Getting plate-solving status, please wait...
NGC 4490 & 4485 (ARP269) - Cocoon Galaxy, 





    
        

            Łukasz Sujka

NGC 4490 & 4485 (ARP269) - Cocoon Galaxy

Technical card

Resolution: 1587x1014

Dates: April 19, 2018

Frames:
Baader B 1.25": 200x7" (gain: 0.84) -20C bin 1x1
Baader G 1.25": 200x7" (gain: 0.84) -20C bin 1x1
Baader L 1,25": 500x5" (gain: 0.80) -20C bin 1x1
Baader R 1.25" Baader R 1,25": 200x7" (gain: 0.84) -20C bin 1x1

Integration: 1.9 hours

Darks: ~100

Avg. Moon age: 3.68 days

Avg. Moon phase: 14.56%

Bortle Dark-Sky Scale: 4.00

Temperature: 12.00

Astrometry.net job: 2026897

Locations: Home Observatory, Budy Dłutowskie , Pabianice, Poland

Data source: Unknown

Description

Today I want to present you very interesting object - The Cocoon Galaxy - NGC 4490 (larger) and NGC 4485 (smaller).
NGC4490 is barred spiral galaxy distorted by a close meeting with smaller galaxy NGC 4495.
Their close meeting began very intense star forming processes in both galaxies and also in the "bridge" connecting both objects.

The Galaxy has quite big surface brightness and with apparent magnitude 9,5 mag and the position near the zenith, makes it an excellent object for short-exposure astrophotography

NGC 4490 and NGC 4485 are collectively known in the Atlas of Peculiar Galaxies as Arp 269
We'll find it in the constellation of Canes Venatici

Exposition and setup:

L- 500 x 5 seconds
RGB- 200 x 7 seconds per channel
Composition LRGB
Newton 250/1250 on NEQ-6 + ASI 178 MM-C + Baader LRGB
Scale - 0,41 '' / pix

Comments

Author

Lukasz83
Łukasz Sujka
License: None (All rights reserved)
2845
Like

Revisions

  • NGC 4490 & 4485 (ARP269) - Cocoon Galaxy, 





    
        

            Łukasz Sujka
    Original
  • NGC 4490 & 4485 (ARP269) - Cocoon Galaxy, 





    
        

            Łukasz Sujka
    B
  • NGC 4490 & 4485 (ARP269) - Cocoon Galaxy, 





    
        

            Łukasz Sujka
    C
  • Final
    NGC 4490 & 4485 (ARP269) - Cocoon Galaxy, 





    
        

            Łukasz Sujka
    D

B

less blue in the background

C

different orientation

D

color balance improvement

Histogram

NGC 4490 & 4485 (ARP269) - Cocoon Galaxy, 





    
        

            Łukasz Sujka