Venus cloud detail, 05/02/2020

[lukebl]

I managed to capture some interesting detail on Venus this afternoon.

This was captured with a Baader U-filter, 3x Televue Barlow, Omegon RC8 (effective focal length 4800) and an Altair GPCAMv2 130 Mono camera. 2500 frames

The trouble with this filter is that it allows so little light through that the exposures were 250ms, so it's impossible to properly catch the seeing. Does anyone else manage faster exposures with this filter? Quite pleased with the result, though.

Edited February 5, 2020 by lukebl

[CraigT82]

Very nice, I'd be well pleased with that!  Sorry dont own a UV filter so can't comment on that.  Did you have the gain cranked up?

[Ibbo!]

Grear result.

Can't help with your exposure times as i have only managed one very poor outing with my UV filter.

[Owmuchonomy]

Getting any detail for Venus is a great result.

Edited February 5, 2020 by Owmuchonomy

[lukebl]

3 hours ago, CraigT82 said:

... Did you have the gain cranked up?

Thanks for the comments. Yes, gain was cranked up to maximum, using Sharpcap. The sky was a bit hazy, so I could probably get faster exposures with a clearer sky.

[maw lod qan]

Very nice! 

[orion25]

Great detail! Thanks for posting

Reggie

[Sunshine]

I didn't know that degree of detail was possible, short of an observatory grade scope, amazing!

[tooth_dr]

Amazing.  Venus was shining brightly tonight.

[Pete Presland]

Some very nice detail visible there. My exposure with my C9.25 and the same filter are around 14ms.  

This is the Firecapture log details for my latest image.

Camera=ZWO ASI290MM
Filter=UV
Profile=Venus
Diameter=15.02"
Magnitude=-4.09
FocalLength=8750mm
Resolution=0.14"
Filename=2020-01-28-1708_2-UV-1.ser
Date=280120
Start=170814.156
Mid=171130.160
End=171446.164
Start(UT)=170814.156
Mid(UT)=171130.160
End(UT)=171446.164
Duration=392.008s
Date_format=ddMMyy
Time_format=HHmmss
LT=UT 
Frames captured=26328
File type=SER
Binning=no
ROI=640x480
ROI(Offset)=0x0
FPS (avg.)=67
Shutter=14.84ms
Gain=425
Brightness=1
WBlue=0
SoftwareGain=10 (off)
USBTraffic=60
AutoExposure=off
Gamma=50
HighSpeed=off
Histogramm(min)=0
Histogramm(max)=196
Histogramm=76%
Noise(avg.deviation)=n/a
Limit=none
Sensor temperature=15.5 °C