Search found 19 matches

by cjacobson
04 Aug 2020, 16:37
Forum: General
Topic: plate solve failure
Replies: 4
Views: 76

Re: plate solve failure

for the horizontal field I use the numbers derived by your computer. I input the sensor size in mm ie 23, and the focal length of the scope, mostly 900mnm=1.79degrees or 89arcmin. I have tried varying the numbers and have even tried your default 15. No help. I have changed the fov from its default t...
by cjacobson
04 Aug 2020, 05:52
Forum: General
Topic: plate solve failure
Replies: 4
Views: 76

plate solve failure

I have been trying to plate solve with AA7 . this has been a general failure. I can solve your "images" except the one of m57 which will not solve. I have entered a bunch of my fits images and they do not solve at all. I am careful about the ccd width and the focal lengths and still no success. I ha...
by cjacobson
27 Jul 2020, 03:20
Forum: General
Topic: ucac 4
Replies: 3
Views: 167

Re: ucac 4

thanks for the information cjacobson
by cjacobson
19 Jul 2020, 04:23
Forum: General
Topic: ucac 4
Replies: 3
Views: 167

ucac 4

I have spent some time at the Naval Observatory web site for a downloadable data base(index). I find lots of peripheral information but not a downloadable large file. Where is this?? Also what are the camera and focal length aspects of your trial files for practice. I could not plate solve them. tha...
by cjacobson
20 Jun 2020, 16:08
Forum: General
Topic: gsc1.1
Replies: 4
Views: 267

Re: gsc1.1

never mind after some struggle it worked. I do not know what goes wrong some times. Btw do I need a second star atlas and which one for general plate solving? Sorry to be a bother. jacobson
by cjacobson
20 Jun 2020, 15:51
Forum: General
Topic: gsc1.1
Replies: 4
Views: 267

Re: gsc1.1

I can not do that as my hard drive and mother board died and have been replaced. I have opened the gsc file in documents and asked aa7 to see it. It does not. I have placed the file in the root of the c drive as well. It did not see it there. by opened i mean I un packed it. What am I doing wrong? t...
by cjacobson
19 Jun 2020, 03:14
Forum: General
Topic: gsc1.1
Replies: 4
Views: 267

gsc1.1

I tried to install my previous gsc data from a zipped file used for AA6. I have dumped this several places. the star preferences module does not recognize it. I unzipped it in a folder called gscdata. I have never had this problem before. What is wrong?? thanks
I have installed AA7.
by cjacobson
04 May 2020, 03:20
Forum: General
Topic: bias fits vs data fits frames with cmos camera
Replies: 2
Views: 679

Re: bias fits vs data fits frames with cmos camera

tha;nks for you lucid and quick reply. Very helpful. cjacobson
by cjacobson
30 Apr 2020, 19:57
Forum: General
Topic: bias fits vs data fits frames with cmos camera
Replies: 2
Views: 679

bias fits vs data fits frames with cmos camera

I have started to use an ASI camera zwo 1071 with a sony chip. I produced bias, flats, darks and image frames. The bias frames are all read out by Pixinsight as an adu of 8000 when they are really 280. PI says this due to the AA6 fits data for the bias were not read out as unsigned. I do not exactly...
by cjacobson
08 Apr 2020, 17:20
Forum: Instrumentation
Topic: focus window and operation
Replies: 9
Views: 1131

Re: focus window and operation

I have resolved this problem with the help of you all and Fabio. I was trying to do this on my own previous images until it was pointed out that I needed to be live. It worked just fine the other night live with a bright star using my refractor at f6 with a bayer matrex narrow band filter( OPT's). I...