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) |
| 2026-07-29 00:00 |
06:17:55.39 |
+20:13:19.5 |
HIP 29897 |
13.53 |
| 2026-07-29 12:00 |
06:18:03.04 |
+20:13:16.4 |
HIP 29897 |
14.08 |
| 2026-07-30 00:00 |
06:18:10.66 |
+20:13:13.2 |
HIP 29897 |
14.84 |
| 2026-07-30 12:00 |
06:18:18.25 |
+20:13:10.0 |
HIP 29897 |
15.75 |
| 2026-07-31 00:00 |
06:18:25.81 |
+20:13:06.7 |
HIP 29897 |
16.80 |
| 2026-07-31 12:00 |
06:18:33.34 |
+20:13:03.4 |
HIP 29897 |
17.97 |
| 2026-08-01 00:00 |
06:18:40.84 |
+20:13:00.0 |
HIP 29897 |
19.21 |
| 2026-08-01 12:00 |
06:18:48.30 |
+20:12:56.6 |
HIP 29897 |
20.53 |
| 2026-08-02 00:00 |
06:18:55.74 |
+20:12:53.1 |
HIP 29897 |
21.91 |
| 2026-08-02 12:00 |
06:19:03.14 |
+20:12:49.6 |
HIP 30041 |
22.20 |
| 2026-08-03 00:00 |
06:19:10.51 |
+20:12:46.1 |
HIP 30041 |
22.08 |
| 2026-08-03 12:00 |
06:19:17.84 |
+20:12:42.5 |
HIP 30041 |
22.09 |
| 2026-08-04 00:00 |
06:19:25.14 |
+20:12:38.8 |
HIP 30041 |
22.23 |
| 2026-08-04 12:00 |
06:19:32.40 |
+20:12:35.1 |
HIP 30110 |
22.19 |
| 2026-08-05 00:00 |
06:19:39.64 |
+20:12:31.4 |
HIP 30110 |
21.48 |
| 2026-08-05 12:00 |
06:19:46.83 |
+20:12:27.6 |
HIP 30110 |
20.87 |
| 2026-08-06 00:00 |
06:19:53.99 |
+20:12:23.8 |
HIP 30110 |
20.40 |
| 2026-08-06 12:00 |
06:20:01.11 |
+20:12:19.9 |
HIP 30110 |
20.05 |
| 2026-08-07 00:00 |
06:20:08.20 |
+20:12:16.0 |
HIP 30110 |
19.84 |
| 2026-08-07 12:00 |
06:20:15.25 |
+20:12:12.1 |
HIP 30110 |
19.77 |
| 2026-08-08 00:00 |
06:20:22.27 |
+20:12:08.1 |
HIP 30110 |
19.83 |
| 2026-08-08 12:00 |
06:20:29.24 |
+20:12:04.1 |
HIP 30110 |
20.03 |
| 2026-08-09 00:00 |
06:20:36.18 |
+20:12:00.0 |
HIP 30110 |
20.35 |
| 2026-08-09 12:00 |
06:20:43.08 |
+20:11:55.9 |
HIP 30110 |
20.80 |
| 2026-08-10 00:00 |
06:20:49.94 |
+20:11:51.8 |
HIP 30229 |
21.25 |
| 2026-08-10 12:00 |
06:20:56.76 |
+20:11:47.6 |
HIP 30229 |
20.43 |
| 2026-08-11 00:00 |
06:21:03.54 |
+20:11:43.4 |
HIP 30229 |
19.70 |
| 2026-08-11 12:00 |
06:21:10.28 |
+20:11:39.1 |
HIP 30229 |
19.08 |
| 2026-08-12 00:00 |
06:21:16.98 |
+20:11:34.9 |
HIP 30229 |
18.58 |
| 2026-08-12 12:00 |
06:21:23.63 |
+20:11:30.6 |
HIP 30229 |
18.21 |
| 2026-08-13 00:00 |
06:21:30.25 |
+20:11:26.2 |
HIP 30229 |
17.96 |
| 2026-08-13 12:00 |
06:21:36.82 |
+20:11:21.9 |
HIP 30229 |
17.84 |
| 2026-08-14 00:00 |
06:21:43.35 |
+20:11:17.5 |
HIP 30229 |
17.86 |
| 2026-08-14 12:00 |
06:21:49.84 |
+20:11:13.0 |
HIP 30229 |
18.00 |
| 2026-08-15 00:00 |
06:21:56.28 |
+20:11:08.6 |
HIP 30229 |
18.27 |
| 2026-08-15 12:00 |
06:22:02.68 |
+20:11:04.1 |
HIP 30229 |
18.66 |
| 2026-08-16 00:00 |
06:22:09.04 |
+20:10:59.6 |
HIP 30229 |
19.15 |
| 2026-08-16 12:00 |
06:22:15.35 |
+20:10:55.0 |
HIP 30229 |
19.73 |
| 2026-08-17 00:00 |
06:22:21.62 |
+20:10:50.5 |
HIP 30393 |
20.18 |
| 2026-08-17 12:00 |
06:22:27.84 |
+20:10:45.9 |
HIP 30393 |
19.12 |
| 2026-08-18 00:00 |
06:22:34.01 |
+20:10:41.3 |
HIP 30393 |
18.12 |
| 2026-08-18 12:00 |
06:22:40.14 |
+20:10:36.7 |
HIP 30393 |
17.19 |
| 2026-08-19 00:00 |
06:22:46.22 |
+20:10:32.0 |
HIP 30393 |
16.35 |