메타데이터
| 항목 |
값 |
| Designation |
C/1958 D1 (Burnham) |
| Type |
C |
| Perihelion (tp_cal, UTC) |
1958-04-16T07:16:54.157440Z |
| Orbit solution date (soln_date, UTC) |
2021-04-15T23:29:14Z |
| Obs used |
22 |
| NEO |
- |
| M1 |
- |
| K1 |
- |
| PC |
0.030 |
Osculating 궤도요소
| 항목 |
값 |
| Epoch (epoch_cal, TDB) |
1958-04-26.0000000 |
| e |
0.99991611 |
| q (au) |
1.322687 |
| a (au) |
15766.142934 |
| i (deg) |
15.787940 |
| Ω (om, deg) |
151.194462 |
| ω (w, deg) |
16.465841 |
| M (ma, deg) |
0.000005 |
밝기
산란 + 전체 선형
$$
M_a = (6.825 + 6.000\cdot 2.5\log_{10} r) + \epsilon - 2.5\log_{10}\Phi(\theta) + 5\log_{10}\Delta
$$
$$
\theta = 180^\circ - \alpha
$$
$$
\Phi(\theta) = \frac{\delta_{90} D(\theta) + 1}{\delta_{90} + 1},\quad D(\theta) = k\cdot \Phi_{HG}(\theta; g_f) + (1-k)\cdot \Phi_{HG}(\theta; g_b)
$$
$$
\Phi_{HG}(\theta; g) = \left(\frac{1+g^2}{1+g^2-2g\cos\theta}\right)^{3/2},\quad \Phi_{HG}(90^\circ)=1
$$
모델 상수
| 항목 |
값 |
| H0 |
6.825 |
| n |
6.000 |
| gf |
1.000 |
| gb |
-0.998 |
| 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
잔차 (구간 선형)
$$\epsilon = a \log_{10} r_{\mathrm{au}} + b$$
| 시작일 (UTC) |
끝 (UTC) |
a |
b |
| 1958-02-22 |
1958-04-15 |
+53.8968 |
-6.982 |
| 1958-04-17 |
1958-09-15 |
+11.0165 |
-1.782 |
log10 r = log10(태양거리/AU), Δ = 지구거리(AU)
천체력
| Date/Time (UTC) |
RA (J2000) |
Dec (J2000) |
Nearest HIP |
Dist from HIP (arcmin) |
| 2026-07-29 00:00 |
22:25:41.24 |
-10:46:07.1 |
HIP 110796 |
18.76 |
| 2026-07-29 12:00 |
22:25:40.18 |
-10:46:13.4 |
HIP 110796 |
19.04 |
| 2026-07-30 00:00 |
22:25:39.12 |
-10:46:19.8 |
HIP 110796 |
19.32 |
| 2026-07-30 12:00 |
22:25:38.06 |
-10:46:26.1 |
HIP 110796 |
19.60 |
| 2026-07-31 00:00 |
22:25:36.99 |
-10:46:32.6 |
HIP 110796 |
19.88 |
| 2026-07-31 12:00 |
22:25:35.92 |
-10:46:39.0 |
HIP 110796 |
20.16 |
| 2026-08-01 00:00 |
22:25:34.84 |
-10:46:45.5 |
HIP 110796 |
20.45 |
| 2026-08-01 12:00 |
22:25:33.75 |
-10:46:51.9 |
HIP 110796 |
20.73 |
| 2026-08-02 00:00 |
22:25:32.66 |
-10:46:58.5 |
HIP 110796 |
21.02 |
| 2026-08-02 12:00 |
22:25:31.57 |
-10:47:05.0 |
HIP 110796 |
21.31 |
| 2026-08-03 00:00 |
22:25:30.48 |
-10:47:11.5 |
HIP 110796 |
21.60 |
| 2026-08-03 12:00 |
22:25:29.37 |
-10:47:18.1 |
HIP 110796 |
21.89 |
| 2026-08-04 00:00 |
22:25:28.27 |
-10:47:24.7 |
HIP 110796 |
22.18 |
| 2026-08-04 12:00 |
22:25:27.16 |
-10:47:31.3 |
HIP 110796 |
22.48 |
| 2026-08-05 00:00 |
22:25:26.04 |
-10:47:38.0 |
HIP 110796 |
22.77 |
| 2026-08-05 12:00 |
22:25:24.93 |
-10:47:44.6 |
HIP 110691 |
22.95 |
| 2026-08-06 00:00 |
22:25:23.80 |
-10:47:51.3 |
HIP 110691 |
22.87 |
| 2026-08-06 12:00 |
22:25:22.68 |
-10:47:58.0 |
HIP 110691 |
22.79 |
| 2026-08-07 00:00 |
22:25:21.55 |
-10:48:04.7 |
HIP 110691 |
22.72 |
| 2026-08-07 12:00 |
22:25:20.42 |
-10:48:11.5 |
HIP 110691 |
22.66 |
| 2026-08-08 00:00 |
22:25:19.28 |
-10:48:18.2 |
HIP 110691 |
22.59 |
| 2026-08-08 12:00 |
22:25:18.14 |
-10:48:25.0 |
HIP 110691 |
22.53 |
| 2026-08-09 00:00 |
22:25:16.99 |
-10:48:31.8 |
HIP 110691 |
22.48 |
| 2026-08-09 12:00 |
22:25:15.85 |
-10:48:38.6 |
HIP 110691 |
22.42 |
| 2026-08-10 00:00 |
22:25:14.69 |
-10:48:45.4 |
HIP 110691 |
22.37 |
| 2026-08-10 12:00 |
22:25:13.54 |
-10:48:52.3 |
HIP 110691 |
22.33 |
| 2026-08-11 00:00 |
22:25:12.38 |
-10:48:59.1 |
HIP 110691 |
22.29 |
| 2026-08-11 12:00 |
22:25:11.22 |
-10:49:06.0 |
HIP 110691 |
22.25 |
| 2026-08-12 00:00 |
22:25:10.06 |
-10:49:12.9 |
HIP 110691 |
22.22 |
| 2026-08-12 12:00 |
22:25:08.89 |
-10:49:19.8 |
HIP 110691 |
22.19 |
| 2026-08-13 00:00 |
22:25:07.73 |
-10:49:26.7 |
HIP 110691 |
22.17 |
| 2026-08-13 12:00 |
22:25:06.55 |
-10:49:33.6 |
HIP 110691 |
22.15 |
| 2026-08-14 00:00 |
22:25:05.38 |
-10:49:40.6 |
HIP 110691 |
22.14 |
| 2026-08-14 12:00 |
22:25:04.20 |
-10:49:47.5 |
HIP 110691 |
22.13 |
| 2026-08-15 00:00 |
22:25:03.03 |
-10:49:54.5 |
HIP 110691 |
22.12 |
| 2026-08-15 12:00 |
22:25:01.84 |
-10:50:01.4 |
HIP 110691 |
22.12 |
| 2026-08-16 00:00 |
22:25:00.66 |
-10:50:08.4 |
HIP 110691 |
22.12 |
| 2026-08-16 12:00 |
22:24:59.48 |
-10:50:15.4 |
HIP 110691 |
22.13 |
| 2026-08-17 00:00 |
22:24:58.29 |
-10:50:22.4 |
HIP 110691 |
22.14 |
| 2026-08-17 12:00 |
22:24:57.10 |
-10:50:29.4 |
HIP 110691 |
22.15 |
| 2026-08-18 00:00 |
22:24:55.91 |
-10:50:36.4 |
HIP 110691 |
22.18 |
| 2026-08-18 12:00 |
22:24:54.72 |
-10:50:43.4 |
HIP 110691 |
22.20 |
| 2026-08-19 00:00 |
22:24:53.52 |
-10:50:50.5 |
HIP 110691 |
22.23 |