Hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  NGC 6440
LDN 235, NGC 6440, NGC 6445 (Little Gem Nebula), 



    
        

            Chris Ryan
LDN 235, NGC 6440, NGC 6445 (Little Gem Nebula)
Powered byPixInsight

LDN 235, NGC 6440, NGC 6445 (Little Gem Nebula)

LDN 235, NGC 6440, NGC 6445 (Little Gem Nebula), 



    
        

            Chris Ryan
LDN 235, NGC 6440, NGC 6445 (Little Gem Nebula)
Powered byPixInsight

LDN 235, NGC 6440, NGC 6445 (Little Gem Nebula)

Equipment

Imaging Telescopes Or Lenses
Sharpstar Optics 107 PH
Imaging Cameras
ZWO ASI 1600mm-c
Mounts
iOptron CEM120EC2
Filters
Baader 36mm B · Baader 36mm G · Baader 36mm R · Baader 36mm L
Accessories
OAG · Sharpsky Pro Focus Controller
Software
PixInsight · Voyager
Guiding Telescopes Or Lenses
Sharpstar Optics 107 PH
Guiding Cameras
ZWO ASI 174MM

Acquisition details

Dates:
July 15, 2020 ·  July 16, 2020
Frames:
Baader 36mm B: 67x60" (1h 7') (gain: 75.00) -15C bin 1x1
Baader 36mm G: 68x60" (1h 8') (gain: 75.00) -15C bin 1x1
Baader 36mm L: 204x60" (3h 24') (gain: 75.00) -15C bin 1x1
Baader 36mm R: 68x60" (1h 8') (gain: 75.00) -15C bin 1x1
Integration:
6h 47'
Avg. Moon age:
24.87 days
Avg. Moon phase:
22.74%

Basic astrometry details

Astrometry.net job: 3692375

RA center: 17h46m30s.2

DEC center: -20°1058

Pixel scale: 0.937 arcsec/pixel

Orientation: 13.069 degrees

Field radius: 0.912 degrees

Resolution: 5587x4224

Locations: Home, Flaxton, QLD, Australia

Data source: Backyard

Description

LDN 235 - (Lynds') Dark Nebula aka Barnard 84

NGC 6440 - Globular cluster

NGC6445 aka Little Gem Nebula or Box Nebula - Planetary Nebula

Rev A: Too green, forgot SCNR.

Rev B: SCNR applied!

Rev C: Went back to A and got colour calibration to work (could not get the PhotometricColorCalibration to work though). No SCNR used

Comments

Revisions

  • LDN 235, NGC 6440, NGC 6445 (Little Gem Nebula), 



    
        

            Chris Ryan
    Original
  • LDN 235, NGC 6440, NGC 6445 (Little Gem Nebula), 



    
        

            Chris Ryan
    B
  • Final
    LDN 235, NGC 6440, NGC 6445 (Little Gem Nebula), 



    
        

            Chris Ryan
    C

Sky plot

Sky plot

Histogram

LDN 235, NGC 6440, NGC 6445 (Little Gem Nebula), 



    
        

            Chris Ryan