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) |
| 2026-05-12 00:00 |
05:56:27.07 |
+20:07:24.0 |
HIP 28041 |
9.42 |
| 2026-05-12 12:00 |
05:56:34.19 |
+20:07:31.9 |
HIP 28041 |
10.98 |
| 2026-05-13 00:00 |
05:56:41.34 |
+20:07:39.8 |
HIP 28041 |
12.57 |
| 2026-05-13 12:00 |
05:56:48.54 |
+20:07:47.5 |
HIP 28041 |
14.19 |
| 2026-05-14 00:00 |
05:56:55.77 |
+20:07:55.3 |
HIP 28041 |
15.84 |
| 2026-05-14 12:00 |
05:57:03.03 |
+20:08:02.9 |
HIP 28041 |
17.51 |
| 2026-05-15 00:00 |
05:57:10.33 |
+20:08:10.5 |
HIP 28041 |
19.19 |
| 2026-05-15 12:00 |
05:57:17.67 |
+20:08:18.1 |
HIP 28041 |
20.88 |
| 2026-05-16 00:00 |
05:57:25.04 |
+20:08:25.5 |
HIP 28294 |
19.76 |
| 2026-05-16 12:00 |
05:57:32.44 |
+20:08:32.9 |
HIP 28294 |
18.04 |
| 2026-05-17 00:00 |
05:57:39.88 |
+20:08:40.3 |
HIP 28294 |
16.31 |
| 2026-05-17 12:00 |
05:57:47.35 |
+20:08:47.5 |
HIP 28294 |
14.58 |
| 2026-05-18 00:00 |
05:57:54.85 |
+20:08:54.7 |
HIP 28294 |
12.84 |
| 2026-05-18 12:00 |
05:58:02.38 |
+20:09:01.9 |
HIP 28294 |
11.12 |
| 2026-05-19 00:00 |
05:58:09.95 |
+20:09:08.9 |
HIP 28294 |
9.40 |
| 2026-05-19 12:00 |
05:58:17.55 |
+20:09:15.9 |
HIP 28294 |
7.70 |
| 2026-05-20 00:00 |
05:58:25.18 |
+20:09:22.9 |
HIP 28294 |
6.05 |
| 2026-05-20 12:00 |
05:58:32.84 |
+20:09:29.7 |
HIP 28294 |
4.51 |
| 2026-05-21 00:00 |
05:58:40.52 |
+20:09:36.5 |
HIP 28294 |
3.24 |
| 2026-05-21 12:00 |
05:58:48.24 |
+20:09:43.2 |
HIP 28294 |
2.69 |
| 2026-05-22 00:00 |
05:58:55.99 |
+20:09:49.9 |
HIP 28294 |
3.25 |
| 2026-05-22 12:00 |
05:59:03.76 |
+20:09:56.5 |
HIP 28294 |
4.54 |
| 2026-05-23 00:00 |
05:59:11.57 |
+20:10:03.0 |
HIP 28294 |
6.11 |
| 2026-05-23 12:00 |
05:59:19.40 |
+20:10:09.4 |
HIP 28294 |
7.81 |
| 2026-05-24 00:00 |
05:59:27.25 |
+20:10:15.8 |
HIP 28294 |
9.56 |
| 2026-05-24 12:00 |
05:59:35.14 |
+20:10:22.1 |
HIP 28294 |
11.36 |
| 2026-05-25 00:00 |
05:59:43.05 |
+20:10:28.3 |
HIP 28425 |
12.68 |
| 2026-05-25 12:00 |
05:59:50.98 |
+20:10:34.4 |
HIP 28425 |
11.96 |
| 2026-05-26 00:00 |
05:59:58.94 |
+20:10:40.5 |
HIP 28425 |
11.50 |
| 2026-05-26 12:00 |
06:00:06.93 |
+20:10:46.5 |
HIP 28425 |
11.34 |
| 2026-05-27 00:00 |
06:00:14.94 |
+20:10:52.5 |
HIP 28425 |
11.48 |
| 2026-05-27 12:00 |
06:00:22.97 |
+20:10:58.3 |
HIP 28425 |
11.93 |
| 2026-05-28 00:00 |
06:00:31.03 |
+20:11:04.1 |
HIP 28425 |
12.64 |
| 2026-05-28 12:00 |
06:00:39.11 |
+20:11:09.8 |
HIP 28425 |
13.58 |
| 2026-05-29 00:00 |
06:00:47.22 |
+20:11:15.5 |
HIP 28425 |
14.72 |
| 2026-05-29 12:00 |
06:00:55.34 |
+20:11:21.1 |
HIP 28425 |
16.00 |
| 2026-05-30 00:00 |
06:01:03.49 |
+20:11:26.6 |
HIP 28425 |
17.40 |
| 2026-05-30 12:00 |
06:01:11.66 |
+20:11:32.0 |
HIP 28425 |
18.90 |
| 2026-05-31 00:00 |
06:01:19.85 |
+20:11:37.3 |
HIP 28425 |
20.46 |
| 2026-05-31 12:00 |
06:01:28.07 |
+20:11:42.6 |
HIP 28425 |
22.09 |
| 2026-06-01 00:00 |
06:01:36.30 |
+20:11:47.8 |
HIP 28425 |
23.77 |
| 2026-06-01 12:00 |
06:01:44.55 |
+20:11:52.9 |
HIP 28425 |
25.49 |
| 2026-06-02 00:00 |
06:01:52.82 |
+20:11:58.0 |
HIP 28495 |
26.87 |