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) |
| 2026-07-29 00:00 |
12:35:17.58 |
-58:42:59.7 |
HIP 61365 |
23.94 |
| 2026-07-29 12:00 |
12:35:18.36 |
-58:42:50.2 |
HIP 61365 |
23.82 |
| 2026-07-30 00:00 |
12:35:19.15 |
-58:42:40.8 |
HIP 61365 |
23.69 |
| 2026-07-30 12:00 |
12:35:19.96 |
-58:42:31.5 |
HIP 61365 |
23.57 |
| 2026-07-31 00:00 |
12:35:20.78 |
-58:42:22.3 |
HIP 61365 |
23.46 |
| 2026-07-31 12:00 |
12:35:21.61 |
-58:42:13.1 |
HIP 61365 |
23.34 |
| 2026-08-01 00:00 |
12:35:22.46 |
-58:42:04.0 |
HIP 61365 |
23.23 |
| 2026-08-01 12:00 |
12:35:23.31 |
-58:41:55.0 |
HIP 61365 |
23.12 |
| 2026-08-02 00:00 |
12:35:24.19 |
-58:41:46.0 |
HIP 61365 |
23.01 |
| 2026-08-02 12:00 |
12:35:25.07 |
-58:41:37.2 |
HIP 61365 |
22.91 |
| 2026-08-03 00:00 |
12:35:25.96 |
-58:41:28.4 |
HIP 61365 |
22.81 |
| 2026-08-03 12:00 |
12:35:26.87 |
-58:41:19.7 |
HIP 61365 |
22.71 |
| 2026-08-04 00:00 |
12:35:27.80 |
-58:41:11.0 |
HIP 61365 |
22.61 |
| 2026-08-04 12:00 |
12:35:28.73 |
-58:41:02.5 |
HIP 61365 |
22.52 |
| 2026-08-05 00:00 |
12:35:29.68 |
-58:40:54.0 |
HIP 61365 |
22.43 |
| 2026-08-05 12:00 |
12:35:30.64 |
-58:40:45.6 |
HIP 61365 |
22.34 |
| 2026-08-06 00:00 |
12:35:31.61 |
-58:40:37.3 |
HIP 61365 |
22.26 |
| 2026-08-06 12:00 |
12:35:32.59 |
-58:40:29.0 |
HIP 61365 |
22.18 |
| 2026-08-07 00:00 |
12:35:33.59 |
-58:40:20.9 |
HIP 61365 |
22.10 |
| 2026-08-07 12:00 |
12:35:34.60 |
-58:40:12.8 |
HIP 61365 |
22.03 |
| 2026-08-08 00:00 |
12:35:35.62 |
-58:40:04.8 |
HIP 61365 |
21.96 |
| 2026-08-08 12:00 |
12:35:36.65 |
-58:39:56.9 |
HIP 61365 |
21.89 |
| 2026-08-09 00:00 |
12:35:37.69 |
-58:39:49.1 |
HIP 61365 |
21.82 |
| 2026-08-09 12:00 |
12:35:38.75 |
-58:39:41.4 |
HIP 61365 |
21.76 |
| 2026-08-10 00:00 |
12:35:39.82 |
-58:39:33.7 |
HIP 61365 |
21.71 |
| 2026-08-10 12:00 |
12:35:40.90 |
-58:39:26.2 |
HIP 61365 |
21.65 |
| 2026-08-11 00:00 |
12:35:41.99 |
-58:39:18.7 |
HIP 61365 |
21.60 |
| 2026-08-11 12:00 |
12:35:43.09 |
-58:39:11.3 |
HIP 61365 |
21.55 |
| 2026-08-12 00:00 |
12:35:44.21 |
-58:39:04.0 |
HIP 61365 |
21.51 |
| 2026-08-12 12:00 |
12:35:45.34 |
-58:38:56.8 |
HIP 61365 |
21.47 |
| 2026-08-13 00:00 |
12:35:46.47 |
-58:38:49.7 |
HIP 61365 |
21.44 |
| 2026-08-13 12:00 |
12:35:47.62 |
-58:38:42.7 |
HIP 61365 |
21.40 |
| 2026-08-14 00:00 |
12:35:48.78 |
-58:38:35.8 |
HIP 61365 |
21.37 |
| 2026-08-14 12:00 |
12:35:49.95 |
-58:38:28.9 |
HIP 61365 |
21.35 |
| 2026-08-15 00:00 |
12:35:51.14 |
-58:38:22.2 |
HIP 61365 |
21.33 |
| 2026-08-15 12:00 |
12:35:52.33 |
-58:38:15.5 |
HIP 61365 |
21.31 |
| 2026-08-16 00:00 |
12:35:53.54 |
-58:38:09.0 |
HIP 61365 |
21.30 |
| 2026-08-16 12:00 |
12:35:54.75 |
-58:38:02.5 |
HIP 61365 |
21.29 |
| 2026-08-17 00:00 |
12:35:55.98 |
-58:37:56.1 |
HIP 61365 |
21.28 |
| 2026-08-17 12:00 |
12:35:57.21 |
-58:37:49.8 |
HIP 61365 |
21.28 |
| 2026-08-18 00:00 |
12:35:58.46 |
-58:37:43.6 |
HIP 61365 |
21.28 |
| 2026-08-18 12:00 |
12:35:59.72 |
-58:37:37.5 |
HIP 61365 |
21.28 |
| 2026-08-19 00:00 |
12:36:00.98 |
-58:37:31.5 |
HIP 61365 |
21.29 |