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LDN 1355, LDN 1357, LBN 643, VdB 7 & VdB 9

Technical card

Resolution: 3900x3900

Dates:Sept. 4, 2019

Frames: 153x300"

Integration: 12.8 hours

Avg. Moon age: 5.72 days

Avg. Moon phase: 32.64% job: 2902090

RA center: 43.247 degrees

DEC center: 69.196 degrees

Pixel scale: 1.236 arcsec/pixel

Orientation: 269.668 degrees

Field radius: 0.947 degrees

Locations: Remote Observatory, Southern Alps, France, None

Data source: Own remote observatory

Remote source: Non-commercial independent facility


This is one of my most challenging targets so far.

This image includes the reflection nebulae VdB 7 and VdB 9 and also several dark nebulae. Vdb 7 (lower right) lies in proximity of RZ Cassiopeiae. The nebula is located just to the left of this star. The illuminating star however is not RZ Cassiopeiae, but a much weaker star, of eleventh magnitude. Regarding VdB 9, its illuminating star is the fifth magnitude SU Cassiopeiae, a white-yellow dwarf Cepheid, at a distance of about 1,400 light-years from Earth



Bart Delsaert

Sky plot

Sky plot


LDN 1355, LDN 1357, LBN 643, VdB 7 & VdB 9, 


            Bart Delsaert