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Contains:  NGC 4039, Antennae, NGC 4038

Image of the day 05/12/2018

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The Antennae Galaxies, 


            Terry Robison
The Antennae Galaxies

The Antennae Galaxies

Technical card

Resolution: 2818x1822

Dates:May 7, 2018

Frames: 107x900"

Integration: 26.8 hours

Avg. Moon age: 21.62 days

Avg. Moon phase: 55.60% job: 2048914

RA center: 180.471 degrees

DEC center: -18.884 degrees

Pixel scale: 0.803 arcsec/pixel

Orientation: 33.578 degrees

Field radius: 0.374 degrees


The Antennae Galaxies are one of the youngest examples of colliding galaxies, as well as one of the nearest pairs of interacting galaxies to Earth. They are located in the constellation of Corus around 45 million light years away.
NGC 4038 and NGC 4039 were two separate galaxies some 1.2 billion years ago. The larger was a spiral galaxy, NGC 4039. The smaller galaxy was a barred spiral, NGC 4038.

About 600 million years ago, NGC 4038 and NGC 4039 passed through each other. At some point, they would have resembled the Mice Galaxies. Around 300 million years ago, the Antennae’s stars began to be released from both galaxies. These gravitational interactions have resulted in the long tails forming an antenna shape. Within the tails or streamers, areas of starburst activity exist.

Perhaps in the future, when our galaxy the Milky Way and the Andromeda galaxies come together, they may look similar to the Antennae during at least one point of their gravitational interaction.

Exposure Details:
Lum 41X900
Red 24X450
Green 24X450
Blue 36X450
Ha 13X1800
Total time 26.75 hours

Instruments Used:
10 Inch RCOS fl 9.1
Astro Physics AP-900 Mount
SBIG STL 11000m
FLI Filter Wheel
Astrodon Lum, Red, Green, Blue Filters
Baader Planetarium H-alpha 7nm Narrowband-Filter



Terry Robison
License: None (All rights reserved)

Sky plot

Sky plot


The Antennae Galaxies, 


            Terry Robison