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Getting plate-solving status, please wait...


            Gary Imm


Technical card

Resolution: 3431x2224

Dates:Nov. 1, 2018

Astrodon Blue 31mm Gen2 I-Series: 60x60" (gain: 139.00) -20C bin 1x1
Astrodon Green 31mm Gen2 I-Series: 60x60" (gain: 139.00) -20C bin 1x1
Astrodon Ha 31mm 5nm: 18x300" (gain: 139.00) -20C bin 1x1
Astrodon Red 31mm Gen2 I-Series: 60x60" (gain: 139.00) -20C bin 1x1

Integration: 4.5 hours

Avg. Moon age: 23.01 days

Avg. Moon phase: 40.89% job: 2386321

RA center: 1h 23' 7"

DEC center: +61° 51' 28"

Pixel scale: 0.782 arcsec/pixel

Orientation: 84.570 degrees

Field radius: 0.444

Locations: Backyard (Mag 20.8 - New Moon), Onalaska, Texas, United States

Data source: Backyard


This object, also known as LBN 630, is a small HII emission region located 5000 light years away in the constellation of Cassiopeia.

Many dark nebulae are seen throughout the image as well as faint blue reflection nebulae. Most of these other nebula are not designated. The few that are designated are dark nebula LDN 1317 (at the center) and Dobashi 3792 (check mark shape on the right side).

Not much has been written about this object. I like the shapes of the dark silhouetted clouds at the center, as well as the colorful surrounding star field.



Gary Imm
License: None (All rights reserved)

Sky plot

Sky plot




            Gary Imm