NGC 4565 – The Needle Galaxy
I photographed the Needle Galaxy 5 years apart (2016-2021). The first image was captured using an 80mm refractor (480mm) and the second, an 11″ SCT (1960mm).
Photographing NGC 4565 with triple the focal length (magnification) allowed me to capture this galaxy in detail.
The Needle Galaxy is one of my favorite galaxy season astrophotography targets and shows up well even in small refractor telescopes.
I photographed the Needle Galaxy in 2021 using a Celestron Edge HD 11 telescope and a ZWO ASI2600MM Pro monochrome camera. The following video provides an inside look at the process of capturing this galaxy from a light-polluted backyard in the city.
My final image includes exactly 4 hours of total exposure time. I collected 20 x 3-minute images through each LRGB filter using a ZWO EFW.
The images were stacked (each filter separately) in DeepSkyStacker using dark frames to calibrate the images. Adobe Photoshop was used to process the final image, with an emphasis on color balance and clarity of the galactic disc.
The Needle Galaxy. LRGB image captured by Trevor Jones.
Photographing the Needle Galaxy in 2016
The following article outlines my experiences capturing the Needle Galaxy with my 80mm refractor telescope and DSLR camera.
NGC 4565 – The Needle Galaxy
Photographed on: April 10, April 29. 2016
Total Exposure Time: 2 Hours, 31 Minutes (43 x 3 Min & 4 Min Subs @ ISO 1600)
Mount: Sky-Watcher HEQ-5 Pro
Camera: Canon 450D (modified)
Telescope: Explore Scientific ED80 Triplet Apo
Guided with PHD Guiding
Stacked in DeepSkyStacker
Processed in Adobe Photoshop CC
The early Spring temperatures helped keep my camera cool when photographing the Needle Galaxy. Spring is a great season for astrophotography because of the long nights and mild temperatures. It’s cool enough to keep your DSLR sensor at a reasonable temperature, but not cold enough to numb your fingers while outside!
Image Processing Technique
For this image of the Needle Galaxy, importance was given to star reduction and color. Using the Astronomy Tools Action Set, several iterations of the “make stars smaller” action were applied, with a mask on the galaxy itself.
The reason I mask the galaxy when applying this filter is to make sure that the brightness or detail of the DSO is not lost in the process.
I also used the gradient removal technique, as shown in my Photoshop tutorial. This was especially effective at removing the wavy color variations in the background sky color.
Widefield photos of galaxies like this can really showcase the imperfections in your background sky.
Finally, a selective amount of the “less crunchy, more fuzzy” action was applied to only the brightest stars in the image. This is a great technique for giving the image more depth.
Needle Galaxy with an 80mm telescope
I photographed the Needle Galaxy over 2 nights in April 2016 from my light-polluted backyard. The small apparent size of NGC 4565 in my 80mm refractor telescope made this a challenging photography subject for me.
Larger instruments such as an 8″ SCT would be much better suited for capturing a galaxy of this size.
The Needle Galaxy is about the same size as the Whirlpool Galaxy, although it is on its side. This is about as small a galaxy as I can realistically photograph with my 80mm telescope.
I just couldn’t resist pulling out more color and details from this striking little edge-on spiral galaxy.
NGC 4565 – Located in Coma Berenices
Here is a version of my image from the initial 1 hour of data captured on April 10th for reference. The difference is subtle, but you can now see more of the small surrounding galaxies in the area.
Video: Deep-Sky Astrophotography
I filmed a video on my Youtube Channel documenting my night in the backyard shooting the Needle Galaxy.
I also dive into some aspects of my viewing area, and the amount of light pollution and trees my backyard sky suffers from.
On this night, there also happened to be a beautiful, thin, waxing crescent moon setting in the evening before my imaging session.
I set up my Camera 70D for some live-view moon photography, that is captured in the video. I hope you enjoy this peek into my backyard astrophotography adventures!