메타데이터
| 항목 |
값 |
| Designation |
C/2009 T3 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2010-01-12T01:21:23.293440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:31:35Z |
| Obs used |
401 |
| NEO |
- |
| M1 |
13.600 |
| K1 |
8.750 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2009-12-02.0000000 |
| e |
0.99947085 |
| q (au) |
2.281140 |
| a (au) |
4310.962625 |
| i (deg) |
148.741818 |
| Ω (om, deg) |
60.093017 |
| ω (w, deg) |
32.447789 |
| M (ma, deg) |
359.999857 |
밝기
산란 + 전체 선형
$$
M_a = (12.720 + 3.596\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
12.720 |
| n |
3.596 |
| gf |
1.000 |
| gb |
-0.724 |
| k |
0.998 |
| δ90 |
9.993 |
| 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 |
15:34:24.74 |
-20:40:58.7 |
HIP 76302 |
22.33 |
| 2026-07-29 12:00 |
15:34:23.34 |
-20:40:54.4 |
HIP 76302 |
22.55 |
| 2026-07-30 00:00 |
15:34:21.96 |
-20:40:50.2 |
HIP 76302 |
22.77 |
| 2026-07-30 12:00 |
15:34:20.62 |
-20:40:46.1 |
HIP 76302 |
22.99 |
| 2026-07-31 00:00 |
15:34:19.31 |
-20:40:42.1 |
HIP 76302 |
23.21 |
| 2026-07-31 12:00 |
15:34:18.02 |
-20:40:38.2 |
HIP 76302 |
23.42 |
| 2026-08-01 00:00 |
15:34:16.76 |
-20:40:34.4 |
HIP 76302 |
23.63 |
| 2026-08-01 12:00 |
15:34:15.54 |
-20:40:30.7 |
HIP 76302 |
23.84 |
| 2026-08-02 00:00 |
15:34:14.34 |
-20:40:27.1 |
HIP 76302 |
24.04 |
| 2026-08-02 12:00 |
15:34:13.17 |
-20:40:23.6 |
HIP 76302 |
24.24 |
| 2026-08-03 00:00 |
15:34:12.03 |
-20:40:20.2 |
HIP 76302 |
24.44 |
| 2026-08-03 12:00 |
15:34:10.92 |
-20:40:16.9 |
HIP 76302 |
24.63 |
| 2026-08-04 00:00 |
15:34:09.84 |
-20:40:13.7 |
HIP 76302 |
24.82 |
| 2026-08-04 12:00 |
15:34:08.80 |
-20:40:10.5 |
HIP 76302 |
25.01 |
| 2026-08-05 00:00 |
15:34:07.78 |
-20:40:07.5 |
HIP 76302 |
25.19 |
| 2026-08-05 12:00 |
15:34:06.79 |
-20:40:04.6 |
HIP 76302 |
25.36 |
| 2026-08-06 00:00 |
15:34:05.83 |
-20:40:01.8 |
HIP 76302 |
25.53 |
| 2026-08-06 12:00 |
15:34:04.90 |
-20:39:59.0 |
HIP 76302 |
25.70 |
| 2026-08-07 00:00 |
15:34:03.99 |
-20:39:56.4 |
HIP 76302 |
25.86 |
| 2026-08-07 12:00 |
15:34:03.12 |
-20:39:53.9 |
HIP 76302 |
26.02 |
| 2026-08-08 00:00 |
15:34:02.28 |
-20:39:51.5 |
HIP 76302 |
26.17 |
| 2026-08-08 12:00 |
15:34:01.47 |
-20:39:49.1 |
HIP 76302 |
26.32 |
| 2026-08-09 00:00 |
15:34:00.69 |
-20:39:46.9 |
HIP 76302 |
26.46 |
| 2026-08-09 12:00 |
15:33:59.94 |
-20:39:44.8 |
HIP 76302 |
26.60 |
| 2026-08-10 00:00 |
15:33:59.22 |
-20:39:42.8 |
HIP 76302 |
26.73 |
| 2026-08-10 12:00 |
15:33:58.54 |
-20:39:40.8 |
HIP 76302 |
26.86 |
| 2026-08-11 00:00 |
15:33:57.88 |
-20:39:39.0 |
HIP 76302 |
26.98 |
| 2026-08-11 12:00 |
15:33:57.25 |
-20:39:37.3 |
HIP 76302 |
27.10 |
| 2026-08-12 00:00 |
15:33:56.65 |
-20:39:35.7 |
HIP 76302 |
27.21 |
| 2026-08-12 12:00 |
15:33:56.08 |
-20:39:34.2 |
HIP 76302 |
27.31 |
| 2026-08-13 00:00 |
15:33:55.54 |
-20:39:32.8 |
HIP 76302 |
27.41 |
| 2026-08-13 12:00 |
15:33:55.04 |
-20:39:31.5 |
HIP 76302 |
27.50 |
| 2026-08-14 00:00 |
15:33:54.56 |
-20:39:30.3 |
HIP 76302 |
27.59 |
| 2026-08-14 12:00 |
15:33:54.11 |
-20:39:29.2 |
HIP 76056 |
27.52 |
| 2026-08-15 00:00 |
15:33:53.70 |
-20:39:28.1 |
HIP 76056 |
27.42 |
| 2026-08-15 12:00 |
15:33:53.31 |
-20:39:27.3 |
HIP 76056 |
27.33 |
| 2026-08-16 00:00 |
15:33:52.96 |
-20:39:26.5 |
HIP 76056 |
27.25 |
| 2026-08-16 12:00 |
15:33:52.63 |
-20:39:25.8 |
HIP 76056 |
27.17 |
| 2026-08-17 00:00 |
15:33:52.34 |
-20:39:25.2 |
HIP 76056 |
27.10 |
| 2026-08-17 12:00 |
15:33:52.07 |
-20:39:24.7 |
HIP 76056 |
27.04 |
| 2026-08-18 00:00 |
15:33:51.84 |
-20:39:24.3 |
HIP 76056 |
26.99 |
| 2026-08-18 12:00 |
15:33:51.64 |
-20:39:24.0 |
HIP 76056 |
26.94 |
| 2026-08-19 00:00 |
15:33:51.46 |
-20:39:23.8 |
HIP 76056 |
26.90 |