메타데이터
| 항목 |
값 |
| Designation |
C/1999 N2 (Lynn) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1999-07-23T01:12:49.584960Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:30:01Z |
| Obs used |
203 |
| NEO |
- |
| M1 |
10.200 |
| K1 |
7.000 |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1999-08-07.0000000 |
| e |
0.99743788 |
| q (au) |
0.761284 |
| a (au) |
297.130861 |
| i (deg) |
111.655898 |
| Ω (om, deg) |
254.675893 |
| ω (w, deg) |
357.834196 |
| M (ma, deg) |
0.002877 |
밝기
산란 + 전체 선형
$$
M_a = (9.119 + 3.568\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
9.119 |
| n |
3.568 |
| gf |
0.800 |
| gb |
-0.711 |
| k |
0.800 |
| δ90 |
1.362 |
| 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) |
| 2026-03-26 00:00 |
05:08:10.60 |
+37:35:01.9 |
HIP 24013 |
19.19 |
| 2026-03-26 12:00 |
05:08:11.45 |
+37:34:53.0 |
HIP 24013 |
19.07 |
| 2026-03-27 00:00 |
05:08:12.32 |
+37:34:44.2 |
HIP 24013 |
18.96 |
| 2026-03-27 12:00 |
05:08:13.22 |
+37:34:35.4 |
HIP 24013 |
18.84 |
| 2026-03-28 00:00 |
05:08:14.14 |
+37:34:26.7 |
HIP 24013 |
18.72 |
| 2026-03-28 12:00 |
05:08:15.08 |
+37:34:18.0 |
HIP 24013 |
18.60 |
| 2026-03-29 00:00 |
05:08:16.05 |
+37:34:09.4 |
HIP 24013 |
18.47 |
| 2026-03-29 12:00 |
05:08:17.04 |
+37:34:00.8 |
HIP 24013 |
18.34 |
| 2026-03-30 00:00 |
05:08:18.06 |
+37:33:52.3 |
HIP 24013 |
18.21 |
| 2026-03-30 12:00 |
05:08:19.10 |
+37:33:43.8 |
HIP 24013 |
18.08 |
| 2026-03-31 00:00 |
05:08:20.17 |
+37:33:35.4 |
HIP 24013 |
17.94 |
| 2026-03-31 12:00 |
05:08:21.26 |
+37:33:27.1 |
HIP 24013 |
17.80 |
| 2026-04-01 00:00 |
05:08:22.37 |
+37:33:18.8 |
HIP 24013 |
17.66 |
| 2026-04-01 12:00 |
05:08:23.51 |
+37:33:10.6 |
HIP 24013 |
17.52 |
| 2026-04-02 00:00 |
05:08:24.67 |
+37:33:02.4 |
HIP 24013 |
17.38 |
| 2026-04-02 12:00 |
05:08:25.85 |
+37:32:54.3 |
HIP 24013 |
17.23 |
| 2026-04-03 00:00 |
05:08:27.06 |
+37:32:46.3 |
HIP 24013 |
17.08 |
| 2026-04-03 12:00 |
05:08:28.29 |
+37:32:38.3 |
HIP 24013 |
16.94 |
| 2026-04-04 00:00 |
05:08:29.54 |
+37:32:30.4 |
HIP 24013 |
16.79 |
| 2026-04-04 12:00 |
05:08:30.82 |
+37:32:22.5 |
HIP 24013 |
16.64 |
| 2026-04-05 00:00 |
05:08:32.11 |
+37:32:14.7 |
HIP 24013 |
16.49 |
| 2026-04-05 12:00 |
05:08:33.44 |
+37:32:06.9 |
HIP 24013 |
16.33 |
| 2026-04-06 00:00 |
05:08:34.78 |
+37:31:59.3 |
HIP 24013 |
16.18 |
| 2026-04-06 12:00 |
05:08:36.15 |
+37:31:51.6 |
HIP 24013 |
16.03 |
| 2026-04-07 00:00 |
05:08:37.54 |
+37:31:44.1 |
HIP 24013 |
15.88 |
| 2026-04-07 12:00 |
05:08:38.95 |
+37:31:36.6 |
HIP 24013 |
15.72 |
| 2026-04-08 00:00 |
05:08:40.38 |
+37:31:29.1 |
HIP 24013 |
15.57 |
| 2026-04-08 12:00 |
05:08:41.84 |
+37:31:21.8 |
HIP 24013 |
15.42 |
| 2026-04-09 00:00 |
05:08:43.31 |
+37:31:14.5 |
HIP 24013 |
15.27 |
| 2026-04-09 12:00 |
05:08:44.81 |
+37:31:07.2 |
HIP 24013 |
15.12 |
| 2026-04-10 00:00 |
05:08:46.34 |
+37:31:00.0 |
HIP 24013 |
14.97 |
| 2026-04-10 12:00 |
05:08:47.88 |
+37:30:52.9 |
HIP 24013 |
14.83 |
| 2026-04-11 00:00 |
05:08:49.44 |
+37:30:45.9 |
HIP 24013 |
14.68 |
| 2026-04-11 12:00 |
05:08:51.03 |
+37:30:38.9 |
HIP 24013 |
14.54 |
| 2026-04-12 00:00 |
05:08:52.64 |
+37:30:32.0 |
HIP 24013 |
14.40 |
| 2026-04-12 12:00 |
05:08:54.26 |
+37:30:25.1 |
HIP 24013 |
14.26 |
| 2026-04-13 00:00 |
05:08:55.91 |
+37:30:18.3 |
HIP 24013 |
14.13 |
| 2026-04-13 12:00 |
05:08:57.58 |
+37:30:11.6 |
HIP 24013 |
14.00 |
| 2026-04-14 00:00 |
05:08:59.27 |
+37:30:05.0 |
HIP 24013 |
13.88 |
| 2026-04-14 12:00 |
05:09:00.99 |
+37:29:58.4 |
HIP 24013 |
13.76 |
| 2026-04-15 00:00 |
05:09:02.72 |
+37:29:51.9 |
HIP 24013 |
13.64 |
| 2026-04-15 12:00 |
05:09:04.47 |
+37:29:45.4 |
HIP 24013 |
13.53 |
| 2026-04-16 00:00 |
05:09:06.24 |
+37:29:39.0 |
HIP 24013 |
13.43 |