giovedì 27 dicembre 2012

ISS crosses the disk of the Sun

International Space Station (ISS) crossed the disk of the Sun on December 27, 2012 at 11h33m48s CET, Catania, Italy
Sun position: Azimuth 172.87° Altitude 28.87°
ISS angular diameter 35.7", distance 775.4 km,
angular velocity 28.0'/sec, transit duration  0.81 sec

Nikon D5100 at the primary focus of the Celestron Nexstar 127
1/1000 sec, ISO 1250, 4 fps continuous shooting


ISS

First frame


Second frame

Two frames animation

Zoom x 10
ISS is illuminated by sunlight reflected from Earth, nearly noon.

Star chart and observation times by




Nessun commento:

Posta un commento