Try increasing gamma if dark sections aren't distinguished

Try increasing gamma if dark sections aren't distinguished

Friday, December 25, 2020

Gas giants 2020 including disturbance in jupiter's NEZ with methane filter

 Taking a break from conjunction processing to post these larger images of the gas giants:

Saturn 9-25-2020 03:49 UTC RGB

Saturn 9-25-2020 03:49 UTC RGB


Jupiter 9-25-20 03:23 UTC
note white dot in the upper band, a disturbance in the northern equatorial zone noted this past summer

Jupiter 9-25-20 03:23 UTC Methane filter
enhancing disturbance in upper atmosphere of NEZ
(white dot upper half)

Methane RGB
Jupiter 9-25-20 03:23 UTC Methane filter as red, green, blue
enhancing disturbance in upper atmosphere of NEZ

Previous post with more information on jupter images with a methane filter:

image details:
celestron 11" Edge HD
ZWO ASI 290MM
zwo RGB filters
Baader methane 889 nm 8 nm bandwidth
sharpened in registax
combined in winjupos
Jupiter: 9-25-20 03:23 UTC
Saturn 9-25-2020 03:49 UTC
no sign of the hex :(
fair seeing
Eastbluff
Southern California

Sunday, December 13, 2020

winter is coming...a geminid

Here a few wide fields and my attempt at imaging the classic winter meteor shower, the geminids (night before peak which was clouded out).  

Orion Rising...winter is coming.  when you see orion rising in the early evening, winter is on the way.  note Betelguese (red "shoulder" upper left) no longer faded:

Orion rising 12/12/20
have to do something about that fence :(

here are a few hours worth of star trails.  only one sad meteor, can you find it?

Star trails 12/12/20

close up:

a geminid

Localized:

a geminid 12/12/20



image details:
12/12/20, eastbluff, CA
Bortle white skies
nikon D850
Sigma 15mm F/5 EX DG fisheye
30 sec, iso 200

Saturday, December 5, 2020

Uranus 12/1/2020 07:15 UTC

Uranus 12/1/2020 07:15 UTC IR(685)-RGB
Planetary north up


Image details:
camera ZWO ASI 290MM
ZWO RGB, Baader IR pass 685 nm filters
celestron 11" Edge HD
East Bluff, CA
12/1/20 07:15 UTC
fair seeing 3/5 on clear dark sky clock
120 second captures, 2x each color filter, 3 sets of 3 for IR 685
gain 456 , exposure ~12 ms red, 5 ms green, 8 ms blue, 31 ms IR 685 30% histogram
upsampled x2 in autostakkert, derotated in winjupos.
initial wide field capture with moons key to alignment in winjupos.  
oriented planetary north up.  
color balance-eyeballed ;)
tried a methane filter...not enough signal

RGB only:
Uranus 12/1/2020 07:15 UTC RGB