Hemisphere:  Northern  ·  Constellation: Cancer (Cnc)  ·  Contains:  38 Cnc  ·  39 Cnc  ·  40 Cnc  ·  41 eps Cnc  ·  42 Cnc  ·  Beehive  ·  Beehive cluster  ·  IC2388  ·  IC2390  ·  M 44  ·  M44  ·  NGC 2632  ·  NGC2624  ·  NGC2625  ·  NGC2637  ·  NGC2643  ·  NGC2647  ·  Praesepe  ·  Praesepe Cluster
Getting plate-solving status, please wait...
M44 - Praesepe (Beehive Cluster), 



    
        

            Kurt Zeppetello
Powered byPixInsight

M44 - Praesepe (Beehive Cluster)

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)
Getting plate-solving status, please wait...
M44 - Praesepe (Beehive Cluster), 



    
        

            Kurt Zeppetello
Powered byPixInsight

M44 - Praesepe (Beehive Cluster)

Acquisition type: Electronically-Assisted Astronomy (EAA, e.g. based on a live video feed)

Imaging telescopes or lenses: Astro-Tech AT115EDT f/7

Imaging cameras: ZWO ASI 1600MM-Cool

Mounts: Orion Sirius EQ-G (HEQ5)

Guiding telescopes or lenses: ZWO 60mm Guidescope

Guiding cameras: ZWO Optical ASI120MM MINI

Focal reducers: Astro-Tech 0.8x reducer/field flattener

Software: Adobe photoshop  ·  Pleiades Astrophoto PixInsight  ·  Topaz DeNoise AI  ·  Nighttime Imaging 'N' Astronomy  ·  AstroPhotography Tools APT capture software  ·  Astronomy Tools - PS  ·  PHD Guiding

Filters: ZWO R 1.25" optimized for ASI1600  ·  ZWO B 1.25" optimized for ASI1600  ·  ZWO G 1.25" optimized for ASI1600  ·  ZWO L 1.25" optimized for ASI1600

Accessory: ZWO EAF Electronic Focuser  ·  ZWO 8x 1.25" Filter Wheel (EFW)


Dates:March 29, 2021March 30, 2021April 3, 2021April 6, 2021

Frames:
ZWO B 1.25" optimized for ASI1600: 96x60" (1h 36') (gain: 139.00) bin 1x1
ZWO G 1.25" optimized for ASI1600: 91x60" (1h 31') (gain: 139.00) bin 1x1
ZWO L 1.25" optimized for ASI1600: 168x60" (2h 48') (gain: 139.00) -10C bin 1x1
ZWO R 1.25" optimized for ASI1600: 94x60" (1h 34') (gain: 139.00) bin 1x1

Integration: 7h 29'

Darks: ~20

Flats: ~20

Bias: ~20

Avg. Moon age: 19.43 days

Avg. Moon phase: 70.90%

Bortle Dark-Sky Scale: 5.00

Temperature: 7.00


Astrometry.net job: 4397457

RA center: 8h 40' 23"

DEC center: +19° 38' 30"

Pixel scale: 1.206 arcsec/pixel

Orientation: -11.618 degrees

Field radius: 0.951 degrees


Resolution: 4557x3394

Data source: Backyard

Description

M44 is an open star cluster in the constellation Cancer approximately 610 light-years from our sun. As one of the closest star clusters to Earth it has been recognized since Roman times. It is relatively young, like most open clusters, at 600 million years and spans about 15 light-years with about 1000 stars. Its location in the night sky at halfway between Gemini and Leo makes it a very popular object for astrophotographers in the Northern hemisphere during spring time. The large yellow red-giants make a pleasant contrast to the more abundant brighter hot blue main sequence stars. Also scattered in this image are very tiny galaxies which if you look closely can detect. One such galaxy, PGC24400, is located in the lower central portion of the image and there are at least five others scattered throughout.

I really like clusters but you would never know it since I rarely do them. In fact I have only done this once before over five years ago - this image is far superior to that image.

Link

So I did not originally intend on doing 7.5 hours for this cluster but am glad I did. The moon was out for part of it and I was also doing other objects which were not up yet so it was very convenient.

https://https://www.instagram.com/astroquest1/

http://astroquest1.blogspot.com/

https://www.astrobin.com/users/kurtzepp/collections/

http://youtube.com/c/AstroQuest1

Comments

Sky plot

Sky plot

Histogram

M44 - Praesepe (Beehive Cluster), 



    
        

            Kurt Zeppetello