C/2004 RG113 (LINEAR)
メタデータ
| 項目 |
値 |
| Designation |
C/2004 RG113 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2005-03-03T17:13:10.678080Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:43Z |
| Obs used |
414 |
| NEO |
- |
| M1 |
13.900 |
| K1 |
8.000 |
| PC |
0.030 |
オスキュレーティング軌道要素
| 項目 |
値 |
| Epoch (epoch_cal, TDB) |
2005-02-11.0000000 |
| e |
0.99722336 |
| q (au) |
1.942358 |
| a (au) |
699.536709 |
| i (deg) |
21.618236 |
| Ω (om, deg) |
8.772958 |
| ω (w, deg) |
125.305509 |
| M (ma, deg) |
359.998896 |
等級
散乱 + 全体線形
$$
M_a = (9.533 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
モデル定数
| 項目 |
値 |
| H0 |
9.533 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.999 |
| 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
天体暦
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-02-03 00:00 |
19:44:49.63 |
-42:15:39.9 |
HIP 97205 |
11.41 |
| 2026-02-03 12:00 |
19:44:53.46 |
-42:15:37.9 |
HIP 97205 |
11.02 |
| 2026-02-04 00:00 |
19:44:57.28 |
-42:15:36.0 |
HIP 97205 |
10.66 |
| 2026-02-04 12:00 |
19:45:01.09 |
-42:15:34.2 |
HIP 97205 |
10.35 |
| 2026-02-05 00:00 |
19:45:04.89 |
-42:15:32.5 |
HIP 97205 |
10.07 |
| 2026-02-05 12:00 |
19:45:08.68 |
-42:15:31.0 |
HIP 97205 |
9.85 |
| 2026-02-06 00:00 |
19:45:12.46 |
-42:15:29.7 |
HIP 97205 |
9.67 |
| 2026-02-06 12:00 |
19:45:16.22 |
-42:15:28.5 |
HIP 97205 |
9.54 |
| 2026-02-07 00:00 |
19:45:19.97 |
-42:15:27.4 |
HIP 97205 |
9.46 |
| 2026-02-07 12:00 |
19:45:23.71 |
-42:15:26.5 |
HIP 97205 |
9.44 |
| 2026-02-08 00:00 |
19:45:27.43 |
-42:15:25.7 |
HIP 97205 |
9.47 |
| 2026-02-08 12:00 |
19:45:31.14 |
-42:15:25.0 |
HIP 97205 |
9.55 |
| 2026-02-09 00:00 |
19:45:34.84 |
-42:15:24.5 |
HIP 97205 |
9.68 |
| 2026-02-09 12:00 |
19:45:38.52 |
-42:15:24.2 |
HIP 97205 |
9.86 |
| 2026-02-10 00:00 |
19:45:42.19 |
-42:15:24.0 |
HIP 97205 |
10.08 |
| 2026-02-10 12:00 |
19:45:45.84 |
-42:15:23.9 |
HIP 97205 |
10.35 |
| 2026-02-11 00:00 |
19:45:49.48 |
-42:15:24.0 |
HIP 97205 |
10.65 |
| 2026-02-11 12:00 |
19:45:53.11 |
-42:15:24.2 |
HIP 97205 |
10.99 |
| 2026-02-12 00:00 |
19:45:56.72 |
-42:15:24.6 |
HIP 97205 |
11.35 |
| 2026-02-12 12:00 |
19:46:00.31 |
-42:15:25.1 |
HIP 97205 |
11.74 |
| 2026-02-13 00:00 |
19:46:03.89 |
-42:15:25.7 |
HIP 97205 |
12.16 |
| 2026-02-13 12:00 |
19:46:07.45 |
-42:15:26.5 |
HIP 97205 |
12.60 |
| 2026-02-14 00:00 |
19:46:11.00 |
-42:15:27.4 |
HIP 97205 |
13.05 |
| 2026-02-14 12:00 |
19:46:14.53 |
-42:15:28.5 |
HIP 97205 |
13.53 |
| 2026-02-15 00:00 |
19:46:18.04 |
-42:15:29.7 |
HIP 97205 |
14.01 |
| 2026-02-15 12:00 |
19:46:21.54 |
-42:15:31.1 |
HIP 97205 |
14.51 |
| 2026-02-16 00:00 |
19:46:25.01 |
-42:15:32.6 |
HIP 97205 |
15.02 |
| 2026-02-16 12:00 |
19:46:28.47 |
-42:15:34.3 |
HIP 97205 |
15.54 |
| 2026-02-17 00:00 |
19:46:31.92 |
-42:15:36.1 |
HIP 97205 |
16.06 |
| 2026-02-17 12:00 |
19:46:35.34 |
-42:15:38.0 |
HIP 97205 |
16.59 |
| 2026-02-18 00:00 |
19:46:38.75 |
-42:15:40.1 |
HIP 97205 |
17.13 |
| 2026-02-18 12:00 |
19:46:42.14 |
-42:15:42.3 |
HIP 97205 |
17.67 |
| 2026-02-19 00:00 |
19:46:45.51 |
-42:15:44.7 |
HIP 97205 |
18.22 |
| 2026-02-19 12:00 |
19:46:48.86 |
-42:15:47.2 |
HIP 97394 |
18.09 |
| 2026-02-20 00:00 |
19:46:52.19 |
-42:15:49.8 |
HIP 97394 |
17.81 |
| 2026-02-20 12:00 |
19:46:55.50 |
-42:15:52.6 |
HIP 97394 |
17.55 |
| 2026-02-21 00:00 |
19:46:58.79 |
-42:15:55.6 |
HIP 97394 |
17.32 |
| 2026-02-21 12:00 |
19:47:02.06 |
-42:15:58.7 |
HIP 97394 |
17.10 |
| 2026-02-22 00:00 |
19:47:05.32 |
-42:16:01.9 |
HIP 97394 |
16.91 |
| 2026-02-22 12:00 |
19:47:08.55 |
-42:16:05.3 |
HIP 97394 |
16.74 |
| 2026-02-23 00:00 |
19:47:11.76 |
-42:16:08.8 |
HIP 97394 |
16.59 |
| 2026-02-23 12:00 |
19:47:14.95 |
-42:16:12.4 |
HIP 97394 |
16.47 |
| 2026-02-24 00:00 |
19:47:18.12 |
-42:16:16.2 |
HIP 97394 |
16.37 |