Wednesday, April 22, 2020

Galaxy M83

Galaxy Messier M83 is located in constellation Hydra and about 15 million lightyears away from Earth. It's very difficult to see as the galaxy is  maximum 9° above the horizon. Observation was made "between " the tree with very limited exposure time. So the result is poor and a dissapointment.
Picture made with Nikon D7500 an TAL200K f/8.5 : setting ISO 3200 and 8x60s exposure time.


Lyrid Meteor Shower April 21-22, 2020


Observation of Lyrid Meteor Shower April 21-22, 2020. Clear sky, moonless and max magnitude with naked eye 5.25-5.4
A total of 21 meteors are observed after midnight (UT22h) and before 4h30 (UT2h30).


Whirlpool Galaxy M51 with TAL200K

A real clearsky and no moon and for the first time I tried to calibrate the darkness. I used some reference stars in constellation Ursa Major and Bootes. Based on this I conclude that the maximum magnitude seen with the naked eye was about 5.25-5.5 Magnitude.

Under these circumstances I made two sessions of M51, Whirlpool Galaxy. One with ISO3200 (90s) and one with ISO6400 (60s). All pictures made with Nikon D7500 and TAL200K f/8.5. The mount was connected with Stellarium and camera controlled by DigiCamControl.
Raw pictures converted to DNG and stacked using DeepSkyStacker. Final editing with CS4.


Hercules Globular Cluster M13


Messier M13, Hercules Globular Cluster, photographed with Nikon D7500 and TAL200K f/8.5 and setting ISO6400 and 12x60s. Raw pictures converted to DNG and stacked using DeepSkyStacker. Final editing with CS4.


Tuesday, April 21, 2020

Comet C/2019 Y4 with TAL200K


Comet C/2019 Y4 yesterday evening April 20, 2020. Picture taken with Nikon D7500 and TAL200K f/8.5 with setting : ISO 6400, 11x60s exposure time. Raw pictures converted to DNG and stacking using DeepSkyStacker. Stacking was done with comet option.


Lyrid Meteor Shower this night.

It will be a clear sky and thus perfect to watch Lyrid Meteors. The best moment is to wait untill after midnight, wednesday morning. Nights are still dark and it's possible to see 15 meteors/hour.
Good luck :)

Whirlpool Galaxy M51


A combination of two sessions : session of April 21 and April 10 2020. Total exposure 51min. Picture taken with Nikon D7500 and TAL200K f/8.5. DeepSkyStacker was used to stack the pictures and CS4 for final editing.