메타데이터
| 항목 |
값 |
| Designation |
C/1996 R1 (Hergenrother-Spahr) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1996-08-28T17:45:00.472320Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:49Z |
| Obs used |
321 |
| NEO |
- |
| M1 |
6.300 |
| K1 |
24.250 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1996-09-28.0000000 |
| e |
0.98558370 |
| q (au) |
1.899198 |
| a (au) |
131.739702 |
| i (deg) |
145.814443 |
| Ω (om, deg) |
149.745053 |
| ω (w, deg) |
139.456909 |
| M (ma, deg) |
0.019724 |
밝기
산란 + 전체 선형
$$
M_a = (8.178 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
8.178 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-1.000 |
| k |
0.991 |
| δ90 |
9.999 |
| 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 |
12:42:34.99 |
-36:10:50.2 |
HIP 62064 |
12.78 |
| 2026-09-20 12:00 |
12:42:37.48 |
-36:10:56.2 |
HIP 62064 |
12.57 |
| 2026-09-21 00:00 |
12:42:39.97 |
-36:11:02.4 |
HIP 62064 |
12.37 |
| 2026-09-21 12:00 |
12:42:42.46 |
-36:11:08.8 |
HIP 62064 |
12.19 |
| 2026-09-22 00:00 |
12:42:44.96 |
-36:11:15.3 |
HIP 62064 |
12.04 |
| 2026-09-22 12:00 |
12:42:47.46 |
-36:11:22.0 |
HIP 62064 |
11.91 |
| 2026-09-23 00:00 |
12:42:49.97 |
-36:11:28.8 |
HIP 62064 |
11.80 |
| 2026-09-23 12:00 |
12:42:52.48 |
-36:11:35.9 |
HIP 62064 |
11.71 |
| 2026-09-24 00:00 |
12:42:54.99 |
-36:11:43.1 |
HIP 62064 |
11.65 |
| 2026-09-24 12:00 |
12:42:57.51 |
-36:11:50.4 |
HIP 62064 |
11.62 |
| 2026-09-25 00:00 |
12:43:00.04 |
-36:11:58.0 |
HIP 62064 |
11.61 |
| 2026-09-25 12:00 |
12:43:02.56 |
-36:12:05.7 |
HIP 62064 |
11.63 |
| 2026-09-26 00:00 |
12:43:05.09 |
-36:12:13.5 |
HIP 62064 |
11.68 |
| 2026-09-26 12:00 |
12:43:07.63 |
-36:12:21.5 |
HIP 62064 |
11.75 |
| 2026-09-27 00:00 |
12:43:10.17 |
-36:12:29.7 |
HIP 62064 |
11.85 |
| 2026-09-27 12:00 |
12:43:12.71 |
-36:12:38.1 |
HIP 62064 |
11.97 |
| 2026-09-28 00:00 |
12:43:15.25 |
-36:12:46.6 |
HIP 62128 |
11.97 |
| 2026-09-28 12:00 |
12:43:17.79 |
-36:12:55.2 |
HIP 62128 |
11.50 |
| 2026-09-29 00:00 |
12:43:20.34 |
-36:13:04.1 |
HIP 62128 |
11.03 |
| 2026-09-29 12:00 |
12:43:22.89 |
-36:13:13.1 |
HIP 62128 |
10.57 |
| 2026-09-30 00:00 |
12:43:25.44 |
-36:13:22.2 |
HIP 62128 |
10.11 |
| 2026-09-30 12:00 |
12:43:28.00 |
-36:13:31.5 |
HIP 62128 |
9.66 |
| 2026-10-01 00:00 |
12:43:30.55 |
-36:13:41.0 |
HIP 62128 |
9.21 |
| 2026-10-01 12:00 |
12:43:33.11 |
-36:13:50.6 |
HIP 62128 |
8.77 |
| 2026-10-02 00:00 |
12:43:35.67 |
-36:14:00.4 |
HIP 62128 |
8.35 |
| 2026-10-02 12:00 |
12:43:38.23 |
-36:14:10.4 |
HIP 62128 |
7.93 |
| 2026-10-03 00:00 |
12:43:40.79 |
-36:14:20.5 |
HIP 62128 |
7.52 |
| 2026-10-03 12:00 |
12:43:43.35 |
-36:14:30.7 |
HIP 62128 |
7.14 |
| 2026-10-04 00:00 |
12:43:45.92 |
-36:14:41.1 |
HIP 62128 |
6.77 |
| 2026-10-04 12:00 |
12:43:48.48 |
-36:14:51.7 |
HIP 62128 |
6.42 |
| 2026-10-05 00:00 |
12:43:51.04 |
-36:15:02.4 |
HIP 62128 |
6.10 |
| 2026-10-05 12:00 |
12:43:53.61 |
-36:15:13.3 |
HIP 62128 |
5.82 |
| 2026-10-06 00:00 |
12:43:56.17 |
-36:15:24.3 |
HIP 62128 |
5.57 |
| 2026-10-06 12:00 |
12:43:58.73 |
-36:15:35.5 |
HIP 62128 |
5.36 |
| 2026-10-07 00:00 |
12:44:01.30 |
-36:15:46.8 |
HIP 62128 |
5.19 |
| 2026-10-07 12:00 |
12:44:03.86 |
-36:15:58.3 |
HIP 62128 |
5.09 |
| 2026-10-08 00:00 |
12:44:06.42 |
-36:16:09.9 |
HIP 62128 |
5.03 |
| 2026-10-08 12:00 |
12:44:08.99 |
-36:16:21.7 |
HIP 62128 |
5.04 |
| 2026-10-09 00:00 |
12:44:11.55 |
-36:16:33.6 |
HIP 62128 |
5.10 |
| 2026-10-09 12:00 |
12:44:14.10 |
-36:16:45.7 |
HIP 62128 |
5.22 |
| 2026-10-10 00:00 |
12:44:16.66 |
-36:16:57.9 |
HIP 62128 |
5.39 |
| 2026-10-10 12:00 |
12:44:19.22 |
-36:17:10.3 |
HIP 62128 |
5.60 |
| 2026-10-11 00:00 |
12:44:21.77 |
-36:17:22.8 |
HIP 62128 |
5.86 |