Search found 70 matches

by han.k
09 May 2018, 14:50
Forum: HNSKY News
Topic: New native databases based on Gaia DR2
Replies: 0
Views: 41

New native databases based on Gaia DR2

To all HNSKY users, Three new star databases are released. They are based on the Gaia DR2 release from ESA. Are you a visual observer, you could download the G16 . Astrophotographers could download the G17 and or G18 . Or you just keep the old databases. They don't contain a real star designation (n...
by han.k
25 Apr 2018, 18:35
Forum: HNSKY News
Topic: Gaia DR2 access via HNSKY
Replies: 0
Views: 117

Gaia DR2 access via HNSKY

The Gaia DR2 star catalogue is released today. For people who are interested, it is online accessible by HNSKY 4.0.0f under the same Gaia menu option. It could be slow the coming days since a lot of gbytes are downloaded from Vizier. Most people will see no the difference. The current catalogues are...
by han.k
23 Apr 2018, 13:55
Forum: ASTAP General
Topic: HNS_FV -> ASTAP
Replies: 15
Views: 926

Re: HNS_FV -> ASTAP

Hello Ruedi,

In the latest version PlateSolve2 is replaced by the internal ASTAP solver. It should works the same. So ASTAP can mimic PlateSolve2. :)

Han
platesolve2_options.png
platesolve2_options.png (38.58 KiB) Viewed 176 times
by han.k
19 Apr 2018, 14:05
Forum: ASTAP General
Topic: ASTAP FITS file
Replies: 8
Views: 290

Re: ASTAP FITS file

Hello Jim, The team of Astronomy.net is flexible. Note that I just released an ASTAP version with its own internal solver. Very preliminary, but the question comes up if I should keep on supporting PlateSolve2. I could now fully mimic Platesolve2 rather then being an interface. If you have time, can...
by han.k
19 Apr 2018, 12:48
Forum: ASTAP News
Topic: ASTAP 0.9.30 has it's own internal plate solver.
Replies: 0
Views: 127

ASTAP 0.9.30 has it's own internal plate solver.

To all, I just released version 0.9.30 of ASTAP. This version has it's own internal plate solver. I think it works well but more testing is required. It has not many settings. First you have to download the U16 star database of 419 mbytes. Just extract it in the program directory. /opt/astap Then th...
by han.k
12 Apr 2018, 19:55
Forum: ASTAP General
Topic: ASTAP FITS file
Replies: 8
Views: 290

Re: ASTAP FITS file

Hello Jim,

Above is maybe too complicated. You better just use the sensor_size in (micro)meter and image_size in degrees in the same formula. This will give the correct result for the original and stretched image.

Han
by han.k
12 Apr 2018, 15:39
Forum: ASTAP General
Topic: ASTAP FITS file
Replies: 8
Views: 290

Re: ASTAP FITS file

Hello Jim, The calculations and keywords are as follows: focal_length[m]=pixelSize*3600*180/(PI()*pixel_astro_size*1000000) where pixel size in micrometer pixel_astro_size in arc sec So for your telescope: 0.754=5.19*3600*180/(PI()*1.42*1000000) So focal length is 0.754 meter. in SI units: focal_len...
by han.k
12 Apr 2018, 09:54
Forum: ASTAP General
Topic: ASTAP FITS file
Replies: 8
Views: 290

Re: ASTAP FITS file

Hello Jim,

I don't know if you use the viewer, but to assist I added the image dimensions in pixels and degrees to the status bar.

Han
image1.jpg
image1.jpg (63.79 KiB) Viewed 277 times
by han.k
11 Apr 2018, 21:49
Forum: ASTAP General
Topic: ASTAP FITS file
Replies: 8
Views: 290

Re: ASTAP FITS file

Hello Jim, The difference is due to the scaling of the FITS file in ASTAP. The FITS file produced in pixels is much smaller then the JPEG and therefore the arcsec/pixel is larger. If you look to the FITS file height & width it should be correct. I looked to the Jpeg and FITS file still available fro...
by han.k
10 Apr 2018, 15:44
Forum: ASTAP News
Topic: ASTAP 0.9.26, sorting on IMAGETYP
Replies: 0
Views: 74

ASTAP 0.9.26, sorting on IMAGETYP

To all ASTAP users, The latest version 0.9.26 (MS-Windows, Linux 64 bit) has some new features: Automatic sorting of lights, dark and flats. Images placed in the first tab will be organised based in the keyword IMAGETYP. So as soon you click on the analyse button, dark and flats and flat darks/bias ...