메타데이터
| 항목 |
값 |
| Designation |
C/1953 T1 (Abell) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1954-07-07T08:24:47.105280Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:12Z |
| Obs used |
39 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1954-03-29.0000000 |
| e |
1.00081195 |
| q (au) |
0.970185 |
| a (au) |
-1194.882510 |
| i (deg) |
53.228291 |
| Ω (om, deg) |
3.030697 |
| ω (w, deg) |
194.382085 |
| M (ma, deg) |
-0.002395 |
밝기
산란 + 전체 선형
$$
M_a = (5.346 + 3.354\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
5.346 |
| n |
3.354 |
| gf |
0.831 |
| gb |
-0.664 |
| 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) |
| 2026-07-29 00:00 |
00:15:38.96 |
+04:02:30.1 |
HIP 1272 |
13.37 |
| 2026-07-29 12:00 |
00:15:38.38 |
+04:02:27.2 |
HIP 1272 |
13.47 |
| 2026-07-30 00:00 |
00:15:37.79 |
+04:02:24.3 |
HIP 1272 |
13.57 |
| 2026-07-30 12:00 |
00:15:37.19 |
+04:02:21.2 |
HIP 1272 |
13.67 |
| 2026-07-31 00:00 |
00:15:36.59 |
+04:02:18.2 |
HIP 1272 |
13.77 |
| 2026-07-31 12:00 |
00:15:35.97 |
+04:02:15.0 |
HIP 1272 |
13.88 |
| 2026-08-01 00:00 |
00:15:35.35 |
+04:02:11.9 |
HIP 1272 |
13.99 |
| 2026-08-01 12:00 |
00:15:34.72 |
+04:02:08.6 |
HIP 1272 |
14.10 |
| 2026-08-02 00:00 |
00:15:34.08 |
+04:02:05.3 |
HIP 1272 |
14.21 |
| 2026-08-02 12:00 |
00:15:33.44 |
+04:02:02.0 |
HIP 1272 |
14.33 |
| 2026-08-03 00:00 |
00:15:32.78 |
+04:01:58.6 |
HIP 1272 |
14.45 |
| 2026-08-03 12:00 |
00:15:32.12 |
+04:01:55.2 |
HIP 1272 |
14.57 |
| 2026-08-04 00:00 |
00:15:31.46 |
+04:01:51.7 |
HIP 1272 |
14.70 |
| 2026-08-04 12:00 |
00:15:30.78 |
+04:01:48.1 |
HIP 1272 |
14.82 |
| 2026-08-05 00:00 |
00:15:30.10 |
+04:01:44.5 |
HIP 1272 |
14.95 |
| 2026-08-05 12:00 |
00:15:29.41 |
+04:01:40.8 |
HIP 1272 |
15.09 |
| 2026-08-06 00:00 |
00:15:28.71 |
+04:01:37.1 |
HIP 1272 |
15.22 |
| 2026-08-06 12:00 |
00:15:28.00 |
+04:01:33.4 |
HIP 1272 |
15.36 |
| 2026-08-07 00:00 |
00:15:27.29 |
+04:01:29.6 |
HIP 1272 |
15.50 |
| 2026-08-07 12:00 |
00:15:26.57 |
+04:01:25.7 |
HIP 1272 |
15.64 |
| 2026-08-08 00:00 |
00:15:25.84 |
+04:01:21.8 |
HIP 1272 |
15.79 |
| 2026-08-08 12:00 |
00:15:25.10 |
+04:01:17.8 |
HIP 1272 |
15.94 |
| 2026-08-09 00:00 |
00:15:24.36 |
+04:01:13.8 |
HIP 1272 |
16.09 |
| 2026-08-09 12:00 |
00:15:23.61 |
+04:01:09.7 |
HIP 1272 |
16.25 |
| 2026-08-10 00:00 |
00:15:22.86 |
+04:01:05.6 |
HIP 1272 |
16.40 |
| 2026-08-10 12:00 |
00:15:22.09 |
+04:01:01.4 |
HIP 1272 |
16.56 |
| 2026-08-11 00:00 |
00:15:21.32 |
+04:00:57.2 |
HIP 1272 |
16.72 |
| 2026-08-11 12:00 |
00:15:20.55 |
+04:00:53.0 |
HIP 1272 |
16.89 |
| 2026-08-12 00:00 |
00:15:19.76 |
+04:00:48.6 |
HIP 1272 |
17.05 |
| 2026-08-12 12:00 |
00:15:18.97 |
+04:00:44.3 |
HIP 1272 |
17.22 |
| 2026-08-13 00:00 |
00:15:18.17 |
+04:00:39.9 |
HIP 1272 |
17.40 |
| 2026-08-13 12:00 |
00:15:17.37 |
+04:00:35.4 |
HIP 1272 |
17.57 |
| 2026-08-14 00:00 |
00:15:16.56 |
+04:00:30.9 |
HIP 1272 |
17.75 |
| 2026-08-14 12:00 |
00:15:15.74 |
+04:00:26.3 |
HIP 1272 |
17.93 |
| 2026-08-15 00:00 |
00:15:14.91 |
+04:00:21.7 |
HIP 1272 |
18.11 |
| 2026-08-15 12:00 |
00:15:14.08 |
+04:00:17.1 |
HIP 1272 |
18.29 |
| 2026-08-16 00:00 |
00:15:13.25 |
+04:00:12.4 |
HIP 1272 |
18.48 |
| 2026-08-16 12:00 |
00:15:12.40 |
+04:00:07.7 |
HIP 1272 |
18.67 |
| 2026-08-17 00:00 |
00:15:11.55 |
+04:00:02.9 |
HIP 1272 |
18.86 |
| 2026-08-17 12:00 |
00:15:10.70 |
+03:59:58.0 |
HIP 1272 |
19.05 |
| 2026-08-18 00:00 |
00:15:09.84 |
+03:59:53.2 |
HIP 1272 |
19.25 |
| 2026-08-18 12:00 |
00:15:08.97 |
+03:59:48.3 |
HIP 1272 |
19.45 |
| 2026-08-19 00:00 |
00:15:08.09 |
+03:59:43.3 |
HIP 1272 |
19.65 |