메타데이터
| 항목 |
값 |
| Designation |
C/2012 Y1 (LINEAR) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
2013-01-18T04:43:29.334720Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:32:29Z |
| Obs used |
139 |
| NEO |
- |
| M1 |
15.100 |
| K1 |
10.000 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2013-01-17.0000000 |
| e |
0.94686433 |
| q (au) |
2.016201 |
| a (au) |
37.944395 |
| i (deg) |
20.959420 |
| Ω (om, deg) |
193.245089 |
| ω (w, deg) |
268.830766 |
| M (ma, deg) |
359.994953 |
밝기
산란 + 전체 선형
$$
M_a = (15.253 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
15.253 |
| n |
2.000 |
| gf |
1.000 |
| gb |
-0.501 |
| 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) |
| 2026-06-01 00:00 |
17:04:22.90 |
-03:22:35.5 |
HIP 83510 |
47.87 |
| 2026-06-01 12:00 |
17:04:18.79 |
-03:22:26.4 |
HIP 83510 |
47.61 |
| 2026-06-02 00:00 |
17:04:14.68 |
-03:22:17.6 |
HIP 83510 |
47.38 |
| 2026-06-02 12:00 |
17:04:10.56 |
-03:22:08.9 |
HIP 83510 |
47.18 |
| 2026-06-03 00:00 |
17:04:06.44 |
-03:22:00.4 |
HIP 83510 |
46.99 |
| 2026-06-03 12:00 |
17:04:02.32 |
-03:21:52.1 |
HIP 83510 |
46.84 |
| 2026-06-04 00:00 |
17:03:58.19 |
-03:21:44.0 |
HIP 83510 |
46.71 |
| 2026-06-04 12:00 |
17:03:54.06 |
-03:21:36.0 |
HIP 83510 |
46.60 |
| 2026-06-05 00:00 |
17:03:49.93 |
-03:21:28.3 |
HIP 83510 |
46.53 |
| 2026-06-05 12:00 |
17:03:45.80 |
-03:21:20.7 |
HIP 83510 |
46.47 |
| 2026-06-06 00:00 |
17:03:41.67 |
-03:21:13.3 |
HIP 83510 |
46.45 |
| 2026-06-06 12:00 |
17:03:37.53 |
-03:21:06.2 |
HIP 83510 |
46.45 |
| 2026-06-07 00:00 |
17:03:33.40 |
-03:20:59.1 |
HIP 83510 |
46.48 |
| 2026-06-07 12:00 |
17:03:29.26 |
-03:20:52.3 |
HIP 83510 |
46.53 |
| 2026-06-08 00:00 |
17:03:25.12 |
-03:20:45.7 |
HIP 83510 |
46.61 |
| 2026-06-08 12:00 |
17:03:20.99 |
-03:20:39.3 |
HIP 83510 |
46.71 |
| 2026-06-09 00:00 |
17:03:16.85 |
-03:20:33.0 |
HIP 83510 |
46.84 |
| 2026-06-09 12:00 |
17:03:12.72 |
-03:20:27.0 |
HIP 83510 |
47.00 |
| 2026-06-10 00:00 |
17:03:08.59 |
-03:20:21.1 |
HIP 83510 |
47.18 |
| 2026-06-10 12:00 |
17:03:04.46 |
-03:20:15.4 |
HIP 83510 |
47.39 |
| 2026-06-11 00:00 |
17:03:00.33 |
-03:20:09.9 |
HIP 83510 |
47.62 |
| 2026-06-11 12:00 |
17:02:56.20 |
-03:20:04.6 |
HIP 83510 |
47.88 |
| 2026-06-12 00:00 |
17:02:52.08 |
-03:19:59.5 |
HIP 83510 |
48.16 |
| 2026-06-12 12:00 |
17:02:47.96 |
-03:19:54.6 |
HIP 83510 |
48.46 |
| 2026-06-13 00:00 |
17:02:43.84 |
-03:19:49.9 |
HIP 83510 |
48.78 |
| 2026-06-13 12:00 |
17:02:39.73 |
-03:19:45.4 |
HIP 83510 |
49.13 |
| 2026-06-14 00:00 |
17:02:35.62 |
-03:19:41.1 |
HIP 83510 |
49.50 |
| 2026-06-14 12:00 |
17:02:31.52 |
-03:19:36.9 |
HIP 83510 |
49.89 |
| 2026-06-15 00:00 |
17:02:27.42 |
-03:19:33.0 |
HIP 83510 |
50.30 |
| 2026-06-15 12:00 |
17:02:23.33 |
-03:19:29.3 |
HIP 83510 |
50.73 |
| 2026-06-16 00:00 |
17:02:19.24 |
-03:19:25.7 |
HIP 83510 |
51.17 |
| 2026-06-16 12:00 |
17:02:15.16 |
-03:19:22.4 |
HIP 83510 |
51.64 |
| 2026-06-17 00:00 |
17:02:11.09 |
-03:19:19.2 |
HIP 83510 |
52.12 |
| 2026-06-17 12:00 |
17:02:07.02 |
-03:19:16.3 |
HIP 83510 |
52.63 |
| 2026-06-18 00:00 |
17:02:02.96 |
-03:19:13.5 |
HIP 83510 |
53.14 |
| 2026-06-18 12:00 |
17:01:58.91 |
-03:19:11.0 |
HIP 83510 |
53.68 |
| 2026-06-19 00:00 |
17:01:54.86 |
-03:19:08.6 |
HIP 83510 |
54.23 |
| 2026-06-19 12:00 |
17:01:50.82 |
-03:19:06.4 |
HIP 83510 |
54.79 |
| 2026-06-20 00:00 |
17:01:46.80 |
-03:19:04.4 |
HIP 83262 |
55.33 |
| 2026-06-20 12:00 |
17:01:42.78 |
-03:19:02.7 |
HIP 83262 |
55.17 |
| 2026-06-21 00:00 |
17:01:38.77 |
-03:19:01.1 |
HIP 83262 |
55.03 |
| 2026-06-21 12:00 |
17:01:34.77 |
-03:18:59.7 |
HIP 83262 |
54.90 |
| 2026-06-22 00:00 |
17:01:30.78 |
-03:18:58.5 |
HIP 83262 |
54.79 |