메타데이터
| 항목 |
값 |
| Designation |
426P/PANSTARRS |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2018-01-07T12:47:27.709440Z |
| Orbit solution date (soln_date, UTC) |
2024-07-07T00:42:21Z |
| Obs used |
123 |
| NEO |
- |
| M1 |
17.400 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2019-01-08T09:04:12.288000Z |
| Discovery magnitude (MPC) |
20.40 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2019-10-23.0000000 |
| e |
0.16079592 |
| q (au) |
2.674492 |
| a (au) |
3.186938 |
| i (deg) |
17.774351 |
| Ω (om, deg) |
280.524873 |
| ω (w, deg) |
119.396158 |
| M (ma, deg) |
113.205437 |
밝기
산란 + 전체 선형
$$
M_a = (16.705 + 2.066\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
16.705 |
| n |
2.066 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
1.000 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-06-01 00:00 |
12:47:19.25 |
-27:22:35.4 |
HIP 62500 |
19.92 |
| 2026-06-01 12:00 |
12:47:16.62 |
-27:19:16.4 |
HIP 62500 |
22.66 |
| 2026-06-02 00:00 |
12:47:14.28 |
-27:15:58.5 |
HIP 62262 |
22.79 |
| 2026-06-02 12:00 |
12:47:12.23 |
-27:12:41.9 |
HIP 62262 |
22.97 |
| 2026-06-03 00:00 |
12:47:10.48 |
-27:09:26.5 |
HIP 62262 |
23.67 |
| 2026-06-03 12:00 |
12:47:09.02 |
-27:06:12.4 |
HIP 62262 |
24.83 |
| 2026-06-04 00:00 |
12:47:07.85 |
-27:02:59.5 |
HIP 62262 |
26.38 |
| 2026-06-04 12:00 |
12:47:06.98 |
-26:59:47.9 |
HIP 62262 |
28.25 |
| 2026-06-05 00:00 |
12:47:06.40 |
-26:56:37.6 |
HIP 62262 |
30.38 |
| 2026-06-05 12:00 |
12:47:06.10 |
-26:53:28.6 |
HIP 62262 |
32.70 |
| 2026-06-06 00:00 |
12:47:06.10 |
-26:50:21.0 |
HIP 62180 |
33.79 |
| 2026-06-06 12:00 |
12:47:06.39 |
-26:47:14.8 |
HIP 62180 |
34.36 |
| 2026-06-07 00:00 |
12:47:06.96 |
-26:44:09.9 |
HIP 62180 |
35.25 |
| 2026-06-07 12:00 |
12:47:07.83 |
-26:41:06.4 |
HIP 62180 |
36.44 |
| 2026-06-08 00:00 |
12:47:08.98 |
-26:38:04.4 |
HIP 62180 |
37.88 |
| 2026-06-08 12:00 |
12:47:10.41 |
-26:35:03.8 |
HIP 62392 |
35.49 |
| 2026-06-09 00:00 |
12:47:12.14 |
-26:32:04.6 |
HIP 62392 |
32.50 |
| 2026-06-09 12:00 |
12:47:14.15 |
-26:29:07.0 |
HIP 62392 |
29.54 |
| 2026-06-10 00:00 |
12:47:16.44 |
-26:26:10.8 |
HIP 62392 |
26.62 |
| 2026-06-10 12:00 |
12:47:19.02 |
-26:23:16.1 |
HIP 62392 |
23.74 |
| 2026-06-11 00:00 |
12:47:21.88 |
-26:20:23.0 |
HIP 62392 |
20.91 |
| 2026-06-11 12:00 |
12:47:25.02 |
-26:17:31.3 |
HIP 62392 |
18.16 |
| 2026-06-12 00:00 |
12:47:28.45 |
-26:14:41.3 |
HIP 62392 |
15.52 |
| 2026-06-12 12:00 |
12:47:32.15 |
-26:11:52.8 |
HIP 62392 |
13.06 |
| 2026-06-13 00:00 |
12:47:36.14 |
-26:09:05.9 |
HIP 62392 |
10.88 |
| 2026-06-13 12:00 |
12:47:40.40 |
-26:06:20.6 |
HIP 62392 |
9.19 |
| 2026-06-14 00:00 |
12:47:44.94 |
-26:03:37.0 |
HIP 62392 |
8.29 |
| 2026-06-14 12:00 |
12:47:49.76 |
-26:00:54.9 |
HIP 62392 |
8.43 |
| 2026-06-15 00:00 |
12:47:54.86 |
-25:58:14.5 |
HIP 62392 |
9.56 |
| 2026-06-15 12:00 |
12:48:00.23 |
-25:55:35.8 |
HIP 62392 |
11.39 |
| 2026-06-16 00:00 |
12:48:05.88 |
-25:52:58.7 |
HIP 62392 |
13.65 |
| 2026-06-16 12:00 |
12:48:11.80 |
-25:50:23.3 |
HIP 62392 |
16.15 |
| 2026-06-17 00:00 |
12:48:17.99 |
-25:47:49.6 |
HIP 62392 |
18.80 |
| 2026-06-17 12:00 |
12:48:24.45 |
-25:45:17.6 |
HIP 62392 |
21.54 |
| 2026-06-18 00:00 |
12:48:31.18 |
-25:42:47.3 |
HIP 62639 |
23.05 |
| 2026-06-18 12:00 |
12:48:38.18 |
-25:40:18.7 |
HIP 62639 |
22.58 |
| 2026-06-19 00:00 |
12:48:45.44 |
-25:37:51.8 |
HIP 62583 |
22.03 |
| 2026-06-19 12:00 |
12:48:52.97 |
-25:35:26.7 |
HIP 62583 |
19.13 |
| 2026-06-20 00:00 |
12:49:00.76 |
-25:33:03.3 |
HIP 62583 |
16.27 |
| 2026-06-20 12:00 |
12:49:08.82 |
-25:30:41.6 |
HIP 62583 |
13.46 |
| 2026-06-21 00:00 |
12:49:17.14 |
-25:28:21.7 |
HIP 62583 |
10.75 |
| 2026-06-21 12:00 |
12:49:25.71 |
-25:26:03.6 |
HIP 62583 |
8.29 |
| 2026-06-22 00:00 |
12:49:34.54 |
-25:23:47.2 |
HIP 62583 |
6.35 |