Sunspot data for 21 March 2022 of period 2022Q1: (PREV DAY - NEXT DAY)

Sun220321_1000UTC_sketch.jpgSun220321_1004UTC.jpg


Today we had clear skies again. Transparency was reasonable, seeing was reported reasonable as well by the scintillation monitor. I made the following observation: 
Observation date/time:   21 March 10:00 UTC
Telescope:               GTT60 (Galileo Type Telescope)
Focal length:            1490mm (plano convex singlet)
Aperture:                60mm
Stop:                    30mm
Eyepiece:                -75mm (plano concave singlet, 24mm aperture)
Observation type:        projection (343mm distance, 80mm diameter)
Reference:               Earth's rotation axis
Exposure (transparency): 0.200ms
Seeing (SSSMon):         2.5-3.0"

===================================================================
Total number of sunspots:   5

PREV DAY - NEXT DAY

Home Geodesy Navigation Astronomy Literature
InFINNity Deck... Astrophotography... Astro-Software... Astro Reach-out... Equipment... White papers...
Deep Sky... Solar system (Main)... Solar System (Asteroids)... Solar System (Meteors)... Solar System (Comets)... Man-made objects...
Sun Mercury Venus Moon Mars Jupiter Saturn Uranus Aurora Borealis