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Bulan ( Satelit Bumi )

Bulan ( Satelit Bumi ). PERMUKAAN BULAN. DETAIL PERMUKAAN BULAN. FAKTA TENTANG BULAN :. Jarak rata-rata Bumi-Bulan: 384.400 km Tidak memiliki cahaya sendiri Massa Bulan ± 1/18 Massa Bumi Gravitasi permukaan bulan ± 1/6 di Bumi Garis tengah 3476 km (≥ ¼ R bumi)

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Bulan ( Satelit Bumi )

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  1. Bulan ( Satelit Bumi )

  2. PERMUKAAN BULAN

  3. DETAIL PERMUKAAN BULAN

  4. FAKTA TENTANG BULAN : • Jarak rata-rata Bumi-Bulan: 384.400 km • Tidak memiliki cahaya sendiri • Massa Bulan ± 1/18 Massa Bumi • Gravitasi permukaan bulan ± 1/6 di Bumi • Garis tengah 3476 km (≥ ¼ R bumi) • Tidak mempunyai air, atmosfer, medan magnet, • Suhu sangat fluktuatif (110 oC s.d -173 oC)

  5. GERAK BULAN • Rotasi • Revolusi • Bersama dengan Bumi mengintari Matahari

  6. ORBIT BULAN Orbit Bulan Orbit Bumi (Ekliptika) 50

  7. Bidang Lintasan Bulan Bidang orbit Bulan Garis simpul Simpul B Ekliptika Simpul A  = 50

  8. GERAK BULAN B C 26.92848o A

  9. KARAKTERISTIK GERAK BULAN • Bidang orbit Bulan membentuk sudut 5o thd bidang ekliptika bumi. • Periode Sinodik: 29.5 hari; Periode Siderik: 27.3 hari • Periode rotasinya sama = periode Revolusi. • Jarak terdekat dengan bumi disebut perigee (356.400 km) dan jarak terjauhnya disebut apogee (384.400 km)

  10. GAYA TARIK GRAVITASI F BB F BM

  11. 7 6 8 5 1 4 2 3 FASE BULAN

  12. URUTAN FASE BULAN Bulan baru Bulan sabit Bulan sabit Perbani akhir Perbani awal Bulan benjol Bulan benjol Bulan purnama

  13. ASPEK BULAN Kwarter Akhir Oposisi Konjungsi Kwarter Awal

  14. GERHANA Bayangan Bumi atau Bulan Perpanjangan Umbra Umbra Penumbra

  15. Gerhana Bulan

  16. Gerhana Matahari Matahari Penuh Gerhana Parsial Gerhana total

  17. Ragam Gerhana Matahari Gerhana Cincin Gerhana Total Gerhana Sebagian

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