메타데이터
| 항목 |
값 |
| Designation |
C/1980 R1 (Russell) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1981-03-06T03:48:13.415040Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:29Z |
| Obs used |
17 |
| NEO |
- |
| M1 |
10.400 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1980-10-13.0000000 |
| e |
1.00182492 |
| q (au) |
2.112445 |
| a (au) |
-1157.557626 |
| i (deg) |
128.706527 |
| Ω (om, deg) |
232.786557 |
| ω (w, deg) |
297.189306 |
| M (ma, deg) |
-0.003608 |
밝기
산란 + 전체 선형
$$
M_a = (10.779 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
10.779 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| 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) |
| 2026-07-29 00:00 |
10:49:55.43 |
+63:20:44.4 |
HIP 53256 |
27.05 |
| 2026-07-29 12:00 |
10:49:58.14 |
+63:20:28.7 |
HIP 53256 |
26.90 |
| 2026-07-30 00:00 |
10:50:00.86 |
+63:20:13.1 |
HIP 53256 |
26.76 |
| 2026-07-30 12:00 |
10:50:03.60 |
+63:19:57.6 |
HIP 53256 |
26.62 |
| 2026-07-31 00:00 |
10:50:06.35 |
+63:19:42.3 |
HIP 53256 |
26.48 |
| 2026-07-31 12:00 |
10:50:09.12 |
+63:19:27.0 |
HIP 53256 |
26.34 |
| 2026-08-01 00:00 |
10:50:11.91 |
+63:19:11.9 |
HIP 53256 |
26.21 |
| 2026-08-01 12:00 |
10:50:14.71 |
+63:18:56.9 |
HIP 53256 |
26.08 |
| 2026-08-02 00:00 |
10:50:17.52 |
+63:18:42.0 |
HIP 53256 |
25.96 |
| 2026-08-02 12:00 |
10:50:20.35 |
+63:18:27.2 |
HIP 53256 |
25.83 |
| 2026-08-03 00:00 |
10:50:23.19 |
+63:18:12.6 |
HIP 53256 |
25.71 |
| 2026-08-03 12:00 |
10:50:26.05 |
+63:17:58.1 |
HIP 53256 |
25.60 |
| 2026-08-04 00:00 |
10:50:28.92 |
+63:17:43.7 |
HIP 53256 |
25.48 |
| 2026-08-04 12:00 |
10:50:31.80 |
+63:17:29.4 |
HIP 53256 |
25.37 |
| 2026-08-05 00:00 |
10:50:34.70 |
+63:17:15.3 |
HIP 53256 |
25.27 |
| 2026-08-05 12:00 |
10:50:37.61 |
+63:17:01.2 |
HIP 53256 |
25.16 |
| 2026-08-06 00:00 |
10:50:40.53 |
+63:16:47.4 |
HIP 53256 |
25.06 |
| 2026-08-06 12:00 |
10:50:43.46 |
+63:16:33.6 |
HIP 53256 |
24.97 |
| 2026-08-07 00:00 |
10:50:46.41 |
+63:16:20.0 |
HIP 53256 |
24.87 |
| 2026-08-07 12:00 |
10:50:49.37 |
+63:16:06.5 |
HIP 53256 |
24.78 |
| 2026-08-08 00:00 |
10:50:52.35 |
+63:15:53.1 |
HIP 53256 |
24.70 |
| 2026-08-08 12:00 |
10:50:55.33 |
+63:15:39.8 |
HIP 53256 |
24.62 |
| 2026-08-09 00:00 |
10:50:58.33 |
+63:15:26.7 |
HIP 53256 |
24.54 |
| 2026-08-09 12:00 |
10:51:01.34 |
+63:15:13.8 |
HIP 53256 |
24.46 |
| 2026-08-10 00:00 |
10:51:04.36 |
+63:15:00.9 |
HIP 53256 |
24.39 |
| 2026-08-10 12:00 |
10:51:07.39 |
+63:14:48.3 |
HIP 53256 |
24.32 |
| 2026-08-11 00:00 |
10:51:10.43 |
+63:14:35.7 |
HIP 53256 |
24.26 |
| 2026-08-11 12:00 |
10:51:13.48 |
+63:14:23.3 |
HIP 53256 |
24.20 |
| 2026-08-12 00:00 |
10:51:16.54 |
+63:14:11.0 |
HIP 53256 |
24.14 |
| 2026-08-12 12:00 |
10:51:19.62 |
+63:13:58.9 |
HIP 53256 |
24.09 |
| 2026-08-13 00:00 |
10:51:22.70 |
+63:13:46.9 |
HIP 53256 |
24.04 |
| 2026-08-13 12:00 |
10:51:25.80 |
+63:13:35.0 |
HIP 53256 |
24.00 |
| 2026-08-14 00:00 |
10:51:28.90 |
+63:13:23.3 |
HIP 53256 |
23.96 |
| 2026-08-14 12:00 |
10:51:32.01 |
+63:13:11.8 |
HIP 53256 |
23.92 |
| 2026-08-15 00:00 |
10:51:35.13 |
+63:13:00.4 |
HIP 53256 |
23.89 |
| 2026-08-15 12:00 |
10:51:38.27 |
+63:12:49.1 |
HIP 53256 |
23.86 |
| 2026-08-16 00:00 |
10:51:41.40 |
+63:12:38.0 |
HIP 53256 |
23.83 |
| 2026-08-16 12:00 |
10:51:44.55 |
+63:12:27.0 |
HIP 53256 |
23.81 |
| 2026-08-17 00:00 |
10:51:47.71 |
+63:12:16.2 |
HIP 53256 |
23.80 |
| 2026-08-17 12:00 |
10:51:50.87 |
+63:12:05.5 |
HIP 53256 |
23.78 |
| 2026-08-18 00:00 |
10:51:54.05 |
+63:11:55.0 |
HIP 53256 |
23.77 |
| 2026-08-18 12:00 |
10:51:57.23 |
+63:11:44.6 |
HIP 53256 |
23.77 |
| 2026-08-19 00:00 |
10:52:00.41 |
+63:11:34.4 |
HIP 53256 |
23.77 |