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) |
| 2026-03-26 00:00 |
01:24:03.70 |
-08:48:16.4 |
HIP 6690 |
32.92 |
| 2026-03-26 12:00 |
01:24:50.45 |
-08:42:39.8 |
HIP 6690 |
20.24 |
| 2026-03-27 00:00 |
01:25:37.28 |
-08:37:03.5 |
HIP 6690 |
8.11 |
| 2026-03-27 12:00 |
01:26:24.16 |
-08:31:27.4 |
HIP 6740 |
6.86 |
| 2026-03-28 00:00 |
01:27:11.11 |
-08:25:51.7 |
HIP 6740 |
11.06 |
| 2026-03-28 12:00 |
01:27:58.12 |
-08:20:16.2 |
HIP 6740 |
23.02 |
| 2026-03-29 00:00 |
01:28:45.19 |
-08:14:41.0 |
HIP 7038 |
31.43 |
| 2026-03-29 12:00 |
01:29:32.32 |
-08:09:06.2 |
HIP 7038 |
18.62 |
| 2026-03-30 00:00 |
01:30:19.51 |
-08:03:31.6 |
HIP 7038 |
6.31 |
| 2026-03-30 12:00 |
01:31:06.76 |
-07:57:57.4 |
HIP 7038 |
8.24 |
| 2026-03-31 00:00 |
01:31:54.08 |
-07:52:23.5 |
HIP 7038 |
20.79 |
| 2026-03-31 12:00 |
01:32:41.45 |
-07:46:49.8 |
HIP 7209 |
22.29 |
| 2026-04-01 00:00 |
01:33:28.89 |
-07:41:16.6 |
HIP 7350 |
26.76 |
| 2026-04-01 12:00 |
01:34:16.39 |
-07:35:43.6 |
HIP 7350 |
15.11 |
| 2026-04-02 00:00 |
01:35:03.95 |
-07:30:11.0 |
HIP 7391 |
5.83 |
| 2026-04-02 12:00 |
01:35:51.57 |
-07:24:38.7 |
HIP 7391 |
13.01 |
| 2026-04-03 00:00 |
01:36:39.25 |
-07:19:06.7 |
HIP 7518 |
8.32 |
| 2026-04-03 12:00 |
01:37:26.99 |
-07:13:35.1 |
HIP 7518 |
16.43 |
| 2026-04-04 00:00 |
01:38:14.79 |
-07:08:03.8 |
HIP 7624 |
13.08 |
| 2026-04-04 12:00 |
01:39:02.65 |
-07:02:32.9 |
HIP 7624 |
14.68 |
| 2026-04-05 00:00 |
01:39:50.57 |
-06:57:02.4 |
HIP 7789 |
20.32 |
| 2026-04-05 12:00 |
01:40:38.55 |
-06:51:32.2 |
HIP 7789 |
14.95 |
| 2026-04-06 00:00 |
01:41:26.59 |
-06:46:02.4 |
HIP 7968 |
14.17 |
| 2026-04-06 12:00 |
01:42:14.69 |
-06:40:33.0 |
HIP 7968 |
5.23 |
| 2026-04-07 00:00 |
01:43:02.85 |
-06:35:03.9 |
HIP 7968 |
14.12 |
| 2026-04-07 12:00 |
01:43:51.07 |
-06:29:35.2 |
HIP 8144 |
16.85 |
| 2026-04-08 00:00 |
01:44:39.36 |
-06:24:07.0 |
HIP 8144 |
16.08 |
| 2026-04-08 12:00 |
01:45:27.69 |
-06:18:39.1 |
HIP 8144 |
24.09 |
| 2026-04-09 00:00 |
01:46:16.09 |
-06:13:11.6 |
HIP 8230 |
29.50 |
| 2026-04-09 12:00 |
01:47:04.55 |
-06:07:44.5 |
HIP 8381 |
18.97 |
| 2026-04-10 00:00 |
01:47:53.07 |
-06:02:17.9 |
HIP 8381 |
7.06 |
| 2026-04-10 12:00 |
01:48:41.65 |
-05:56:51.6 |
HIP 8381 |
9.50 |
| 2026-04-11 00:00 |
01:49:30.28 |
-05:51:25.8 |
HIP 8381 |
21.96 |
| 2026-04-11 12:00 |
01:50:18.97 |
-05:46:00.5 |
HIP 8611 |
20.99 |
| 2026-04-12 00:00 |
01:51:07.73 |
-05:40:35.5 |
HIP 8611 |
12.45 |
| 2026-04-12 12:00 |
01:51:56.54 |
-05:35:11.0 |
HIP 8611 |
14.93 |
| 2026-04-13 00:00 |
01:52:45.40 |
-05:29:47.0 |
HIP 8852 |
21.39 |
| 2026-04-13 12:00 |
01:53:34.33 |
-05:24:23.4 |
HIP 8852 |
9.37 |
| 2026-04-14 00:00 |
01:54:23.31 |
-05:19:00.3 |
HIP 8852 |
8.54 |
| 2026-04-14 12:00 |
01:55:12.35 |
-05:13:37.7 |
HIP 8852 |
20.35 |
| 2026-04-15 00:00 |
01:56:01.45 |
-05:08:15.5 |
HIP 9127 |
25.17 |
| 2026-04-15 12:00 |
01:56:50.61 |
-05:02:53.9 |
HIP 9127 |
16.54 |
| 2026-04-16 00:00 |
01:57:39.82 |
-04:57:32.7 |
HIP 9127 |
16.43 |