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) |
| 2026-05-12 00:00 |
12:53:06.84 |
-29:45:51.6 |
HIP 62885 |
15.23 |
| 2026-05-12 12:00 |
12:52:52.54 |
-29:42:10.7 |
HIP 62885 |
19.49 |
| 2026-05-13 00:00 |
12:52:38.52 |
-29:38:29.5 |
HIP 62885 |
23.94 |
| 2026-05-13 12:00 |
12:52:24.77 |
-29:34:48.3 |
HIP 62939 |
25.24 |
| 2026-05-14 00:00 |
12:52:11.29 |
-29:31:06.8 |
HIP 62713 |
24.88 |
| 2026-05-14 12:00 |
12:51:58.08 |
-29:27:25.4 |
HIP 62713 |
20.21 |
| 2026-05-15 00:00 |
12:51:45.16 |
-29:23:43.8 |
HIP 62713 |
15.58 |
| 2026-05-15 12:00 |
12:51:32.51 |
-29:20:02.3 |
HIP 62713 |
10.99 |
| 2026-05-16 00:00 |
12:51:20.15 |
-29:16:20.9 |
HIP 62713 |
6.44 |
| 2026-05-16 12:00 |
12:51:08.07 |
-29:12:39.5 |
HIP 62713 |
2.05 |
| 2026-05-17 00:00 |
12:50:56.27 |
-29:08:58.3 |
HIP 62713 |
2.77 |
| 2026-05-17 12:00 |
12:50:44.76 |
-29:05:17.3 |
HIP 62713 |
7.14 |
| 2026-05-18 00:00 |
12:50:33.54 |
-29:01:36.5 |
HIP 62713 |
11.54 |
| 2026-05-18 12:00 |
12:50:22.61 |
-28:57:55.9 |
HIP 62713 |
15.91 |
| 2026-05-19 00:00 |
12:50:11.97 |
-28:54:15.7 |
HIP 62713 |
20.25 |
| 2026-05-19 12:00 |
12:50:01.62 |
-28:50:35.8 |
HIP 62713 |
24.55 |
| 2026-05-20 00:00 |
12:49:51.56 |
-28:46:56.3 |
HIP 62713 |
28.81 |
| 2026-05-20 12:00 |
12:49:41.80 |
-28:43:17.3 |
HIP 62691 |
27.97 |
| 2026-05-21 00:00 |
12:49:32.33 |
-28:39:38.7 |
HIP 62691 |
26.15 |
| 2026-05-21 12:00 |
12:49:23.16 |
-28:36:00.6 |
HIP 62691 |
24.86 |
| 2026-05-22 00:00 |
12:49:14.28 |
-28:32:23.0 |
HIP 62691 |
24.18 |
| 2026-05-22 12:00 |
12:49:05.70 |
-28:28:46.1 |
HIP 62691 |
24.14 |
| 2026-05-23 00:00 |
12:48:57.42 |
-28:25:09.7 |
HIP 62691 |
24.72 |
| 2026-05-23 12:00 |
12:48:49.44 |
-28:21:34.0 |
HIP 62691 |
25.86 |
| 2026-05-24 00:00 |
12:48:41.75 |
-28:17:58.9 |
HIP 62691 |
27.48 |
| 2026-05-24 12:00 |
12:48:34.36 |
-28:14:24.6 |
HIP 62691 |
29.48 |
| 2026-05-25 00:00 |
12:48:27.27 |
-28:10:51.0 |
HIP 62691 |
31.77 |
| 2026-05-25 12:00 |
12:48:20.47 |
-28:07:18.2 |
HIP 62625 |
30.35 |
| 2026-05-26 00:00 |
12:48:13.98 |
-28:03:46.2 |
HIP 62500 |
28.07 |
| 2026-05-26 12:00 |
12:48:07.78 |
-28:00:15.0 |
HIP 62500 |
24.76 |
| 2026-05-27 00:00 |
12:48:01.88 |
-27:56:44.7 |
HIP 62500 |
21.60 |
| 2026-05-27 12:00 |
12:47:56.28 |
-27:53:15.3 |
HIP 62500 |
18.65 |
| 2026-05-28 00:00 |
12:47:50.98 |
-27:49:46.8 |
HIP 62500 |
15.99 |
| 2026-05-28 12:00 |
12:47:45.97 |
-27:46:19.3 |
HIP 62500 |
13.78 |
| 2026-05-29 00:00 |
12:47:41.27 |
-27:42:52.7 |
HIP 62500 |
12.22 |
| 2026-05-29 12:00 |
12:47:36.86 |
-27:39:27.2 |
HIP 62500 |
11.55 |
| 2026-05-30 00:00 |
12:47:32.74 |
-27:36:02.6 |
HIP 62500 |
11.88 |
| 2026-05-30 12:00 |
12:47:28.93 |
-27:32:39.2 |
HIP 62500 |
13.12 |
| 2026-05-31 00:00 |
12:47:25.41 |
-27:29:16.8 |
HIP 62500 |
15.02 |
| 2026-05-31 12:00 |
12:47:22.18 |
-27:25:55.5 |
HIP 62500 |
17.34 |
| 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 |