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Contains:  California nebula, NGC 1499, The star ξPer
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An Asteroid near California (516 Amherstia near NGC1499), 





    
        

            Kees Scherer
An Asteroid near California (516 Amherstia near NGC1499)

An Asteroid near California (516 Amherstia near NGC1499)

Technical card

Resolution: 5476x4268

Dates:Sept. 14, 2017Jan. 1, 2019

Frames:
B: 22x120" (gain: 1.00) -20C bin 1x1
G: 23x120" (gain: 1.00) -20C bin 1x1
Baader Ha 6nm: 12x900" (gain: 1.00) -20C bin 1x1
R: 24x120" (gain: 1.00) -20C bin 1x1

Integration: 5.3 hours

Darks: ~40

Flats: ~25

Bias: ~256

Avg. Moon age: 24.36 days

Avg. Moon phase: 27.75%

Mean SQM: 20.80

Astrometry.net job: 2444583

RA center: 59.805 degrees

DEC center: 36.288 degrees

Pixel scale: 2.205 arcsec/pixel

Orientation: 0.361 degrees

Field radius: 2.127 degrees

Locations: Knight Observatory,Quinta Castelo Novo, Serra de Tomar, Portugal

Data source: Backyard

Description

This is a 2-panel mozaic.

516 Amherstia showed up as a red-green-blue line in the integration of 120second RGB subs made on 01-01-2019 between 19:00 and 20:30 UTC, see annotation upper-right.
The RGB subs for panel 1 are made on 31 dec 2018. The Ha subs where made on sept 12 and 14, 2017.

Comments

Author

keesscherer
Kees Scherer
License: Attribution Creative Commons
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An Asteroid near California (516 Amherstia near NGC1499), 





    
        

            Kees Scherer

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Deep Sky Mosaics