Merope and surrounding reflection nebula (NGC 1435)
Magnitude: 4.12 (Merope itself)
Distance: 360 light years
RA: 3h 46m 31s
Dec: 23 degrees 57' 36"
The star Merope is part of the Pleiades open
star cluster (M45) and is surrounded by one of the brightest reflection
nebulae of this group (NGC 1435). The reflection nebulosity of
NGC 1435 spans about 0.5 degrees, or about the size of the full moon.
During visual observation, there is a hint of nebulosity in a
small scope such as an 8"
SCT, although the full extent can only be observed in longer exposure
such as this one.
Date: September 29, 2003
Scope: LX90 at f6.3, Lumicon OAG
Autoguider: SBIG STV with e-finder
Camera: Canon 10D
Filter: IDAS LPS
Exposures: 6 x 9' each at ISO1600.
49 degrees F; average transparency; average seeing; wind minimal.
Post-processing: Raw conversion,
adaptive dark frame subtraction, alignment, autograding, min/max
excluded averaging, and background compensation done in ImagesPlus;
levels and curves adjustment in Photoshop; final smoothing done in
Pleiades SGBNR software.
note: Graphics on this website may not be reproduced without
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