메타데이터
| 항목 |
값 |
| Designation |
467P/LINEAR-Grauer |
| Type |
P |
| Perihelion (tp_cal, UTC) |
2009-01-06T17:10:22.854720Z |
| Orbit solution date (soln_date, UTC) |
2025-01-02T20:13:05Z |
| Obs used |
98 |
| NEO |
- |
| M1 |
8.000 |
| K1 |
12.000 |
| PC |
- |
| Discovery observation (MPC, UTC) |
2023-04-20T09:25:04.483200Z |
| Discovery magnitude (MPC) |
23.00 G |
| Discovery observatory (MPC) |
I11 · Gemini South Observatory, Cerro Pachon |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
2012-10-23.0000000 |
| e |
0.07147570 |
| q (au) |
5.293712 |
| a (au) |
5.701210 |
| i (deg) |
2.531000 |
| Ω (om, deg) |
44.086442 |
| ω (w, deg) |
264.661424 |
| M (ma, deg) |
100.298035 |
밝기
산란 + 전체 선형
$$
M_a = (14.752 + 2.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
14.752 |
| n |
2.000 |
| gf |
0.858 |
| gb |
-0.936 |
| k |
1.000 |
| δ90 |
5.591 |
| 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) |
| 2026-09-20 00:00 |
04:05:38.24 |
+21:22:35.6 |
HIP 19216 |
22.09 |
| 2026-09-20 12:00 |
04:05:37.90 |
+21:22:43.1 |
HIP 19216 |
22.20 |
| 2026-09-21 00:00 |
04:05:37.39 |
+21:22:50.1 |
HIP 19216 |
22.35 |
| 2026-09-21 12:00 |
04:05:36.69 |
+21:22:56.6 |
HIP 19216 |
22.54 |
| 2026-09-22 00:00 |
04:05:35.82 |
+21:23:02.7 |
HIP 19216 |
22.77 |
| 2026-09-22 12:00 |
04:05:34.76 |
+21:23:08.3 |
HIP 19216 |
23.03 |
| 2026-09-23 00:00 |
04:05:33.53 |
+21:23:13.4 |
HIP 19216 |
23.33 |
| 2026-09-23 12:00 |
04:05:32.11 |
+21:23:18.1 |
HIP 19216 |
23.67 |
| 2026-09-24 00:00 |
04:05:30.52 |
+21:23:22.3 |
HIP 19216 |
24.04 |
| 2026-09-24 12:00 |
04:05:28.75 |
+21:23:26.0 |
HIP 19216 |
24.45 |
| 2026-09-25 00:00 |
04:05:26.80 |
+21:23:29.2 |
HIP 19216 |
24.90 |
| 2026-09-25 12:00 |
04:05:24.67 |
+21:23:31.9 |
HIP 19216 |
25.38 |
| 2026-09-26 00:00 |
04:05:22.36 |
+21:23:34.2 |
HIP 19216 |
25.91 |
| 2026-09-26 12:00 |
04:05:19.87 |
+21:23:36.0 |
HIP 19216 |
26.47 |
| 2026-09-27 00:00 |
04:05:17.21 |
+21:23:37.3 |
HIP 18976 |
26.75 |
| 2026-09-27 12:00 |
04:05:14.37 |
+21:23:38.1 |
HIP 18976 |
26.30 |
| 2026-09-28 00:00 |
04:05:11.34 |
+21:23:38.4 |
HIP 18976 |
25.84 |
| 2026-09-28 12:00 |
04:05:08.14 |
+21:23:38.3 |
HIP 18976 |
25.35 |
| 2026-09-29 00:00 |
04:05:04.76 |
+21:23:37.6 |
HIP 18976 |
24.84 |
| 2026-09-29 12:00 |
04:05:01.21 |
+21:23:36.5 |
HIP 18976 |
24.32 |
| 2026-09-30 00:00 |
04:04:57.47 |
+21:23:34.9 |
HIP 18976 |
23.78 |
| 2026-09-30 12:00 |
04:04:53.56 |
+21:23:32.8 |
HIP 18976 |
23.23 |
| 2026-10-01 00:00 |
04:04:49.47 |
+21:23:30.3 |
HIP 18976 |
22.68 |
| 2026-10-01 12:00 |
04:04:45.21 |
+21:23:27.2 |
HIP 18976 |
22.12 |
| 2026-10-02 00:00 |
04:04:40.76 |
+21:23:23.7 |
HIP 18976 |
21.57 |
| 2026-10-02 12:00 |
04:04:36.15 |
+21:23:19.6 |
HIP 18976 |
21.04 |
| 2026-10-03 00:00 |
04:04:31.35 |
+21:23:15.1 |
HIP 18976 |
20.52 |
| 2026-10-03 12:00 |
04:04:26.38 |
+21:23:10.1 |
HIP 18976 |
20.03 |
| 2026-10-04 00:00 |
04:04:21.23 |
+21:23:04.6 |
HIP 18976 |
19.58 |
| 2026-10-04 12:00 |
04:04:15.91 |
+21:22:58.6 |
HIP 18976 |
19.18 |
| 2026-10-05 00:00 |
04:04:10.41 |
+21:22:52.2 |
HIP 18976 |
18.84 |
| 2026-10-05 12:00 |
04:04:04.74 |
+21:22:45.2 |
HIP 18976 |
18.56 |
| 2026-10-06 00:00 |
04:03:58.90 |
+21:22:37.7 |
HIP 18976 |
18.37 |
| 2026-10-06 12:00 |
04:03:52.88 |
+21:22:29.8 |
HIP 18976 |
18.28 |
| 2026-10-07 00:00 |
04:03:46.69 |
+21:22:21.4 |
HIP 18976 |
18.29 |
| 2026-10-07 12:00 |
04:03:40.33 |
+21:22:12.5 |
HIP 18976 |
18.42 |
| 2026-10-08 00:00 |
04:03:33.80 |
+21:22:03.0 |
HIP 18976 |
18.67 |
| 2026-10-08 12:00 |
04:03:27.10 |
+21:21:53.2 |
HIP 18976 |
19.05 |
| 2026-10-09 00:00 |
04:03:20.23 |
+21:21:42.8 |
HIP 18976 |
19.55 |
| 2026-10-09 12:00 |
04:03:13.19 |
+21:21:31.9 |
HIP 18976 |
20.19 |
| 2026-10-10 00:00 |
04:03:05.98 |
+21:21:20.6 |
HIP 18976 |
20.95 |
| 2026-10-10 12:00 |
04:02:58.61 |
+21:21:08.7 |
HIP 18976 |
21.84 |
| 2026-10-11 00:00 |
04:02:51.07 |
+21:20:56.4 |
HIP 18976 |
22.85 |