C/2019 E3 (ATLAS)
메타데이터
| 항목 |
값 |
| Designation |
C/2019 E3 (ATLAS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2023-11-14T09:01:11.254080Z |
| Orbit solution date (soln_date, UTC) |
2026-01-13T17:40:17Z |
| Obs used |
963 |
| NEO |
- |
| M1 |
6.100 |
| K1 |
6.500 |
| PC |
0.030 |
| Discovery observation (MPC, UTC) |
2019-03-05T10:14:33.792000Z |
| Discovery magnitude (MPC) |
18.45 o |
| Discovery observatory (MPC) |
T08 · ATLAS-MLO, Mauna Loa |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-08-10.0000000 |
| e |
1.00100337 |
| q (au) |
10.313395 |
| a (au) |
-10278.759889 |
| i (deg) |
84.297551 |
| Ω (om, deg) |
347.253937 |
| ω (w, deg) |
280.664970 |
| M (ma, deg) |
-0.000436 |
밝기
산란 + 전체 선형
$$
M_a = (2.457 + 3.614\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
2.457 |
| n |
3.614 |
| gf |
0.973 |
| gb |
-0.702 |
| k |
1.000 |
| δ90 |
9.980 |
| 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) |
| 2026-02-03 00:00 |
00:08:53.74 |
-47:42:53.6 |
HIP 541 |
24.53 |
| 2026-02-03 12:00 |
00:09:00.62 |
-47:40:05.3 |
HIP 541 |
24.93 |
| 2026-02-04 00:00 |
00:09:07.57 |
-47:37:17.6 |
HIP 541 |
25.70 |
| 2026-02-04 12:00 |
00:09:14.59 |
-47:34:30.3 |
HIP 541 |
26.81 |
| 2026-02-05 00:00 |
00:09:21.68 |
-47:31:43.5 |
HIP 541 |
28.21 |
| 2026-02-05 12:00 |
00:09:28.84 |
-47:28:57.2 |
HIP 709 |
26.23 |
| 2026-02-06 00:00 |
00:09:36.08 |
-47:26:11.4 |
HIP 709 |
23.96 |
| 2026-02-06 12:00 |
00:09:43.38 |
-47:23:26.1 |
HIP 709 |
21.88 |
| 2026-02-07 00:00 |
00:09:50.75 |
-47:20:41.3 |
HIP 709 |
20.07 |
| 2026-02-07 12:00 |
00:09:58.18 |
-47:17:57.1 |
HIP 709 |
18.58 |
| 2026-02-08 00:00 |
00:10:05.69 |
-47:15:13.3 |
HIP 709 |
17.51 |
| 2026-02-08 12:00 |
00:10:13.26 |
-47:12:30.1 |
HIP 709 |
16.93 |
| 2026-02-09 00:00 |
00:10:20.89 |
-47:09:47.5 |
HIP 709 |
16.89 |
| 2026-02-09 12:00 |
00:10:28.59 |
-47:07:05.3 |
HIP 709 |
17.40 |
| 2026-02-10 00:00 |
00:10:36.35 |
-47:04:23.7 |
HIP 709 |
18.40 |
| 2026-02-10 12:00 |
00:10:44.18 |
-47:01:42.7 |
HIP 709 |
19.82 |
| 2026-02-11 00:00 |
00:10:52.06 |
-46:59:02.2 |
HIP 709 |
21.57 |
| 2026-02-11 12:00 |
00:11:00.01 |
-46:56:22.3 |
HIP 709 |
23.59 |
| 2026-02-12 00:00 |
00:11:08.02 |
-46:53:42.9 |
HIP 709 |
25.80 |
| 2026-02-12 12:00 |
00:11:16.08 |
-46:51:04.1 |
HIP 709 |
28.16 |
| 2026-02-13 00:00 |
00:11:24.21 |
-46:48:25.9 |
HIP 709 |
30.64 |
| 2026-02-13 12:00 |
00:11:32.39 |
-46:45:48.2 |
HIP 776 |
30.83 |
| 2026-02-14 00:00 |
00:11:40.63 |
-46:43:11.2 |
HIP 776 |
29.91 |
| 2026-02-14 12:00 |
00:11:48.92 |
-46:40:34.7 |
HIP 776 |
29.29 |
| 2026-02-15 00:00 |
00:11:57.28 |
-46:37:58.8 |
HIP 1171 |
27.68 |
| 2026-02-15 12:00 |
00:12:05.68 |
-46:35:23.5 |
HIP 1171 |
26.28 |
| 2026-02-16 00:00 |
00:12:14.14 |
-46:32:48.9 |
HIP 1171 |
25.15 |
| 2026-02-16 12:00 |
00:12:22.65 |
-46:30:14.8 |
HIP 1171 |
24.30 |
| 2026-02-17 00:00 |
00:12:31.21 |
-46:27:41.3 |
HIP 1171 |
23.79 |
| 2026-02-17 12:00 |
00:12:39.82 |
-46:25:08.5 |
HIP 1171 |
23.61 |
| 2026-02-18 00:00 |
00:12:48.49 |
-46:22:36.3 |
HIP 1171 |
23.79 |
| 2026-02-18 12:00 |
00:12:57.20 |
-46:20:04.7 |
HIP 1171 |
24.31 |
| 2026-02-19 00:00 |
00:13:05.96 |
-46:17:33.8 |
HIP 1181 |
23.06 |
| 2026-02-19 12:00 |
00:13:14.77 |
-46:15:03.4 |
HIP 1181 |
20.26 |
| 2026-02-20 00:00 |
00:13:23.62 |
-46:12:33.8 |
HIP 1181 |
17.51 |
| 2026-02-20 12:00 |
00:13:32.52 |
-46:10:04.7 |
HIP 1181 |
14.82 |
| 2026-02-21 00:00 |
00:13:41.47 |
-46:07:36.4 |
HIP 1181 |
12.24 |
| 2026-02-21 12:00 |
00:13:50.46 |
-46:05:08.7 |
HIP 1181 |
9.84 |
| 2026-02-22 00:00 |
00:13:59.49 |
-46:02:41.6 |
HIP 1181 |
7.80 |
| 2026-02-22 12:00 |
00:14:08.57 |
-46:00:15.2 |
HIP 1181 |
6.44 |
| 2026-02-23 00:00 |
00:14:17.68 |
-45:57:49.5 |
HIP 1181 |
6.23 |
| 2026-02-23 12:00 |
00:14:26.84 |
-45:55:24.4 |
HIP 1181 |
7.26 |
| 2026-02-24 00:00 |
00:14:36.03 |
-45:53:00.0 |
HIP 1181 |
9.12 |