메타데이터
| 항목 |
값 |
| Designation |
C/1996 P2 (Russell-Watson) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1996-03-01T07:54:27.348480Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:50Z |
| Obs used |
157 |
| NEO |
- |
| M1 |
5.000 |
| K1 |
12.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1996-11-19.0000000 |
| e |
1.00008354 |
| q (au) |
2.005854 |
| a (au) |
-24011.991404 |
| i (deg) |
29.083130 |
| Ω (om, deg) |
101.403478 |
| ω (w, deg) |
188.799531 |
| M (ma, deg) |
0.000070 |
밝기
산란 + 전체 선형
$$
M_a = (6.223 + 4.641\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.223 |
| n |
4.641 |
| gf |
0.998 |
| gb |
-1.000 |
| k |
0.999 |
| δ90 |
1.000 |
| 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) |
| 2026-09-20 00:00 |
06:02:26.73 |
+16:54:34.8 |
HIP 28556 |
11.34 |
| 2026-09-20 12:00 |
06:02:26.91 |
+16:54:31.6 |
HIP 28556 |
11.39 |
| 2026-09-21 00:00 |
06:02:27.07 |
+16:54:28.4 |
HIP 28556 |
11.43 |
| 2026-09-21 12:00 |
06:02:27.21 |
+16:54:25.2 |
HIP 28556 |
11.47 |
| 2026-09-22 00:00 |
06:02:27.33 |
+16:54:22.0 |
HIP 28556 |
11.51 |
| 2026-09-22 12:00 |
06:02:27.43 |
+16:54:18.8 |
HIP 28556 |
11.54 |
| 2026-09-23 00:00 |
06:02:27.51 |
+16:54:15.6 |
HIP 28556 |
11.57 |
| 2026-09-23 12:00 |
06:02:27.57 |
+16:54:12.4 |
HIP 28556 |
11.59 |
| 2026-09-24 00:00 |
06:02:27.61 |
+16:54:09.2 |
HIP 28556 |
11.61 |
| 2026-09-24 12:00 |
06:02:27.63 |
+16:54:06.0 |
HIP 28556 |
11.62 |
| 2026-09-25 00:00 |
06:02:27.64 |
+16:54:02.8 |
HIP 28556 |
11.63 |
| 2026-09-25 12:00 |
06:02:27.62 |
+16:53:59.6 |
HIP 28556 |
11.64 |
| 2026-09-26 00:00 |
06:02:27.58 |
+16:53:56.4 |
HIP 28556 |
11.64 |
| 2026-09-26 12:00 |
06:02:27.52 |
+16:53:53.2 |
HIP 28556 |
11.63 |
| 2026-09-27 00:00 |
06:02:27.44 |
+16:53:50.0 |
HIP 28556 |
11.62 |
| 2026-09-27 12:00 |
06:02:27.34 |
+16:53:46.8 |
HIP 28556 |
11.61 |
| 2026-09-28 00:00 |
06:02:27.22 |
+16:53:43.6 |
HIP 28556 |
11.59 |
| 2026-09-28 12:00 |
06:02:27.08 |
+16:53:40.4 |
HIP 28556 |
11.57 |
| 2026-09-29 00:00 |
06:02:26.92 |
+16:53:37.3 |
HIP 28556 |
11.55 |
| 2026-09-29 12:00 |
06:02:26.74 |
+16:53:34.1 |
HIP 28556 |
11.52 |
| 2026-09-30 00:00 |
06:02:26.54 |
+16:53:30.9 |
HIP 28556 |
11.48 |
| 2026-09-30 12:00 |
06:02:26.32 |
+16:53:27.7 |
HIP 28556 |
11.44 |
| 2026-10-01 00:00 |
06:02:26.08 |
+16:53:24.5 |
HIP 28556 |
11.40 |
| 2026-10-01 12:00 |
06:02:25.83 |
+16:53:21.4 |
HIP 28556 |
11.35 |
| 2026-10-02 00:00 |
06:02:25.55 |
+16:53:18.2 |
HIP 28556 |
11.30 |
| 2026-10-02 12:00 |
06:02:25.25 |
+16:53:15.0 |
HIP 28556 |
11.24 |
| 2026-10-03 00:00 |
06:02:24.93 |
+16:53:11.9 |
HIP 28556 |
11.18 |
| 2026-10-03 12:00 |
06:02:24.59 |
+16:53:08.7 |
HIP 28556 |
11.12 |
| 2026-10-04 00:00 |
06:02:24.23 |
+16:53:05.6 |
HIP 28556 |
11.05 |
| 2026-10-04 12:00 |
06:02:23.85 |
+16:53:02.5 |
HIP 28556 |
10.97 |
| 2026-10-05 00:00 |
06:02:23.45 |
+16:52:59.3 |
HIP 28556 |
10.90 |
| 2026-10-05 12:00 |
06:02:23.03 |
+16:52:56.2 |
HIP 28556 |
10.82 |
| 2026-10-06 00:00 |
06:02:22.59 |
+16:52:53.1 |
HIP 28556 |
10.73 |
| 2026-10-06 12:00 |
06:02:22.13 |
+16:52:50.0 |
HIP 28556 |
10.64 |
| 2026-10-07 00:00 |
06:02:21.66 |
+16:52:46.9 |
HIP 28556 |
10.55 |
| 2026-10-07 12:00 |
06:02:21.16 |
+16:52:43.8 |
HIP 28556 |
10.45 |
| 2026-10-08 00:00 |
06:02:20.64 |
+16:52:40.7 |
HIP 28556 |
10.35 |
| 2026-10-08 12:00 |
06:02:20.10 |
+16:52:37.6 |
HIP 28556 |
10.24 |
| 2026-10-09 00:00 |
06:02:19.54 |
+16:52:34.5 |
HIP 28556 |
10.14 |
| 2026-10-09 12:00 |
06:02:18.96 |
+16:52:31.4 |
HIP 28556 |
10.02 |
| 2026-10-10 00:00 |
06:02:18.36 |
+16:52:28.4 |
HIP 28556 |
9.91 |
| 2026-10-10 12:00 |
06:02:17.75 |
+16:52:25.3 |
HIP 28556 |
9.79 |
| 2026-10-11 00:00 |
06:02:17.11 |
+16:52:22.3 |
HIP 28556 |
9.67 |