메타데이터
| 항목 |
값 |
| Designation |
C/1954 M2 (Kresak-Peltier) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1954-08-29T16:00:13.749120Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:12Z |
| Obs used |
10 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1954-08-03.0000000 |
| e |
1.00022617 |
| q (au) |
0.746369 |
| a (au) |
-3300.044138 |
| i (deg) |
88.539550 |
| Ω (om, deg) |
75.566452 |
| ω (w, deg) |
254.728144 |
| M (ma, deg) |
-0.000139 |
밝기
산란 + 전체 선형
$$
M_a = (7.972 + 3.248\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.972 |
| n |
3.248 |
| gf |
1.000 |
| gb |
-0.500 |
| k |
1.000 |
| 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) |
| 2026-09-20 00:00 |
01:24:11.98 |
+85:26:39.0 |
HIP 6325 |
19.08 |
| 2026-09-20 12:00 |
01:23:58.88 |
+85:26:45.2 |
HIP 6325 |
19.14 |
| 2026-09-21 00:00 |
01:23:45.71 |
+85:26:51.2 |
HIP 6325 |
19.19 |
| 2026-09-21 12:00 |
01:23:32.49 |
+85:26:57.0 |
HIP 6325 |
19.24 |
| 2026-09-22 00:00 |
01:23:19.20 |
+85:27:02.7 |
HIP 6325 |
19.30 |
| 2026-09-22 12:00 |
01:23:05.86 |
+85:27:08.2 |
HIP 6325 |
19.35 |
| 2026-09-23 00:00 |
01:22:52.46 |
+85:27:13.6 |
HIP 6325 |
19.41 |
| 2026-09-23 12:00 |
01:22:39.00 |
+85:27:18.8 |
HIP 6325 |
19.47 |
| 2026-09-24 00:00 |
01:22:25.49 |
+85:27:23.8 |
HIP 6325 |
19.53 |
| 2026-09-24 12:00 |
01:22:11.92 |
+85:27:28.7 |
HIP 6325 |
19.59 |
| 2026-09-25 00:00 |
01:21:58.30 |
+85:27:33.4 |
HIP 6325 |
19.65 |
| 2026-09-25 12:00 |
01:21:44.63 |
+85:27:38.0 |
HIP 6325 |
19.72 |
| 2026-09-26 00:00 |
01:21:30.91 |
+85:27:42.4 |
HIP 6325 |
19.78 |
| 2026-09-26 12:00 |
01:21:17.15 |
+85:27:46.6 |
HIP 6325 |
19.85 |
| 2026-09-27 00:00 |
01:21:03.33 |
+85:27:50.7 |
HIP 6325 |
19.92 |
| 2026-09-27 12:00 |
01:20:49.47 |
+85:27:54.6 |
HIP 6325 |
19.99 |
| 2026-09-28 00:00 |
01:20:35.56 |
+85:27:58.3 |
HIP 6325 |
20.06 |
| 2026-09-28 12:00 |
01:20:21.61 |
+85:28:01.9 |
HIP 6325 |
20.13 |
| 2026-09-29 00:00 |
01:20:07.62 |
+85:28:05.3 |
HIP 6325 |
20.20 |
| 2026-09-29 12:00 |
01:19:53.59 |
+85:28:08.5 |
HIP 6325 |
20.28 |
| 2026-09-30 00:00 |
01:19:39.52 |
+85:28:11.6 |
HIP 6325 |
20.35 |
| 2026-09-30 12:00 |
01:19:25.41 |
+85:28:14.5 |
HIP 6325 |
20.43 |
| 2026-10-01 00:00 |
01:19:11.26 |
+85:28:17.2 |
HIP 6325 |
20.51 |
| 2026-10-01 12:00 |
01:18:57.08 |
+85:28:19.8 |
HIP 6325 |
20.59 |
| 2026-10-02 00:00 |
01:18:42.87 |
+85:28:22.2 |
HIP 6325 |
20.67 |
| 2026-10-02 12:00 |
01:18:28.62 |
+85:28:24.4 |
HIP 6325 |
20.75 |
| 2026-10-03 00:00 |
01:18:14.34 |
+85:28:26.5 |
HIP 6325 |
20.83 |
| 2026-10-03 12:00 |
01:18:00.03 |
+85:28:28.4 |
HIP 6325 |
20.92 |
| 2026-10-04 00:00 |
01:17:45.69 |
+85:28:30.1 |
HIP 6325 |
21.00 |
| 2026-10-04 12:00 |
01:17:31.32 |
+85:28:31.6 |
HIP 6325 |
21.09 |
| 2026-10-05 00:00 |
01:17:16.93 |
+85:28:33.0 |
HIP 6325 |
21.17 |
| 2026-10-05 12:00 |
01:17:02.52 |
+85:28:34.2 |
HIP 6325 |
21.26 |
| 2026-10-06 00:00 |
01:16:48.08 |
+85:28:35.2 |
HIP 6325 |
21.35 |
| 2026-10-06 12:00 |
01:16:33.62 |
+85:28:36.0 |
HIP 6325 |
21.44 |
| 2026-10-07 00:00 |
01:16:19.14 |
+85:28:36.7 |
HIP 6325 |
21.53 |
| 2026-10-07 12:00 |
01:16:04.65 |
+85:28:37.2 |
HIP 6325 |
21.63 |
| 2026-10-08 00:00 |
01:15:50.13 |
+85:28:37.6 |
HIP 6325 |
21.72 |
| 2026-10-08 12:00 |
01:15:35.60 |
+85:28:37.7 |
HIP 6325 |
21.81 |
| 2026-10-09 00:00 |
01:15:21.06 |
+85:28:37.7 |
HIP 6325 |
21.91 |
| 2026-10-09 12:00 |
01:15:06.51 |
+85:28:37.5 |
HIP 6325 |
22.01 |
| 2026-10-10 00:00 |
01:14:51.95 |
+85:28:37.1 |
HIP 6325 |
22.10 |
| 2026-10-10 12:00 |
01:14:37.38 |
+85:28:36.6 |
HIP 6325 |
22.20 |
| 2026-10-11 00:00 |
01:14:22.80 |
+85:28:35.9 |
HIP 6325 |
22.30 |