richardda1st
13-10-2009, 06:09 PM
:hi:
All made and assembled, but not quite right yet.
Will post some pics and notes when sorted, for anyone who may be interested.
I'm having trouble getting the azimuth to read as per Stellarium & Cartes du Ciel software.
Can someone see where I'm going wrong in my setup?
To get my azimuth/altitude for a given target I:
1. check my location's longitude/latitude using google and others from the net and set this into Stellarium & Cartes du Ciel (37d 41m 54s SOUTH / 144d 33m 47s EAST).
2. set the software time by taking off daylight saving time from the computer, and as I am 5.5degrees west of AEST at 150d I also move my time back by 22 minutes (5.5x4)
3. get jupiters and Rigels az/alt, for a given time.
4. calibrate the inclinometer by centering the scope to Jupiter using a 6mm ep.
5. zero the inclinometer with Jupiter centered in the 6mm ep.
6. lower the scope to horizontal till the inclinometer reads Jupiters alt, and reset to zero again,and back up to Jupiter which should read the previous alt setting. This I think is an accurate way to set the inclinometer.
7. turn my azimuth scale to Jupiter's az with Jupiter centered in the 6mm ep.
8. to check all this out I turn my scope to Rigel and take the readings.
While the altitude is close to within 1 degree (keeping in mind that the az/alt are constantly changing), the azimuth reading is up to minus 7 degrees out.:eyepop::screwy::sadeyes:
The azimuth scale I made myself using cad and professionally printed onto a full size sheet.
I'm pretty sure it's accurate.
Where am I going wrong?:shrug::question::confused2:: screwy:
Anyone
:thanx:
Richard
All made and assembled, but not quite right yet.
Will post some pics and notes when sorted, for anyone who may be interested.
I'm having trouble getting the azimuth to read as per Stellarium & Cartes du Ciel software.
Can someone see where I'm going wrong in my setup?
To get my azimuth/altitude for a given target I:
1. check my location's longitude/latitude using google and others from the net and set this into Stellarium & Cartes du Ciel (37d 41m 54s SOUTH / 144d 33m 47s EAST).
2. set the software time by taking off daylight saving time from the computer, and as I am 5.5degrees west of AEST at 150d I also move my time back by 22 minutes (5.5x4)
3. get jupiters and Rigels az/alt, for a given time.
4. calibrate the inclinometer by centering the scope to Jupiter using a 6mm ep.
5. zero the inclinometer with Jupiter centered in the 6mm ep.
6. lower the scope to horizontal till the inclinometer reads Jupiters alt, and reset to zero again,and back up to Jupiter which should read the previous alt setting. This I think is an accurate way to set the inclinometer.
7. turn my azimuth scale to Jupiter's az with Jupiter centered in the 6mm ep.
8. to check all this out I turn my scope to Rigel and take the readings.
While the altitude is close to within 1 degree (keeping in mind that the az/alt are constantly changing), the azimuth reading is up to minus 7 degrees out.:eyepop::screwy::sadeyes:
The azimuth scale I made myself using cad and professionally printed onto a full size sheet.
I'm pretty sure it's accurate.
Where am I going wrong?:shrug::question::confused2:: screwy:
Anyone
:thanx:
Richard