Hemisphere:  Southern  ·  Constellation: Corvus (Crv)  ·  Contains:  Antennae  ·  NGC 4038  ·  NGC 4039
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The  Antennae Galaxies, NGC 4038 and 4039 (Caldwell 60 and 61), 



    
        

            Steven Bellavia
The  Antennae Galaxies, NGC 4038 and 4039 (Caldwell 60 and 61)
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The Antennae Galaxies, NGC 4038 and 4039 (Caldwell 60 and 61)

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The  Antennae Galaxies, NGC 4038 and 4039 (Caldwell 60 and 61), 



    
        

            Steven Bellavia
The  Antennae Galaxies, NGC 4038 and 4039 (Caldwell 60 and 61)
Powered byPixInsight

The Antennae Galaxies, NGC 4038 and 4039 (Caldwell 60 and 61)

Technical card

Imaging telescopes or lenses: Borg 90FL

Imaging cameras: ZWO ASI 183MM Pro

Mounts: Celestron AVX Mount

Guiding telescopes or lenses: Agena Astro 50mm f/3.9 Guidescope

Guiding cameras: ASI224MC

Software: Pleiades Astrophoto PixInsight  ·  IDEIKI AstroPhotography Tool (APT)  ·  Stark Labs Nebulosity 4.2  ·  Digital Photo Professional  ·  Annie's Astro Actions V7  ·  Noel Carboni's Astro Tools for PhotoShop Noel Carboni Actions  ·  PHD2 Guiding

Filters: L  ·  R  ·  B  ·  G

Accessory: Borg 1.08X DG Multi-Flattener, #7108


Dates:April 1, 2019

Frames:
B: 16x120" (32') (gain: 100.00) -15C bin 2x2
G: 15x120" (30') (gain: 100.00) -15C bin 2x2
L: 29x120" (58') (gain: 100.00) -15C bin 2x2
R: 17x120" (34') (gain: 100.00) -15C bin 2x2

Integration: 2h 34'

Darks: ~25

Flats: ~30

Flat darks: ~30

Avg. Moon age: 26.01 days

Avg. Moon phase: 13.39%

Bortle Dark-Sky Scale: 4.00

Mean SQM: 21.20

Mean FWHM: 3.50


Basic astrometry details

Astrometry.net job: 2649432

RA center: 12h 1' 51"

DEC center: -18° 53' 16"

Pixel scale: 0.901 arcsec/pixel

Orientation: 184.510 degrees

Field radius: 0.541 degrees


Resolution: 3600x2400

Data source: Traveller

Description

The Antennae Galaxies, NGC 4038/NGC 4039, (PGC 37967 / 37969, Caldwell 60/61) are a pair of interacting galaxies in the constellation Corvus. They are currently going through a starburst phase, in which the collision of clouds of gas and dust, with entangled magnetic fields, causes rapid star formation. They were discovered by William Herschel in 1785.
I am a little surprised that Sir Patrick Moore gave up two of his 110 Caldwell numbers for this object. I really think this close pair could have been assigned just one Caldwell number, and he could of used the other number for objects like NGC 2903 or the Tiger's Eye galaxy, NGC 2841, especially since I think these objects are easier to see in an amateur telescope than the antennae galaxies.

Comments

Revisions

  • The  Antennae Galaxies, NGC 4038 and 4039 (Caldwell 60 and 61), 



    
        

            Steven Bellavia
    Original
  • Final
    The  Antennae Galaxies, NGC 4038 and 4039 (Caldwell 60 and 61), 



    
        

            Steven Bellavia
    J

Sky plot

Sky plot

Histogram

The  Antennae Galaxies, NGC 4038 and 4039 (Caldwell 60 and 61), 



    
        

            Steven Bellavia