HIGH-RESOLUTION WHITE LIGHT ( CONTINUUM ) IMAGING
Figure 7- Registax : Reset the Wavelet filter ( 500 to 1000 center value )
COURTESY OF Pedro Ré
COURTESY OF Pedro Ré
Figure 8- Registax : Use layer 1 , 2 and 3 of Wavelet filter - gaussian ( try several options )
Figure 9- Registax : DO ALL button
COURTESY OF Pedro Ré
1 . Acquire high resolution High- Resolution WL images 2 . Save AVI files ( 8 bits ) or SER files ( 12 bits ) 3 . Open AVISTACK http :// www . avistack . de / or AUTOSTAKKERT http :// ww . autostakkert . com / 4 . Select AVI or SER files - Open movie ( Avistack ) 5 . Turn off Update display ( Avistack ) 6 . Choose Batch processing 7 . Open REGISTAX http :// www . astronomie . be / registax / 8 . Open FIT file ( aligned and stacked in Avisatck ) 9 . Process the stacked image using Wavelet-based image restoration algorithms 10 . Reset the Wavelet filter ( 500 to 1000 center value ) Wavelet Tab ( Figure 7 ) 11 . Use layer 1 , 2 and 3 of Wavelet filter - Gaussian ( try several options ) Wavelet-based image restoration ( Figure 8 ) 12 . Process image ( DO ALL button ) ( Figure 9 ) 13 . Save image ( 16-bit TIFF file ) Save TIFF 16-bit 14 . Process TIFF file in Photoshop 15 . Use Smart Sharpen ( Figure 10 ) 16 . Use Curves to adjust contrast and brightness ( Figure 11 ) 17 . Use False Colour Mapping ( Figure 12 ) 18 . Save the final 16-bit TIF file ( no compression ) 19 . Convert to 8-bit and save JPG file ( no compression )
34
the key to your sky
W il T irion
created by
W il T irion
NORTH
NORTH
0°N
URSA MAJOR
LEO MINOR
Ho
riz
on
3
Hor
izon
50°N
0°N
CANES VENATICI
LYNX
CANCER
Ho
riz
on
2
URSA MAJOR
Hor
izon
40°N
0°N
URSA MINOR
0°N
DRACO
CAMELOPARDALIS
Ho
rizo
n 1
Polaris
Ho
rizo
n 6
created by
the key to your sky
BOOTES
Pollux
M13
Castor
CORONA
BOREALIS
LYNX
GEMINI
Capella
DRACO
AURIGA
Double
Cluster
HERCULES
Deneb
Algol
LYRA
CYGNUS
LACERTA
OPHIUCHUS
VULPECULA
Betelgeuse
Double
Cluster
PERSEUS
Vega
CEPHEUS
LYRA
SAGITTA
SERPENS
CAUDA
Altair
PISCES
DELPHINUS
Algol
PEGASUS
TAURUS
Aldebaran
ORION
M42
Pleiades
Hyades
OPHIUCHUS
CASSIOPEIA
CYGNUS
Deneb
LACERTA
TRIANGULUM
M31
VULPECULA
ANDROMEDA
EQUULEUS
AQUILA
TAURUS
Mira
SERPENS CAUDA
SAGITTA
ARIES
Altair
SCUTUM
AQUARIUS
ERIDANUS
LEPUS
CETUS
PISCES
ECLI
CAPRICORNUS
PTIC
M22
CAELUM
DORADO
D
AUTUMN SKY
For observers at
10° to 30° northern latitudes
INDUS
TUCANA
RETICULUM
PAVO
HYDRUS
OCTANS
SOUTH
SAGITTARIUS
AQUARIUS
n 2
rizo
Ho
CAPRICORNUS
Hor
izon
60°N
0°N
Fomalhaut
TELESCOPIUM
1
on
riz
Ho
47 Tuc
SMC
IC
0°N
HOROLOGIUM
Achernar
PT
CETUS
CORONA
AUSTRALIS
n 3
izo
Hor
GRUS
PHOENIX
LI
ERIDANUS
PISCIS
AUSTRINUS
MICROSCOPIUM
EC
Mira
M8
SAGITTARIUS
FORNAX
AQUILA
EQUULEUS
Fomalhaut
SCULPTOR
SCUTUM
DELPHINUS
PEGASUS
66
ARIES
Rigel
Capella
M35
ANDROMEDA
M31
Hyades
ORION
HERCULES
AURIGA
Pleiades
Aldebaran
Polaris
CAMELOPARDALIS
CASSIOPEIA
TRIANGULUM
M13
URSA MINOR
Vega
PERSEUS
Betelgeuse
GEMINI
CEPHEUS
M35
N
0°
FORNAX
D
AUTUMN SKY
For observers at
40° to 60° northern latitudes
Hor
izon
50°N
Ho
riz
on
4
SCULPTOR
0°N
PISCIS AUSTRINUS
MICROSCOPIUM
GRUS
PHOENIX
SOUTH
67