메타데이터
| 항목 |
값 |
| Designation |
C/1952 Q1 (Harrington) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1953-01-05T10:10:01.139520Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:10Z |
| Obs used |
5 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1952-11-27.0000000 |
| e |
0.99595292 |
| q (au) |
1.664987 |
| a (au) |
411.404751 |
| i (deg) |
59.116673 |
| Ω (om, deg) |
221.391261 |
| ω (w, deg) |
191.629595 |
| M (ma, deg) |
359.995344 |
밝기
산란 + 전체 선형
$$
M_a = (6.130 + 3.003\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.130 |
| n |
3.003 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 1952-10-10 |
1952-12-20 |
+24.3360 |
-5.080 |
| 1953-01-05 |
1953-05-08 |
+0.2446 |
-1.035 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-09-25 00:00 |
14:26:20.68 |
-16:46:53.7 |
HIP 70554 |
29.48 |
| 2026-09-25 12:00 |
14:26:21.69 |
-16:46:57.9 |
HIP 70554 |
29.60 |
| 2026-09-26 00:00 |
14:26:22.71 |
-16:47:02.0 |
HIP 70554 |
29.72 |
| 2026-09-26 12:00 |
14:26:23.74 |
-16:47:06.2 |
HIP 70554 |
29.84 |
| 2026-09-27 00:00 |
14:26:24.77 |
-16:47:10.5 |
HIP 70554 |
29.96 |
| 2026-09-27 12:00 |
14:26:25.81 |
-16:47:14.7 |
HIP 70554 |
30.08 |
| 2026-09-28 00:00 |
14:26:26.85 |
-16:47:19.0 |
HIP 70554 |
30.21 |
| 2026-09-28 12:00 |
14:26:27.90 |
-16:47:23.4 |
HIP 70554 |
30.34 |
| 2026-09-29 00:00 |
14:26:28.96 |
-16:47:27.7 |
HIP 70554 |
30.47 |
| 2026-09-29 12:00 |
14:26:30.02 |
-16:47:32.1 |
HIP 70554 |
30.61 |
| 2026-09-30 00:00 |
14:26:31.08 |
-16:47:36.6 |
HIP 70554 |
30.75 |
| 2026-09-30 12:00 |
14:26:32.16 |
-16:47:41.0 |
HIP 70554 |
30.89 |
| 2026-10-01 00:00 |
14:26:33.24 |
-16:47:45.5 |
HIP 70554 |
31.03 |
| 2026-10-01 12:00 |
14:26:34.32 |
-16:47:50.1 |
HIP 70554 |
31.18 |
| 2026-10-02 00:00 |
14:26:35.41 |
-16:47:54.6 |
HIP 70554 |
31.33 |
| 2026-10-02 12:00 |
14:26:36.50 |
-16:47:59.2 |
HIP 70554 |
31.48 |
| 2026-10-03 00:00 |
14:26:37.60 |
-16:48:03.8 |
HIP 70795 |
31.25 |
| 2026-10-03 12:00 |
14:26:38.71 |
-16:48:08.5 |
HIP 70795 |
30.98 |
| 2026-10-04 00:00 |
14:26:39.82 |
-16:48:13.2 |
HIP 70795 |
30.70 |
| 2026-10-04 12:00 |
14:26:40.93 |
-16:48:17.9 |
HIP 70795 |
30.42 |
| 2026-10-05 00:00 |
14:26:42.05 |
-16:48:22.6 |
HIP 70795 |
30.14 |
| 2026-10-05 12:00 |
14:26:43.18 |
-16:48:27.4 |
HIP 70795 |
29.86 |
| 2026-10-06 00:00 |
14:26:44.30 |
-16:48:32.2 |
HIP 70795 |
29.58 |
| 2026-10-06 12:00 |
14:26:45.44 |
-16:48:37.0 |
HIP 70795 |
29.30 |
| 2026-10-07 00:00 |
14:26:46.58 |
-16:48:41.9 |
HIP 70795 |
29.01 |
| 2026-10-07 12:00 |
14:26:47.72 |
-16:48:46.8 |
HIP 70795 |
28.73 |
| 2026-10-08 00:00 |
14:26:48.87 |
-16:48:51.7 |
HIP 70795 |
28.44 |
| 2026-10-08 12:00 |
14:26:50.02 |
-16:48:56.6 |
HIP 70795 |
28.15 |
| 2026-10-09 00:00 |
14:26:51.18 |
-16:49:01.6 |
HIP 70795 |
27.86 |
| 2026-10-09 12:00 |
14:26:52.34 |
-16:49:06.6 |
HIP 70795 |
27.57 |
| 2026-10-10 00:00 |
14:26:53.50 |
-16:49:11.6 |
HIP 70795 |
27.28 |
| 2026-10-10 12:00 |
14:26:54.67 |
-16:49:16.6 |
HIP 70795 |
26.99 |
| 2026-10-11 00:00 |
14:26:55.85 |
-16:49:21.7 |
HIP 70795 |
26.70 |
| 2026-10-11 12:00 |
14:26:57.02 |
-16:49:26.8 |
HIP 70795 |
26.40 |
| 2026-10-12 00:00 |
14:26:58.20 |
-16:49:31.9 |
HIP 70795 |
26.11 |
| 2026-10-12 12:00 |
14:26:59.39 |
-16:49:37.0 |
HIP 70795 |
25.81 |
| 2026-10-13 00:00 |
14:27:00.58 |
-16:49:42.2 |
HIP 70795 |
25.52 |
| 2026-10-13 12:00 |
14:27:01.77 |
-16:49:47.4 |
HIP 70795 |
25.22 |
| 2026-10-14 00:00 |
14:27:02.96 |
-16:49:52.6 |
HIP 70795 |
24.92 |
| 2026-10-14 12:00 |
14:27:04.16 |
-16:49:57.8 |
HIP 70795 |
24.62 |
| 2026-10-15 00:00 |
14:27:05.36 |
-16:50:03.0 |
HIP 70795 |
24.32 |
| 2026-10-15 12:00 |
14:27:06.57 |
-16:50:08.3 |
HIP 70795 |
24.02 |
| 2026-10-16 00:00 |
14:27:07.78 |
-16:50:13.6 |
HIP 70795 |
23.72 |