AMATEUR ASTRONOMY PAGES
Javier Gómez Laina                                                
                                                       ngc884 & 889  -  Perseus Double Cluster
             


Object:             Double open cluster in Perseus
Optics:             TeleVue TV-76  with 0.8x  reducer (f 384mm). IDAS LPS filter.
Camera:           Canon 350d  modified (infrared filter removing)
Exposures:       14 x 300"  -  30 x 180'  ;   2h:40' total exposure
ISO:                 800
Date:                20 & 27 Jan 2006
Mount:              Home made aluminum fork controled by Angel Caparrós' PicGoto system.
Guiding:           MX716 on 250 f/4.8 Newton
 

Processing:

Darks & Flat calibration
SDMask combining
Dynamic Background Extraction (sky gradient correction)
Digital Development Processing (DDP)
Curves adjust

Software:
ImagesPlus, PixInSight, PhotoShop.