메타데이터
| 항목 |
값 |
| Designation |
C/2026 O1 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2027-07-18T08:44:25.048320Z |
| Orbit solution date (soln_date, UTC) |
2026-09-08T09:12:18Z |
| Obs used |
113 |
| NEO |
- |
| M1 |
7.100 |
| K1 |
14.750 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2026-07-19T14:02:20.284800Z |
| Discovery magnitude (MPC) |
20.37 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2026-08-10.0000000 |
| e |
1.00129767 |
| q (au) |
1.500216 |
| a (au) |
-1156.086332 |
| i (deg) |
137.257311 |
| Ω (om, deg) |
177.926055 |
| ω (w, deg) |
304.389388 |
| M (ma, deg) |
-0.008584 |
밝기
산란 + 전체 선형
$$
M_a = (13.983 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
13.983 |
| n |
2.000 |
| gf |
0.999 |
| gb |
-0.836 |
| k |
0.993 |
| 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 |
23:07:52.61 |
-24:54:00.0 |
HIP 114242 |
10.73 |
| 2026-09-20 12:00 |
23:07:04.97 |
-25:01:04.2 |
HIP 114129 |
3.92 |
| 2026-09-21 00:00 |
23:06:17.25 |
-25:08:05.9 |
HIP 114129 |
9.00 |
| 2026-09-21 12:00 |
23:05:29.47 |
-25:15:05.1 |
HIP 114129 |
21.86 |
| 2026-09-22 00:00 |
23:04:41.64 |
-25:22:01.7 |
HIP 113948 |
19.52 |
| 2026-09-22 12:00 |
23:03:53.75 |
-25:28:55.6 |
HIP 113948 |
15.32 |
| 2026-09-23 00:00 |
23:03:05.82 |
-25:35:46.9 |
HIP 113891 |
14.60 |
| 2026-09-23 12:00 |
23:02:17.86 |
-25:42:35.5 |
HIP 113891 |
21.97 |
| 2026-09-24 00:00 |
23:01:29.86 |
-25:49:21.2 |
HIP 113593 |
18.82 |
| 2026-09-24 12:00 |
23:00:41.84 |
-25:56:04.1 |
HIP 113579 |
14.08 |
| 2026-09-25 00:00 |
22:59:53.81 |
-26:02:44.2 |
HIP 113579 |
8.62 |
| 2026-09-25 12:00 |
22:59:05.77 |
-26:09:21.3 |
HIP 113579 |
16.48 |
| 2026-09-26 00:00 |
22:58:17.73 |
-26:15:55.4 |
HIP 113386 |
11.57 |
| 2026-09-26 12:00 |
22:57:29.69 |
-26:22:26.6 |
HIP 113332 |
14.09 |
| 2026-09-27 00:00 |
22:56:41.67 |
-26:28:54.6 |
HIP 113238 |
15.10 |
| 2026-09-27 12:00 |
22:55:53.68 |
-26:35:19.6 |
HIP 113238 |
4.17 |
| 2026-09-28 00:00 |
22:55:05.71 |
-26:41:41.4 |
HIP 113238 |
10.91 |
| 2026-09-28 12:00 |
22:54:17.77 |
-26:48:00.0 |
HIP 113161 |
16.40 |
| 2026-09-29 00:00 |
22:53:29.88 |
-26:54:15.5 |
HIP 113161 |
20.64 |
| 2026-09-29 12:00 |
22:52:42.04 |
-27:00:27.6 |
HIP 112991 |
14.70 |
| 2026-09-30 00:00 |
22:51:54.25 |
-27:06:36.5 |
HIP 112991 |
16.58 |
| 2026-09-30 12:00 |
22:51:06.53 |
-27:12:42.0 |
HIP 112824 |
5.26 |
| 2026-10-01 00:00 |
22:50:18.89 |
-27:18:44.2 |
HIP 112824 |
7.92 |
| 2026-10-01 12:00 |
22:49:31.32 |
-27:24:43.0 |
HIP 112612 |
16.71 |
| 2026-10-02 00:00 |
22:48:43.84 |
-27:30:38.3 |
HIP 112612 |
4.72 |
| 2026-10-02 12:00 |
22:47:56.45 |
-27:36:30.2 |
HIP 112612 |
7.52 |
| 2026-10-03 00:00 |
22:47:09.17 |
-27:42:18.7 |
HIP 112612 |
19.44 |
| 2026-10-03 12:00 |
22:46:21.99 |
-27:48:03.6 |
HIP 112510 |
28.59 |
| 2026-10-04 00:00 |
22:45:34.93 |
-27:53:45.0 |
HIP 112176 |
35.28 |
| 2026-10-04 12:00 |
22:44:47.99 |
-27:59:22.8 |
HIP 112176 |
23.50 |
| 2026-10-05 00:00 |
22:44:01.18 |
-28:04:57.0 |
HIP 112176 |
11.82 |
| 2026-10-05 12:00 |
22:43:14.51 |
-28:10:27.7 |
HIP 112176 |
1.59 |
| 2026-10-06 00:00 |
22:42:27.99 |
-28:15:54.7 |
HIP 112176 |
11.67 |
| 2026-10-06 12:00 |
22:41:41.61 |
-28:21:18.0 |
HIP 112176 |
23.16 |
| 2026-10-07 00:00 |
22:40:55.40 |
-28:26:37.8 |
HIP 111882 |
16.22 |
| 2026-10-07 12:00 |
22:40:09.35 |
-28:31:53.8 |
HIP 111882 |
12.11 |
| 2026-10-08 00:00 |
22:39:23.47 |
-28:37:06.2 |
HIP 111801 |
11.53 |
| 2026-10-08 12:00 |
22:38:37.78 |
-28:42:14.8 |
HIP 111801 |
3.05 |
| 2026-10-09 00:00 |
22:37:52.27 |
-28:47:19.8 |
HIP 111692 |
4.51 |
| 2026-10-09 12:00 |
22:37:06.95 |
-28:52:21.1 |
HIP 111692 |
8.09 |
| 2026-10-10 00:00 |
22:36:21.83 |
-28:57:18.6 |
HIP 111705 |
18.47 |
| 2026-10-10 12:00 |
22:35:36.92 |
-29:02:12.4 |
HIP 111705 |
27.49 |
| 2026-10-11 00:00 |
22:34:52.23 |
-29:07:02.5 |
HIP 111311 |
25.77 |