Search found 33 matches

by Rudi
22 Jun 2019, 04:57
Forum: Instrumentation
Topic: Ambient temperature in FITS header?
Replies: 3
Views: 41

Re: Ambient temperature in FITS header?

Thanks Fabio. It’s still not in stock, so I haven’t gotten it yet, I’ll try asking ZWO.
by Rudi
20 Jun 2019, 05:06
Forum: Instrumentation
Topic: Ambient temperature in FITS header?
Replies: 3
Views: 41

Re: Ambient temperature in FITS header?

If the ZWO EAF sends temperature over ASCOM, I suppose it will be AOCAMBT:

Code: Select all

AOCAMBT – ASCOM Observatory Conditions – Ambient temperature in degrees C
See https://diffractionlimited.com/help/max ... itions.htm
by Rudi
19 Jun 2019, 15:09
Forum: Instrumentation
Topic: Ambient temperature in FITS header?
Replies: 3
Views: 41

Ambient temperature in FITS header?

I see that the sensor temperature from my ZWO ASI 1600 MM Pro is stored along in the fits header. If I have an ambient temperature sonsor, will it be possible to store this value in fits header as well? I have ordered a ZWO EAF ( https://astronomy-imaging-camera.com/product/zwo-eaf ) with a temperat...
by Rudi
08 Jun 2019, 08:52
Forum: Instrumentation
Topic: Autofocusing in the sequencer
Replies: 5
Views: 117

Re: Autofocusing in the sequencer

Thanks.

How does AA do the autofocusing? Does it take a picture and look at some stars FWHM, and then try to minimize them taking more pictures (V-curve)?
by Rudi
06 Jun 2019, 05:08
Forum: Instrumentation
Topic: Autofocusing in the sequencer
Replies: 5
Views: 117

Re: Autofocusing in the sequencer

Thanks Fabio. I missed that.
So setting focuser position to 99999 in AA7 SP1 means autofocus?

Can’t wait to get a ZWO EAF and try it out!
by Rudi
05 Jun 2019, 07:49
Forum: Instrumentation
Topic: Autofocusing in the sequencer
Replies: 5
Views: 117

Autofocusing in the sequencer

ZWO is about to release their auto focuser, ZWO EAF, very soon (I think you can already buy it directly from ZWO). https://astronomy-imaging-camera.com/product/zwo-eaf ZWO-EAF.JPG So I was wondering, is it possible to include auto focusing in the sequencer, for example between each filter shift? As ...
by Rudi
17 May 2019, 13:44
Forum: Image processing and analysis
Topic: FITS file doubles in size after preprocessing
Replies: 11
Views: 190

Re: FITS file doubles in size after preprocessing

Ok Fabio. I will use dark flats next time.
I was also recommended doing that for my new camera on a danish Astro site.
by Rudi
17 May 2019, 09:52
Forum: Image processing and analysis
Topic: FITS file doubles in size after preprocessing
Replies: 11
Views: 190

Re: FITS file doubles in size after preprocessing

Statistics for one of the lights: Name ........... #2 m100_L_60s_001.fit Path ........... C:\Users\Bruger\Rudi Dropbox\Main\astro\2019\0512\ Size ........... 4656 x 3520 Telescope ...... 12 22.9 +15 48 Pixels ......... 16389120 Min ............ 3952 @ 80,3357 Max ............ 65504 @ 4210,2681 Backg...
by Rudi
17 May 2019, 06:59
Forum: Image processing and analysis
Topic: FITS file doubles in size after preprocessing
Replies: 11
Views: 190

Re: FITS file doubles in size after preprocessing

Hi Fabio, I tried using stacking method "Average", but still, the result file is 64 MB and it has BITPIX = 32 !!! If I follow the steps below, the change seems to happen when the picture is saved. Preprocessing 16 bit fit files using "Average" method http://b-rasmussen.dk/astro/astroart/aa7/20190517...
by Rudi
15 May 2019, 15:37
Forum: Image processing and analysis
Topic: FITS file doubles in size after preprocessing
Replies: 11
Views: 190

Re: FITS file doubles in size after preprocessing

Thanks for the answer Fabio.
What stacking method would You recommend for a ZWO ASI 1600MM Pro at unity gain or below?
It’s a 12 bit camera.