Hemisphere:  Southern  ·  Constellation: Virgo (Vir)  ·  Contains:  NGC 5426  ·  NGC 5427
ARP271 - Interacting Spirals, 



    
        

            Jason Guenzel
ARP271 - Interacting Spirals
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ARP271 - Interacting Spirals

Technical card

Imaging telescopes or lenses: CELESTRON EdgeHD 800

Imaging cameras: ZWO ASI1600MM-Cool

Mounts: Orion Atlas Pro AZ/EQ-G

Guiding telescopes or lenses: CELESTRON EdgeHD 800

Guiding cameras: ASI120MM

Focal reducers: Celestron 0.7x Focal Reducer

Software: Sequence Generator Pro  ·  PixInsight  ·  Adobe Photoshop

Filters: Astronomik Deep-Sky R 1.25"  ·  Astronomik Deep-Sky G 1.25"  ·  Astronomik Deep-Sky B 1.25"  ·  Astronomik L-3 UV-IR Block 1.25"  ·  Astronomik H-alpha 6nm CCD 1.25"

Accessory: Moonlite CHL 2.5" Large Format Crayford Edge Focuser  ·  Orion Thin Off-Axis Guider (TOAG)


Dates:March 17, 2019March 20, 2019April 28, 2019May 7, 2019May 8, 2019May 22, 2019May 23, 2019May 24, 2019May 26, 2019June 2, 2019June 3, 2019June 10, 2019June 22, 2019

Frames:
Astronomik Deep-Sky B 1.25": 25x127" (gain: 76.00) -20C bin 1x1
Astronomik Deep-Sky G 1.25": 25x120" (gain: 76.00) -20C bin 1x1
Astronomik Deep-Sky R 1.25": 27x120" (gain: 76.00) -20C bin 1x1
Astronomik H-alpha 6nm CCD 1.25": 56x240" (gain: 139.00) -20C bin 1x1
Astronomik L-3 UV-IR Block 1.25": 54x180" (gain: 0.00) -20C bin 1x1
Astronomik L-3 UV-IR Block 1.25": 179x90" (gain: 76.00) -20C bin 1x1

Integration: 13.5 hours

Darks: ~50

Flats: ~50

Bias: ~256

Avg. Moon age: 14.63 days

Avg. Moon phase: 50.44%

Bortle Dark-Sky Scale: 5.00


Basic astrometry details

Astrometry.net job: 2975099

RA center: 14h 3' 26"

DEC center: -6° 3' 0"

Pixel scale: 0.527 arcsec/pixel

Orientation: 270.803 degrees

Field radius: 0.235 degrees


Resolution: 2508x2006

Data source: Backyard

Description

Somewhere around 100 million light years away toward the constellation Virgo, this beautiful galaxy pairing lights up your night sky (faintly). The collection known as ARP271 consists of NGC5427, the larger face on spiral seen here on the right, and NGC5426 on the left.
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These two are currently in a galactic ballet, passing each other close enough to affect each other gravitationally. The subtle bending of the spiral arms can be seen, as well as, a bridge of stars strewn out into intergalactic space. What would the night sky look like from a planet around one of these stars, 😯?!
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If you haven’t guessed this is a challenging and tiny target, with a separation of only 2 arc-minutes!
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As always, enjoy, and let me know what you think in the comments

Comments

Revisions

    ARP271 - Interacting Spirals, 



    
        

            Jason Guenzel
    Original
  • Final
    ARP271 - Interacting Spirals, 



    
        

            Jason Guenzel
    B

B

Description: Tighter Crop on the Galactic Pair

Uploaded: ...

Sky plot

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ARP271 - Interacting Spirals, 



    
        

            Jason Guenzel