... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Golden Earring, planetary nebula NGC 2867, and barred spiral galaxy NGC 3109 . ... Equipment Use . StarDome . The Horsehead Nebula in Orion . Тљ . Тљ . Тљ . ...
... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Golden Earring, planetary nebula NGC 2867, and barred spiral galaxy NGC 3109 . ... Equipment Use . StarDome . The Horsehead Nebula in Orion . Тљ . Тљ . Тљ . ...
... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Golden Earring, planetary nebula NGC 2867, and barred spiral galaxy NGC 3109 . ... Equipment Use . StarDome . The Horsehead Nebula in Orion . Тљ . Тљ . Тљ . ...
... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Golden Earring, planetary nebula NGC 2867, and barred spiral galaxy NGC 3109 . ... Equipment Use . StarDome . The Horsehead Nebula in Orion . Тљ . Тљ . Тљ . ...
... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Golden Earring, planetary nebula NGC 2867, and barred spiral galaxy NGC 3109 . ... Equipment Use . StarDome . The Horsehead Nebula in Orion . Тљ . Тљ . Тљ . ...
... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Golden Earring, planetary nebula NGC 2867, and barred spiral galaxy NGC 3109 . ... Equipment Use . StarDome . The Horsehead Nebula in Orion . Тљ . Тљ . Тљ . ...
... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Golden Earring, planetary nebula NGC 2867, and barred spiral galaxy NGC 3109 . ... Equipment Use . StarDome . The Horsehead Nebula in Orion . Тљ . Тљ . Тљ . ...
... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Golden Earring, planetary nebula NGC 2867, and barred spiral galaxy NGC 3109 . ... Equipment Use . StarDome . The Horsehead Nebula in Orion . Тљ . Тљ . Тљ . ...
... In the 1920s, two problems were tackled: light loss caused by reflections off air-to-glass surfaces, and internal reflections within the lens system. ...
... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... The Golden Earring, planetary nebula NGC 2867, and barred spiral galaxy NGC 3109 . ... Equipment Use . StarDome . The Horsehead Nebula in Orion . Тљ . Тљ . Тљ . ...