Sunday, May 17, 2020

Supernova SN2020jfo in Galaxy M61

A Supernova SN2020 jfo is found in Galaxy M61. This galaxy M61 is located in constellation Virgo and about 52 million light years away from Earth. Galaxy M61 part of the Virgo Cluster and is one of the largest members of the Cluster. 


The supernova SN2020 jfo is a type 2 nova. Type II supernovae like 2020jfo involve the sudden and violent collapse of a supergiant star when its nuclear fuel gas tank hits empty. With no heat and pressure in the core to battle back the crushing hand of gravity, the star implodes. The infall rebounds at the core, creating a shock wave of such ferocity that it rips through the star and blows it to bits in a titanic explosion 100 million times brighter than the Sun. No wonder we can see these things in our backyard telescopes (source Sky & Telescope)!


Picture was taken with Nikon D7500 and TAL200K f/8.5. Setting ISO6400 and 31x60s. Stacking with DeepSkyStacker and final editing in CS4.



Saturday, May 16, 2020

Sun in H-alpha

This morning the Sun in H-alpha and with some bright prominences. Picture taken afocal (10mm) with Nikon D7500 and SolarMax3 d70/400 f/5.7 DS BF15. Setting ISO100 and 1,3s exposure time. Editing using CS4.



Friday, May 15, 2020

Venus 12% Illuminated

This evening Venus is still very bright and shining after sunset. I made some pictures using my TAL200K f/8.5 telescoop with ZWO224MC camera and ADC (Atmospheric Dispersion Corrector). Pictures are stacked using Autostakkert! and final editing with CS4.


Sunday, May 3, 2020

Antennae Galaxies NGC 4038/4039

Reworking my picture from Antennae Galaxies NGC 4038/4039.


Antennae Galaxies NGC 4038/4039

Galaxies NGC 4038/4039 also know as the Antennae Galaxies are located in constellation Corvus and about 45 million lightyears away from Earth.

The Antennae Galaxies are an example of colliding galaxies. In better circumstances and longer exposure time it should be possible to see the antennae. Yesterday conditions were moderate with Moonlight (75%) and 100% relative humidity.

Setting: Nikon D7500 and TAL200K f/8.5; ISO 1600 and 21x60s exposure time. Stacking with DeepSkyStacker and final editing using CS4.


Galaxies NGC 4762 and NGC 4754 - Use of PAE

Both galaxies NGC 4762 and NGC 4754 are located in constellation Virgo and both are part of the Virgo Cluster. NGC 4762 is located at a distance of 60 million lightyears from Earth; NGC 4754 about 53 million light years.


Setting: Nikon D7500 and TAL200K f/8.5, ISO3200 and 46x60s exposure time. Stacking using DeepSkyStacker and final editing using CS4.

The equatorial mount and Synscan v4 was connected to my PC and Stellarium software. After 3 star allignment the mount was set to a nearby star and again corrected via PAE, Point Accurancy Enhancement.  The nearby star was centered and via menu Utililty, PAE corrected. This was a great help to located the galaxies.