메타데이터
| 항목 |
값 |
| Designation |
C/2024 E2 (Bok) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2023-10-23T18:35:47.109120Z |
| Orbit solution date (soln_date, UTC) |
2024-05-14T12:42:25Z |
| Obs used |
81 |
| NEO |
- |
| M1 |
8.600 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2024-03-10T06:03:37.900800Z |
| Discovery magnitude (MPC) |
22.75 G |
| Discovery observatory (MPC) |
V00 · Kitt Peak-Bok |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2024-03-17.0000000 |
| e |
0.85195999 |
| q (au) |
7.692115 |
| a (au) |
51.959703 |
| i (deg) |
155.652171 |
| Ω (om, deg) |
135.652797 |
| ω (w, deg) |
358.035418 |
| M (ma, deg) |
0.382161 |
밝기
산란 + 전체 선형
$$
M_a = (12.032 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.032 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.501 |
| k |
1.000 |
| 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 |
05:57:03.30 |
+41:06:34.7 |
HIP 28054 |
17.94 |
| 2026-07-29 12:00 |
05:57:09.36 |
+41:07:26.1 |
HIP 28054 |
18.17 |
| 2026-07-30 00:00 |
05:57:15.35 |
+41:08:17.8 |
HIP 28054 |
18.51 |
| 2026-07-30 12:00 |
05:57:21.27 |
+41:09:10.0 |
HIP 28054 |
18.92 |
| 2026-07-31 00:00 |
05:57:27.12 |
+41:10:02.5 |
HIP 28054 |
19.42 |
| 2026-07-31 12:00 |
05:57:32.90 |
+41:10:55.3 |
HIP 28054 |
19.98 |
| 2026-08-01 00:00 |
05:57:38.61 |
+41:11:48.6 |
HIP 28054 |
20.62 |
| 2026-08-01 12:00 |
05:57:44.24 |
+41:12:42.1 |
HIP 28054 |
21.30 |
| 2026-08-02 00:00 |
05:57:49.80 |
+41:13:36.1 |
HIP 28054 |
22.04 |
| 2026-08-02 12:00 |
05:57:55.29 |
+41:14:30.4 |
HIP 28054 |
22.82 |
| 2026-08-03 00:00 |
05:58:00.70 |
+41:15:25.0 |
HIP 28054 |
23.65 |
| 2026-08-03 12:00 |
05:58:06.03 |
+41:16:20.0 |
HIP 28054 |
24.50 |
| 2026-08-04 00:00 |
05:58:11.29 |
+41:17:15.4 |
HIP 28054 |
25.38 |
| 2026-08-04 12:00 |
05:58:16.47 |
+41:18:11.1 |
HIP 28054 |
26.29 |
| 2026-08-05 00:00 |
05:58:21.57 |
+41:19:07.2 |
HIP 28405 |
26.52 |
| 2026-08-05 12:00 |
05:58:26.59 |
+41:20:03.6 |
HIP 28405 |
25.19 |
| 2026-08-06 00:00 |
05:58:31.53 |
+41:21:00.4 |
HIP 28405 |
23.86 |
| 2026-08-06 12:00 |
05:58:36.39 |
+41:21:57.6 |
HIP 28405 |
22.55 |
| 2026-08-07 00:00 |
05:58:41.16 |
+41:22:55.1 |
HIP 28405 |
21.23 |
| 2026-08-07 12:00 |
05:58:45.85 |
+41:23:53.0 |
HIP 28405 |
19.93 |
| 2026-08-08 00:00 |
05:58:50.46 |
+41:24:51.2 |
HIP 28405 |
18.63 |
| 2026-08-08 12:00 |
05:58:54.98 |
+41:25:49.8 |
HIP 28405 |
17.34 |
| 2026-08-09 00:00 |
05:58:59.42 |
+41:26:48.7 |
HIP 28405 |
16.05 |
| 2026-08-09 12:00 |
05:59:03.77 |
+41:27:48.0 |
HIP 28405 |
14.77 |
| 2026-08-10 00:00 |
05:59:08.03 |
+41:28:47.6 |
HIP 28405 |
13.50 |
| 2026-08-10 12:00 |
05:59:12.20 |
+41:29:47.6 |
HIP 28405 |
12.24 |
| 2026-08-11 00:00 |
05:59:16.29 |
+41:30:47.9 |
HIP 28405 |
10.99 |
| 2026-08-11 12:00 |
05:59:20.28 |
+41:31:48.6 |
HIP 28405 |
9.75 |
| 2026-08-12 00:00 |
05:59:24.17 |
+41:32:49.7 |
HIP 28405 |
8.53 |
| 2026-08-12 12:00 |
05:59:27.98 |
+41:33:51.0 |
HIP 28405 |
7.32 |
| 2026-08-13 00:00 |
05:59:31.69 |
+41:34:52.8 |
HIP 28405 |
6.14 |
| 2026-08-13 12:00 |
05:59:35.31 |
+41:35:54.8 |
HIP 28405 |
5.01 |
| 2026-08-14 00:00 |
05:59:38.83 |
+41:36:57.3 |
HIP 28405 |
3.94 |
| 2026-08-14 12:00 |
05:59:42.25 |
+41:38:00.0 |
HIP 28405 |
3.03 |
| 2026-08-15 00:00 |
05:59:45.58 |
+41:39:03.1 |
HIP 28405 |
2.43 |
| 2026-08-15 12:00 |
05:59:48.81 |
+41:40:06.6 |
HIP 28405 |
2.39 |
| 2026-08-16 00:00 |
05:59:51.94 |
+41:41:10.4 |
HIP 28405 |
2.93 |
| 2026-08-16 12:00 |
05:59:54.96 |
+41:42:14.5 |
HIP 28405 |
3.80 |
| 2026-08-17 00:00 |
05:59:57.89 |
+41:43:19.0 |
HIP 28405 |
4.82 |
| 2026-08-17 12:00 |
06:00:00.72 |
+41:44:23.8 |
HIP 28405 |
5.92 |
| 2026-08-18 00:00 |
06:00:03.44 |
+41:45:28.9 |
HIP 28405 |
7.06 |
| 2026-08-18 12:00 |
06:00:06.06 |
+41:46:34.3 |
HIP 28405 |
8.21 |
| 2026-08-19 00:00 |
06:00:08.57 |
+41:47:40.1 |
HIP 28405 |
9.38 |