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) |
| 2026-07-29 00:00 |
15:53:10.02 |
-24:38:01.5 |
HIP 77858 |
11.67 |
| 2026-07-29 12:00 |
15:53:09.03 |
-24:37:22.1 |
HIP 77858 |
11.54 |
| 2026-07-30 00:00 |
15:53:08.25 |
-24:36:43.3 |
HIP 77858 |
11.41 |
| 2026-07-30 12:00 |
15:53:07.68 |
-24:36:05.2 |
HIP 77858 |
11.29 |
| 2026-07-31 00:00 |
15:53:07.31 |
-24:35:27.6 |
HIP 77858 |
11.15 |
| 2026-07-31 12:00 |
15:53:07.14 |
-24:34:50.7 |
HIP 77858 |
11.02 |
| 2026-08-01 00:00 |
15:53:07.18 |
-24:34:14.3 |
HIP 77858 |
10.87 |
| 2026-08-01 12:00 |
15:53:07.43 |
-24:33:38.6 |
HIP 77858 |
10.70 |
| 2026-08-02 00:00 |
15:53:07.87 |
-24:33:03.5 |
HIP 77858 |
10.53 |
| 2026-08-02 12:00 |
15:53:08.53 |
-24:32:29.0 |
HIP 77858 |
10.34 |
| 2026-08-03 00:00 |
15:53:09.38 |
-24:31:55.2 |
HIP 77858 |
10.13 |
| 2026-08-03 12:00 |
15:53:10.45 |
-24:31:21.9 |
HIP 77858 |
9.91 |
| 2026-08-04 00:00 |
15:53:11.71 |
-24:30:49.3 |
HIP 77858 |
9.67 |
| 2026-08-04 12:00 |
15:53:13.18 |
-24:30:17.3 |
HIP 77858 |
9.42 |
| 2026-08-05 00:00 |
15:53:14.85 |
-24:29:45.9 |
HIP 77858 |
9.16 |
| 2026-08-05 12:00 |
15:53:16.73 |
-24:29:15.2 |
HIP 77858 |
8.89 |
| 2026-08-06 00:00 |
15:53:18.80 |
-24:28:45.1 |
HIP 77858 |
8.62 |
| 2026-08-06 12:00 |
15:53:21.08 |
-24:28:15.6 |
HIP 77858 |
8.35 |
| 2026-08-07 00:00 |
15:53:23.56 |
-24:27:46.7 |
HIP 77858 |
8.09 |
| 2026-08-07 12:00 |
15:53:26.25 |
-24:27:18.5 |
HIP 77858 |
7.84 |
| 2026-08-08 00:00 |
15:53:29.13 |
-24:26:50.9 |
HIP 77858 |
7.63 |
| 2026-08-08 12:00 |
15:53:32.22 |
-24:26:23.9 |
HIP 77858 |
7.46 |
| 2026-08-09 00:00 |
15:53:35.51 |
-24:25:57.6 |
HIP 77858 |
7.34 |
| 2026-08-09 12:00 |
15:53:39.00 |
-24:25:31.9 |
HIP 77858 |
7.29 |
| 2026-08-10 00:00 |
15:53:42.69 |
-24:25:06.8 |
HIP 77858 |
7.33 |
| 2026-08-10 12:00 |
15:53:46.57 |
-24:24:42.4 |
HIP 77858 |
7.47 |
| 2026-08-11 00:00 |
15:53:50.66 |
-24:24:18.6 |
HIP 77858 |
7.71 |
| 2026-08-11 12:00 |
15:53:54.95 |
-24:23:55.4 |
HIP 77858 |
8.07 |
| 2026-08-12 00:00 |
15:53:59.44 |
-24:23:32.9 |
HIP 77858 |
8.53 |
| 2026-08-12 12:00 |
15:54:04.13 |
-24:23:10.9 |
HIP 77858 |
9.10 |
| 2026-08-13 00:00 |
15:54:09.01 |
-24:22:49.7 |
HIP 77858 |
9.78 |
| 2026-08-13 12:00 |
15:54:14.09 |
-24:22:29.0 |
HIP 77858 |
10.55 |
| 2026-08-14 00:00 |
15:54:19.37 |
-24:22:09.0 |
HIP 77858 |
11.41 |
| 2026-08-14 12:00 |
15:54:24.84 |
-24:21:49.6 |
HIP 77858 |
12.36 |
| 2026-08-15 00:00 |
15:54:30.51 |
-24:21:30.8 |
HIP 77858 |
13.38 |
| 2026-08-15 12:00 |
15:54:36.38 |
-24:21:12.7 |
HIP 77858 |
14.47 |
| 2026-08-16 00:00 |
15:54:42.44 |
-24:20:55.1 |
HIP 77858 |
15.63 |
| 2026-08-16 12:00 |
15:54:48.69 |
-24:20:38.2 |
HIP 77858 |
16.86 |
| 2026-08-17 00:00 |
15:54:55.14 |
-24:20:21.9 |
HIP 77858 |
18.14 |
| 2026-08-17 12:00 |
15:55:01.77 |
-24:20:06.2 |
HIP 77858 |
19.49 |
| 2026-08-18 00:00 |
15:55:08.60 |
-24:19:51.2 |
HIP 78083 |
20.27 |
| 2026-08-18 12:00 |
15:55:15.62 |
-24:19:36.7 |
HIP 78083 |
18.68 |
| 2026-08-19 00:00 |
15:55:22.83 |
-24:19:22.9 |
HIP 78083 |
17.04 |