메타데이터
| 항목 |
값 |
| Designation |
C/1924 R1 (Finsler) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1924-09-04T19:45:38.554560Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:02Z |
| Obs used |
8 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1924-09-28.0000000 |
| e |
0.99853004 |
| q (au) |
0.405911 |
| a (au) |
276.136968 |
| i (deg) |
120.113818 |
| Ω (om, deg) |
81.148388 |
| ω (w, deg) |
66.501893 |
| M (ma, deg) |
0.004978 |
밝기
산란 + 전체 선형
$$
M_a = (H_0 + n\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
- |
| n |
- |
| gf |
- |
| gb |
- |
| k |
- |
| δ90 |
- |
| 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 |
12:37:39.04 |
-58:34:38.3 |
HIP 61365 |
28.82 |
| 2026-09-20 12:00 |
12:37:40.76 |
-58:34:39.0 |
HIP 61365 |
29.02 |
| 2026-09-21 00:00 |
12:37:42.49 |
-58:34:39.9 |
HIP 61365 |
29.22 |
| 2026-09-21 12:00 |
12:37:44.22 |
-58:34:40.8 |
HIP 61613 |
29.39 |
| 2026-09-22 00:00 |
12:37:45.95 |
-58:34:41.9 |
HIP 61613 |
29.42 |
| 2026-09-22 12:00 |
12:37:47.68 |
-58:34:43.1 |
HIP 61613 |
29.45 |
| 2026-09-23 00:00 |
12:37:49.42 |
-58:34:44.4 |
HIP 61613 |
29.49 |
| 2026-09-23 12:00 |
12:37:51.16 |
-58:34:45.7 |
HIP 61613 |
29.53 |
| 2026-09-24 00:00 |
12:37:52.90 |
-58:34:47.2 |
HIP 61613 |
29.57 |
| 2026-09-24 12:00 |
12:37:54.64 |
-58:34:48.8 |
HIP 61613 |
29.62 |
| 2026-09-25 00:00 |
12:37:56.39 |
-58:34:50.5 |
HIP 61613 |
29.67 |
| 2026-09-25 12:00 |
12:37:58.14 |
-58:34:52.4 |
HIP 61613 |
29.72 |
| 2026-09-26 00:00 |
12:37:59.89 |
-58:34:54.3 |
HIP 61906 |
29.61 |
| 2026-09-26 12:00 |
12:38:01.64 |
-58:34:56.3 |
HIP 61906 |
29.44 |
| 2026-09-27 00:00 |
12:38:03.40 |
-58:34:58.4 |
HIP 61906 |
29.26 |
| 2026-09-27 12:00 |
12:38:05.15 |
-58:35:00.7 |
HIP 61906 |
29.09 |
| 2026-09-28 00:00 |
12:38:06.91 |
-58:35:03.0 |
HIP 61906 |
28.92 |
| 2026-09-28 12:00 |
12:38:08.67 |
-58:35:05.5 |
HIP 61906 |
28.75 |
| 2026-09-29 00:00 |
12:38:10.43 |
-58:35:08.0 |
HIP 61906 |
28.59 |
| 2026-09-29 12:00 |
12:38:12.19 |
-58:35:10.7 |
HIP 61906 |
28.42 |
| 2026-09-30 00:00 |
12:38:13.96 |
-58:35:13.4 |
HIP 61906 |
28.26 |
| 2026-09-30 12:00 |
12:38:15.72 |
-58:35:16.3 |
HIP 61906 |
28.10 |
| 2026-10-01 00:00 |
12:38:17.49 |
-58:35:19.3 |
HIP 61906 |
27.94 |
| 2026-10-01 12:00 |
12:38:19.25 |
-58:35:22.4 |
HIP 61906 |
27.78 |
| 2026-10-02 00:00 |
12:38:21.02 |
-58:35:25.6 |
HIP 61906 |
27.63 |
| 2026-10-02 12:00 |
12:38:22.79 |
-58:35:28.9 |
HIP 61906 |
27.47 |
| 2026-10-03 00:00 |
12:38:24.55 |
-58:35:32.3 |
HIP 61906 |
27.32 |
| 2026-10-03 12:00 |
12:38:26.32 |
-58:35:35.8 |
HIP 61906 |
27.17 |
| 2026-10-04 00:00 |
12:38:28.09 |
-58:35:39.4 |
HIP 61906 |
27.03 |
| 2026-10-04 12:00 |
12:38:29.86 |
-58:35:43.1 |
HIP 61906 |
26.89 |
| 2026-10-05 00:00 |
12:38:31.63 |
-58:35:46.9 |
HIP 61906 |
26.74 |
| 2026-10-05 12:00 |
12:38:33.40 |
-58:35:50.8 |
HIP 61906 |
26.61 |
| 2026-10-06 00:00 |
12:38:35.16 |
-58:35:54.9 |
HIP 61906 |
26.47 |
| 2026-10-06 12:00 |
12:38:36.93 |
-58:35:59.0 |
HIP 61906 |
26.34 |
| 2026-10-07 00:00 |
12:38:38.70 |
-58:36:03.2 |
HIP 61906 |
26.21 |
| 2026-10-07 12:00 |
12:38:40.46 |
-58:36:07.6 |
HIP 61906 |
26.08 |
| 2026-10-08 00:00 |
12:38:42.23 |
-58:36:12.0 |
HIP 61906 |
25.95 |
| 2026-10-08 12:00 |
12:38:44.00 |
-58:36:16.5 |
HIP 61906 |
25.83 |
| 2026-10-09 00:00 |
12:38:45.76 |
-58:36:21.2 |
HIP 61906 |
25.71 |
| 2026-10-09 12:00 |
12:38:47.52 |
-58:36:25.9 |
HIP 61906 |
25.60 |
| 2026-10-10 00:00 |
12:38:49.28 |
-58:36:30.8 |
HIP 61906 |
25.48 |
| 2026-10-10 12:00 |
12:38:51.04 |
-58:36:35.7 |
HIP 61906 |
25.37 |
| 2026-10-11 00:00 |
12:38:52.80 |
-58:36:40.8 |
HIP 61906 |
25.27 |