unknownskywalker: Sun’s Active Region Paul Andrew captured this photo of the Sun’s active region on September 3rd, 2011. The Sun’s active region is an area on the Sun where there is intense magnetic field. Sunspots usually form in active regions where it also host related phenomena such as solar flare and solar prominence which can also be seen in the photo above. Taken in Ha light with a DMK41AU02.AS camera and a single stacked Lunt LS60T, it comprises of two separate exposures (one for the prominence and one for the detail of the solar surface).
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unknownskywalker:

Sun’s Active Region

Paul Andrew captured this photo of the Sun’s active region on September 3rd, 2011.

The Sun’s active region is an area on the Sun where there is intense magnetic field. Sunspots usually form in active regions where it also host related phenomena such as solar flare and solar prominence which can also be seen in the photo above.

Taken in Ha light with a DMK41AU02.AS camera and a single stacked Lunt LS60T, it comprises of two separate exposures (one for the prominence and one for the detail of the solar surface).

(via zuisidle)

Source: universetoday.com

ratak-monodosico: socialentraNGC 1999 is a dust filled bright nebula with a vast hole of empty space represented by a black patch of sky, as can be seen in the photograph. It is a reflection nebula, and shines from the light of the variable star V380 Orionis. It was previously believed that the black patch was a dense cloud of dust and gas which blocked light that would normally pass through, called a dark nebula. Analysis of this patch by the infrared telescopeHerschel (October 9, 2009), which has the capability of penetrating such dense cloud material, resulted in continued black space. This led to the belief that either the cloud material was immensely dense or that an unexplained phenomenon had been detected.
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ratak-monodosico:

socialentraNGC 1999 is a dust filled bright nebula with a vast hole of empty space represented by a black patch of sky, as can be seen in the photograph. It is a reflection nebula, and shines from the light of the variable star V380 Orionis.

It was previously believed that the black patch was a dense cloud of dust and gas which blocked light that would normally pass through, called a dark nebula. Analysis of this patch by the infrared telescopeHerschel (October 9, 2009), which has the capability of penetrating such dense cloud material, resulted in continued black space. This led to the belief that either the cloud material was immensely dense or that an unexplained phenomenon had been detected.

Source: samanthorium

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