C/2013 V3 (Nevski)
メタデータ
| 項目 |
値 |
| Designation |
C/2013 V3 (Nevski) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2013-10-29T21:44:27.254400Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:42Z |
| Obs used |
904 |
| NEO |
- |
| M1 |
15.400 |
| K1 |
5.750 |
| PC |
- |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2013-12-03.0000000 |
| e |
0.89097069 |
| q (au) |
1.386694 |
| a (au) |
12.718543 |
| i (deg) |
32.134529 |
| Ω (om, deg) |
100.918155 |
| ω (w, deg) |
339.643363 |
| M (ma, deg) |
0.740845 |
等級
散乱 + 全体線形
$$
M_a = (12.743 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
12.743 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.500 |
| k |
1.000 |
| δ90 |
10.000 |
| パラメータ |
記号 |
範囲 |
説明 |
| 太陽・地球距離が1 AUのときの絶対等級 |
H0 |
-5 to 20 |
彗星の固有の明るさ |
| 測光スロープパラメータ |
n |
2 to 6 |
太陽距離に対する明るさ変化率 |
| 前方散乱非対称係数 |
gf |
0.8 to 1 |
前方散乱の強さ |
| 後方散乱非対称係数 |
gb |
-1 to -0.5 |
後方散乱の強さ |
| 分配係数 |
k |
0.8 to 1 |
前方/後方散乱の寄与比 |
| ダスト/ガス明るさ比 |
δ90 |
1 to 10 |
ダスト散乱とガス放射の相対寄与 |
参考: EPSC-DPS2025-160
残差 (区間線形)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 開始日 (UTC) |
終了日 (UTC) |
a |
b |
| 2013-11-06 |
2014-03-08 |
+9.0237 |
-2.664 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
17:04:07.72 |
-06:48:10.1 |
HIP 83414 |
32.14 |
| 2026-02-03 12:00 |
17:04:11.23 |
-06:47:58.5 |
HIP 83414 |
32.46 |
| 2026-02-04 00:00 |
17:04:14.71 |
-06:47:46.6 |
HIP 83414 |
32.80 |
| 2026-02-04 12:00 |
17:04:18.14 |
-06:47:34.6 |
HIP 83414 |
33.14 |
| 2026-02-05 00:00 |
17:04:21.54 |
-06:47:22.4 |
HIP 83414 |
33.50 |
| 2026-02-05 12:00 |
17:04:24.89 |
-06:47:10.1 |
HIP 83414 |
33.86 |
| 2026-02-06 00:00 |
17:04:28.21 |
-06:46:57.6 |
HIP 83414 |
34.24 |
| 2026-02-06 12:00 |
17:04:31.48 |
-06:46:44.8 |
HIP 83414 |
34.62 |
| 2026-02-07 00:00 |
17:04:34.71 |
-06:46:32.0 |
HIP 83414 |
35.01 |
| 2026-02-07 12:00 |
17:04:37.90 |
-06:46:18.9 |
HIP 83414 |
35.40 |
| 2026-02-08 00:00 |
17:04:41.05 |
-06:46:05.7 |
HIP 83414 |
35.80 |
| 2026-02-08 12:00 |
17:04:44.15 |
-06:45:52.3 |
HIP 83414 |
36.21 |
| 2026-02-09 00:00 |
17:04:47.22 |
-06:45:38.7 |
HIP 83414 |
36.62 |
| 2026-02-09 12:00 |
17:04:50.24 |
-06:45:25.0 |
HIP 83414 |
37.03 |
| 2026-02-10 00:00 |
17:04:53.22 |
-06:45:11.1 |
HIP 83414 |
37.44 |
| 2026-02-10 12:00 |
17:04:56.15 |
-06:44:57.1 |
HIP 83414 |
37.85 |
| 2026-02-11 00:00 |
17:04:59.04 |
-06:44:42.9 |
HIP 83414 |
38.27 |
| 2026-02-11 12:00 |
17:05:01.89 |
-06:44:28.5 |
HIP 83676 |
38.19 |
| 2026-02-12 00:00 |
17:05:04.70 |
-06:44:13.9 |
HIP 83676 |
37.68 |
| 2026-02-12 12:00 |
17:05:07.46 |
-06:43:59.2 |
HIP 83676 |
37.17 |
| 2026-02-13 00:00 |
17:05:10.17 |
-06:43:44.4 |
HIP 83676 |
36.67 |
| 2026-02-13 12:00 |
17:05:12.85 |
-06:43:29.3 |
HIP 83676 |
36.18 |
| 2026-02-14 00:00 |
17:05:15.47 |
-06:43:14.2 |
HIP 83676 |
35.71 |
| 2026-02-14 12:00 |
17:05:18.06 |
-06:42:58.8 |
HIP 83676 |
35.24 |
| 2026-02-15 00:00 |
17:05:20.59 |
-06:42:43.4 |
HIP 83676 |
34.78 |
| 2026-02-15 12:00 |
17:05:23.09 |
-06:42:27.7 |
HIP 83676 |
34.32 |
| 2026-02-16 00:00 |
17:05:25.53 |
-06:42:11.9 |
HIP 83676 |
33.88 |
| 2026-02-16 12:00 |
17:05:27.93 |
-06:41:56.0 |
HIP 83676 |
33.44 |
| 2026-02-17 00:00 |
17:05:30.29 |
-06:41:39.9 |
HIP 83676 |
33.02 |
| 2026-02-17 12:00 |
17:05:32.60 |
-06:41:23.7 |
HIP 83676 |
32.60 |
| 2026-02-18 00:00 |
17:05:34.86 |
-06:41:07.3 |
HIP 83676 |
32.18 |
| 2026-02-18 12:00 |
17:05:37.08 |
-06:40:50.8 |
HIP 83676 |
31.78 |
| 2026-02-19 00:00 |
17:05:39.25 |
-06:40:34.1 |
HIP 83676 |
31.38 |
| 2026-02-19 12:00 |
17:05:41.37 |
-06:40:17.4 |
HIP 83676 |
30.99 |
| 2026-02-20 00:00 |
17:05:43.45 |
-06:40:00.4 |
HIP 83676 |
30.61 |
| 2026-02-20 12:00 |
17:05:45.48 |
-06:39:43.3 |
HIP 83676 |
30.23 |
| 2026-02-21 00:00 |
17:05:47.46 |
-06:39:26.1 |
HIP 83676 |
29.86 |
| 2026-02-21 12:00 |
17:05:49.39 |
-06:39:08.8 |
HIP 83676 |
29.50 |
| 2026-02-22 00:00 |
17:05:51.28 |
-06:38:51.3 |
HIP 83676 |
29.14 |
| 2026-02-22 12:00 |
17:05:53.12 |
-06:38:33.7 |
HIP 83676 |
28.78 |
| 2026-02-23 00:00 |
17:05:54.91 |
-06:38:16.0 |
HIP 83676 |
28.44 |
| 2026-02-23 12:00 |
17:05:56.66 |
-06:37:58.2 |
HIP 83676 |
28.09 |
| 2026-02-24 00:00 |
17:05:58.35 |
-06:37:40.2 |
HIP 83676 |
27.75 |