메타데이터
| 항목 |
값 |
| Designation |
69P/Taylor |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2019-03-18T11:29:12.543360Z |
| Orbit solution date (soln_date, UTC) |
2024-04-16T11:21:12Z |
| Obs used |
46 |
| NEO |
- |
| M1 |
17.300 |
| K1 |
4.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2016-06-18.0000000 |
| e |
0.41360765 |
| q (au) |
2.280445 |
| a (au) |
3.888940 |
| i (deg) |
22.041043 |
| Ω (om, deg) |
104.853333 |
| ω (w, deg) |
343.666052 |
| M (ma, deg) |
231.036957 |
밝기
산란 + 전체 선형
$$
M_a = (19.538 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
19.538 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.771 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-05-12 00:00 |
02:41:30.30 |
-00:32:49.8 |
HIP 12530 |
9.79 |
| 2026-05-12 12:00 |
02:42:22.19 |
-00:28:02.5 |
HIP 12728 |
20.10 |
| 2026-05-13 00:00 |
02:43:14.13 |
-00:23:15.9 |
HIP 12728 |
6.28 |
| 2026-05-13 12:00 |
02:44:06.12 |
-00:18:30.2 |
HIP 12728 |
7.59 |
| 2026-05-14 00:00 |
02:44:58.15 |
-00:13:45.2 |
HIP 12728 |
21.43 |
| 2026-05-14 12:00 |
02:45:50.23 |
-00:09:01.0 |
HIP 12935 |
16.47 |
| 2026-05-15 00:00 |
02:46:42.35 |
-00:04:17.7 |
HIP 12935 |
20.04 |
| 2026-05-15 12:00 |
02:47:34.51 |
+00:00:24.9 |
HIP 13117 |
17.25 |
| 2026-05-16 00:00 |
02:48:26.73 |
+00:05:06.6 |
HIP 13117 |
5.13 |
| 2026-05-16 12:00 |
02:49:18.98 |
+00:09:47.5 |
HIP 13117 |
11.82 |
| 2026-05-17 00:00 |
02:50:11.28 |
+00:14:27.6 |
HIP 13326 |
21.64 |
| 2026-05-17 12:00 |
02:51:03.62 |
+00:19:06.8 |
HIP 13326 |
15.36 |
| 2026-05-18 00:00 |
02:51:56.01 |
+00:23:45.2 |
HIP 13326 |
19.72 |
| 2026-05-18 12:00 |
02:52:48.43 |
+00:28:22.7 |
HIP 13373 |
24.15 |
| 2026-05-19 00:00 |
02:53:40.90 |
+00:32:59.4 |
HIP 13598 |
24.25 |
| 2026-05-19 12:00 |
02:54:33.41 |
+00:37:35.2 |
HIP 13598 |
15.25 |
| 2026-05-20 00:00 |
02:55:25.96 |
+00:42:10.2 |
HIP 13680 |
16.14 |
| 2026-05-20 12:00 |
02:56:18.55 |
+00:46:44.2 |
HIP 13680 |
15.45 |
| 2026-05-21 00:00 |
02:57:11.19 |
+00:51:17.5 |
HIP 13765 |
24.42 |
| 2026-05-21 12:00 |
02:58:03.86 |
+00:55:49.8 |
HIP 13917 |
26.21 |
| 2026-05-22 00:00 |
02:58:56.57 |
+01:00:21.2 |
HIP 13917 |
15.18 |
| 2026-05-22 12:00 |
02:59:49.32 |
+01:04:51.8 |
HIP 14003 |
9.66 |
| 2026-05-23 00:00 |
03:00:42.11 |
+01:09:21.5 |
HIP 14077 |
10.85 |
| 2026-05-23 12:00 |
03:01:34.94 |
+01:13:50.3 |
HIP 14077 |
5.05 |
| 2026-05-24 00:00 |
03:02:27.81 |
+01:18:18.2 |
HIP 14204 |
11.34 |
| 2026-05-24 12:00 |
03:03:20.71 |
+01:22:45.2 |
HIP 14204 |
2.62 |
| 2026-05-25 00:00 |
03:04:13.66 |
+01:27:11.3 |
HIP 14231 |
11.70 |
| 2026-05-25 12:00 |
03:05:06.64 |
+01:31:36.4 |
HIP 14371 |
7.78 |
| 2026-05-26 00:00 |
03:05:59.66 |
+01:36:00.7 |
HIP 14371 |
9.32 |
| 2026-05-26 12:00 |
03:06:52.72 |
+01:40:24.1 |
HIP 14445 |
18.82 |
| 2026-05-27 00:00 |
03:07:45.81 |
+01:44:46.5 |
HIP 14534 |
20.47 |
| 2026-05-27 12:00 |
03:08:38.95 |
+01:49:08.0 |
HIP 14696 |
27.05 |
| 2026-05-28 00:00 |
03:09:32.12 |
+01:53:28.6 |
HIP 14696 |
24.89 |
| 2026-05-28 12:00 |
03:10:25.33 |
+01:57:48.3 |
HIP 14786 |
22.45 |
| 2026-05-29 00:00 |
03:11:18.57 |
+02:02:07.1 |
HIP 14786 |
17.80 |
| 2026-05-29 12:00 |
03:12:11.85 |
+02:06:24.9 |
HIP 14786 |
22.84 |
| 2026-05-30 00:00 |
03:13:05.17 |
+02:10:41.7 |
HIP 15076 |
25.42 |
| 2026-05-30 12:00 |
03:13:58.52 |
+02:14:57.7 |
HIP 15076 |
13.76 |
| 2026-05-31 00:00 |
03:14:51.92 |
+02:19:12.6 |
HIP 15076 |
11.17 |
| 2026-05-31 12:00 |
03:15:45.34 |
+02:23:26.7 |
HIP 15264 |
17.32 |
| 2026-06-01 00:00 |
03:16:38.81 |
+02:27:39.7 |
HIP 15264 |
8.18 |
| 2026-06-01 12:00 |
03:17:32.30 |
+02:31:51.9 |
HIP 15264 |
15.03 |
| 2026-06-02 00:00 |
03:18:25.84 |
+02:36:03.0 |
HIP 15467 |
17.25 |