메타데이터
| 항목 |
값 |
| Designation |
C/1964 P1 (Everhart) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1964-08-23T04:28:19.128000Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:16Z |
| Obs used |
40 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1964-10-14.0000000 |
| e |
0.99649619 |
| q (au) |
1.259279 |
| a (au) |
359.402401 |
| i (deg) |
67.969012 |
| Ω (om, deg) |
280.445182 |
| ω (w, deg) |
20.685810 |
| M (ma, deg) |
0.007495 |
밝기
산란 + 전체 선형
$$
M_a = (5.997 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.997 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
06:52:29.21 |
+15:45:35.9 |
HIP 33039 |
10.94 |
| 2026-05-12 12:00 |
06:52:30.12 |
+15:45:36.4 |
HIP 33039 |
10.80 |
| 2026-05-13 00:00 |
06:52:31.03 |
+15:45:36.9 |
HIP 33039 |
10.66 |
| 2026-05-13 12:00 |
06:52:31.95 |
+15:45:37.3 |
HIP 33039 |
10.52 |
| 2026-05-14 00:00 |
06:52:32.88 |
+15:45:37.7 |
HIP 33039 |
10.39 |
| 2026-05-14 12:00 |
06:52:33.81 |
+15:45:38.1 |
HIP 33039 |
10.25 |
| 2026-05-15 00:00 |
06:52:34.76 |
+15:45:38.4 |
HIP 33039 |
10.12 |
| 2026-05-15 12:00 |
06:52:35.72 |
+15:45:38.8 |
HIP 33039 |
9.99 |
| 2026-05-16 00:00 |
06:52:36.68 |
+15:45:39.0 |
HIP 33039 |
9.86 |
| 2026-05-16 12:00 |
06:52:37.66 |
+15:45:39.3 |
HIP 33039 |
9.73 |
| 2026-05-17 00:00 |
06:52:38.64 |
+15:45:39.6 |
HIP 33039 |
9.61 |
| 2026-05-17 12:00 |
06:52:39.63 |
+15:45:39.8 |
HIP 33039 |
9.49 |
| 2026-05-18 00:00 |
06:52:40.63 |
+15:45:40.0 |
HIP 33039 |
9.37 |
| 2026-05-18 12:00 |
06:52:41.64 |
+15:45:40.1 |
HIP 33039 |
9.26 |
| 2026-05-19 00:00 |
06:52:42.66 |
+15:45:40.2 |
HIP 33039 |
9.15 |
| 2026-05-19 12:00 |
06:52:43.68 |
+15:45:40.4 |
HIP 33039 |
9.04 |
| 2026-05-20 00:00 |
06:52:44.72 |
+15:45:40.4 |
HIP 33039 |
8.94 |
| 2026-05-20 12:00 |
06:52:45.76 |
+15:45:40.5 |
HIP 33039 |
8.84 |
| 2026-05-21 00:00 |
06:52:46.81 |
+15:45:40.5 |
HIP 33039 |
8.75 |
| 2026-05-21 12:00 |
06:52:47.87 |
+15:45:40.5 |
HIP 33039 |
8.66 |
| 2026-05-22 00:00 |
06:52:48.93 |
+15:45:40.5 |
HIP 33039 |
8.58 |
| 2026-05-22 12:00 |
06:52:50.01 |
+15:45:40.4 |
HIP 33039 |
8.50 |
| 2026-05-23 00:00 |
06:52:51.09 |
+15:45:40.3 |
HIP 33039 |
8.43 |
| 2026-05-23 12:00 |
06:52:52.18 |
+15:45:40.2 |
HIP 33039 |
8.37 |
| 2026-05-24 00:00 |
06:52:53.28 |
+15:45:40.1 |
HIP 33039 |
8.31 |
| 2026-05-24 12:00 |
06:52:54.38 |
+15:45:39.9 |
HIP 33039 |
8.26 |
| 2026-05-25 00:00 |
06:52:55.49 |
+15:45:39.7 |
HIP 33039 |
8.22 |
| 2026-05-25 12:00 |
06:52:56.61 |
+15:45:39.5 |
HIP 33039 |
8.19 |
| 2026-05-26 00:00 |
06:52:57.74 |
+15:45:39.2 |
HIP 33039 |
8.17 |
| 2026-05-26 12:00 |
06:52:58.87 |
+15:45:39.0 |
HIP 33039 |
8.15 |
| 2026-05-27 00:00 |
06:53:00.01 |
+15:45:38.6 |
HIP 33039 |
8.14 |
| 2026-05-27 12:00 |
06:53:01.16 |
+15:45:38.3 |
HIP 33039 |
8.14 |
| 2026-05-28 00:00 |
06:53:02.32 |
+15:45:38.0 |
HIP 33039 |
8.15 |
| 2026-05-28 12:00 |
06:53:03.48 |
+15:45:37.6 |
HIP 33039 |
8.17 |
| 2026-05-29 00:00 |
06:53:04.65 |
+15:45:37.2 |
HIP 33039 |
8.20 |
| 2026-05-29 12:00 |
06:53:05.82 |
+15:45:36.7 |
HIP 33039 |
8.24 |
| 2026-05-30 00:00 |
06:53:07.00 |
+15:45:36.3 |
HIP 33039 |
8.29 |
| 2026-05-30 12:00 |
06:53:08.19 |
+15:45:35.8 |
HIP 33039 |
8.34 |
| 2026-05-31 00:00 |
06:53:09.39 |
+15:45:35.2 |
HIP 33039 |
8.41 |
| 2026-05-31 12:00 |
06:53:10.59 |
+15:45:34.7 |
HIP 33039 |
8.49 |
| 2026-06-01 00:00 |
06:53:11.80 |
+15:45:34.1 |
HIP 33039 |
8.57 |
| 2026-06-01 12:00 |
06:53:13.01 |
+15:45:33.5 |
HIP 33039 |
8.66 |
| 2026-06-02 00:00 |
06:53:14.23 |
+15:45:32.9 |
HIP 33039 |
8.77 |