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Contains:  NGC 884, Double cluster, NGC 869, The star 7Per
Getting plate-solving status, please wait...
20160227 C14 - Reprocessed, 





    
        

            Mike Pusatera
20160227 C14 - Reprocessed

20160227 C14 - Reprocessed

Technical card

Resolution: 3098x2248

Dates:Feb. 22, 2016Feb. 25, 2016

Frames:
Baader Planetarium B 36mm: 8x300" -20C bin 2x2
Baader Planetarium G 36mm: 8x300" -20C bin 2x2
Baader Planetarium L 36mm: 12x600" -20C bin 1x1
Baader Planetarium R 36mm: 8x300" -20C bin 2x2

Integration: 4.0 hours

Darks: ~15

Flats: ~20

Bias: ~15

Avg. Moon age: 15.89 days

Avg. Moon phase: 96.53%

Bortle Dark-Sky Scale: 5.00

Astrometry.net job: 1128137

RA center: 35.177 degrees

DEC center: 57.108 degrees

Pixel scale: 2.041 arcsec/pixel

Orientation: 179.524 degrees

Field radius: 1.085 degrees

Locations: Home, Lake St Louis, Missouri (MO), United States

Description

C14 - the Double Cluster is a highlight in Perseus near Cassiopeia. Containing both the NGC869 and NGC884 open clusters, it was discovered as early as 130 B.C by Hipparchus. First catalogued in the early 1800's, William Herschel identified the clusters as separate objects. It is located approximately 7500 light years away.

Acquisition:
Imaged on 2/22/16 and 2/27/16 from Lake St Louis, MO
Integration: 4 hours (LRGB)
Luminance: 12x600s @ 1x1 (120')
R/G/B: 8/8/8 x 300s @ 2x2 (40'/40'/40')
Equipment
Scope: William Optics GTF 81 5 element refractor (535mm focal length)
Upgraded with Moonlite CF focuser with motor
Imager: QHY9Ms with Olivon OAG and QHYCFW2-s filter wheel
Guidecam: ASI120MM
Filters: Baader LRGB
Mount: Orion Atlas EQ-G
Processing and Software
Guiding with PHD2
Acquisition with Sequence Generator Pro
Integration and processing with PixInsight 1.8

C14 - The Double Cluster: https://flic.kr/p/Jhceke
Annotated image: https://flic.kr/p/JnMjF1

‪#‎DoubleCluster‬ ‪#‎C14‬ ‪#‎NGC884‬ ‪#‎NGC869‬ ‪#‎Cluster‬ ‪#‎Space‬ ‪#‎Astronomy‬ ‪#‎Astrophotography‬

Comments

Author

mpusatera
Mike Pusatera
License: None (All rights reserved)
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20160227 C14 - Reprocessed, 





    
        

            Mike Pusatera