File Name : Sunspots

Location : Baia Mare , Romania

Date : 18/09/2011 Time: 09:08:32

Telescope : Celestron 8" Newtonian reflector

Eyepiece : No eyepiece

Camera: Nikon D80

Exposure time : 1 / 2000 sec Manual

Max Aperture : F1

ISO : 1000

Edit: FastStone viewer

Date : 18/09/2011 Time: 09:07:32

Exposure time : 1 / 800 sec manual

ISO : 1000

Edit: FastStone viewer

The three photos above are edited differently , the latter being the original . At first photo I worked with the levels , curves and sharp ( sharpness) and the on the second I dropped gamma and increased sharp .

Date : 18/09/2011 Time: 09:04:58

Exposure time : 1 / 250 sec manual

ISO : 400

Edit: FastStone viewer

Date : 18/09/2011 Time: 09:04:34

Exposure time : 1 / 50 sec manual

ISO : 400

Edit: FastStone image viewer

Date : 18/09/2011 Time: 09:04:04

Exposure time : 1 / 20 sec manual

ISO : 400

Edit: FastStone viewer









File Name : Suns pots

Location : Baia Mare , Romania

Date : 18/09/2011 Time: 09:02:32

Telescope : Celestron 8 " Newtonian reflector

Eyepiece : 10mm Hiperyon

Camera: Nikon D80

Exposure time : 1 / 20 sec manual

Max Aperture : F1

ISO : 400

Edit: FastStone viewer

Date : 18/09/2011 Time: 09:01:52

Exposure time : 1 / 20 sec manual

Max Aperture : F1

ISO : 400

Edit: FastStone image viewer

Date : 18/09/2011 Time: 09:00:16

Exposure time : 1 / 25 sec manual

Max Aperture : F1

ISO : 400

Edit: FastStone image viewer

Date : 18/09/2011 Time: 08:55:52

Exposure time : 1 / 60 second hand

Max Aperture : F1

ISO : 500

Edit: FastStone viewer

Date : 18/09/2011 Time: 09:02:16

Exposure time : 1 / 20 sec manual

Max Aperture : F1

ISO : 400

Edit: FastStone viewer

Sunspots are a

temporary

phenomena

on

the Sun

photosphere

that appear as

dark spots

visible

in

comparison

with

surrounding

regions

They

are caused by

intense

magnetic

activity

which

inhibits

convection

through an effect

comparable to

current

brake

areas

of

reduced

temperature

Like a

magnet,

they

were

also have

the two poles

Although

temperatures of

about

3000-4500

K

(2727-4227

° C

in

ontrast with

the

surrounding

material

that

is about

5780

K

clearly visible

as

dark spots

Sunspots

expands

and contracts

while

moving

on the Sun

and

can

a diameter of

80,000 km

visible

from Earth

without a

telescope.

Sunspots

can travel

at speeds of

several hundred

m

/

s.

Related Posts : Gallery-DSLR, Sunspots, The Sun

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