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) |
| 2026-09-20 00:00 |
08:12:42.24 |
+14:48:21.0 |
HIP 40194 |
13.12 |
| 2026-09-20 12:00 |
08:12:42.73 |
+14:46:55.5 |
HIP 40194 |
11.72 |
| 2026-09-21 00:00 |
08:12:43.08 |
+14:45:30.1 |
HIP 40194 |
10.32 |
| 2026-09-21 12:00 |
08:12:43.30 |
+14:44:04.7 |
HIP 40194 |
8.92 |
| 2026-09-22 00:00 |
08:12:43.38 |
+14:42:39.4 |
HIP 40194 |
7.53 |
| 2026-09-22 12:00 |
08:12:43.32 |
+14:41:14.2 |
HIP 40194 |
6.15 |
| 2026-09-23 00:00 |
08:12:43.11 |
+14:39:49.0 |
HIP 40194 |
4.77 |
| 2026-09-23 12:00 |
08:12:42.77 |
+14:38:23.9 |
HIP 40194 |
3.42 |
| 2026-09-24 00:00 |
08:12:42.27 |
+14:36:58.8 |
HIP 40194 |
2.14 |
| 2026-09-24 12:00 |
08:12:41.64 |
+14:35:33.8 |
HIP 40194 |
1.19 |
| 2026-09-25 00:00 |
08:12:40.85 |
+14:34:08.9 |
HIP 40194 |
1.49 |
| 2026-09-25 12:00 |
08:12:39.92 |
+14:32:44.1 |
HIP 40194 |
2.66 |
| 2026-09-26 00:00 |
08:12:38.84 |
+14:31:19.3 |
HIP 40194 |
4.00 |
| 2026-09-26 12:00 |
08:12:37.61 |
+14:29:54.6 |
HIP 40194 |
5.38 |
| 2026-09-27 00:00 |
08:12:36.22 |
+14:28:30.0 |
HIP 40194 |
6.79 |
| 2026-09-27 12:00 |
08:12:34.68 |
+14:27:05.5 |
HIP 40194 |
8.22 |
| 2026-09-28 00:00 |
08:12:32.99 |
+14:25:41.0 |
HIP 40194 |
9.65 |
| 2026-09-28 12:00 |
08:12:31.14 |
+14:24:16.7 |
HIP 40194 |
11.10 |
| 2026-09-29 00:00 |
08:12:29.13 |
+14:22:52.4 |
HIP 40194 |
12.56 |
| 2026-09-29 12:00 |
08:12:26.96 |
+14:21:28.2 |
HIP 40194 |
14.03 |
| 2026-09-30 00:00 |
08:12:24.63 |
+14:20:04.2 |
HIP 40194 |
15.51 |
| 2026-09-30 12:00 |
08:12:22.13 |
+14:18:40.2 |
HIP 40194 |
17.00 |
| 2026-10-01 00:00 |
08:12:19.47 |
+14:17:16.3 |
HIP 40177 |
17.04 |
| 2026-10-01 12:00 |
08:12:16.65 |
+14:15:52.5 |
HIP 40177 |
15.69 |
| 2026-10-02 00:00 |
08:12:13.66 |
+14:14:28.9 |
HIP 40177 |
14.38 |
| 2026-10-02 12:00 |
08:12:10.50 |
+14:13:05.3 |
HIP 40177 |
13.15 |
| 2026-10-03 00:00 |
08:12:07.17 |
+14:11:41.9 |
HIP 40177 |
12.01 |
| 2026-10-03 12:00 |
08:12:03.67 |
+14:10:18.5 |
HIP 40177 |
11.02 |
| 2026-10-04 00:00 |
08:11:59.99 |
+14:08:55.3 |
HIP 40177 |
10.21 |
| 2026-10-04 12:00 |
08:11:56.14 |
+14:07:32.2 |
HIP 40177 |
9.65 |
| 2026-10-05 00:00 |
08:11:52.11 |
+14:06:09.3 |
HIP 40177 |
9.39 |
| 2026-10-05 12:00 |
08:11:47.90 |
+14:04:46.4 |
HIP 40177 |
9.47 |
| 2026-10-06 00:00 |
08:11:43.51 |
+14:03:23.7 |
HIP 40177 |
9.90 |
| 2026-10-06 12:00 |
08:11:38.94 |
+14:02:01.2 |
HIP 40177 |
10.64 |
| 2026-10-07 00:00 |
08:11:34.18 |
+14:00:38.7 |
HIP 40177 |
11.65 |
| 2026-10-07 12:00 |
08:11:29.24 |
+13:59:16.5 |
HIP 40177 |
12.88 |
| 2026-10-08 00:00 |
08:11:24.11 |
+13:57:54.3 |
HIP 40177 |
14.28 |
| 2026-10-08 12:00 |
08:11:18.79 |
+13:56:32.4 |
HIP 40177 |
15.82 |
| 2026-10-09 00:00 |
08:11:13.29 |
+13:55:10.5 |
HIP 40177 |
17.47 |
| 2026-10-09 12:00 |
08:11:07.59 |
+13:53:48.9 |
HIP 40177 |
19.21 |
| 2026-10-10 00:00 |
08:11:01.69 |
+13:52:27.3 |
HIP 40177 |
21.03 |
| 2026-10-10 12:00 |
08:10:55.61 |
+13:51:06.0 |
HIP 40177 |
22.91 |
| 2026-10-11 00:00 |
08:10:49.32 |
+13:49:44.8 |
HIP 40177 |
24.86 |