101P/Chernykh
メタデータ
| 項目 | 値 |
|---|---|
| Designation | 101P/Chernykh |
| Type | P |
| Perihelion (tp_cal, UTC) | 2020-01-07T18:38:07.975680Z |
| Orbit solution date (soln_date, UTC) | 2024-08-26T10:57:16Z |
| Obs used | 1211 |
| NEO | - |
| M1 | 13.700 |
| K1 | 4.500 |
| PC | - |
オスキュレーティング軌道要素
| 項目 | 値 |
|---|---|
| Epoch (epoch_cal, TDB) | 2014-10-13.0000000 |
| e | 0.59774254 |
| q (au) | 2.325778 |
| a (au) | 5.781815 |
| i (deg) | 5.033943 |
| Ω (om, deg) | 116.589097 |
| ω (w, deg) | 277.434541 |
| M (ma, deg) | 224.396168 |
等級
散乱 + 全体線形
$$ M_a = (12.453 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta $$ $$ \theta = 180^\circ - \alpha $$ $$ \Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b) $$ $$ \Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1 $$
モデル定数
| 項目 | 値 |
|---|---|
| H0 | 12.453 |
| n | 2.000 |
| gf | 1.000 |
| gb | -0.997 |
| 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 |
|---|---|---|---|
| 2019-07-04 | 2020-01-07 | +34.8196 | -13.263 |
| 2020-01-08 | 2021-01-03 | +3.7173 | -2.221 |
| 2021-01-03 | 2022-03-01 | +4.6114 | -3.220 |
log10 r = log10(太陽距離/AU)、Δ = 地球距離(AU)
ファインディングチャート
天体暦
| Date/Time (UTC) | RA (J2000) | Dec (J2000) | Nearest HIP | Dist from HIP (arcmin) |
|---|---|---|---|---|
| 2026-09-20 00:00 | 13:51:22.38 | -06:31:23.7 | HIP 67765 | 22.89 |
| 2026-09-20 12:00 | 13:51:33.99 | -06:32:36.6 | HIP 67765 | 20.19 |
| 2026-09-21 00:00 | 13:51:45.64 | -06:33:49.6 | HIP 67765 | 17.61 |
| 2026-09-21 12:00 | 13:51:57.33 | -06:35:02.7 | HIP 67765 | 15.23 |
| 2026-09-22 00:00 | 13:52:09.07 | -06:36:15.9 | HIP 67765 | 13.18 |
| 2026-09-22 12:00 | 13:52:20.84 | -06:37:29.2 | HIP 67765 | 11.63 |
| 2026-09-23 00:00 | 13:52:32.65 | -06:38:42.5 | HIP 67765 | 10.81 |
| 2026-09-23 12:00 | 13:52:44.50 | -06:39:55.9 | HIP 67765 | 10.88 |
| 2026-09-24 00:00 | 13:52:56.39 | -06:41:09.4 | HIP 67765 | 11.85 |
| 2026-09-24 12:00 | 13:53:08.31 | -06:42:23.0 | HIP 67765 | 13.53 |
| 2026-09-25 00:00 | 13:53:20.28 | -06:43:36.6 | HIP 67765 | 15.70 |
| 2026-09-25 12:00 | 13:53:32.28 | -06:44:50.3 | HIP 67765 | 18.18 |
| 2026-09-26 00:00 | 13:53:44.32 | -06:46:04.1 | HIP 67765 | 20.87 |
| 2026-09-26 12:00 | 13:53:56.39 | -06:47:17.9 | HIP 67765 | 23.71 |
| 2026-09-27 00:00 | 13:54:08.50 | -06:48:31.8 | HIP 67765 | 26.64 |
| 2026-09-27 12:00 | 13:54:20.64 | -06:49:45.7 | HIP 67765 | 29.65 |
| 2026-09-28 00:00 | 13:54:32.82 | -06:50:59.7 | HIP 68063 | 32.11 |
| 2026-09-28 12:00 | 13:54:45.03 | -06:52:13.8 | HIP 68063 | 30.80 |
| 2026-09-29 00:00 | 13:54:57.28 | -06:53:27.8 | HIP 68063 | 29.79 |
| 2026-09-29 12:00 | 13:55:09.56 | -06:54:41.9 | HIP 68063 | 29.11 |
| 2026-09-30 00:00 | 13:55:21.87 | -06:55:56.1 | HIP 68063 | 28.79 |
| 2026-09-30 12:00 | 13:55:34.21 | -06:57:10.3 | HIP 68116 | 27.78 |
| 2026-10-01 00:00 | 13:55:46.59 | -06:58:24.5 | HIP 68116 | 24.93 |
| 2026-10-01 12:00 | 13:55:59.00 | -06:59:38.7 | HIP 68116 | 22.20 |
| 2026-10-02 00:00 | 13:56:11.44 | -07:00:53.0 | HIP 68116 | 19.65 |
| 2026-10-02 12:00 | 13:56:23.91 | -07:02:07.3 | HIP 68116 | 17.36 |
| 2026-10-03 00:00 | 13:56:36.41 | -07:03:21.6 | HIP 68116 | 15.45 |
| 2026-10-03 12:00 | 13:56:48.94 | -07:04:35.9 | HIP 68116 | 14.09 |
| 2026-10-04 00:00 | 13:57:01.49 | -07:05:50.3 | HIP 68116 | 13.45 |
| 2026-10-04 12:00 | 13:57:14.08 | -07:07:04.6 | HIP 68116 | 13.62 |
| 2026-10-05 00:00 | 13:57:26.70 | -07:08:19.0 | HIP 68116 | 14.60 |
| 2026-10-05 12:00 | 13:57:39.34 | -07:09:33.3 | HIP 68116 | 16.23 |
| 2026-10-06 00:00 | 13:57:52.01 | -07:10:47.7 | HIP 68116 | 18.35 |
| 2026-10-06 12:00 | 13:58:04.70 | -07:12:02.1 | HIP 68254 | 20.34 |
| 2026-10-07 00:00 | 13:58:17.43 | -07:13:16.4 | HIP 68309 | 20.66 |
| 2026-10-07 12:00 | 13:58:30.17 | -07:14:30.7 | HIP 68309 | 20.39 |
| 2026-10-08 00:00 | 13:58:42.94 | -07:15:45.0 | HIP 68309 | 20.68 |
| 2026-10-08 12:00 | 13:58:55.74 | -07:16:59.3 | HIP 68309 | 21.51 |
| 2026-10-09 00:00 | 13:59:08.56 | -07:18:13.6 | HIP 68309 | 22.82 |
| 2026-10-09 12:00 | 13:59:21.40 | -07:19:27.9 | HIP 68309 | 24.55 |
| 2026-10-10 00:00 | 13:59:34.27 | -07:20:42.1 | HIP 68471 | 26.54 |
| 2026-10-10 12:00 | 13:59:47.16 | -07:21:56.3 | HIP 68471 | 24.60 |
| 2026-10-11 00:00 | 14:00:00.06 | -07:23:10.4 | HIP 68471 | 23.00 |