메타데이터
| 항목 |
값 |
| Designation |
C/2026 A3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2027-09-28T03:52:17.132160Z |
| Orbit solution date (soln_date, UTC) |
2026-04-14T13:42:24Z |
| Obs used |
72 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
12.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2026-01-13T10:06:52.934400Z |
| Discovery magnitude (MPC) |
21.49 w |
| Discovery observatory (MPC) |
F51 · Pan-STARRS 1, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2026-03-01.0000000 |
| e |
1.00160463 |
| q (au) |
4.824761 |
| a (au) |
-3006.780675 |
| i (deg) |
157.377988 |
| Ω (om, deg) |
306.994515 |
| ω (w, deg) |
238.603300 |
| M (ma, deg) |
-0.003444 |
밝기
산란 + 전체 선형
$$
M_a = (3.755 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
3.755 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.502 |
| 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) |
| 2026-06-01 00:00 |
07:50:52.03 |
+19:25:51.0 |
HIP 38252 |
9.88 |
| 2026-06-01 12:00 |
07:50:54.77 |
+19:24:57.1 |
HIP 38252 |
10.45 |
| 2026-06-02 00:00 |
07:50:57.60 |
+19:24:03.0 |
HIP 38252 |
11.12 |
| 2026-06-02 12:00 |
07:51:00.54 |
+19:23:08.6 |
HIP 38252 |
11.89 |
| 2026-06-03 00:00 |
07:51:03.58 |
+19:22:13.9 |
HIP 38252 |
12.73 |
| 2026-06-03 12:00 |
07:51:06.72 |
+19:21:19.0 |
HIP 38394 |
11.95 |
| 2026-06-04 00:00 |
07:51:09.96 |
+19:20:23.8 |
HIP 38394 |
11.09 |
| 2026-06-04 12:00 |
07:51:13.30 |
+19:19:28.4 |
HIP 38394 |
10.26 |
| 2026-06-05 00:00 |
07:51:16.73 |
+19:18:32.7 |
HIP 38394 |
9.50 |
| 2026-06-05 12:00 |
07:51:20.26 |
+19:17:36.8 |
HIP 38394 |
8.83 |
| 2026-06-06 00:00 |
07:51:23.88 |
+19:16:40.6 |
HIP 38394 |
8.27 |
| 2026-06-06 12:00 |
07:51:27.60 |
+19:15:44.1 |
HIP 38394 |
7.86 |
| 2026-06-07 00:00 |
07:51:31.41 |
+19:14:47.4 |
HIP 38394 |
7.63 |
| 2026-06-07 12:00 |
07:51:35.32 |
+19:13:50.5 |
HIP 38394 |
7.61 |
| 2026-06-08 00:00 |
07:51:39.31 |
+19:12:53.3 |
HIP 38394 |
7.80 |
| 2026-06-08 12:00 |
07:51:43.40 |
+19:11:55.8 |
HIP 38394 |
8.21 |
| 2026-06-09 00:00 |
07:51:47.57 |
+19:10:58.1 |
HIP 38394 |
8.82 |
| 2026-06-09 12:00 |
07:51:51.84 |
+19:10:00.2 |
HIP 38394 |
9.58 |
| 2026-06-10 00:00 |
07:51:56.19 |
+19:09:02.0 |
HIP 38394 |
10.48 |
| 2026-06-10 12:00 |
07:52:00.62 |
+19:08:03.5 |
HIP 38394 |
11.49 |
| 2026-06-11 00:00 |
07:52:05.14 |
+19:07:04.9 |
HIP 38394 |
12.58 |
| 2026-06-11 12:00 |
07:52:09.75 |
+19:06:05.9 |
HIP 38394 |
13.76 |
| 2026-06-12 00:00 |
07:52:14.44 |
+19:05:06.7 |
HIP 38394 |
14.99 |
| 2026-06-12 12:00 |
07:52:19.21 |
+19:04:07.3 |
HIP 38465 |
15.78 |
| 2026-06-13 00:00 |
07:52:24.06 |
+19:03:07.6 |
HIP 38465 |
14.43 |
| 2026-06-13 12:00 |
07:52:28.99 |
+19:02:07.7 |
HIP 38465 |
13.11 |
| 2026-06-14 00:00 |
07:52:34.00 |
+19:01:07.5 |
HIP 38465 |
11.82 |
| 2026-06-14 12:00 |
07:52:39.09 |
+19:00:07.1 |
HIP 38465 |
10.61 |
| 2026-06-15 00:00 |
07:52:44.26 |
+18:59:06.5 |
HIP 38465 |
9.49 |
| 2026-06-15 12:00 |
07:52:49.50 |
+18:58:05.6 |
HIP 38465 |
8.52 |
| 2026-06-16 00:00 |
07:52:54.81 |
+18:57:04.5 |
HIP 38465 |
7.76 |
| 2026-06-16 12:00 |
07:53:00.20 |
+18:56:03.1 |
HIP 38465 |
7.30 |
| 2026-06-17 00:00 |
07:53:05.66 |
+18:55:01.5 |
HIP 38465 |
7.19 |
| 2026-06-17 12:00 |
07:53:11.19 |
+18:53:59.7 |
HIP 38465 |
7.47 |
| 2026-06-18 00:00 |
07:53:16.79 |
+18:52:57.6 |
HIP 38465 |
8.10 |
| 2026-06-18 12:00 |
07:53:22.46 |
+18:51:55.3 |
HIP 38465 |
9.02 |
| 2026-06-19 00:00 |
07:53:28.19 |
+18:50:52.8 |
HIP 38465 |
10.16 |
| 2026-06-19 12:00 |
07:53:33.99 |
+18:49:50.1 |
HIP 38465 |
11.45 |
| 2026-06-20 00:00 |
07:53:39.86 |
+18:48:47.1 |
HIP 38465 |
12.87 |
| 2026-06-20 12:00 |
07:53:45.79 |
+18:47:43.9 |
HIP 38465 |
14.37 |
| 2026-06-21 00:00 |
07:53:51.79 |
+18:46:40.4 |
HIP 38465 |
15.94 |
| 2026-06-21 12:00 |
07:53:57.84 |
+18:45:36.8 |
HIP 38465 |
17.56 |
| 2026-06-22 00:00 |
07:54:03.96 |
+18:44:32.9 |
HIP 38465 |
19.23 |