Saturday, March 2, 2019

More Deepsky Objects

I made some time to look at my pictures which I made during the night of Feb 23, 2019. Following objects were photographed :

IC434 : Horsehead Nebula and Flame Nebula; the Flame Nebula can be seen but the Horsehead Nebula is outshined.
M51 Whirlpool Nebula : the pictures are much better the before and came with a cherry ... a potential supernova (AT2019abn)
NGC 2169 : The "37" open star cluster; nice
NGC 2361 : The emission is very difficult to see; and it was not 2361 but 2261 I wanted to see :(
NGC 2301 : Open Star Cluster
NGC 2360 : Open Star Cluster; Caroline's Cluster
NGC 2392 : The Eskimo Nebula; colors are beautiful
NGC 2424 : Faint Spindle
NGC 2419 : Nice allignment with Globular Cluster
NGC 2683 : The UFO Galaxy









Messier M95 M96 and M105




A total of 7 galaxies captured in one picture. Galaxies M95, M96 and M105 are located a distance of more then 30 million light years from us and can be observed in the constellation Leo. M105 is surrounded bu NGC 3384 and NGC 3389. Pictures are taken with Nikon D7500 on TLAPO 80/480 f/6 and ISO 3200 setting. No moon and temperature around 2°C and relative humidity < 100%. Darks were taken and DeepSkyStacker to stack all pictures. Editing with CS4. 



Messier M40


Messier M40 or Winnecke 4 is an optical double star; no more no less. It stands out as the most odd object in Messier's list. When looking more in detail there are two background galaxies north of M40: NGC 4290 and NGC 4284.


Deepsky NGC4449 M63 M102 M106

Observation of some Deepsky objects on February 27, 2019. Condition with no Moon, temperature of 3°C and relative humidity below 100%.
All pictures taken with Nikon D7500 on TLAPO 80/480 f/6 and ISO1600. Converting RAW to DNG format in order to stack using DeepSkyStacker. Final editing with CS4.






Friday, March 1, 2019

Potential Supernova AT2019abn in M51


On Feb 23, 2019 I made some pictures of the Whirlpool Galaxy M51. Today I was reading of a potential Supernova in M51 so I went back and looked if I catched the nova... and yes it's there.
My picture was compared with pictures on the TNS (Transient Name Server of the IAU) - see this link and astronometry.
In order to get the best view of the potential supernova I inverted colors, but on both the inverted picture as the colored picture the nova can be seen.


Above my inverted picture (Nikon D7500 TAL200K f/8.5 ISO12800 18m) indicating the potential supernova AT2019abn (AT = Astronomical Transient) by the black cross in the "arms" of M51.

Post #1000


Started in December 2012 this is my post number "1000". 


Weaher Summary February 2019


Some local records are broken this past month :
* longest dry period of 18 days
* highest temperature of 22,3°C (including lowest dew point)
* highest pressure of 1044 mb

It was a rainy period in the beginning of the month (with avg normal rainfall over the entire month) and the second half was extreme dry and warm.