C/2025 B1 (PANSTARRS)
메타데이터
| 항목 |
값 |
| Designation |
C/2025 B1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2025-06-26T20:05:36.317760Z |
| Orbit solution date (soln_date, UTC) |
2025-02-20T14:12:22Z |
| Obs used |
48 |
| NEO |
- |
| M1 |
11.800 |
| K1 |
10.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2025-01-20T05:46:10.819200Z |
| Discovery magnitude (MPC) |
20.72 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2025-01-21.0000000 |
| e |
1.00295920 |
| q (au) |
3.528969 |
| a (au) |
-1192.541948 |
| i (deg) |
39.643061 |
| Ω (om, deg) |
102.846424 |
| ω (w, deg) |
23.567475 |
| M (ma, deg) |
-0.003754 |
밝기
산란 + 전체 선형
$$
M_a = (7.947 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.947 |
| n |
6.000 |
| gf |
0.995 |
| gb |
-0.998 |
| 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
찾아보기
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
13:02:20.68 |
+41:39:13.7 |
HIP 63785 |
24.02 |
| 2026-02-03 12:00 |
13:02:26.79 |
+41:44:02.5 |
HIP 63785 |
24.60 |
| 2026-02-04 00:00 |
13:02:32.58 |
+41:48:50.9 |
HIP 63473 |
25.06 |
| 2026-02-04 12:00 |
13:02:38.07 |
+41:53:38.9 |
HIP 63697 |
24.95 |
| 2026-02-05 00:00 |
13:02:43.24 |
+41:58:26.5 |
HIP 63697 |
20.08 |
| 2026-02-05 12:00 |
13:02:48.09 |
+42:03:13.5 |
HIP 63697 |
15.24 |
| 2026-02-06 00:00 |
13:02:52.64 |
+42:08:00.0 |
HIP 63697 |
10.46 |
| 2026-02-06 12:00 |
13:02:56.87 |
+42:12:45.9 |
HIP 63697 |
5.84 |
| 2026-02-07 00:00 |
13:03:00.79 |
+42:17:31.2 |
HIP 63697 |
2.40 |
| 2026-02-07 12:00 |
13:03:04.40 |
+42:22:15.8 |
HIP 63697 |
4.87 |
| 2026-02-08 00:00 |
13:03:07.69 |
+42:26:59.7 |
HIP 63697 |
9.36 |
| 2026-02-08 12:00 |
13:03:10.67 |
+42:31:42.9 |
HIP 63697 |
14.02 |
| 2026-02-09 00:00 |
13:03:13.34 |
+42:36:25.3 |
HIP 63697 |
18.72 |
| 2026-02-09 12:00 |
13:03:15.70 |
+42:41:06.8 |
HIP 63748 |
20.54 |
| 2026-02-10 00:00 |
13:03:17.74 |
+42:45:47.5 |
HIP 63748 |
16.05 |
| 2026-02-10 12:00 |
13:03:19.48 |
+42:50:27.3 |
HIP 63748 |
11.77 |
| 2026-02-11 00:00 |
13:03:20.90 |
+42:55:06.2 |
HIP 63748 |
8.00 |
| 2026-02-11 12:00 |
13:03:22.01 |
+42:59:44.0 |
HIP 63748 |
5.79 |
| 2026-02-12 00:00 |
13:03:22.81 |
+43:04:20.8 |
HIP 63748 |
6.81 |
| 2026-02-12 12:00 |
13:03:23.30 |
+43:08:56.6 |
HIP 63748 |
10.11 |
| 2026-02-13 00:00 |
13:03:23.48 |
+43:13:31.2 |
HIP 63748 |
14.16 |
| 2026-02-13 12:00 |
13:03:23.35 |
+43:18:04.6 |
HIP 63604 |
17.23 |
| 2026-02-14 00:00 |
13:03:22.92 |
+43:22:36.9 |
HIP 63604 |
15.11 |
| 2026-02-14 12:00 |
13:03:22.18 |
+43:27:07.8 |
HIP 63604 |
14.11 |
| 2026-02-15 00:00 |
13:03:21.14 |
+43:31:37.5 |
HIP 63604 |
14.46 |
| 2026-02-15 12:00 |
13:03:19.79 |
+43:36:05.9 |
HIP 63604 |
16.05 |
| 2026-02-16 00:00 |
13:03:18.14 |
+43:40:32.9 |
HIP 63590 |
15.89 |
| 2026-02-16 12:00 |
13:03:16.19 |
+43:44:58.4 |
HIP 63590 |
15.30 |
| 2026-02-17 00:00 |
13:03:13.93 |
+43:49:22.5 |
HIP 63590 |
15.91 |
| 2026-02-17 12:00 |
13:03:11.38 |
+43:53:45.0 |
HIP 63759 |
16.92 |
| 2026-02-18 00:00 |
13:03:08.53 |
+43:58:06.0 |
HIP 63759 |
14.08 |
| 2026-02-18 12:00 |
13:03:05.39 |
+44:02:25.4 |
HIP 63759 |
12.24 |
| 2026-02-19 00:00 |
13:03:01.95 |
+44:06:43.2 |
HIP 63759 |
11.86 |
| 2026-02-19 12:00 |
13:02:58.23 |
+44:10:59.2 |
HIP 63759 |
13.05 |
| 2026-02-20 00:00 |
13:02:54.21 |
+44:15:13.6 |
HIP 63759 |
15.43 |
| 2026-02-20 12:00 |
13:02:49.90 |
+44:19:26.1 |
HIP 63759 |
18.54 |
| 2026-02-21 00:00 |
13:02:45.31 |
+44:23:36.9 |
HIP 63528 |
18.25 |
| 2026-02-21 12:00 |
13:02:40.44 |
+44:27:45.8 |
HIP 63528 |
18.57 |
| 2026-02-22 00:00 |
13:02:35.28 |
+44:31:52.8 |
HIP 63528 |
19.77 |
| 2026-02-22 12:00 |
13:02:29.84 |
+44:35:57.8 |
HIP 63528 |
21.67 |
| 2026-02-23 00:00 |
13:02:24.13 |
+44:40:00.9 |
HIP 63528 |
24.10 |
| 2026-02-23 12:00 |
13:02:18.15 |
+44:44:02.0 |
HIP 63528 |
26.92 |
| 2026-02-24 00:00 |
13:02:11.89 |
+44:48:01.0 |
HIP 63433 |
29.60 |