Nova ASASSN-16ma in Sagittarius

I was able to observe this nova (also designated as PNV J18205200-2822100) that discovered on October 25th in Sagittarius only a degree away from another nova, designated TCP J18102829-2729590, that was discovered on October 20th.

Both objects are very low in the sky from our latitudes and quite hard to observe. Observations has to be done even before the beginning of the astronomical night to catch the object above the horizon.

A picture of the nova position in the sky.

Nova Ophiuchus 2015

Another fairly bright Nova was discovered on 29. March 2015 when it was shinning at the unfiltered magnitude of +12.2.

Nova Ophiuchus 2015 at estimated magnitude of +11.4, 20. April 2015 02:55 UT. Nova’s position is indicated with the red cross in the image.
Equipment: Nikon D3000, Refractor 15cm, ISO1600, 25s
Nova Ophiuchus 2015 in colors. It’s orange/reddish color is clearly noticeable. Picture taken at the beginning of the nautical twilight thus the skies are brighter and bluer.

Nova Sagittarii 2015 No. 2

This is the brightest nova (that can be observed form mid-northern latitudes) in 2 years after Nova Delphini in August 2013.

Nova Sagittarii 2015 No. 2 easily visible with the naked eye at estimated magnitude of +4.9, 3. April 2015 ~03:10 UT
Equipment: Nikon D3000, Tamron 70-300 @ 70mm, f/4., ISO400, 20s

Nova was discovered on 15. of March, when its brightness was estimated to magnitude +6.0. After few days its magnitude peaked to about +4.4 and was easily observed by naked eye. The best time to observer this new bright star is just before the start of astronomical twilight, when the nova is at its highest position in a dark sky.

As the name may suggest, novae are not really new stars but an explosion on a star that was barely observable before the event. They occur in binary star systems where tiny white dwarf (but with very strong gravitational force at its surface) pulls gases from a close nearby companion star. With time accumulated material forms a thin layer on the hot surface of the white dwarf star. Gravity at the surface compacts and heats the material until it fuses and burns explosively to create the explosion called a nova.

Nova Delphini 2013

Nova Delphini 2013 shining at estimated magnitude of +6.7, 29. August 2013 at 20:30UT. The image shows constellations of Sagitta and Delphini which are near the nova indicated by the cross.
Equipment: Nikon D3000, Nikorr 18-55 @ 55mm, f/5.6, ISO1600, 8s

Bright new nova or “new star” was discovered on 14. August in the constellation of the Delphinus. At the time of the discovery it was shinning at the magnitude of the +6.8 and brightened to magnitude +4.4 in few days after it was first seen in the sky. This easily puts it in the reach of the binoculars and for the observers under sufficiently dark sky it is observable by naked eyes.