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 |
0.999 |
| 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) |
| 2026-09-20 00:00 |
06:32:23.87 |
+10:45:03.8 |
HIP 31111 |
23.56 |
| 2026-09-20 12:00 |
06:33:09.14 |
+10:45:47.2 |
HIP 31235 |
26.47 |
| 2026-09-21 00:00 |
06:33:54.24 |
+10:46:30.6 |
HIP 31465 |
23.26 |
| 2026-09-21 12:00 |
06:34:39.18 |
+10:47:13.9 |
HIP 31465 |
12.33 |
| 2026-09-22 00:00 |
06:35:23.96 |
+10:47:57.1 |
HIP 31465 |
2.75 |
| 2026-09-22 12:00 |
06:36:08.58 |
+10:48:40.4 |
HIP 31465 |
10.26 |
| 2026-09-23 00:00 |
06:36:53.03 |
+10:49:23.6 |
HIP 31662 |
10.93 |
| 2026-09-23 12:00 |
06:37:37.31 |
+10:50:06.9 |
HIP 31662 |
1.09 |
| 2026-09-24 00:00 |
06:38:21.43 |
+10:50:50.3 |
HIP 31662 |
10.93 |
| 2026-09-24 12:00 |
06:39:05.37 |
+10:51:33.6 |
HIP 31795 |
12.93 |
| 2026-09-25 00:00 |
06:39:49.15 |
+10:52:17.1 |
HIP 31912 |
4.92 |
| 2026-09-25 12:00 |
06:40:32.74 |
+10:53:00.7 |
HIP 31912 |
5.83 |
| 2026-09-26 00:00 |
06:41:16.17 |
+10:53:44.4 |
HIP 32012 |
6.46 |
| 2026-09-26 12:00 |
06:41:59.42 |
+10:54:28.2 |
HIP 32012 |
11.83 |
| 2026-09-27 00:00 |
06:42:42.49 |
+10:55:12.2 |
HIP 32220 |
18.74 |
| 2026-09-27 12:00 |
06:43:25.37 |
+10:55:56.3 |
HIP 32220 |
13.30 |
| 2026-09-28 00:00 |
06:44:08.08 |
+10:56:40.7 |
HIP 32220 |
14.99 |
| 2026-09-28 12:00 |
06:44:50.60 |
+10:57:25.2 |
HIP 32337 |
12.44 |
| 2026-09-29 00:00 |
06:45:32.94 |
+10:58:10.0 |
HIP 32337 |
15.43 |
| 2026-09-29 12:00 |
06:46:15.09 |
+10:58:55.1 |
HIP 32506 |
12.33 |
| 2026-09-30 00:00 |
06:46:57.05 |
+10:59:40.4 |
HIP 32506 |
3.52 |
| 2026-09-30 12:00 |
06:47:38.81 |
+11:00:26.1 |
HIP 32506 |
9.23 |
| 2026-10-01 00:00 |
06:48:20.39 |
+11:01:12.0 |
HIP 32606 |
15.47 |
| 2026-10-01 12:00 |
06:49:01.76 |
+11:01:58.3 |
HIP 32606 |
20.38 |
| 2026-10-02 00:00 |
06:49:42.94 |
+11:02:45.0 |
HIP 32606 |
28.23 |
| 2026-10-02 12:00 |
06:50:23.92 |
+11:03:32.1 |
HIP 32895 |
24.74 |
| 2026-10-03 00:00 |
06:51:04.69 |
+11:04:19.5 |
HIP 32962 |
20.58 |
| 2026-10-03 12:00 |
06:51:45.26 |
+11:05:07.4 |
HIP 32962 |
17.29 |
| 2026-10-04 00:00 |
06:52:25.62 |
+11:05:55.8 |
HIP 33082 |
15.22 |
| 2026-10-04 12:00 |
06:53:05.76 |
+11:06:44.7 |
HIP 33082 |
8.04 |
| 2026-10-05 00:00 |
06:53:45.70 |
+11:07:34.0 |
HIP 33121 |
6.50 |
| 2026-10-05 12:00 |
06:54:25.42 |
+11:08:23.9 |
HIP 33192 |
5.15 |
| 2026-10-06 00:00 |
06:55:04.93 |
+11:09:14.4 |
HIP 33192 |
10.69 |
| 2026-10-06 12:00 |
06:55:44.21 |
+11:10:05.4 |
HIP 33192 |
19.73 |
| 2026-10-07 00:00 |
06:56:23.27 |
+11:10:57.1 |
HIP 33223 |
27.74 |
| 2026-10-07 12:00 |
06:57:02.11 |
+11:11:49.4 |
HIP 33223 |
35.76 |
| 2026-10-08 00:00 |
06:57:40.72 |
+11:12:42.4 |
HIP 33667 |
34.75 |
| 2026-10-08 12:00 |
06:58:19.10 |
+11:13:36.1 |
HIP 33667 |
27.96 |
| 2026-10-09 00:00 |
06:58:57.25 |
+11:14:30.4 |
HIP 33667 |
23.17 |
| 2026-10-09 12:00 |
06:59:35.16 |
+11:15:25.6 |
HIP 33667 |
21.67 |
| 2026-10-10 00:00 |
07:00:12.84 |
+11:16:21.5 |
HIP 33667 |
24.01 |
| 2026-10-10 12:00 |
07:00:50.28 |
+11:17:18.2 |
HIP 33667 |
29.23 |
| 2026-10-11 00:00 |
07:01:27.48 |
+11:18:15.8 |
HIP 33810 |
28.54 |