메타데이터
| 항목 |
값 |
| Designation |
C/1968 Q1 (Bally-Clayton) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1968-08-20T20:17:35.787840Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:19Z |
| Obs used |
52 |
| NEO |
- |
| M1 |
8.500 |
| K1 |
6.500 |
| PC |
- |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1968-09-19.0000000 |
| e |
1.00000000 |
| q (au) |
1.771094 |
| a (au) |
- |
| i (deg) |
93.169377 |
| Ω (om, deg) |
319.395346 |
| ω (w, deg) |
26.864965 |
| M (ma, deg) |
- |
밝기
산란 + 전체 선형
$$
M_a = (7.709 + 5.798\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
7.709 |
| n |
5.798 |
| gf |
1.000 |
| gb |
-0.782 |
| k |
0.800 |
| 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) |
| 2026-03-26 00:00 |
09:10:29.32 |
+05:42:15.3 |
HIP 44917 |
22.45 |
| 2026-03-26 12:00 |
09:10:28.40 |
+05:42:22.0 |
HIP 44917 |
22.26 |
| 2026-03-27 00:00 |
09:10:27.48 |
+05:42:28.7 |
HIP 44917 |
22.07 |
| 2026-03-27 12:00 |
09:10:26.57 |
+05:42:35.3 |
HIP 44917 |
21.88 |
| 2026-03-28 00:00 |
09:10:25.68 |
+05:42:42.0 |
HIP 44917 |
21.70 |
| 2026-03-28 12:00 |
09:10:24.79 |
+05:42:48.6 |
HIP 44917 |
21.52 |
| 2026-03-29 00:00 |
09:10:23.91 |
+05:42:55.2 |
HIP 44917 |
21.35 |
| 2026-03-29 12:00 |
09:10:23.04 |
+05:43:01.7 |
HIP 44917 |
21.17 |
| 2026-03-30 00:00 |
09:10:22.18 |
+05:43:08.3 |
HIP 44917 |
21.01 |
| 2026-03-30 12:00 |
09:10:21.33 |
+05:43:14.8 |
HIP 44917 |
20.84 |
| 2026-03-31 00:00 |
09:10:20.50 |
+05:43:21.3 |
HIP 44917 |
20.68 |
| 2026-03-31 12:00 |
09:10:19.67 |
+05:43:27.7 |
HIP 44917 |
20.52 |
| 2026-04-01 00:00 |
09:10:18.85 |
+05:43:34.2 |
HIP 44917 |
20.37 |
| 2026-04-01 12:00 |
09:10:18.04 |
+05:43:40.6 |
HIP 44917 |
20.22 |
| 2026-04-02 00:00 |
09:10:17.24 |
+05:43:46.9 |
HIP 44917 |
20.07 |
| 2026-04-02 12:00 |
09:10:16.45 |
+05:43:53.3 |
HIP 44917 |
19.93 |
| 2026-04-03 00:00 |
09:10:15.67 |
+05:43:59.6 |
HIP 44917 |
19.79 |
| 2026-04-03 12:00 |
09:10:14.91 |
+05:44:05.9 |
HIP 44917 |
19.65 |
| 2026-04-04 00:00 |
09:10:14.15 |
+05:44:12.2 |
HIP 44917 |
19.52 |
| 2026-04-04 12:00 |
09:10:13.40 |
+05:44:18.4 |
HIP 44917 |
19.39 |
| 2026-04-05 00:00 |
09:10:12.66 |
+05:44:24.6 |
HIP 44917 |
19.27 |
| 2026-04-05 12:00 |
09:10:11.94 |
+05:44:30.8 |
HIP 44917 |
19.14 |
| 2026-04-06 00:00 |
09:10:11.22 |
+05:44:37.0 |
HIP 44917 |
19.03 |
| 2026-04-06 12:00 |
09:10:10.52 |
+05:44:43.1 |
HIP 44917 |
18.91 |
| 2026-04-07 00:00 |
09:10:09.82 |
+05:44:49.2 |
HIP 44917 |
18.80 |
| 2026-04-07 12:00 |
09:10:09.14 |
+05:44:55.2 |
HIP 44917 |
18.70 |
| 2026-04-08 00:00 |
09:10:08.46 |
+05:45:01.2 |
HIP 44917 |
18.59 |
| 2026-04-08 12:00 |
09:10:07.80 |
+05:45:07.2 |
HIP 44917 |
18.49 |
| 2026-04-09 00:00 |
09:10:07.15 |
+05:45:13.2 |
HIP 44917 |
18.40 |
| 2026-04-09 12:00 |
09:10:06.51 |
+05:45:19.1 |
HIP 44917 |
18.30 |
| 2026-04-10 00:00 |
09:10:05.88 |
+05:45:25.0 |
HIP 44917 |
18.22 |
| 2026-04-10 12:00 |
09:10:05.26 |
+05:45:30.8 |
HIP 44917 |
18.13 |
| 2026-04-11 00:00 |
09:10:04.65 |
+05:45:36.7 |
HIP 44917 |
18.05 |
| 2026-04-11 12:00 |
09:10:04.05 |
+05:45:42.4 |
HIP 44917 |
17.97 |
| 2026-04-12 00:00 |
09:10:03.47 |
+05:45:48.2 |
HIP 44917 |
17.89 |
| 2026-04-12 12:00 |
09:10:02.89 |
+05:45:53.9 |
HIP 44917 |
17.82 |
| 2026-04-13 00:00 |
09:10:02.33 |
+05:45:59.6 |
HIP 44917 |
17.75 |
| 2026-04-13 12:00 |
09:10:01.77 |
+05:46:05.2 |
HIP 44917 |
17.69 |
| 2026-04-14 00:00 |
09:10:01.23 |
+05:46:10.8 |
HIP 44917 |
17.63 |
| 2026-04-14 12:00 |
09:10:00.70 |
+05:46:16.3 |
HIP 44917 |
17.57 |
| 2026-04-15 00:00 |
09:10:00.18 |
+05:46:21.8 |
HIP 44917 |
17.51 |
| 2026-04-15 12:00 |
09:09:59.68 |
+05:46:27.3 |
HIP 44917 |
17.46 |
| 2026-04-16 00:00 |
09:09:59.18 |
+05:46:32.7 |
HIP 44917 |
17.41 |