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Contains:  IC 1805
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Melotte 15 Environs, HOO, 


            Stephen Garretson
Melotte 15 Environs, HOO

Melotte 15 Environs, HOO

Technical card

Resolution: 2756x1946

Dates:Feb. 23, 2019Feb. 26, 2019Feb. 28, 2019March 7, 2019

Baader 3.5nm Ha filter, 2": 21x600" -30C bin 1x1
Baader 8.5nm OIII filter, 2": 16x600" -30C bin 1x1

Integration: 6.2 hours

Darks: ~15

Flats: ~40

Flat darks: ~15

Avg. Moon age: 16.51 days

Avg. Moon phase: 40.35%

Bortle Dark-Sky Scale: 6.00 job: 2573949

RA center: 38.553 degrees

DEC center: 61.445 degrees

Pixel scale: 1.050 arcsec/pixel

Orientation: 180.926 degrees

Field radius: 0.492 degrees

Locations: Beevo Dome [home observatory], Louisville, CO, United States

Data source: Backyard


Clouds cleared last night, though seeing did not seem so great. But I was able to get some OIII on this target, enough to attempt an HOO version. Next clear night I'l grab SII for the SHO rendering. Not thrilled with the OIII data.



Stephen Garretson
License: None (All rights reserved)

Sky plot

Sky plot


Melotte 15 Environs, HOO, 


            Stephen Garretson