| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
Object: M 23 (NGC 6494) region: Open (galactic) Cluster in Sagittarius |
Sensor: Film Kodak Ektachrome E200 120 6x7cm - ISO: 200: --- - Filter: Unfiltered |
|
|
| |
|
Center RA & Dec: 18h 02m 27.728s ... -22° 46' 24.930" - PosAngle: +---° --.-'' - Pixel Scale: 7.3"/Pixel |
Exposure: 1 x 20 minuts |
|
|
| |
|
Date, Time & Number: 1999.07.17 - 23h 41m 30s U.T.C. |
Location: Passo Forca (Aquila) - Italy |
|
|
| |
|
Instruments: TeleLens Mamiya/Sekor 180mm f/4.5 @ f/(5.6 |
Note c |
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
Photo: Danilo Pivato © Copyright: - Images & texts 1999 - All rights reserved |
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
Detail Image - Pixel Sandard
|
|
|
|
|
Map |
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
The Photographic History of the Open Cluster M23 through different focal lengths |
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
Focal Length 50mm |
Focal Length 100mm |
Focal Length 200mm |
Focal Length 300mm |
Focal Length 400mm |
Focal Length 500mm |
Focal Length 600mm |
Focal Length 760mm |
Focal Length 1268mm |
Focal Length 2100mm |
Focal Length 2910mm |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
- |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
| |
|
|
|
|
|
|
|
|
|
|
|
