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 |
-0.998 |
| 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) |
| 2026-03-26 00:00 |
14:29:04.67 |
-17:04:28.9 |
HIP 70801 |
4.42 |
| 2026-03-26 12:00 |
14:29:03.65 |
-17:04:24.1 |
HIP 70801 |
4.18 |
| 2026-03-27 00:00 |
14:29:02.63 |
-17:04:19.4 |
HIP 70801 |
3.94 |
| 2026-03-27 12:00 |
14:29:01.60 |
-17:04:14.6 |
HIP 70801 |
3.70 |
| 2026-03-28 00:00 |
14:29:00.56 |
-17:04:09.7 |
HIP 70801 |
3.46 |
| 2026-03-28 12:00 |
14:28:59.52 |
-17:04:04.8 |
HIP 70801 |
3.22 |
| 2026-03-29 00:00 |
14:28:58.48 |
-17:04:00.0 |
HIP 70801 |
2.99 |
| 2026-03-29 12:00 |
14:28:57.42 |
-17:03:55.0 |
HIP 70801 |
2.76 |
| 2026-03-30 00:00 |
14:28:56.37 |
-17:03:50.0 |
HIP 70801 |
2.54 |
| 2026-03-30 12:00 |
14:28:55.30 |
-17:03:45.0 |
HIP 70801 |
2.32 |
| 2026-03-31 00:00 |
14:28:54.23 |
-17:03:39.9 |
HIP 70801 |
2.12 |
| 2026-03-31 12:00 |
14:28:53.16 |
-17:03:34.9 |
HIP 70801 |
1.93 |
| 2026-04-01 00:00 |
14:28:52.08 |
-17:03:29.8 |
HIP 70801 |
1.76 |
| 2026-04-01 12:00 |
14:28:51.00 |
-17:03:24.6 |
HIP 70801 |
1.61 |
| 2026-04-02 00:00 |
14:28:49.91 |
-17:03:19.4 |
HIP 70801 |
1.51 |
| 2026-04-02 12:00 |
14:28:48.81 |
-17:03:14.2 |
HIP 70801 |
1.44 |
| 2026-04-03 00:00 |
14:28:47.71 |
-17:03:09.0 |
HIP 70801 |
1.43 |
| 2026-04-03 12:00 |
14:28:46.61 |
-17:03:03.7 |
HIP 70801 |
1.48 |
| 2026-04-04 00:00 |
14:28:45.50 |
-17:02:58.5 |
HIP 70801 |
1.57 |
| 2026-04-04 12:00 |
14:28:44.38 |
-17:02:53.1 |
HIP 70801 |
1.71 |
| 2026-04-05 00:00 |
14:28:43.26 |
-17:02:47.8 |
HIP 70801 |
1.87 |
| 2026-04-05 12:00 |
14:28:42.14 |
-17:02:42.4 |
HIP 70801 |
2.07 |
| 2026-04-06 00:00 |
14:28:41.01 |
-17:02:37.0 |
HIP 70801 |
2.28 |
| 2026-04-06 12:00 |
14:28:39.88 |
-17:02:31.6 |
HIP 70801 |
2.51 |
| 2026-04-07 00:00 |
14:28:38.74 |
-17:02:26.1 |
HIP 70801 |
2.75 |
| 2026-04-07 12:00 |
14:28:37.60 |
-17:02:20.6 |
HIP 70801 |
3.00 |
| 2026-04-08 00:00 |
14:28:36.45 |
-17:02:15.1 |
HIP 70801 |
3.26 |
| 2026-04-08 12:00 |
14:28:35.30 |
-17:02:09.5 |
HIP 70801 |
3.52 |
| 2026-04-09 00:00 |
14:28:34.15 |
-17:02:04.0 |
HIP 70801 |
3.79 |
| 2026-04-09 12:00 |
14:28:32.99 |
-17:01:58.4 |
HIP 70801 |
4.06 |
| 2026-04-10 00:00 |
14:28:31.83 |
-17:01:52.8 |
HIP 70801 |
4.34 |
| 2026-04-10 12:00 |
14:28:30.66 |
-17:01:47.1 |
HIP 70801 |
4.62 |
| 2026-04-11 00:00 |
14:28:29.49 |
-17:01:41.4 |
HIP 70795 |
4.82 |
| 2026-04-11 12:00 |
14:28:28.32 |
-17:01:35.7 |
HIP 70795 |
4.92 |
| 2026-04-12 00:00 |
14:28:27.15 |
-17:01:30.0 |
HIP 70795 |
5.04 |
| 2026-04-12 12:00 |
14:28:25.97 |
-17:01:24.3 |
HIP 70795 |
5.17 |
| 2026-04-13 00:00 |
14:28:24.78 |
-17:01:18.5 |
HIP 70795 |
5.31 |
| 2026-04-13 12:00 |
14:28:23.60 |
-17:01:12.7 |
HIP 70795 |
5.47 |
| 2026-04-14 00:00 |
14:28:22.41 |
-17:01:06.9 |
HIP 70795 |
5.64 |
| 2026-04-14 12:00 |
14:28:21.22 |
-17:01:01.1 |
HIP 70795 |
5.82 |
| 2026-04-15 00:00 |
14:28:20.02 |
-17:00:55.2 |
HIP 70795 |
6.02 |
| 2026-04-15 12:00 |
14:28:18.82 |
-17:00:49.4 |
HIP 70795 |
6.22 |
| 2026-04-16 00:00 |
14:28:17.62 |
-17:00:43.5 |
HIP 70795 |
6.43 |