |
| 2026-05-21 12:00 |
09:47:41.26 |
+04:42:55.4 |
HIP 48063 |
30.07 |
| 2026-05-22 00:00 |
09:47:52.78 |
+04:42:56.8 |
HIP 48063 |
29.99 |
| 2026-05-22 12:00 |
09:48:04.43 |
+04:42:57.2 |
HIP 48063 |
30.18 |
| 2026-05-23 00:00 |
09:48:16.20 |
+04:42:56.7 |
HIP 48063 |
30.63 |
| 2026-05-23 12:00 |
09:48:28.10 |
+04:42:55.2 |
HIP 48063 |
31.34 |
| 2026-05-24 00:00 |
09:48:40.13 |
+04:42:52.7 |
HIP 48063 |
32.31 |
| 2026-05-24 12:00 |
09:48:52.29 |
+04:42:49.4 |
HIP 48273 |
32.98 |
| 2026-05-25 00:00 |
09:49:04.57 |
+04:42:45.0 |
HIP 48295 |
30.53 |
| 2026-05-25 12:00 |
09:49:16.97 |
+04:42:39.8 |
HIP 48295 |
28.01 |
| 2026-05-26 00:00 |
09:49:29.49 |
+04:42:33.6 |
HIP 48295 |
25.59 |
| 2026-05-26 12:00 |
09:49:42.14 |
+04:42:26.5 |
HIP 48295 |
23.34 |
| 2026-05-27 00:00 |
09:49:54.91 |
+04:42:18.4 |
HIP 48295 |
21.30 |
| 2026-05-27 12:00 |
09:50:07.79 |
+04:42:09.5 |
HIP 48295 |
19.57 |
| 2026-05-28 00:00 |
09:50:20.80 |
+04:41:59.6 |
HIP 48295 |
18.25 |
| 2026-05-28 12:00 |
09:50:33.92 |
+04:41:48.8 |
HIP 48295 |
17.46 |
| 2026-05-29 00:00 |
09:50:47.16 |
+04:41:37.1 |
HIP 48295 |
17.27 |
| 2026-05-29 12:00 |
09:51:00.52 |
+04:41:24.4 |
HIP 48295 |
17.72 |
| 2026-05-30 00:00 |
09:51:13.99 |
+04:41:10.9 |
HIP 48295 |
18.79 |
| 2026-05-30 12:00 |
09:51:27.58 |
+04:40:56.5 |
HIP 48295 |
20.39 |
| 2026-05-31 00:00 |
09:51:41.28 |
+04:40:41.1 |
HIP 48295 |
22.43 |
| 2026-05-31 12:00 |
09:51:55.10 |
+04:40:24.9 |
HIP 48475 |
20.72 |
| 2026-06-01 00:00 |
09:52:09.02 |
+04:40:07.7 |
HIP 48475 |
17.47 |
| 2026-06-01 12:00 |
09:52:23.06 |
+04:39:49.7 |
HIP 48475 |
14.29 |
| 2026-06-02 00:00 |
09:52:37.20 |
+04:39:30.8 |
HIP 48475 |
11.29 |