메타데이터
| 항목 |
값 |
| Designation |
P/2025 W3 (Kresken) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2025-03-17T01:23:50.372160Z |
| Orbit solution date (soln_date, UTC) |
2026-03-07T14:43:27Z |
| Obs used |
41 |
| NEO |
- |
| M1 |
18.700 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2025-11-29T03:49:57.043200Z |
| Discovery magnitude (MPC) |
22.10 G |
| Discovery observatory (MPC) |
Z84 · Calar Alto-Schmidt |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2025-12-18.0000000 |
| e |
0.18056761 |
| q (au) |
2.087186 |
| a (au) |
2.547112 |
| i (deg) |
9.744861 |
| Ω (om, deg) |
60.053173 |
| ω (w, deg) |
311.399120 |
| M (ma, deg) |
66.903591 |
밝기
산란 + 전체 선형
$$
M_a = (20.000 + 3.593\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
20.000 |
| n |
3.593 |
| gf |
1.000 |
| gb |
-0.804 |
| k |
0.821 |
| 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) |
| 2026-07-29 00:00 |
09:48:03.23 |
+21:00:28.6 |
HIP 48197 |
24.60 |
| 2026-07-29 12:00 |
09:48:50.37 |
+20:56:22.2 |
HIP 48197 |
13.25 |
| 2026-07-30 00:00 |
09:49:37.50 |
+20:52:15.3 |
HIP 48197 |
4.71 |
| 2026-07-30 12:00 |
09:50:24.59 |
+20:48:08.0 |
HIP 48303 |
6.34 |
| 2026-07-31 00:00 |
09:51:11.67 |
+20:44:00.3 |
HIP 48303 |
6.12 |
| 2026-07-31 12:00 |
09:51:58.72 |
+20:39:52.2 |
HIP 48303 |
17.64 |
| 2026-08-01 00:00 |
09:52:45.74 |
+20:35:43.7 |
HIP 48386 |
29.02 |
| 2026-08-01 12:00 |
09:53:32.74 |
+20:31:34.8 |
HIP 48386 |
32.52 |
| 2026-08-02 00:00 |
09:54:19.71 |
+20:27:25.6 |
HIP 48484 |
34.45 |
| 2026-08-02 12:00 |
09:55:06.66 |
+20:23:15.9 |
HIP 48778 |
34.66 |
| 2026-08-03 00:00 |
09:55:53.58 |
+20:19:05.9 |
HIP 48837 |
27.14 |
| 2026-08-03 12:00 |
09:56:40.48 |
+20:14:55.5 |
HIP 48837 |
15.38 |
| 2026-08-04 00:00 |
09:57:27.35 |
+20:10:44.7 |
HIP 48837 |
3.69 |
| 2026-08-04 12:00 |
09:58:14.20 |
+20:06:33.6 |
HIP 48837 |
8.21 |
| 2026-08-05 00:00 |
09:59:01.02 |
+20:02:22.0 |
HIP 48837 |
19.95 |
| 2026-08-05 12:00 |
09:59:47.81 |
+19:58:10.2 |
HIP 48837 |
31.71 |
| 2026-08-06 00:00 |
10:00:34.58 |
+19:53:57.9 |
HIP 49115 |
34.99 |
| 2026-08-06 12:00 |
10:01:21.32 |
+19:49:45.4 |
HIP 49115 |
28.71 |
| 2026-08-07 00:00 |
10:02:08.04 |
+19:45:32.4 |
HIP 49115 |
26.48 |
| 2026-08-07 12:00 |
10:02:54.73 |
+19:41:19.2 |
HIP 49115 |
29.26 |
| 2026-08-08 00:00 |
10:03:41.40 |
+19:37:05.6 |
HIP 49410 |
23.82 |
| 2026-08-08 12:00 |
10:04:28.03 |
+19:32:51.6 |
HIP 49410 |
12.16 |
| 2026-08-09 00:00 |
10:05:14.64 |
+19:28:37.4 |
HIP 49410 |
2.38 |
| 2026-08-09 12:00 |
10:06:01.23 |
+19:24:22.8 |
HIP 49410 |
11.86 |
| 2026-08-10 00:00 |
10:06:47.78 |
+19:20:07.9 |
HIP 49410 |
23.51 |
| 2026-08-10 12:00 |
10:07:34.31 |
+19:15:52.7 |
HIP 49656 |
31.45 |
| 2026-08-11 00:00 |
10:08:20.81 |
+19:11:37.2 |
HIP 49656 |
25.76 |
| 2026-08-11 12:00 |
10:09:07.28 |
+19:07:21.4 |
HIP 49656 |
24.80 |
| 2026-08-12 00:00 |
10:09:53.72 |
+19:03:05.3 |
HIP 49656 |
29.05 |
| 2026-08-12 12:00 |
10:10:40.14 |
+18:58:48.9 |
HIP 49955 |
18.62 |
| 2026-08-13 00:00 |
10:11:26.52 |
+18:54:32.2 |
HIP 49955 |
7.70 |
| 2026-08-13 12:00 |
10:12:12.87 |
+18:50:15.3 |
HIP 49955 |
6.99 |
| 2026-08-14 00:00 |
10:12:59.20 |
+18:45:58.1 |
HIP 49955 |
17.76 |
| 2026-08-14 12:00 |
10:13:45.49 |
+18:41:40.7 |
HIP 49955 |
29.31 |
| 2026-08-15 00:00 |
10:14:31.75 |
+18:37:22.9 |
HIP 50207 |
29.24 |
| 2026-08-15 12:00 |
10:15:17.98 |
+18:33:05.0 |
HIP 50375 |
30.19 |
| 2026-08-16 00:00 |
10:16:04.18 |
+18:28:46.8 |
HIP 50375 |
24.65 |
| 2026-08-16 12:00 |
10:16:50.35 |
+18:24:28.3 |
HIP 50375 |
24.09 |
| 2026-08-17 00:00 |
10:17:36.49 |
+18:20:09.7 |
HIP 50375 |
28.81 |
| 2026-08-17 12:00 |
10:18:22.59 |
+18:15:50.8 |
HIP 50508 |
34.50 |
| 2026-08-18 00:00 |
10:19:08.66 |
+18:11:31.6 |
HIP 50508 |
29.29 |
| 2026-08-18 12:00 |
10:19:54.70 |
+18:07:12.3 |
HIP 50508 |
28.33 |
| 2026-08-19 00:00 |
10:20:40.70 |
+18:02:52.8 |
HIP 50508 |
32.00 |