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 |
-0.500 |
| 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) |
| 2026-05-12 00:00 |
22:26:47.78 |
-10:38:45.4 |
HIP 110796 |
1.27 |
| 2026-05-12 12:00 |
22:26:48.11 |
-10:38:43.9 |
HIP 110796 |
1.22 |
| 2026-05-13 00:00 |
22:26:48.42 |
-10:38:42.5 |
HIP 110796 |
1.19 |
| 2026-05-13 12:00 |
22:26:48.73 |
-10:38:41.2 |
HIP 110796 |
1.15 |
| 2026-05-14 00:00 |
22:26:49.02 |
-10:38:39.9 |
HIP 110796 |
1.13 |
| 2026-05-14 12:00 |
22:26:49.31 |
-10:38:38.6 |
HIP 110796 |
1.11 |
| 2026-05-15 00:00 |
22:26:49.58 |
-10:38:37.4 |
HIP 110796 |
1.09 |
| 2026-05-15 12:00 |
22:26:49.85 |
-10:38:36.3 |
HIP 110796 |
1.08 |
| 2026-05-16 00:00 |
22:26:50.10 |
-10:38:35.2 |
HIP 110796 |
1.08 |
| 2026-05-16 12:00 |
22:26:50.34 |
-10:38:34.2 |
HIP 110796 |
1.08 |
| 2026-05-17 00:00 |
22:26:50.58 |
-10:38:33.3 |
HIP 110796 |
1.08 |
| 2026-05-17 12:00 |
22:26:50.80 |
-10:38:32.4 |
HIP 110796 |
1.08 |
| 2026-05-18 00:00 |
22:26:51.01 |
-10:38:31.6 |
HIP 110796 |
1.09 |
| 2026-05-18 12:00 |
22:26:51.22 |
-10:38:30.8 |
HIP 110796 |
1.10 |
| 2026-05-19 00:00 |
22:26:51.41 |
-10:38:30.1 |
HIP 110796 |
1.12 |
| 2026-05-19 12:00 |
22:26:51.59 |
-10:38:29.4 |
HIP 110796 |
1.13 |
| 2026-05-20 00:00 |
22:26:51.77 |
-10:38:28.9 |
HIP 110796 |
1.14 |
| 2026-05-20 12:00 |
22:26:51.93 |
-10:38:28.3 |
HIP 110796 |
1.16 |
| 2026-05-21 00:00 |
22:26:52.08 |
-10:38:27.9 |
HIP 110796 |
1.18 |
| 2026-05-21 12:00 |
22:26:52.22 |
-10:38:27.5 |
HIP 110796 |
1.19 |
| 2026-05-22 00:00 |
22:26:52.35 |
-10:38:27.1 |
HIP 110796 |
1.21 |
| 2026-05-22 12:00 |
22:26:52.47 |
-10:38:26.8 |
HIP 110796 |
1.23 |
| 2026-05-23 00:00 |
22:26:52.58 |
-10:38:26.6 |
HIP 110796 |
1.24 |
| 2026-05-23 12:00 |
22:26:52.68 |
-10:38:26.4 |
HIP 110796 |
1.26 |
| 2026-05-24 00:00 |
22:26:52.77 |
-10:38:26.3 |
HIP 110796 |
1.27 |
| 2026-05-24 12:00 |
22:26:52.85 |
-10:38:26.3 |
HIP 110796 |
1.28 |
| 2026-05-25 00:00 |
22:26:52.92 |
-10:38:26.3 |
HIP 110796 |
1.30 |
| 2026-05-25 12:00 |
22:26:52.98 |
-10:38:26.4 |
HIP 110796 |
1.31 |
| 2026-05-26 00:00 |
22:26:53.03 |
-10:38:26.5 |
HIP 110796 |
1.32 |
| 2026-05-26 12:00 |
22:26:53.07 |
-10:38:26.7 |
HIP 110796 |
1.33 |
| 2026-05-27 00:00 |
22:26:53.09 |
-10:38:26.9 |
HIP 110796 |
1.33 |
| 2026-05-27 12:00 |
22:26:53.11 |
-10:38:27.2 |
HIP 110796 |
1.34 |
| 2026-05-28 00:00 |
22:26:53.12 |
-10:38:27.6 |
HIP 110796 |
1.35 |
| 2026-05-28 12:00 |
22:26:53.12 |
-10:38:28.0 |
HIP 110796 |
1.35 |
| 2026-05-29 00:00 |
22:26:53.10 |
-10:38:28.5 |
HIP 110796 |
1.35 |
| 2026-05-29 12:00 |
22:26:53.08 |
-10:38:29.1 |
HIP 110796 |
1.36 |
| 2026-05-30 00:00 |
22:26:53.04 |
-10:38:29.7 |
HIP 110796 |
1.36 |
| 2026-05-30 12:00 |
22:26:53.00 |
-10:38:30.3 |
HIP 110796 |
1.36 |
| 2026-05-31 00:00 |
22:26:52.95 |
-10:38:31.1 |
HIP 110796 |
1.36 |
| 2026-05-31 12:00 |
22:26:52.88 |
-10:38:31.8 |
HIP 110796 |
1.36 |
| 2026-06-01 00:00 |
22:26:52.81 |
-10:38:32.7 |
HIP 110796 |
1.35 |
| 2026-06-01 12:00 |
22:26:52.72 |
-10:38:33.6 |
HIP 110796 |
1.35 |
| 2026-06-02 00:00 |
22:26:52.63 |
-10:38:34.6 |
HIP 110796 |
1.35 |