메타데이터
| 항목 |
값 |
| Designation |
C/2014 W3 (PANSTARRS) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2014-02-27T04:51:52.917120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:33:02Z |
| Obs used |
47 |
| NEO |
- |
| M1 |
8.900 |
| K1 |
10.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2015-03-21.0000000 |
| e |
1.00695932 |
| q (au) |
6.066200 |
| a (au) |
-871.665470 |
| i (deg) |
90.112871 |
| Ω (om, deg) |
286.373358 |
| ω (w, deg) |
158.916349 |
| M (ma, deg) |
0.014814 |
밝기
산란 + 전체 선형
$$
M_a = (11.948 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
11.948 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-07-29 00:00 |
05:34:45.03 |
-74:26:36.2 |
HIP 26352 |
18.07 |
| 2026-07-29 12:00 |
05:34:56.75 |
-74:27:31.4 |
HIP 26352 |
16.91 |
| 2026-07-30 00:00 |
05:35:08.38 |
-74:28:26.9 |
HIP 26352 |
15.75 |
| 2026-07-30 12:00 |
05:35:19.94 |
-74:29:22.9 |
HIP 26352 |
14.60 |
| 2026-07-31 00:00 |
05:35:31.42 |
-74:30:19.2 |
HIP 26352 |
13.45 |
| 2026-07-31 12:00 |
05:35:42.82 |
-74:31:15.9 |
HIP 26352 |
12.31 |
| 2026-08-01 00:00 |
05:35:54.14 |
-74:32:13.0 |
HIP 26352 |
11.18 |
| 2026-08-01 12:00 |
05:36:05.38 |
-74:33:10.4 |
HIP 26352 |
10.06 |
| 2026-08-02 00:00 |
05:36:16.55 |
-74:34:08.2 |
HIP 26352 |
8.97 |
| 2026-08-02 12:00 |
05:36:27.63 |
-74:35:06.3 |
HIP 26352 |
7.90 |
| 2026-08-03 00:00 |
05:36:38.62 |
-74:36:04.8 |
HIP 26352 |
6.88 |
| 2026-08-03 12:00 |
05:36:49.54 |
-74:37:03.7 |
HIP 26352 |
5.93 |
| 2026-08-04 00:00 |
05:37:00.37 |
-74:38:02.9 |
HIP 26352 |
5.08 |
| 2026-08-04 12:00 |
05:37:11.11 |
-74:39:02.4 |
HIP 26352 |
4.41 |
| 2026-08-05 00:00 |
05:37:21.77 |
-74:40:02.3 |
HIP 26352 |
3.99 |
| 2026-08-05 12:00 |
05:37:32.34 |
-74:41:02.6 |
HIP 26352 |
3.91 |
| 2026-08-06 00:00 |
05:37:42.82 |
-74:42:03.2 |
HIP 26352 |
4.20 |
| 2026-08-06 12:00 |
05:37:53.22 |
-74:43:04.1 |
HIP 26352 |
4.78 |
| 2026-08-07 00:00 |
05:38:03.52 |
-74:44:05.4 |
HIP 26352 |
5.57 |
| 2026-08-07 12:00 |
05:38:13.73 |
-74:45:07.0 |
HIP 26352 |
6.50 |
| 2026-08-08 00:00 |
05:38:23.85 |
-74:46:09.0 |
HIP 26352 |
7.50 |
| 2026-08-08 12:00 |
05:38:33.88 |
-74:47:11.3 |
HIP 26352 |
8.56 |
| 2026-08-09 00:00 |
05:38:43.81 |
-74:48:13.9 |
HIP 26352 |
9.66 |
| 2026-08-09 12:00 |
05:38:53.65 |
-74:49:16.8 |
HIP 26352 |
10.78 |
| 2026-08-10 00:00 |
05:39:03.39 |
-74:50:20.0 |
HIP 26352 |
11.92 |
| 2026-08-10 12:00 |
05:39:13.03 |
-74:51:23.6 |
HIP 26352 |
13.08 |
| 2026-08-11 00:00 |
05:39:22.58 |
-74:52:27.5 |
HIP 26900 |
12.87 |
| 2026-08-11 12:00 |
05:39:32.03 |
-74:53:31.7 |
HIP 26900 |
12.37 |
| 2026-08-12 00:00 |
05:39:41.37 |
-74:54:36.2 |
HIP 26900 |
11.99 |
| 2026-08-12 12:00 |
05:39:50.62 |
-74:55:41.0 |
HIP 26900 |
11.74 |
| 2026-08-13 00:00 |
05:39:59.76 |
-74:56:46.1 |
HIP 26900 |
11.63 |
| 2026-08-13 12:00 |
05:40:08.80 |
-74:57:51.5 |
HIP 26900 |
11.65 |
| 2026-08-14 00:00 |
05:40:17.73 |
-74:58:57.2 |
HIP 26900 |
11.82 |
| 2026-08-14 12:00 |
05:40:26.56 |
-75:00:03.2 |
HIP 26900 |
12.12 |
| 2026-08-15 00:00 |
05:40:35.28 |
-75:01:09.4 |
HIP 26900 |
12.54 |
| 2026-08-15 12:00 |
05:40:43.90 |
-75:02:16.0 |
HIP 26900 |
13.08 |
| 2026-08-16 00:00 |
05:40:52.41 |
-75:03:22.8 |
HIP 26900 |
13.72 |
| 2026-08-16 12:00 |
05:41:00.81 |
-75:04:29.9 |
HIP 26900 |
14.45 |
| 2026-08-17 00:00 |
05:41:09.10 |
-75:05:37.3 |
HIP 26900 |
15.25 |
| 2026-08-17 12:00 |
05:41:17.27 |
-75:06:45.0 |
HIP 26900 |
16.11 |
| 2026-08-18 00:00 |
05:41:25.34 |
-75:07:52.9 |
HIP 26900 |
17.03 |
| 2026-08-18 12:00 |
05:41:33.29 |
-75:09:01.0 |
HIP 26900 |
17.99 |
| 2026-08-19 00:00 |
05:41:41.13 |
-75:10:09.5 |
HIP 26900 |
18.99 |