Hemisphere:  Northern  ·  Constellation: Coma Berenices (Com)  ·  Contains:  NGC 4651  ·  Umbrella Galaxy
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NGC 4651 - The Umbrella Galaxy, 



    
        

            James E.
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NGC 4651 - The Umbrella Galaxy

Getting plate-solving status, please wait...
NGC 4651 - The Umbrella Galaxy, 



    
        

            James E.
Powered byPixInsight

NGC 4651 - The Umbrella Galaxy

Technical card

Imaging telescopes or lenses: Celestron 11" Edge HD

Imaging cameras: ZWO ASI 2600MM Pro

Mounts: SkyWatcher EQ8-R Pro

Guiding cameras: ZWO ASI174MM mini

Focal reducers: Celestron 0.7x EdgeHD 1100 Reducer

Software: PixInsight 1.8.8  ·  Photoshop CC  ·  PHD2 Guiding v2.9 dev  ·  Astro Pixel Processor  ·  Sequence Generator Pro

Filters: Astrodon Gen 2 E-Series 36mm Lum  ·  Astrodon Gen 2 E-Series 36mm Blue  ·  Astrodon Gen 2 E-Series 36mm Green  ·  Astrodon Gen 2 E-Series 36mm Red

Accessory: ZWO EFW  ·  Celestron Off-Axis Guider  ·  MoonLite 2.5 inch Crayford EDGE Focuser  ·  MoonLite High Res Stepper Focuser


Dates:March 3, 2021March 10, 2021March 14, 2021

Frames:
Astrodon Gen 2 E-Series 36mm Blue: 21x180" (1h 3') (gain: 100.00) -10C bin 1x1
Astrodon Gen 2 E-Series 36mm Green: 22x180" (1h 6') (gain: 100.00) -10C bin 1x1
Astrodon Gen 2 E-Series 36mm Lum: 222x180" (11h 6') (gain: 100.00) -10C bin 1x1
Astrodon Gen 2 E-Series 36mm Red: 27x180" (1h 21') (gain: 100.00) -10C bin 1x1

Integration: 14h 36'

Darks: 25

Flats: 25

Flat darks: 25

Avg. Moon age: 15.68 days

Avg. Moon phase: 29.30%

Bortle Dark-Sky Scale: 4.00


RA center: 12h43m50s.469

DEC center: +16°2411.83

Pixel scale: 0.406 arcsec/pixel

Orientation: 90.722 degrees

Field radius: 0.317 degrees

More info:Open 


Resolution: 4651x3164

Locations: DogStar Observatory, Lovettsville, VA, United States

Data source: Backyard

Description

NGC 4651 (The Umbrella Galaxy, also Arp 189) is a spiral galaxy some 62 million light years away in Coma Berenices. About the size of the Milky Way, it has a faint umbrella-shaped structure that extends to the east some 100,000 light years beyond the galactic disk. It is composed of tidal star streams - remnants of a much smaller galaxy that has been torn apart by NGC 4651's tidal forces. It is included in Halton Arp's catalog as Arp 189 - "galaxy with filaments." Unlike most spiral galaxies of the Virgo Cluster, NGC 4651 is rich in neutral hydrogen. (Wikipedia, APOD 2014)

Taken over several nights: March 4, 6-8, 10 and 14-15, 2021.

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