메타데이터
| 항목 |
값 |
| Designation |
P/2010 J3 (McMillan) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2010-08-23T11:07:54.177600Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:44Z |
| Obs used |
524 |
| NEO |
- |
| M1 |
11.400 |
| K1 |
11.500 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2010-06-09.0000000 |
| e |
0.72682274 |
| q (au) |
2.455111 |
| a (au) |
8.987243 |
| i (deg) |
13.255078 |
| Ω (om, deg) |
106.661189 |
| ω (w, deg) |
157.312459 |
| M (ma, deg) |
357.239402 |
밝기
산란 + 전체 선형
$$
M_a = (12.620 + 4.528\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.620 |
| n |
4.528 |
| gf |
1.000 |
| gb |
-0.528 |
| k |
0.800 |
| δ90 |
10.000 |
| 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 |
05:48:55.83 |
+19:51:45.1 |
HIP 27266 |
35.80 |
| 2026-03-26 12:00 |
05:48:57.87 |
+19:51:56.2 |
HIP 27266 |
36.11 |
| 2026-03-27 00:00 |
05:48:59.97 |
+19:52:07.2 |
HIP 27266 |
36.44 |
| 2026-03-27 12:00 |
05:49:02.15 |
+19:52:18.3 |
HIP 27266 |
36.79 |
| 2026-03-28 00:00 |
05:49:04.39 |
+19:52:29.4 |
HIP 27266 |
37.16 |
| 2026-03-28 12:00 |
05:49:06.70 |
+19:52:40.5 |
HIP 27266 |
37.55 |
| 2026-03-29 00:00 |
05:49:09.08 |
+19:52:51.5 |
HIP 27266 |
37.96 |
| 2026-03-29 12:00 |
05:49:11.52 |
+19:53:02.6 |
HIP 27626 |
37.73 |
| 2026-03-30 00:00 |
05:49:14.03 |
+19:53:13.7 |
HIP 27626 |
37.21 |
| 2026-03-30 12:00 |
05:49:16.61 |
+19:53:24.7 |
HIP 27626 |
36.68 |
| 2026-03-31 00:00 |
05:49:19.25 |
+19:53:35.7 |
HIP 27626 |
36.14 |
| 2026-03-31 12:00 |
05:49:21.96 |
+19:53:46.8 |
HIP 27626 |
35.60 |
| 2026-04-01 00:00 |
05:49:24.73 |
+19:53:57.8 |
HIP 27626 |
35.05 |
| 2026-04-01 12:00 |
05:49:27.57 |
+19:54:08.8 |
HIP 27626 |
34.50 |
| 2026-04-02 00:00 |
05:49:30.47 |
+19:54:19.8 |
HIP 27626 |
33.94 |
| 2026-04-02 12:00 |
05:49:33.44 |
+19:54:30.8 |
HIP 27626 |
33.39 |
| 2026-04-03 00:00 |
05:49:36.47 |
+19:54:41.7 |
HIP 27626 |
32.83 |
| 2026-04-03 12:00 |
05:49:39.57 |
+19:54:52.7 |
HIP 27626 |
32.26 |
| 2026-04-04 00:00 |
05:49:42.73 |
+19:55:03.6 |
HIP 27626 |
31.70 |
| 2026-04-04 12:00 |
05:49:45.95 |
+19:55:14.6 |
HIP 27626 |
31.14 |
| 2026-04-05 00:00 |
05:49:49.24 |
+19:55:25.5 |
HIP 27626 |
30.58 |
| 2026-04-05 12:00 |
05:49:52.59 |
+19:55:36.4 |
HIP 27626 |
30.03 |
| 2026-04-06 00:00 |
05:49:56.01 |
+19:55:47.3 |
HIP 27626 |
29.47 |
| 2026-04-06 12:00 |
05:49:59.49 |
+19:55:58.1 |
HIP 27626 |
28.93 |
| 2026-04-07 00:00 |
05:50:03.03 |
+19:56:09.0 |
HIP 27626 |
28.39 |
| 2026-04-07 12:00 |
05:50:06.63 |
+19:56:19.8 |
HIP 27626 |
27.86 |
| 2026-04-08 00:00 |
05:50:10.29 |
+19:56:30.6 |
HIP 27626 |
27.35 |
| 2026-04-08 12:00 |
05:50:14.02 |
+19:56:41.4 |
HIP 27626 |
26.85 |
| 2026-04-09 00:00 |
05:50:17.80 |
+19:56:52.2 |
HIP 27626 |
26.36 |
| 2026-04-09 12:00 |
05:50:21.65 |
+19:57:02.9 |
HIP 27626 |
25.89 |
| 2026-04-10 00:00 |
05:50:25.56 |
+19:57:13.7 |
HIP 27626 |
25.45 |
| 2026-04-10 12:00 |
05:50:29.53 |
+19:57:24.4 |
HIP 27626 |
25.03 |
| 2026-04-11 00:00 |
05:50:33.56 |
+19:57:35.1 |
HIP 27626 |
24.63 |
| 2026-04-11 12:00 |
05:50:37.65 |
+19:57:45.7 |
HIP 27626 |
24.26 |
| 2026-04-12 00:00 |
05:50:41.80 |
+19:57:56.4 |
HIP 27626 |
23.93 |
| 2026-04-12 12:00 |
05:50:46.02 |
+19:58:07.0 |
HIP 27626 |
23.63 |
| 2026-04-13 00:00 |
05:50:50.29 |
+19:58:17.6 |
HIP 27747 |
22.76 |
| 2026-04-13 12:00 |
05:50:54.61 |
+19:58:28.1 |
HIP 27747 |
21.83 |
| 2026-04-14 00:00 |
05:50:59.00 |
+19:58:38.7 |
HIP 27747 |
20.90 |
| 2026-04-14 12:00 |
05:51:03.45 |
+19:58:49.2 |
HIP 27747 |
19.97 |
| 2026-04-15 00:00 |
05:51:07.95 |
+19:58:59.7 |
HIP 27747 |
19.04 |
| 2026-04-15 12:00 |
05:51:12.51 |
+19:59:10.1 |
HIP 27747 |
18.11 |
| 2026-04-16 00:00 |
05:51:17.13 |
+19:59:20.5 |
HIP 27747 |
17.19 |