메타데이터
| 항목 |
값 |
| Designation |
434P/Tenagra |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2021-10-23T17:11:42.446400Z |
| Orbit solution date (soln_date, UTC) |
2024-02-17T03:13:57Z |
| Obs used |
188 |
| NEO |
- |
| M1 |
9.200 |
| K1 |
18.000 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2021-09-30T03:48:48.960000Z |
| Discovery magnitude (MPC) |
20.00 T |
| Discovery observatory (MPC) |
Z84 · Calar Alto-Schmidt |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2018-10-04.0000000 |
| e |
0.27168414 |
| q (au) |
3.021756 |
| a (au) |
4.148963 |
| i (deg) |
6.319545 |
| Ω (om, deg) |
288.996686 |
| ω (w, deg) |
126.932278 |
| M (ma, deg) |
229.878650 |
밝기
산란 + 전체 선형
$$
M_a = (12.973 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.973 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.688 |
| 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
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-20 00:00 |
16:09:03.92 |
-24:23:14.0 |
HIP 79031 |
17.00 |
| 2026-09-20 12:00 |
16:09:21.82 |
-24:23:32.2 |
HIP 79229 |
15.80 |
| 2026-09-21 00:00 |
16:09:39.86 |
-24:23:50.8 |
HIP 79229 |
13.03 |
| 2026-09-21 12:00 |
16:09:58.03 |
-24:24:09.8 |
HIP 79229 |
11.11 |
| 2026-09-22 00:00 |
16:10:16.34 |
-24:24:29.1 |
HIP 79229 |
10.56 |
| 2026-09-22 12:00 |
16:10:34.78 |
-24:24:48.7 |
HIP 79229 |
11.60 |
| 2026-09-23 00:00 |
16:10:53.36 |
-24:25:08.6 |
HIP 79229 |
13.92 |
| 2026-09-23 12:00 |
16:11:12.07 |
-24:25:28.9 |
HIP 79229 |
17.02 |
| 2026-09-24 00:00 |
16:11:30.91 |
-24:25:49.5 |
HIP 79229 |
20.56 |
| 2026-09-24 12:00 |
16:11:49.89 |
-24:26:10.4 |
HIP 79229 |
24.38 |
| 2026-09-25 00:00 |
16:12:08.99 |
-24:26:31.6 |
HIP 79530 |
22.00 |
| 2026-09-25 12:00 |
16:12:28.23 |
-24:26:53.1 |
HIP 79530 |
17.66 |
| 2026-09-26 00:00 |
16:12:47.59 |
-24:27:14.9 |
HIP 79530 |
13.32 |
| 2026-09-26 12:00 |
16:13:07.08 |
-24:27:37.0 |
HIP 79530 |
9.04 |
| 2026-09-27 00:00 |
16:13:26.70 |
-24:27:59.4 |
HIP 79530 |
5.04 |
| 2026-09-27 12:00 |
16:13:46.44 |
-24:28:22.1 |
HIP 79530 |
3.05 |
| 2026-09-28 00:00 |
16:14:06.31 |
-24:28:45.1 |
HIP 79530 |
5.85 |
| 2026-09-28 12:00 |
16:14:26.30 |
-24:29:08.3 |
HIP 79530 |
10.04 |
| 2026-09-29 00:00 |
16:14:46.42 |
-24:29:31.8 |
HIP 79530 |
14.49 |
| 2026-09-29 12:00 |
16:15:06.67 |
-24:29:55.6 |
HIP 79530 |
19.03 |
| 2026-09-30 00:00 |
16:15:27.03 |
-24:30:19.6 |
HIP 79740 |
19.09 |
| 2026-09-30 12:00 |
16:15:47.52 |
-24:30:43.9 |
HIP 79740 |
16.45 |
| 2026-10-01 00:00 |
16:16:08.13 |
-24:31:08.4 |
HIP 79740 |
14.84 |
| 2026-10-01 12:00 |
16:16:28.86 |
-24:31:33.2 |
HIP 79740 |
14.64 |
| 2026-10-02 00:00 |
16:16:49.71 |
-24:31:58.2 |
HIP 79740 |
15.94 |
| 2026-10-02 12:00 |
16:17:10.68 |
-24:32:23.5 |
HIP 79740 |
18.43 |
| 2026-10-03 00:00 |
16:17:31.76 |
-24:32:49.0 |
HIP 79806 |
19.76 |
| 2026-10-03 12:00 |
16:17:52.97 |
-24:33:14.7 |
HIP 79806 |
21.57 |
| 2026-10-04 00:00 |
16:18:14.29 |
-24:33:40.6 |
HIP 79806 |
24.26 |
| 2026-10-04 12:00 |
16:18:35.73 |
-24:34:06.8 |
HIP 79806 |
27.57 |
| 2026-10-05 00:00 |
16:18:57.29 |
-24:34:33.2 |
HIP 79806 |
31.32 |
| 2026-10-05 12:00 |
16:19:18.96 |
-24:34:59.8 |
HIP 80079 |
30.70 |
| 2026-10-06 00:00 |
16:19:40.75 |
-24:35:26.6 |
HIP 80079 |
28.47 |
| 2026-10-06 12:00 |
16:20:02.65 |
-24:35:53.6 |
HIP 80079 |
26.98 |
| 2026-10-07 00:00 |
16:20:24.66 |
-24:36:20.7 |
HIP 80079 |
26.37 |
| 2026-10-07 12:00 |
16:20:46.79 |
-24:36:48.1 |
HIP 80196 |
25.96 |
| 2026-10-08 00:00 |
16:21:09.03 |
-24:37:15.7 |
HIP 80196 |
22.34 |
| 2026-10-08 12:00 |
16:21:31.38 |
-24:37:43.4 |
HIP 80196 |
19.38 |
| 2026-10-09 00:00 |
16:21:53.84 |
-24:38:11.3 |
HIP 80268 |
17.36 |
| 2026-10-09 12:00 |
16:22:16.40 |
-24:38:39.4 |
HIP 80268 |
12.30 |
| 2026-10-10 00:00 |
16:22:39.08 |
-24:39:07.6 |
HIP 80268 |
7.35 |
| 2026-10-10 12:00 |
16:23:01.86 |
-24:39:36.0 |
HIP 80268 |
3.19 |
| 2026-10-11 00:00 |
16:23:24.75 |
-24:40:04.6 |
HIP 80268 |
4.53 |