메타데이터
| 항목 |
값 |
| Designation |
P/2022 C1 (PANSTARRS) |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2021-11-04T08:47:01.587840Z |
| Orbit solution date (soln_date, UTC) |
2023-05-03T22:43:58Z |
| Obs used |
61 |
| NEO |
- |
| M1 |
15.700 |
| K1 |
4.500 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2022-02-03T07:57:07.516800Z |
| Discovery magnitude (MPC) |
20.85 w |
| Discovery observatory (MPC) |
F52 · Pan-STARRS 2, Haleakala |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2022-02-23.0000000 |
| e |
0.44770397 |
| q (au) |
3.985559 |
| a (au) |
7.216346 |
| i (deg) |
4.762986 |
| Ω (om, deg) |
113.151420 |
| ω (w, deg) |
9.340297 |
| M (ma, deg) |
5.624924 |
밝기
산란 + 전체 선형
$$
M_a = (18.330 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
18.330 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.738 |
| k |
0.800 |
| 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) |
| 2026-05-12 00:00 |
17:07:07.42 |
-19:30:46.7 |
HIP 83761 |
0.47 |
| 2026-05-12 12:00 |
17:06:57.22 |
-19:30:32.1 |
HIP 83761 |
2.24 |
| 2026-05-13 00:00 |
17:06:46.95 |
-19:30:17.5 |
HIP 83761 |
4.65 |
| 2026-05-13 12:00 |
17:06:36.60 |
-19:30:02.8 |
HIP 83761 |
7.10 |
| 2026-05-14 00:00 |
17:06:26.20 |
-19:29:48.2 |
HIP 83761 |
9.56 |
| 2026-05-14 12:00 |
17:06:15.72 |
-19:29:33.5 |
HIP 83761 |
12.04 |
| 2026-05-15 00:00 |
17:06:05.18 |
-19:29:18.8 |
HIP 83761 |
14.53 |
| 2026-05-15 12:00 |
17:05:54.57 |
-19:29:04.1 |
HIP 83761 |
17.04 |
| 2026-05-16 00:00 |
17:05:43.90 |
-19:28:49.4 |
HIP 83761 |
19.57 |
| 2026-05-16 12:00 |
17:05:33.17 |
-19:28:34.6 |
HIP 83761 |
22.11 |
| 2026-05-17 00:00 |
17:05:22.38 |
-19:28:19.9 |
HIP 83761 |
24.67 |
| 2026-05-17 12:00 |
17:05:11.53 |
-19:28:05.2 |
HIP 83474 |
22.46 |
| 2026-05-18 00:00 |
17:05:00.62 |
-19:27:50.4 |
HIP 83474 |
19.89 |
| 2026-05-18 12:00 |
17:04:49.66 |
-19:27:35.7 |
HIP 83474 |
17.30 |
| 2026-05-19 00:00 |
17:04:38.65 |
-19:27:20.9 |
HIP 83474 |
14.71 |
| 2026-05-19 12:00 |
17:04:27.58 |
-19:27:06.2 |
HIP 83474 |
12.11 |
| 2026-05-20 00:00 |
17:04:16.46 |
-19:26:51.5 |
HIP 83474 |
9.52 |
| 2026-05-20 12:00 |
17:04:05.29 |
-19:26:36.7 |
HIP 83474 |
6.93 |
| 2026-05-21 00:00 |
17:03:54.08 |
-19:26:22.0 |
HIP 83474 |
4.42 |
| 2026-05-21 12:00 |
17:03:42.82 |
-19:26:07.3 |
HIP 83474 |
2.23 |
| 2026-05-22 00:00 |
17:03:31.51 |
-19:25:52.6 |
HIP 83474 |
2.16 |
| 2026-05-22 12:00 |
17:03:20.16 |
-19:25:37.9 |
HIP 83452 |
3.92 |
| 2026-05-23 00:00 |
17:03:08.77 |
-19:25:23.2 |
HIP 83452 |
4.84 |
| 2026-05-23 12:00 |
17:02:57.34 |
-19:25:08.6 |
HIP 83452 |
6.79 |
| 2026-05-24 00:00 |
17:02:45.88 |
-19:24:53.9 |
HIP 83452 |
9.14 |
| 2026-05-24 12:00 |
17:02:34.37 |
-19:24:39.3 |
HIP 83452 |
11.66 |
| 2026-05-25 00:00 |
17:02:22.83 |
-19:24:24.7 |
HIP 83452 |
14.26 |
| 2026-05-25 12:00 |
17:02:11.26 |
-19:24:10.1 |
HIP 83452 |
16.91 |
| 2026-05-26 00:00 |
17:01:59.65 |
-19:23:55.5 |
HIP 83452 |
19.59 |
| 2026-05-26 12:00 |
17:01:48.01 |
-19:23:41.0 |
HIP 83452 |
22.30 |
| 2026-05-27 00:00 |
17:01:36.35 |
-19:23:26.5 |
HIP 83209 |
22.63 |
| 2026-05-27 12:00 |
17:01:24.65 |
-19:23:12.0 |
HIP 83209 |
20.31 |
| 2026-05-28 00:00 |
17:01:12.93 |
-19:22:57.6 |
HIP 83209 |
18.11 |
| 2026-05-28 12:00 |
17:01:01.18 |
-19:22:43.2 |
HIP 83209 |
16.09 |
| 2026-05-29 00:00 |
17:00:49.41 |
-19:22:28.8 |
HIP 83209 |
14.32 |
| 2026-05-29 12:00 |
17:00:37.62 |
-19:22:14.4 |
HIP 83209 |
12.92 |
| 2026-05-30 00:00 |
17:00:25.81 |
-19:22:00.1 |
HIP 83209 |
12.01 |
| 2026-05-30 12:00 |
17:00:13.98 |
-19:21:45.9 |
HIP 83209 |
11.72 |
| 2026-05-31 00:00 |
17:00:02.13 |
-19:21:31.7 |
HIP 83125 |
11.58 |
| 2026-05-31 12:00 |
16:59:50.26 |
-19:21:17.5 |
HIP 83125 |
9.14 |
| 2026-06-01 00:00 |
16:59:38.38 |
-19:21:03.4 |
HIP 83125 |
6.99 |
| 2026-06-01 12:00 |
16:59:26.49 |
-19:20:49.3 |
HIP 83125 |
5.47 |
| 2026-06-02 00:00 |
16:59:14.59 |
-19:20:35.3 |
HIP 83125 |
5.18 |