426P/PANSTARRS
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) |
| 2026-02-03 00:00 |
13:40:10.73 |
-30:58:17.1 |
HIP 66624 |
11.24 |
| 2026-02-03 12:00 |
13:40:17.84 |
-31:01:24.8 |
HIP 66624 |
14.18 |
| 2026-02-04 00:00 |
13:40:24.66 |
-31:04:31.4 |
HIP 66624 |
17.26 |
| 2026-02-04 12:00 |
13:40:31.20 |
-31:07:36.7 |
HIP 66624 |
20.40 |
| 2026-02-05 00:00 |
13:40:37.46 |
-31:10:40.8 |
HIP 66624 |
23.55 |
| 2026-02-05 12:00 |
13:40:43.43 |
-31:13:43.6 |
HIP 66624 |
26.69 |
| 2026-02-06 00:00 |
13:40:49.12 |
-31:16:45.2 |
HIP 66624 |
29.81 |
| 2026-02-06 12:00 |
13:40:54.52 |
-31:19:45.4 |
HIP 66624 |
32.91 |
| 2026-02-07 00:00 |
13:40:59.64 |
-31:22:44.4 |
HIP 66961 |
31.70 |
| 2026-02-07 12:00 |
13:41:04.46 |
-31:25:42.0 |
HIP 66961 |
30.44 |
| 2026-02-08 00:00 |
13:41:08.99 |
-31:28:38.3 |
HIP 66961 |
29.51 |
| 2026-02-08 12:00 |
13:41:13.23 |
-31:31:33.3 |
HIP 66961 |
28.95 |
| 2026-02-09 00:00 |
13:41:17.17 |
-31:34:26.8 |
HIP 66961 |
28.76 |
| 2026-02-09 12:00 |
13:41:20.81 |
-31:37:19.0 |
HIP 66965 |
28.68 |
| 2026-02-10 00:00 |
13:41:24.16 |
-31:40:09.8 |
HIP 66965 |
28.96 |
| 2026-02-10 12:00 |
13:41:27.22 |
-31:42:59.1 |
HIP 66965 |
29.57 |
| 2026-02-11 00:00 |
13:41:29.97 |
-31:45:46.9 |
HIP 66965 |
30.49 |
| 2026-02-11 12:00 |
13:41:32.42 |
-31:48:33.3 |
HIP 66965 |
31.67 |
| 2026-02-12 00:00 |
13:41:34.57 |
-31:51:18.3 |
HIP 66965 |
33.08 |
| 2026-02-12 12:00 |
13:41:36.41 |
-31:54:01.7 |
HIP 67026 |
33.00 |
| 2026-02-13 00:00 |
13:41:37.95 |
-31:56:43.5 |
HIP 67026 |
33.20 |
| 2026-02-13 12:00 |
13:41:39.19 |
-31:59:23.8 |
HIP 67026 |
33.66 |
| 2026-02-14 00:00 |
13:41:40.12 |
-32:02:02.6 |
HIP 67026 |
34.38 |
| 2026-02-14 12:00 |
13:41:40.74 |
-32:04:39.8 |
HIP 67026 |
35.33 |
| 2026-02-15 00:00 |
13:41:41.06 |
-32:07:15.3 |
HIP 66916 |
36.02 |
| 2026-02-15 12:00 |
13:41:41.06 |
-32:09:49.3 |
HIP 66916 |
33.69 |
| 2026-02-16 00:00 |
13:41:40.76 |
-32:12:21.5 |
HIP 66916 |
31.45 |
| 2026-02-16 12:00 |
13:41:40.15 |
-32:14:52.1 |
HIP 66916 |
29.31 |
| 2026-02-17 00:00 |
13:41:39.22 |
-32:17:21.1 |
HIP 66916 |
27.30 |
| 2026-02-17 12:00 |
13:41:37.98 |
-32:19:48.3 |
HIP 66916 |
25.43 |
| 2026-02-18 00:00 |
13:41:36.44 |
-32:22:13.8 |
HIP 66916 |
23.74 |
| 2026-02-18 12:00 |
13:41:34.58 |
-32:24:37.5 |
HIP 66916 |
22.26 |
| 2026-02-19 00:00 |
13:41:32.40 |
-32:26:59.4 |
HIP 66916 |
21.02 |
| 2026-02-19 12:00 |
13:41:29.92 |
-32:29:19.6 |
HIP 66916 |
20.07 |
| 2026-02-20 00:00 |
13:41:27.12 |
-32:31:38.0 |
HIP 66916 |
19.45 |
| 2026-02-20 12:00 |
13:41:24.01 |
-32:33:54.5 |
HIP 66916 |
19.17 |
| 2026-02-21 00:00 |
13:41:20.58 |
-32:36:09.1 |
HIP 66916 |
19.25 |
| 2026-02-21 12:00 |
13:41:16.84 |
-32:38:21.9 |
HIP 66916 |
19.69 |
| 2026-02-22 00:00 |
13:41:12.79 |
-32:40:32.8 |
HIP 66916 |
20.45 |
| 2026-02-22 12:00 |
13:41:08.43 |
-32:42:41.8 |
HIP 66916 |
21.51 |
| 2026-02-23 00:00 |
13:41:03.75 |
-32:44:48.9 |
HIP 66916 |
22.81 |
| 2026-02-23 12:00 |
13:40:58.76 |
-32:46:54.0 |
HIP 66916 |
24.33 |
| 2026-02-24 00:00 |
13:40:53.46 |
-32:48:57.1 |
HIP 66916 |
26.01 |