Corvus Eye Observatory, Athens & Syros, Greece

Our Srar

Our Star
Its image is mesmerizing - out of this world - through a solar telescope...
A star full of life, willing to talk to you, sometimes through its carefree fairies (prominences), dancing at the disk limbs or its black halos (sun spots) and serpentine figures (filaments), crawling on its surface making any observer gazing at them in awe...

A fascinating spectacle changing every day without repeating the magic of the previous day...
This is what makes it a unique, worth observing celestial object by amateur and professional astronomers alike....

Thank you for visiting my Blog
Peter Desypris

Hydrogen-alpha & White Light Solar imaging

Thursday, March 23, 2023

Solar Activity, March 23,2023

LUNT- LS100THa PT (Single Stacked)-(D=102mm- F=714mm- f/7)/ B1800 / Barlow 2X / DMK31AU03.AS

Athens, Greece

Saturday, March 18, 2023

Solar Activity, February 22, 2023

LUNT- LS100THa PT (Single Stacked)-(D=102mm- F=714mm- f/7)/ B1800 / Barlow 2X / DMK31AU03.AS

Athens, Greece

Solar Activity, February 19, 2023

LUNT- LS100THa PT (Single Stacked)-(D=102mm- F=714mm- f/7)/ B1800 / Barlow 2X / DMK31AU03.AS

Athens, Greece

Solar Activity, February 18, 2023

AR13226

LUNT- LS100THa PT (Single Stacked)-(D=102mm- F=714mm- f/7)/ B1800 / Barlow 2X / DMK31AU03.AS

Athens, Greece

Monday, December 26, 2022

Solar Activity , December 26, 2022

AR13171 & 13169

LUNT- LS100THa PT (Single Stacked)-(D=102mm- F=714mm- f/7)/ B1800 / Barlow 2X / DMK31AU03.AS

Athens, Greece

Friday, June 3, 2022

Solar Activity May 12, 2022

LUNT- LS100THa PT (Single Stacked)-(D=102mm- F=714mm- f/7)/ B1800 / Barlow 2X / ZWO ASI 120MM & DMK31AU03.AS

Athens, Greece

Solar Activity May 11, 2022

LUNT- LS100THa PT (Single Stacked)-(D=102mm- F=714mm- f/7)/ B1800 / Barlow 2X / ZWO ASI 120MM

Athens, Greece

Thursday, June 2, 2022

Solar Activity , May 09, 2022

LUNT- LS100THa PT (Single Stacked)-(D=102mm- F=714mm- f/7)/ B1800 / Barlow 2X / ZWO ASI 120MM

Athens, Greece

Saturday, May 28, 2022

Solar Activity, April 28-May 01. 2022

LUNT- LS100THa PT (Single Stacked)-(D=102mm- F=714mm- f/7)/ B1800 / Barlow 2X / ZWO ASI 120MM

Athens, Greece

Solar Activity, April 27, 2022

LUNT- LS100THa PT (Single Stacked)-(D=102mm- F=714mm- f/7)/ B1800 / Barlow 2X / ZWO ASI 120MM

Athens, Greece

OUR STAR....

The star around which the Earth revolves, and the gravitational center of the Solar System; it lies about 270,000 times closer to us than the next nearest star. The Sun is a solitary, yellow dwarf star of spectral type G2 (see G star) that has been on the main sequence for about 4.6 billion years.

The Sun consists largely of hydrogen (71% by mass) and helium (27%), with much smaller amounts of heavier elements. It puts out 400 trillion trillion watts of energy, produced by the fusion of hydrogen to helium by the carbon-nitrogen cycle in its core. The Sun is 109 times wider than the Earth. It spins on its axis with a period that varies from 25 days at the equator to 33.5 days near the poles.

The visible surface, or photosphere, is surrounded by the chromosphere and, beyond this, the corona.

distance	149,597,900 km (92,975,699 mi., 8.3 light-minutes)
spectral type	G2V
diameter	1,392,000 km (865,000 mi.)
surface temperature	5,400ºC (9,800ºF)
central temperature	14 million ºC (25 million ºF)
mass (Earth = 1)	332,946
density (water = 1)	1.409
surface gravity (Earth =1 )	27.90
escape velocity	617.5 km/s (383.8 mi./s)
rotation period	25.38 days
apparent magnitude	-26.8
absolute magnitude	4.83