GSO 0.20 m Sky-Watcher NEQ-5 Pro SynScan mount QHYCCD QHY5L-IIC + IR cut filter GSO Barlow lens 2.5x (APO) Baader Planetarium solar filter f: 2500 mm f/12.5 Milis, Italy 05/09/2017 14:13
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OBSERVATION DATA Mean distance from Earth: 1.496 × 10⁸ km Spectral classification: G2V PHYSICAL CHARACTERISTICS Equatorial circumference: 4.379 × 10⁶ km Mass: 1.9885 × 10³⁰ kg Equatorial surface gravity: 274 m/s² Escape velocity: 617.7 km/s Photosphere temperature: 5,772 K Luminosity: 3.828 × 10²⁶ W Age: 4.6 × 10⁹ years Photospheric composition by mass:
GSO 0.20 m Sky-Watcher NEQ-5 Pro SynScan mount QHYCCD QHY5L-IIC + IR cut filter GSO focal reducer 0.5x Baader Planetarium solar filter f: 500 mm f/2.5 Milis, Italy 31/08/2017 12:04 The photograph above shows granules on the photosphere of the Sun. These irregularly shaped features are produced by plasma convection currents below the Sun’s surface. Convection occurs when fusion reactions heat opaque gases, which causes them to rise to the surface and subsequently emit energy. Several million granules cover the Sun’s surface at any time; however, they usually last between 8 to 20 minutes before dissipating. To give a sense of scale to the photo, an average solar granule has a diameter of about 930 miles or 1500 kilometers. Always protect your eyes when observing the Sun. GSO 0.20 m Sky-Watcher NEQ-5 Pro SynScan mount QHYCCD QHY5L-IIC + IR cut filter GSO Barlow lens 2.5x (APO) Baader Planetarium solar filter f: 2500 mm f/12.5 Milis, Italy 18/08/2017 12:49 EARTH SCIENCE PICTURE OF THE DAY (EPOD) GSO 0.20 m Sky-Watcher NEQ-5 Pro SynScan mount QHYCCD QHY5L-IIC + IR cut filter GSO Barlow lens 2.5x (APO) Baader Planetarium solar filter f: 2500 mm f/12.5 Milis, Italy 18/08/2017 12:49 GSO 0.20 m Sky-Watcher NEQ-5 Pro SynScan mount QHYCCD QHY5L-IIC + IR cut filter GSO Barlow lens 2.5x (APO) Baader Planetarium solar filter f: 2500 mm f/12.5 Milis, Italy 10/07/2017 11:57 GSO 0.20 m Sky-Watcher NEQ-5 Pro SynScan mount QHYCCD QHY5L-IIC + IR cut filter GSO Barlow lens 2.5x (APO) Baader Planetarium solar filter f: 2500 mm f/12.5 Milis, Italy 31/03/2017 14:04 |