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

Saturday, November 28, 2020

Random moon pics

Here are a few random pics of the moon. i'm not much of a lunatic, can't really name craters etc.  just grabbed a few pics when it caught my eye while setting up image sessions.  

lunar halo 11/29/20

lunar halo close up composite 11/29/20

a nice crescent captured with my deep sky camera on a 4" refractor while imaging hickson 68.  single shot, no stacking:

Moon 4-26-2020-03:30-UTC

Next a moon walk on the terminator during a waxing gibbous with a high magnification planetary set up:

Moon 9/25/2020 03:05 UTC (click for full size)




mosaic, 9/25/2020 03:05 UTC (click for full size moon walk)


image details:
lunar halo
nikon D850
wide field: Sigma 15mm F2.8 EX DG fisheye
close up: AF-S DX NIKKOR 16-85mm F3.5-5.6G ED VR 16 mm
11/29/20 east bluff, CA

crescent
FS102 OLV @ 627.8 mm,
Starlight Xpress Trius 694, 1.49"/Pixel
ASA DDM60
4-26-2020 03:30 UTC
east bluff, CA

close ups:
camera ZWO ASI 290MM
Baader IR pass "685" nm
celestron 11" Edge HD
ASA DDM60
9/25/2020 03:05 UTC
east bluff, CA

Tuesday, October 20, 2020

Mars opposition 2020

 Here's mars shortly after 2020 opposition:

Mars RGB 10/14/2020 0758_5-UTC


Mars IR-RGB 10/14/2020 0758_5-UTC

Note that the bottom image, which uses IR as luminance gives sharper detail and contrast for the dark surface structures, but loses the detail at and around the southern polar cap as well as the bight bluish cloud? near the northern pole (upper right, which was visible in the eyepiece)

This year's opposition was much better than 2018 visually, as there was no dust storm obscuring the surface and it occurred at higher elevation for northern hemisphere observers.
https://astrowhw.blogspot.com/2018/07/mars-closest-approach-7312018.html

Image details:
10/14/2020  07:48-08:09 UTC
celestron 11" Edge HD
televue 2x barlow
ZWO ASI 290MM
ZWO RGB filters, Baader IR pass "685" nm
2x120 second captures each filter, 200 FPS
gain 351, exposure ~1 ms, 30% histogram
firecapture, autostakkert, winjupos, maxim, photoshop
elevation ~60 degrees
Eastbluff
Southern California