Sunspot data for 22 April 2021 of period 2021Q2: (PREV DAY - NEXT DAY)
| Sun210422_1050UTC_sketch.jpg | Sun210422_1116UTC.jpg |
|---|---|
 |  |
today we had a mixed clouds, mostly cumuli which, during the observation, was about 70%. Seeing was fair, I made the following observation:
Observation date/time: 22 April 2021 @ 10:50 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 (340mm distance, 80mm diameter)
Reference: Earth's rotation axis
===================================================================
Number of groups: 2
Group 1:
Number of sunspots: 4
Group 2:
Number of sunspots: 1
-------------------------------------------------------------------
Total number of sunspots: 5
| |
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